Clubjazz - Honda Jazz & HR-V Forums

Honda Jazz Forums => Honda Jazz Mk3 2015 - 2020 => Topic started by: Basil on May 14, 2021, 02:25:25 PM

Title: 1.5 Sport
Post by: Basil on May 14, 2021, 02:25:25 PM
Hi, I've noticed a few Mk3 Sports for sale recently and wondered what they are like, a few members seem to have them so I was just looking for some feedback really.

What are they like to drive, do they feel quick, how flexible is the engine, what's it like on fuel and insurance ? 
Title: Re: 1.5 Sport
Post by: Jocko on May 14, 2021, 06:47:40 PM
I have always been under the impression the Sport is only a trim level and does nothing for performance. Mind you, a 1.5 after a 1.2 will give a bit more pep.
Title: Re: 1.5 Sport
Post by: Basil on May 14, 2021, 08:22:51 PM
The Mk3 sport is 130 hp and 0 - 60 in under 9 seconds, it has the same engine as the HR-V and some Civics use the 180 hp turbo version.
Title: Re: 1.5 Sport
Post by: Jocko on May 14, 2021, 09:39:17 PM
Is the 1.5 only available in the Sport?
Title: Re: 1.5 Sport
Post by: equaliser on May 14, 2021, 10:28:02 PM
Is the 1.5 only available in the Sport?

Yes
Title: Re: 1.5 Sport
Post by: Mr 8 on May 15, 2021, 07:13:09 AM
I have had my Sport for three years now; it will be with me for a long time. It is very low geared, it will pootle along at thirty in sixth gear. I have never tried to prove it but I reckon there are mobility scooters with more torque. Where you will find the 130 bhp is in the middle gears above 3000 rpm. It is a normally aspirated 4 cylinder engine and with no turbo, combined with its gearing, it has poor first gear acceleration. Mid range though, is very acceptable. It is not a hot or even 'warm' hatch. Insurance is, in my case, on a par with what I was paying previously for a Skoda Roomster. Fuel consumption hovers around 50mpg. I only use Shell V Power. Happy to answer any questions.
Title: Re: 1.5 Sport
Post by: Kremmen on May 15, 2021, 07:18:08 AM
When I saw a 1.5 Jazz I had a look but I found the trim level nowhere near the EX so I backed off.

I didn't go for the 1.3 CVT EX because of the poor engine mated to CVT reviews.
Title: Re: 1.5 Sport
Post by: Westy36 on May 15, 2021, 08:56:51 AM
I think they are very good looking. Nice red stripe on the lower bumper and bigger boot spoiler to let you know it's the sporty model. I would like to upgrade to a MK3 in the future, and would certainly put the Sport on the list. Be interested to find out if the ride is any different to a standard model though.

0-60 in 9 seconds is fairly brisk, and I have no problem using revs from time to time.  :D

(https://media.evo.co.uk/image/private/s--_MYZPfPR--/v1556218971/evo/2018/01/112194_honda_reveals_fresh_look_and_new_engine_option_for_jazz_supermini.jpg)

(https://www.carmag.co.za/wp-content/uploads/2018/02/honda-1.jpg)

(https://doubleapex.co.za/wp-content/uploads/Honda-Jazz-Sport-rear.jpg)

https://www.autoexpress.co.uk/honda/jazz/102456/new-honda-jazz-sport-2018-review
Title: Re: 1.5 Sport
Post by: SuperCNJ on May 16, 2021, 02:36:17 AM
We've had the 1.5 Sport for a while now and it is very good overall, performance compared to our old 1.4 Mk1 Sport is noticeably better. It's no hot hatch but there is certainly enough power and torque is decent enough for a Jazz, definitely better than all the other Jazz's I've driven so far.

Fuel consumption is on par with our old 1.4 MK1, not noticeably more thirsty though I'm sure if I worked it out properly it might be slightly worse but given the better performance and driveability its definitely not an issue for us.

Insurance, we're on a multicar deal paying around £400/yr.

There are a few things to be aware of that are small annoyances for us...

