Engine Response

[owned]

Hey all,

Just curious on a little issue. I'm looking to get more response out of my rb25, i've been playing around with the idea of putting in a light weight flywheel. I've heard that you can get some pretty good results from it but i'm still in need of a bit of convincing. Someone with experience with this drive train modification please enlighten this :newbie:

Thanks

[ferni]

I don't have any expereince with it, but i'm planning to put a light weight flywheel in when i do my clutch next, it should give it that little bit more response/rev a little quicker...

anything you can do to lighten up the drivetrain has got to be good for responsivness

[benm]

A $155 Ex Cam Gear will give you better response. Check out my small review: here

[Demon Dave]

a lightened flywheel will help improve pick up response, but be aware that it will also cause the revs to drop more during gear changes...

[pstanbis]

a lightened flywheel will help improve pick up response, but be aware that it will also cause the revs to drop more during gear changes...

Dave has a good point here - if it'll rev faster, it'll DE-rev faster too... i guess it depends on how you want to drive it. IMHO, i would have thought that for dragging, maintaining revs would have been more important than quick throottle response ? don't quote me on that though...

[Steve]

Lightened flywheel, lightened wheels, lightened tail shaft, lightened pulleys are all good.

But you can also lighten your car - rip up the carpet and remove all the sound deadening, remove the boot trim and the spare wheel, remove the rear seats.

Not only will you increase responsiveness, as the car gets lighter, it brakes and corners better too. If you can remove 70-80kg - that have as much difference as between when you have a passenger in the car and when you drive alone - every bit helps.

If you have management, get it tuned with AF ratios around 11:1 and add more timing - this too will increase responsiveness. Its how one of Signal's D1 drivers suggested I should tune my car to increase responsiveness. He also suggested that running a base fuel pressure of 3kg (instead of stock 2.5) would help, with the right tune, to increase response further.

[Steve]

Oh, and Rev210 fitted a lightened flywheel and found no detrimental effects with it, only positive results. FYI D1 Garage have a second hand toda for sale at the moment too.

[owned]

mmm thanks all.. has given me a little food for thought.... more comments please:D

yeh the flywheel and a light alloy pully system should be good... what i want to do with the car is just make it a little more responsive....... not jack the boost up and make it go nuts.... just enhance whats already there. Sorta like trying to play with the car in a little different manner.

[lwells]

If your interested in response, check out this thread:

http://www.skylinesaustralia.com/forums/sh...=mines+response

LW.

[meshmesh]

Iwells... you beat me to it. I was going to suggest the same thread. We raised a similar debate about this issue & SydneyKid raised some very informative points. Well worth the long read.

[lwells]

Yeah, its a very interesting read.

LW.

PS. its "L"wells