Post by: guest5247 on March 05, 2016, 11:54:38 AM
Post by: VicW on March 05, 2016, 03:27:39 PM
From experience on other cars modifications to the air intake/mixture system have to be accompanied by improvements to the exhaust system so that they both flow more freely.
The Jazz air filter box has a sensor on it, probably the intake air temperature sensor, which is a part of the engine ECU so is essential so that makes changes to the intake system difficult. You can change the air filter for a, possibly, more efficient one but that will not do much.
Is there a more efficient exhaust system available which actually works better and doesn't just result in a more noisy exhaust note?
There is possibly a modified engine ECU chip/software available.
Changes to the camshafts are complicated by the variable valve timing system.
Unfortunately your insurance company may not look too kindly on performance improvements without expensive increases to your premium.
The 1.8 Civic goes very well !!
Vic.
Post by: guest1372 on March 05, 2016, 04:13:52 PM
--
TG
Post by: guest5247 on March 05, 2016, 09:53:20 PM
That is the ONE item that always get asked , any engine mods.
In that case ill leave well alone , I thought of re mapping but no.
Tbh...the vtec engine goes ok , designed for high revving.
It means my mpg averages about 42...not great but it'll have to do.
I'm assured by Honda the engine will take the revving :D
I like....power ;D but i also like the design and versatility of the jazz.
Post by: guest5251 on March 05, 2016, 10:17:19 PM
I like....power ;D
if power is of some importance to you why did you buy a jazz
Post by: harry22673 on March 05, 2016, 11:41:19 PM
He's also all about that design and versatilityI like....power ;D
if power is of some importance to you why did you buy a jazz
Post by: guest5251 on March 06, 2016, 12:37:22 AM
so you can stand a tall item behind the front seats yes thats a clever piece of design
besides this i cannot see how the jazz is any different to another car,split folding rear seats
a generous boot space and seats 5.i may be wrong please tell me if i am.
Post by: culzean on March 06, 2016, 07:44:09 AM
100 ponies from a 1.3litre isn't too shady already, but if you want to lose your licence in next to no time get a Civic type R LOL
When I want to go a bit faster I get on my motorbike (but not when it is raining please).
Post by: Downsizer on March 06, 2016, 09:56:55 AM
the only major difference between the jazz and other cars is the way in which the rear seat foldsThe main advantage for me of the Jazz rear seat folding method is the flat load area that results. This gives considerably more load space than any other car of comparable length. This has proved invaluable in carting rubbish to the tip, moving furniture etc etc. I chose the Jazz rather then a Golf for this reason.
so you can stand a tall item behind the front seats
Post by: guest5251 on March 06, 2016, 11:34:57 AM
but it also had a variable height boot floor aswell so when you needed the extra height
for suitcases to stand up you could lower the floor by approx 5"
Post by: bill ericay on March 06, 2016, 01:55:50 PM
Quote
the only major difference between the jazz and other cars is the way in which the rear seat folds
so you can stand a tall item behind the front seats yes thats a clever piece of design
besides this i cannot see how the jazz is any different to another car,split folding rear seats
a generous boot space and seats 5.i may be wrong please tell me if i am.
There you have it. A Fiesta sized car which some people compare to a Mercedes A-class.
Just shows how good the Jazz is !
Post by: culzean on March 06, 2016, 03:39:15 PM
Quotethe only major difference between the jazz and other cars is the way in which the rear seat folds
so you can stand a tall item behind the front seats yes thats a clever piece of design
besides this i cannot see how the jazz is any different to another car,split folding rear seats
a generous boot space and seats 5.i may be wrong please tell me if i am.
There you have it. A Fiesta sized car which some people compare to a Mercedes A-class.
Just shows how good the Jazz is !
+10 - I have lost count of how many people thought the Jazz was a small car until I showed them the amount of usable room inside, as you say people compare its interior to larger cars but forget how small a turning circle it has (especially useful on Britains ever-shrinking car parks - about 3" either side the car the white lines are now, they used to be more generous).
Post by: guest5247 on March 06, 2016, 06:13:37 PM
Purely in design, loads of glass and tons of room.
I'm getting used to that revy engine.
The design outdoes the performance.
Post by: peteo48 on March 06, 2016, 10:50:03 PM
Where I do find it limited is in some motorway work and this might chime with Culzean's point about diesels. I drove turbo diesels from 2003 until 2011 and I got used to the torque and the ability of a diesel to pull well at low revs. I find my driving style on the little motorway driving I do now hasn't compensated for this and I find the car unwilling at times to get to a decent cruising speed.
You need to sometimes "retune" yourself and get used to taking the revs above 3,000. If you follow the "Eco" driving recommendations of changing up at 2500 revs the ability of the car on the motorway can feel quite limited. The engine will rev happily at well above these figures but it is a different style of driving. The diesels can spoil you for motorway driving and, yes, make you a bit lazy in terms of pushing the car a bit harder.
Post by: madasafish on March 07, 2016, 11:10:28 AM
Quotethe only major difference between the jazz and other cars is the way in which the rear seat folds
so you can stand a tall item behind the front seats yes thats a clever piece of design
besides this i cannot see how the jazz is any different to another car,split folding rear seats
a generous boot space and seats 5.i may be wrong please tell me if i am.