1. Squeaky clutch pedal - We had this problem for a little while but then after spraying some lubricant on it it seems to have gone away.
2. Engine hesitancy at just below 2k rpm - Sometimes at a certain rpm below 2k, there seems to be a sudden dip in power which is a little annoying but not a "problem" as such.
3. Rear head room - As the interior trim on the roof curves in, some people will find it touches their head when sitting up straight. I think the car is not as tall as the MK1 so there is definitely less head room because of this compared to our MK1 Jazz.
4. Crosswind stability at motorway speed - This is a problem for all lightweight cars but it seems a little worse compared to our old MK1. When fully loaded with passengers our MK1 was actually reasonably stable whereas with our MK3 sport, it seems a bit more susceptable even when fully loaded.
5. Dash reflection on windscreen - On sunny days, you can see the textured plastic dash reflected on the windscreen which is quite annoying and sometimes distracts you. But we've learnt to live with it.
6. Driver seat, I get a slight backache with the seat after a long drive but doesn't seem to affect my wife so it might just be me.

Other than the above, we love everything else with the sport, the looks, the way it drives, the little gimmicks and so we plan to keep it for quite some time.
Title: Re: 1.5 Sport
Post by: monkeydave on May 16, 2021, 03:03:16 AM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
Title: Re: 1.5 Sport
Post by: Westy36 on May 16, 2021, 10:16:11 AM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?

Top speed is of no concern, I'm not going to be doing more than NSL +10% again.  :D

I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.
Title: Re: 1.5 Sport
Post by: embee on May 16, 2021, 10:52:50 AM
....What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?....
No, fuel type doesn't really help.
The reason for the build up is that with direct injection the fuel goes "directly" into the cylinder, it is not sprayed onto the back of the inlet valves as in port injection which helps clean deposits. The build up is due to a combination of oil down the valve guides (perfectly normal, they need lubricating, valve stem "seals" are actually metering devices to allow just the right minimum amount of oil down the guide), blowby gas carrying oil and contaminants through the crankcase ventilation system ("breather"), and backflow of combustion gas through inlet valves (during overlap and by "internal EGR" using the variable valve timing feature where a certain amount of combustion gas is allowed back to be mixed with incoming fresh air which lowers the NOx and avoids the need for external EGR systems).
I'm not sure whether there are products which can be sprayed into the intake to help clean these deposits, it's an unfortunate aspect of DI gasoline technology.
I haven't looked into how Jazz owners deal with this issue, interested to learn. It was one of the factors I considered before buying the 1.3 Jazz (port injected), had it been GDI it probably wouldn't have been on my list.
Title: Re: 1.5 Sport
Post by: Jocko on May 16, 2021, 12:29:45 PM
I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.
Tyre noise on any car is mainly due to the make and model of the tyre and the width. Of two Bluearth ES32 tyres the wider tyre with the larger footprint will be the noisier. However, a Ying Yang el-cheapo tyre will probably be noisier irrespective of the width. My Bluearth 4S tyres are noisier than the ES32s due to their all-weather capability.
Title: Re: 1.5 Sport
Post by: Basil on May 16, 2021, 02:14:37 PM
Thanks for the replies, quite interesting but slightly concerned about the carbon build-up - would a regular blast at high revs help prevent it ?

Are the service intervals the same as the 1.3 and are servicing costs any higher ?
Title: Re: 1.5 Sport
Post by: monkeydave on May 16, 2021, 02:21:46 PM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?

Top speed is of no concern, I'm not going to be doing more than NSL +10% again.  :D

I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.


not much can be done about the carbon buildup , if you get it you will need the garage to clean it out  as the fuel never passes behind the intake valves as on the 1.3 and keeps them clean
Title: Re: 1.5 Sport
Post by: culzean on May 16, 2021, 02:34:06 PM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?

Top speed is of no concern, I'm not going to be doing more than NSL +10% again.  :D

I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.


not much can be done about the carbon buildup , if you get it you will need the garage to clean it out  as the fuel never passes behind the intake valves as on the 1.3 and keeps them clean

Yeah, dirty valves seems to be a feature of direct injection engines ( even German ones  :o ), no matter how they are driven.
Title: Re: 1.5 Sport
Post by: Jocko on May 16, 2021, 03:29:08 PM
not much can be done about the carbon buildup
What I once saw recommended was to spray water into the intake at regular intervals. As soon as it reaches the valve area it turns to steam, and effectively "steam cleans" the surfaces.
I've done, it a long time ago, with carburettor engines, where I would up the revs and slowly spoon a glass of water through the carb. Never knew how effective it was but it never did any harm. Found this reference on line.

