That's exactly the case, that set was a one off. See this thread:

https://www.s2ki.com/forums/showthread.php?...?threadid=24142

 

Yeah, I just asked Greg and he said that's the only set and it's on Nick's car.

 

BBSpoon, I tend to think (and I am by no means an expert here) that Amuse has opted to go with 245 all around for one reason. BETTER GRIP. No the reason they can do so, and the reason others have suggested to still stagger, is due to the suspension setup. John, for ConversionTechniques, mentioned to me that all S2000 comes incorrectly setup out of the factory. He said that the factory tail suspension geometry is such that it will snap induce oversteer due to toe in (or out, I can't remember) when unweighting the rears (in other words when braking, or worse yet when trail braking). He recommended to redue the alignment to remove this negative toe effect and then run with 245 all around.

I like the way he thinks, until some one can positively disprove it.

J

 

Hi jjanicke-

I personally think that solution is not the way to go.

I think the S2000 comes with bumpsteer problems on both the front and rear ends. There have been threads in the Tech and Talk forums that discuss that. The correct way to minimise the bumpsteer problem is to adjust the suspension linkage through custom fabrication and then proper realignment.

I don't agree with increasing front end grip though through wider tires. It's the back end that snaps out if provoked, not the front.

Increasing the front end's limit will make the back end looseness seem even more apparent. Think about it- if the front end is even more planted, it has higher limits. The rear doesn't (a normal 245 sized tire is about the same real world width as our OEM W rated S-02), so the rear will continue to act the way it always has. What you'll end up with is a car that will always have enough front end grip, but never enough rear end grip- grip profiles that are even more front end biased than from the factory.

 

I have driven a few S2000's to find that the S2000 in factory tune and tire pressures understeer! Maybe I am just so used to the NSX handling. But I would not mind 3-5% more grip in front. In any case, my main point is that I don't think we can generalize on what is ideal - to each his/her own.

 

jjanicke,

I am not an expert either, but removing the rear toe-in and increasing the front tire width spells severe oversteer to me. The stock alignment settings of the S2000 requires a toe-in of a .25 inch. Toe-in reduces oversteer and imparts straight-line stability. As mentioned by other posters weight distribution is only but a part of the equation. Maybe you misunderstood your guy's recommendations.

There is tons of information on suspension setup on this board. I would recommend you do a search. Information posted by regular posters are from people who have first hand experience of the S2000.

 

thanks guys. Will do.

J