Jump to content
SAU Community

Recommended Posts

I've got a set of coilovers and the ride is really stiff with the damper setting on the softest.

The front isn't overly stiff (the weight of the motor helps a little) but the rear skips over bumps. Gets annoying on crappy roads.

The rears are 17x9 inch with 235/45 rubber on. I checked this forum and saw this rim is ideal with 255 wide rubber. Will wider tyres give more flex and soften the ride up? Or is a 50-55 profile necessary?

Cheers

Link to comment
https://www.sau.com.au/forums/topic/206313-stiff-ride/
Share on other sites

Your spring rates are probably the main cause of the stiff ride...What make are the coilovers?

You do not change tyre profile to soften your ride...it will only throw your overall diameter and speedo out...unless you plan on going back to 16s or 15s with a 50 or 55 profile.

Link to comment
https://www.sau.com.au/forums/topic/206313-stiff-ride/#findComment-3650679
Share on other sites

Your spring rates are probably the main cause of the stiff ride...What make are the coilovers?

You do not change tyre profile to soften your ride...it will only throw your overall diameter and speedo out...unless you plan on going back to 16s or 15s with a 50 or 55 profile.

Thanks for the speedo warning :(

They're Nismo, and i'm 95% sure are S-tune.

So keep 45 profile OK. If i went up to 18's i'd go 40 profile yeah?

Will getting a wider tyre help the ride at all, or just grip? As they sit, the 235's are too small and aren't flush with the rim.

Can i change spring rates and to avoid changing coilovers? My mate reckons these are drift spec coils (came on the car when imported)

Also: when i push on the car (i.e. on the boot) there is sh!t all flex from the suspension and the tyre.

Edited by R338OY
Link to comment
https://www.sau.com.au/forums/topic/206313-stiff-ride/#findComment-3650686
Share on other sites

This thread shows you how to measure your springs so that I can work out the spring rates for you

http://www.skylinesaustralia.com/forums/Sp...Are-t79157.html

Once we know what the spring rates are then we can make soem suggestions.

The next thing for you to check is how low is the ride height. Centre of wheel to guard it should be no lower than 350 mm front and 340 mm rear. Ride comfort and handling suffer if it is any lower than that.

Cheers

Gary

Link to comment
https://www.sau.com.au/forums/topic/206313-stiff-ride/#findComment-3653086
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I appreciate the detailed explanation, think I understand now. I spent the better part of last night reading what I could about shuffle and potential solutions. I had replaced the OEM twin turbo pipe with an alternate Y pipe that is separated further away from the turbo. The current one is from HKS and I had a previous pipe that was separated even further away, both have shuffle. I had heard that a divider can be welded in to the OEM pipe to remove turbulence, and figure that aftermarket pipes that are more separated would achieve the same thing. From what I read, most people with -10 turbos get shuffle due to their size, though it's a bit less common with -5s on a standard RB26. I think Nismoid mentioned somewhere it's because OEM recirculation piping is common in Australia with -5 cars. It seems that the recommendation tends to vary between a few options, which I've ordered in what I think is most feasible for me:  1. Retune the MAP or boost controller to try to eliminate shuffle 2. Install OEM recirculation piping 3. Something called a 'balance pipe' welded onto the exhaust manifolds. I don't know if kits for this are available, seems like pure fabrication work 4. simply go single turbo My current layout is as follows: Garrett 2860 -5s HKS Racing Suction intake MAF delete pipes HKS racing chamber intake piping hard intercooler piping,  ARC intercooler HKS SSQV BOV and pipe Haltech 2500 elite ECU and boost solenoid/controller HPI dump pipes OEM exhaust manifolds HKS VCAM step 1 and supporting head modifications Built 2.6 bottom end All OEM recirculation piping was removed, relevant areas sealed off I'll keep an eye out for any alternative solutions but can get started with this.  Only other question is, does shuffle harm the turbo (or anything else)? It seems like some people say your turbo shafts will explode because of the opposing forces after a while and others say they just live with it and adjust their pedal foot accordingly. 
    • That worked out PERFECTLY! Thank you big time to JJ. He was able to swap me his stock diff. He drove all the way to me as well. Killer! Removal & install was pretty straightforward. The diff itself is HEAVY. So that’s a 2 man job.  Man does the car drive nice now! Couldn’t have worked out any better 👌
    • I'm interested,do you still have it?
×
×
  • Create New...