David Andruczyk, Volunteer Mechanic at National Warplane Museum (2008-present)

That’s an old-time trick to clean the cylinders of carbon ‘in the old days’. For a good and hot engine, an appropriate quantity of water ingested while running at a suitably high enough RPM will flash to steam and effectively steam-clean the cylinders. Too much and you’ll stall it, way too much and you risk hydrolocking it as water doesn’t compress and causing severe engine damage (bent/broken connecting rods). Small amounts won’t do anything noticeable at all.
Title: Re: 1.5 Sport
Post by: John Ratsey on May 16, 2021, 04:09:07 PM
the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
You got me worried. :o However, my Crosstar has an LEB8 engine and this site https://carparts24.co.uk/spare-parts/honda/jazz-v/1.5-ehev-gr3-72kw says "Fuel type process Intake Manifold Injection/ Carburettor" which I think means port injection. Wikipedia lists a family of LEB engines https://en.wikipedia.org/wiki/Honda_L_engine#LEB8_(i-VTEC_+_Sport_Hybrid_%E2%80%9Ci-MMD%E2%80%9D_(Intelligent_Multi_Mode_Drive)). Whatever went into the Mk 4 Jazz would have been selected for economy and reliability.

Also, the engine in the Mk 4 Jazz is rated at 98HP while the motor is capable of the 108HP (presumably with the engine working hard and some extra power from the battery).

Title: Re: 1.5 Sport
Post by: SuperCNJ on May 16, 2021, 04:12:09 PM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?

Top speed is of no concern, I'm not going to be doing more than NSL +10% again.  :D

I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.

With the carbon build up, there is some evidence that v-power fuel does help to reduce this although you may have to use it continuously to get the benefit. My 135i has been running v-power since new and other owners claim it does help with carbon build-up although it won't eliminate it. In the US they generally use additives that you put into the engine/fuel that claims to clean it out - this will be the option we'll be going for when the time comes otherwise it will be a walnut blast which is expensive.

Tyre noise is partly to do with the tyre (e.g. stiff side walls will be noiser... ) but a large part of it is to do with the cars sound insulation and deadening. As the Jazz is built to a budget it lacks sound insulation, especially inside the wheel arches and bulkhead. If this is something that concerns you, you can have sound insulation retrofitted which will make a considerable difference but also adds weight to the car. I tried to do this myself in my old civic type-r and it definitely made a difference.




Title: Re: 1.5 Sport
Post by: culzean on May 16, 2021, 04:24:04 PM
its got a direct injection engine so may carbon up on the intake valves at higher mileages

also the top speed is the same as the 1.3 even though the 0-60 is quicker

the engine is still used in the mk4 hybrid but is de tuned to 108hp from 130hp
What can be done about the carbon build up? Higher octane fuel, V-Power etc and regular servicing?

Top speed is of no concern, I'm not going to be doing more than NSL +10% again.  :D

I have read that tyre noise on the motorway is a bit louder than the standard model. I guess a test drive is the best way to determine that. Not many on the market though.

With the carbon build up, there is some evidence that v-power fuel does help to reduce this although you may have to use it continuously to get the benefit. My 135i has been running v-power since new and other owners claim it does help with carbon build-up although it won't eliminate it. In the US they generally use additives that you put into the engine/fuel that claims to clean it out - this will be the option we'll be going for when the time comes otherwise it will be a walnut blast which is expensive.

Tyre noise is partly to do with the tyre (e.g. stiff side walls will be noiser... ) but a large part of it is to do with the cars sound insulation and deadening. As the Jazz is built to a budget it lacks sound insulation, especially inside the wheel arches and bulkhead. If this is something that concerns you, you can have sound insulation retrofitted which will make a considerable difference but also adds weight to the car. I tried to do this myself in my old civic type-r and it definitely made a difference.

