How wide tires affect overall performance

wheee!

Interesting... my 305 rear and front 275's seem to be perfect balance right now. My camber in the front is -1.6 and the rear is -1.2.... on the track it seems to be extremely nimble but no loss of 'balance'. I noticed neither understeer or oversteer throughout the roadcourse.

__________________

Chuck33079

You maintained the stock stagger. 245 to 275= 30mm, 275 to 305=30mm.

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

DEpointfive0

I'm gonna not go stock stagger and get 245 and 305. I'll take the risk of understeer

245's are on clearance, and 305's are on clearance as well... Lol

__________________
Do YOU want to know what/where I got my username from?

FortuneLSX-TT

A 60mm stagger...ouch. You won't be oversteering, you'll have serious understeer.

Your fronts will have a lot less grip compared to the rear. Meaning if you go into a corner hot, your rears will handle it and not step out. Your fronts won't have enough traction to change direction and instead of turning, they will go straighter than you'd like. With a RWD, you can always give it a bit of power to reduce the traction to the rear and try and get some power induced oversteer though.

__________________
GTM TT, OS Giken GT clutch, Greddy Ti-C, Z1 test pipes, Hawk HP+ pads, steel braided brake lines, ZSpeed CSC, 34r oil cooler, CSF radiator, HKS EVC 6 boost controller, Whiteline sways, Swift Springs, Kinetix adj camber package, Osiris UPrev tune

Chuck33079

Or set the rear sway to full stiff to at least help out some.

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

DEpointfive0

My bad! Meant under steer! Lol

My current bars aren't adjustable, but if I find it to be too much, I'll spring for an adjustable or stiffer rear bar

__________________
Do YOU want to know what/where I got my username from?

FortuneLSX-TT

I'm new to sway bar settings myself. So could you explain how stiffening the rear sway bar will help with too much grip in the rear already? I was under the impression that stiffer = kept the tires planted more = more grip.

Secondly, wouldn't he want to work on increasing the front grip instead of reducing the rear grip? Which would negate any benefit the 305's would of given him and simply reduce overall traction?

__________________
GTM TT, OS Giken GT clutch, Greddy Ti-C, Z1 test pipes, Hawk HP+ pads, steel braided brake lines, ZSpeed CSC, 34r oil cooler, CSF radiator, HKS EVC 6 boost controller, Whiteline sways, Swift Springs, Kinetix adj camber package, Osiris UPrev tune

DEpointfive0

You get different data/input from different sources.


The GENERAL rule is:
Increase front bar stiffness, increase understeer.
Increase rear bar stiffness, increase oversteer.
I think the thinking is weight transfer/balance in turns?

The track guys, IIRC, say that you need more front bar for better traction/oversteer though.


All I know is that it's a balancing act and too much/too little of either bar plays different roles depending on what kind of driving you're going to be doing.



My input, for me, 99.9% of my driving is very aggressive street driving, so I got the Nismo S-Tune bars, because I assume they know what they're doing a bit, and they are making a stiffness setting for the masses, which I fall into.

__________________
Do YOU want to know what/where I got my username from?