There you have it. A Fiesta sized car which some people compare to a Mercedes A-class.
Just shows how good the Jazz is !
+10 - I have lost count of how many people thought the Jazz was a small car until I showed them the amount of usable room inside, as you say people compare its interior to larger cars but forget how small a turning circle it has (especially useful on Britains ever-shrinking car parks - about 3" either side the car the white lines are now, they used to be more generous).
Four beehives with bees planned for tomorrow's load... 8)
Post by: guest5247 on March 08, 2016, 07:04:39 PM
The one thing i miss, my own fault though is 4wd.
The ability to put my foot down with no wheel spin.
The torque and low down turbo coupled with 4wd meant my old Rav4 just went !
I need to push the jazz to go sometimes with a hint of wheel spin , but i don't miss the worry of DMF's and turbos.
I needed an almost new , reliable, cheaper and affordable and practical vehicle for the near future.
The jazz simply ticked the boxes.
Post by: DAN@ADRIAN FLUX on March 09, 2016, 09:21:14 PM
If anyone ever needs any help with insurance at all for modified cars then please feel free to drop me a line. I'd be only too pleased to try and help.
Regards,
Dan.
Post by: applicationcen on March 10, 2016, 04:17:35 PM
That might give a noticeable 5% power upgrade and is not daft money - perhaps more at the higher revs that Hondas thrive on.
After that it gets like a stereo upgrade - expensive and questionable.
Post by: carlnike on March 10, 2016, 05:31:09 PM
Post by: guest5895 on March 11, 2016, 02:07:31 PM
The standard maps from the manufacturer are so limited by the range of operating conditions and legislations in all the countries they are sold in that a decent mapper can usually tweak a map to get the best out of it within the specific environmental ranges of its location. Having said that; normally you wont get much from a remap on a naturally aspirated engine but due to the VTEC system it should be possible to tweak the valve timings and injection system more that most other engines.
As for insurance; a stage one remap can be done on a standard engine with no visible modifications so technically how would an insurer know? Im not saying I would do this or that I condone it (I own a modified car and all mods are declared).
Post by: carlnike on March 11, 2016, 04:16:38 PM
Post by: culzean on March 11, 2016, 04:27:19 PM
When I put the group n map off flashpro there was no extra charges from the insurance, although the remap transformed how the car drove even though there was no peak gain with the group n map
was there any gain in MPG or do they just bring VTEC point lower down the rev band ?
Post by: carlnike on March 11, 2016, 04:29:27 PM
Post by: guest5247 on March 18, 2016, 08:30:18 AM
How easy is it , what is it , etc please?
I may possibly do that air filter upgrade...just because its so easy :)
Post by: carlnike on March 19, 2016, 07:27:15 AM
So.....I'm intrigued, this flashpro thing please.are you fitting it to your Jazz or an fn2
How easy is it , what is it , etc please?
I may possibly do that air filter upgrade...just because its so easy :)
Post by: guest5251 on March 20, 2016, 10:56:31 AM
including VAT,you could have a remap done for a lot less than that.
http://www.cplracing.co.uk/products.php?productid=260 (http://www.cplracing.co.uk/products.php?productid=260)
Post by: carlnike on March 20, 2016, 06:10:43 PM
i haven't found a flashpro for a jazz but i have for a FN2 and its £499not on an fn2 you can't as you need the flash pro or hondata dealer flashpro to map the fn2
including VAT,you could have a remap done for a lot less than that.
http://www.cplracing.co.uk/products.php?productid=260 (http://www.cplracing.co.uk/products.php?productid=260)
Post by: peteo48 on March 21, 2016, 10:27:36 AM
Post by: culzean on March 21, 2016, 11:12:39 AM
Without wishing to re-ignite an old debate about the benefits or otherwise of premium fuel offerings like V Power and Tesco Momentum, is there any evidence that the knock sensor on the Jazz will advance the timing a little and give you a small increase in bhp if you use premium fuels? By evidence I mean measurable as opposed to anecdotal.
look at if from other end.
ECU has to retard ignition to stop knocking (to fire the spark later in the compression stroke - it is the only way to do it), and when it does some of the power in the fuel is lost. running on 95RON If you select a highish gear (3 or 4) on a hill and floor the accelerator and you can hear a tinkling / tapping sound that means the engine is knocking and ECU has done all it can to reduce 'knocking' to a tinkle ( if knocking is allowed to carry on it can destroy the engine because knocking is the sound you get when explosion in cylinder is happening too early in the stroke because compression is detonating the charge before spark has a chance to, and actually trying to push the piston back down the way it just came up without going past TDC ) - now try the same experiment when you have filled up with higher octane, chances are the sound will be absent - that is all the evidence I need to know that engine is reacting to octane rating - and that if you engine knocks you are losing power.
If your car engine has knock sensors (they have been around for ever) the ECU has to have to have the facility to advance and retard ignition as this is the only way to control knocking - ECU will constantly listen to knock sensors and keep ignition as advanced as it can to ensure you get the most 'bang for your buck' - which will give smoothness, higher MPG and generally make engine more responsive right down the rev range.
Post by: carlnike on March 21, 2016, 04:37:04 PM