The fuel never goes near the inlet valves, so cannot really change anything.  As for the Jazz being built to a budget and lacking sound insulation the main 'budget' for vehicles is their weight and as you say sound deadening adds weight which is bad for MPG. With all the extra gizmos cars today are bigger and heavier than ever, this means getting better MPG is hard, and more money has to be spent on systems with ever diminishing effects..  Tyres are you best bet to reduce road noise,  but on some surfaces even the best tyres struggle to be quiet.
Title: Re: 1.5 Sport
Post by: Westy36 on May 16, 2021, 05:53:57 PM
We ran an Octavia VRS for 3 yrs, and that had Dunlop Sportmaxx 225/40-18. Mrs W didn't mind the ride, and in fairness it was her car, but it got on my nerves. Sports suspension and big wheels aren't really my thing, athough the performance was fun when the mood takes you. The car had to run on high octane fuel, which at one point was nearly £1.70 a litre!

The Jazz Sport has a fair amount of power, and the wheels don't look that big. Only a test drive will confirm. We all have different ideas of what is ok and what's not. If its only a little more firm and noisy, then probably worth that for the extra shove.
Title: Re: 1.5 Sport
Post by: TnTkr on May 18, 2021, 06:10:57 AM
I've had a 1.5 litre 130 hp Jazz Dynamic (sold as Sport in UK) for a year now. I like the performance, it's very lively from 3000 rpm to redline, but at the same time humble to cruise high gear at low speed. 8.7 seconds from 0 to 100 km/h is nice. I would call it at least warm hatch.

My biggest complaints besides the annoying nanny-state systems are sun reflection from dash to windscreen and uncomfortable seats and especially headrests forcing head too front. I know it's not safe, but I have my headrest turned around to allow more comfortable head position. But these are all valid to 1.3 litre models as well.

Regarding carbon buildup, people in US, where that same 1.5 litre 130 hp engine is the only option, there are credible opinions that the best and maybe the only way to avoid buildup is to use the performance regularly, i.e. accelerate often with full throttle and high rpm. Not any problem for me.

My typical fuel consumption per tankful is 5.5-6,2 l/100 km (43-38 mpg) depending on weather and usage. I do not try to drive economically.
Title: Re: 1.5 Sport
Post by: Westy36 on May 18, 2021, 10:44:12 AM
I've had a 1.5 litre 130 hp Jazz Dynamic (sold as Sport in UK) for a year now. I like the performance, it's very lively from 3000 rpm to redline, but at the same time humble to cruise high gear at low speed. 8.7 seconds from 0 to 100 km/h is nice. I would call it at least warm hatch.

My biggest complaints besides the annoying nanny-state systems are sun reflection from dash to windscreen and uncomfortable seats and especially headrests forcing head too front. I know it's not safe, but I have my headrest turned around to allow more comfortable head position. But these are all valid to 1.3 litre models as well.

Regarding carbon buildup, people in US, where that same 1.5 litre 130 hp engine is the only option, there are credible opinions that the best and maybe the only way to avoid buildup is to use the performance regularly, i.e. accelerate often with full throttle and high rpm. Not any problem for me.

My typical fuel consumption per tankful is 5.5-6,2 l/100 km (43-38 mpg) depending on weather and usage. I do not try to drive economically.
Once warm, I always give my cars a decent bootful of throttle. Not full, but a good press. I also take them to at least 4000 rpm. So on that basis, maybe more time at high revs, the carbon build up will be reduced. Interesting thanks.  :D Having had bikes for years, revs don't concern me at all.

Re turning your headrest the other way round,  whilst probably not the best for protection from whiplash, it will be 1000% better than cars that never had any headrest !!
Title: Re: 1.5 Sport
Post by: TnTkr on May 18, 2021, 12:07:53 PM
Re turning your headrest the other way round,  whilst probably not the best for protection from whiplash, it will be 1000% better than cars that never had any headrest !!

Sure, yes. I would like to modify the tilt system to get it more straight, but I didn't find the way to get into the mechanism.
Title: Re: 1.5 Sport
Post by: jazzaro on May 18, 2021, 01:55:08 PM
Sure, yes. I would like to modify the tilt system to get it more straight, but I didn't find the way to get into the mechanism.
This could help.

Title: Re: 1.5 Sport
Post by: TnTkr on May 18, 2021, 02:00:30 PM
Not really, because it's rather padded.
Title: Re: 1.5 Sport
Post by: springswood on May 19, 2021, 07:43:15 AM
Quote
5.5-6,2 l/100 km (43-38 mpg)

That's mpg US or 51 - 45 mpg UK so pretty good.
Title: Re: 1.5 Sport
Post by: TnTkr on May 20, 2021, 06:20:20 AM
Oh, I didn't know there are different numbers for UK and US, and such big difference!
Title: Re: 1.5 Sport
Post by: E27006 on May 20, 2021, 07:43:53 AM
Oh, I didn't know there are different numbers for UK and US, and such big difference!

We  have the long or imperial gallon in the UK,  the short gallon in the USA.

There is a significant difference in the two volumes.

10.00 imperial gallons =  12.00 US  gallons
Title: Re: 1.5 Sport
Post by: ColinB on May 20, 2021, 07:45:46 AM
Oh, I didn't know there are different numbers for UK and US, and such big difference!

1 US gallon = 0.832674 imperial gallon

(Don’t you just love that “imperial”? I suppose that’ll have to go soon ...)
Title: Re: 1.5 Sport
Post by: TnTkr on May 20, 2021, 08:07:25 AM
 :D

Anyways, I have had some tankfuls with higher fuel consumption i.e. lower mileage, but that was in January, when we had quite cold weather (below -20 C) and some amount of idling to prevent car getting cold. Something like 7.0 l/100 km (40 mpg UK).
Title: Re: 1.5 Sport
Post by: embee on May 20, 2021, 11:11:05 AM
1 US gallon = 0.832674 imperial gallon

Fascinating when you look back into the history. According to https://en.wikipedia.org/wiki/Fluid_ounce  etc the US gallon is based on the UK (English prior to UK) wine gallon in use in various forms (and sizes) from the 14th century and made legal under Queen Anne in 1706/7. The UK then discarded the wine gallon in favour of the imperial gallon in 1824.
The US gallon is defined as 231 cubic inches apparently, and their temperature for measurement of liquids is 60F (ah yes, Fahrenheit, water freezes at 32 and boils at 212, why not?) ........

The imperial gallon now seems to be defined as 4.54609 litres exactly, and a litre is defined as ..............

Simple really.  ;D
Title: Re: 1.5 Sport
Post by: TnTkr on May 20, 2021, 11:19:23 AM
So not everything is bigger in America  :D
Title: Re: 1.5 Sport
Post by: Downsizer on May 20, 2021, 03:11:30 PM
The imperial gallon now seems to be defined as 4.54609 litres exactly, and a litre is defined as ..............
...... 1/1000 of a cubic metre, and a metre is the distance travelled by light in a vacuum in 1/299,792,458 second.  As you say, easy really!
Title: Re: 1.5 Sport
Post by: plasma on May 20, 2021, 04:40:33 PM
So not everything is bigger in America  :D


!0/10.

Plasma.
Title: Re: 1.5 Sport
Post by: Westy36 on May 20, 2021, 04:43:43 PM
A wine gallon. Fascinating and sounding a bit like a challenge to me!!  :D Might need some help though.

Weird how we buy fuel in litres, but drive in miles and work out economy in MPG.

Tyre sizes are strange too, 175 mm x 65 mm x 15 inches.  Should be 175/65/381.

I only remember decimilised currency, the old system was plain bonkers!
Title: Re: 1.5 Sport
Post by: Derkie54 on May 20, 2021, 05:33:44 PM
And even though we've gone to the metric system you can still buy mint imperials  :)
Title: Re: 1.5 Sport
Post by: guest4871 on May 20, 2021, 06:15:19 PM
A wine gallon. Fascinating and sounding a bit like a challenge to me!!  :D Might need some help though.

Weird how we buy fuel in litres, but drive in miles and work out economy in MPG.

Tyre sizes are strange too, 175 mm x 65 mm x 15 inches.  Should be 175/65/381.

I only remember decimilised currency, the old system was plain bonkers!

IIRC

Rim measure in inches is from USA/ UK from before pneumatic tyres. 

Michelin in France introduced pneumatic tyres in millimetres.

The rest is history.........

Isn't the 65 in your example the ratio of wall height to tread width and not a measurement as such?
Title: Re: 1.5 Sport
Post by: embee on May 20, 2021, 09:11:49 PM
.....and a metre is the distance travelled by light in a vacuum in 1/299,792,458 second.  As you say, easy really!
... and a second is "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom" (at a temperature of 0 K)

It gets simpler by the moment
(and the definition of a moment is ..........)

A work colleague explained to me what a "bit" was. I imagined it was something to do with binary storage in computer memory. No.
 
"two foot eight and a bit"
All was clear.
Title: Re: 1.5 Sport
Post by: Jocko on May 20, 2021, 09:24:36 PM
My father-in-law was measuring a window so my wife could buy him curtains. He had a 3 ft joiners wooden rule. The window' width was 3 ft 21 inches.
Title: Re: 1.5 Sport
Post by: Kremmen on May 21, 2021, 04:28:32 AM
After all this time I still can't estimate in cm.

Show me anything and I can estimate it's length in feet and inches but I've no idea how many cm that would be.
Title: Re: 1.5 Sport
Post by: ColinB on May 21, 2021, 06:35:35 AM
After all this time I still can't estimate in cm.

Show me anything and I can estimate it's length in feet and inches but I've no idea how many cm that would be.

You’re not the only one:
https://en.m.wikipedia.org/wiki/Mars_Climate_Orbiter

“An investigation attributed the failure to a measurement mismatch between two software systems: metric units by NASA and non-metric (imperial or "English") units by spacecraft builder”
Title: Re: 1.5 Sport
Post by: nowster on May 21, 2021, 11:00:11 AM
A wine gallon. Fascinating and sounding a bit like a challenge to me!!  :D Might need some help though.

Weird how we buy fuel in litres, but drive in miles and work out economy in MPG.

Tyre sizes are strange too, 175 mm x 65 mm x 15 inches.  Should be 175/65/381.

I only remember decimalised currency, the old system was plain bonkers!

And newspaper headlines print cold weather temperatures in degrees Celsius and hot weather temperatures in degrees Fahrenheit.
Title: Re: 1.5 Sport
Post by: Westy36 on May 21, 2021, 04:27:50 PM
Rim measure in inches is from USA/ UK from before pneumatic tyres. 

Michelin in France introduced pneumatic tyres in millimetres.

The rest is history.........

Isn't the 65 in your example the ratio of wall height to tread width and not a measurement as such?
Is it? I genuinely thought it was mm height. Not going outside to measure my tyres just now mind.

According to this website, you're right! I've been buying car and motorcycle tyres for 30+yrs and didn't know that! Every day is a school day.

"The aspect ratio in % (the height of the sidewall divided by the tyre's width)"

Confusing system. I prefer my idea of MM height of sidewall. Makes more sense, and I've been thinking it for 30+yrs!  ;D ;D ;D

https://www.mytyres.co.uk/Identifying.html

And newspaper headlines print cold weather temperatures in degrees Celsius and hot weather temperatures in degrees Fahrenheit.

Yeah, I hadn't noticed that! Good spot. That'll be journalists and sensationalism for you.  :D
Title: Re: 1.5 Sport
Post by: JimSh on May 21, 2021, 05:44:15 PM


I only remember decimilised currency, the old system was plain bonkers!

12d=1shilling
20shillings=£1

Yep but not  any worse than what we still work with

Metric 
10mm=1cm
1000mm=1m             
100cm=1m
1000m=1km

Imperial
12"=1ft
3ft= 1yd
1760yd=1ml
And rods chains and furlongs fit somewhere in between

Metric
1000mg=1g
1000g=1kg
1000kg=1tonne

Imperial
16oz=1lb
14lb=1st
112lb=1cwt
20cwt=1ton

We should have converted completely decades ago.
I always thought the thou (thousandth of an inch) was a strange b*stard unit.
Title: Re: 1.5 Sport
Post by: guest4871 on May 21, 2021, 05:52:19 PM
I see they don't list Tread Wear Index:

https://www.tyreleader.co.uk/tyres-advices/utqg#:~:text=Treadwear%20%3A%20Tread%20wear%20index&text=The%20value%20of%20the%20index%20is%20included%20between%2060%20and%20620.&text=A%20tyre%20with%20an%20index,tyre%20with%20an%20index%20100.

Title: Re: 1.5 Sport
Post by: embee on May 22, 2021, 12:28:50 AM
Yep but not  any worse than what we still work with


Reminds me of the first proper job I had at the end of the 1970s. I was tasked with calculating the moment of inertia of a complex structure which rotated about an axis. Having come straight from university using almost exclusively metric I was instructed that the units should be imperial. As everyone knows (?!) the imperial unit of moment of inertia is the "slug. feet squared". A "slug" is approx 32.2 lbs mass (the mass which one pound force accelerates at one foot per second squared). Absolute nightmare.
Title: Re: 1.5 Sport
Post by: springswood on May 22, 2021, 07:45:48 AM
That's a new one on me, thanks.
Now I wonder what happens if you feed a slug to a perch, which is of course 5 1/2 yards.
Title: Re: 1.5 Sport
Post by: JimSh on May 22, 2021, 11:22:27 AM
That's a new one on me, thanks.
Now I wonder what happens if you feed a slug to a perch, which is of course 5 1/2 yards.
You could catch the perch with your rod or pole which strangely are all names for the same unit of length as is a lug (as opposed to a slug.)

In the episode of The Simpsons entitled A Star is Burns, Grampa Simpson said "My car gets forty rods to the hogshead, and that's the way I likes it!" That's about 1.2 litres per metre, 12 feet per imperial gallon or 10 feet per U.S. gallon.

https://simple.wikipedia.org/wiki/Rod_(unit)#:~:text=A%20rod%2C%20a%20perch%20%5B1%5D%20or%20a%20pole,The%20rod%20was%20the%20length%20of%20this%20stick.

https://www.reddit.com/r/theydidthemath/comments/1y38bs/calculation_of_abe_simpsons_gas_mileage_a_star_is/

Edit added link to Abe's mileage
Title: Re: 1.5 Sport
Post by: Basil on May 25, 2021, 09:38:59 AM
Going back to the Sport, I was a bit concerned with the possible carbon build up issues but most new cars now have direct injection so I've just bought one, 2019, 7k miles on the clock, in bright blue with satnav.

I took it for a test drive it was really nice, the performance was on a different level to my 1.2 mk2.
Title: Re: 1.5 Sport
Post by: JimSh on May 25, 2021, 12:30:45 PM
Sorry for the digresssion.
Hope you enjoy your new car.
Title: Re: 1.5 Sport
Post by: Westy36 on May 26, 2021, 08:41:23 AM
Going back to the Sport, I was a bit concerned with the possible carbon build up issues but most new cars now have direct injection so I've just bought one, 2019, 7k miles on the clock, in bright blue with satnav.

I took it for a test drive it was really nice, the performance was on a different level to my 1.2 mk2.
Nice one Basil. Hope you enjoy the new motor.  :D

Feel free to post some pics of your new pride and joy and give us an update on your experince.
Title: Re: 1.5 Sport
Post by: Basil on June 06, 2021, 08:37:39 AM
Picked up the car yesterday, well impressed so far, will post some pics later.
Title: Re: 1.5 Sport
Post by: TnTkr on June 07, 2021, 08:20:26 AM
Going back to the Sport, I was a bit concerned with the possible carbon build up issues but most new cars now have direct injection so I've just bought one, 2019, 7k miles on the clock, in bright blue with satnav.

I took it for a test drive it was really nice, the performance was on a different level to my 1.2 mk2.
Congratulations! I'm sure you are going to enjoy it.
Title: Re: 1.5 Sport
Post by: Basil on June 07, 2021, 10:11:07 AM
The car feels bigger inside and more comfortable than the Mk2 despite the low profile tyres, it also feels much more at home on the motorway. The engine is very flexible, it pulls from low revs in high gears and goes when you put your foot down, also well over 50mpg on a run yesterday.
Title: Re: 1.5 Sport
Post by: Westy36 on June 07, 2021, 10:30:44 AM
Nice car Basil, lovely colour. Enjoy.  8)

In my opinion, that is the best looking Jazz by a mile. I've yet to see one in the flesh, not many about.
Title: Re: 1.5 Sport
Post by: Hora on July 03, 2021, 04:53:21 PM
I'm collecting my new to me 2018 Sport this week. Can't wait. Its a CVT though so slower off the mark- will it be slower in mid gears too than the manual box?
Title: Re: 1.5 Sport
Post by: Hora on July 11, 2021, 09:58:17 AM
CVT gearbox - setting off there's a initial sluggishness/hesitance?

Could it be because the cars only done circa 3,000miles in the last year?
Title: Re: 1.5 Sport
Post by: madasafish on July 11, 2021, 01:11:43 PM
Select S and put foot hard down on accelerator - how to win a traffic lights GP - if alert you'll be away at least 2 seconds faster than a manual gearbox. And 20 minutes faster than some drivers'  :Preactions.
Title: Re: 1.5 Sport
Post by: Hora on July 12, 2021, 12:28:52 PM
I've found out you CAN map a 1.5 (non turbo).
Has anyone done this?
Title: Re: 1.5 Sport
Post by: Jon R on July 22, 2021, 11:59:05 AM
Hi Hora.
I've noticed all went quiet on the Jazz forum when you mentioned re-mapping or tuning.
Yes, it would be great to hear if anyone has ever had this done to a 1.5 non-turbo.
With such a potentially tunable engine, would be great to know that all of us Jazz owners are not all past it, and elderly, as the media seems to assume!
Just for the record, I'm 60, and also own over 10 motorcycles from 90cc to 1400cc, and not all Honda's!
Title: Re: 1.5 Sport
Post by: Hora on July 22, 2021, 12:18:26 PM
I've tried everywhere for experiences of the map online but even though its offered by numerous companies I.e. there must be a market. No one seemingly shouts about having done it.
Title: Re: 1.5 Sport
Post by: nowster on July 22, 2021, 02:40:27 PM
I've tried everywhere for experiences of the map online but even though its offered by numerous companies I.e. there must be a market. No one seemingly shouts about having done it.

Presumably it's more in demand in the US where the Honda Fit has a completely different image than over here.
Title: Re: 1.5 Sport
Post by: TnTkr on July 22, 2021, 08:36:48 PM
According to a local specialist who uses Quatum Tuning re-programming, there is possibility to get about 20 hp more, i.e. about 150 hp from the Jazz direct injected 1.5 engine when optimizing the map to use 98 oct fuel.
Title: Re: 1.5 Sport
Post by: Hora on July 22, 2021, 08:39:11 PM
According to a local specialist who uses Quatum Tuning re-programming, there is possibility to get about 20 hp more, i.e. about 150 hp from the Jazz direct injected 1.5 engine when optimizing the map to use 98 oct fuel.


Oh hello...
Title: Re: 1.5 Sport
Post by: TnTkr on July 23, 2021, 07:21:57 AM
I forgot to mention, that I haven't got it done to my car yet, but I'm seriously considering it. They can dyno the car before and after if I want to get actual numbers of the optimization.
Title: Re: 1.5 Sport
Post by: Jon R on July 23, 2021, 10:51:19 AM
Good luck with that TnTkr, will look forward to your report if you decide go ahead with the Quantum re-programming.  I've had to hold back on any tuning mods or suchlike at the moment, due to Honda warranty on my Jazz Sport 1.5. A garage very close to where I live offer a Quantum re-map for both 1.5, and 1.2 Jazz/Fit. My car is also a CVT because my dodgy left leg makes clutch operation difficult. Don't know if tuning or re-mapping will over stress the CVT, as manual gearboxes lend themselves better to successful outcomes.
I suppose it depends on driving styles, and how you apply any additional power. Would also ask if any Jazz owners have tried aftermarket exhausts such as HKS, Spoon, Mugen, and do they improve power, or just annoy with noise?
Title: Re: 1.5 Sport
Post by: TnTkr on July 23, 2021, 08:12:23 PM
I will defenitely let you know about the results if I proceed with re-mapping!
Title: Re: 1.5 Sport
Post by: SteveiD on December 05, 2021, 12:00:53 PM
Happy with mine. 40+ mpg in town over 50 rural. Engine no hot rod but quick enough for sensible driving. Sounds thrashy if pushed but goes if you do