Quantitative report of BRZ/GT86 suspension differences

[Ryeong86]

Originally Posted by itzo

Best way to compare is if you had the same driver in both cars. Other that that I do not think the setup is making you slower.

For me it took some adjustment to the size of the car and i kept running wide especially in the slaloms (bad habit from the old car).

How do you like the Koni's. I was looking at those but still doing my research I'll be happy to get some feedback from you.

I like them a lot. The install did take some time since the fronts are inserts and you have to use the stock mounts. A lot of cutting and drilling . I am finally getting used to the tires gripping instead of sliding out of control with the primacy's. The koni's does drop your stock high about 1/2 inch. Overall I like the availability to customize my shocks depending on the course. Got 8th fastest time on my first event and then fell to 25th spot from being over aggressive but I still won C-Stock both events.

[celica73]

Originally Posted by stevesnj

Why not just put FR-S/GT86 springs on the rear of the BRZ and have the ultimate car? :P

I'm thinking of doing just that. I've got the FRS rear springs sitting in the garage right next to the BRZ.

I've also added a bigger front bar and more front camber, so it's not really stock vs stock anymore.

[Sport-Tech]

Originally Posted by DarkSunrise

Interesting. I did some searching, but this is the only post I could find (which only talks about front spring rates).

http://www.ft86club.com/forums/showp...0&postcount=75

Is that the post you're talking about?

Yes that is the one. See WoW's post in that thread - he was going to double check the numbers with his contacts but given the evidence presented in that thread it looks like a done deal on the front rates. Back rate differences between FR-S ad GT86 still up in the air I think...

Kind of surprising that in a forum with so many hard-core car nerds this still is not cleared up a year after release.

[Lateapex]

My BRZ is stock other than a set of 225/45 Continental Extremecontacts on the stock wheels.

Two other 86's were completely stock including wheels/tyres.

Over several runs of a ~55sec Khana course my car averaged around 2 seconds faster than both 86's and was 3rd fastest of 15 cars....

[dori.]

Originally Posted by Lateapex

My BRZ is stock other than a set of 225/45 Continental Extremecontacts on the stock wheels.

Two other 86's were completely stock including wheels/tyres.

Over several runs of a ~55sec Khana course my car averaged around 2 seconds faster than both 86's and was 3rd fastest of 15 cars....

well no shit

[DarkSunrise]

Originally Posted by Sport-Tech

Yes that is the one. See WoW's post in that thread - he was going to double check the numbers with his contacts but given the evidence presented in that thread it looks like a done deal on the front rates. Back rate differences between FR-S ad GT86 still up in the air I think...

Kind of surprising that in a forum with so many hard-core car nerds this still is not cleared up a year after release.

Yeah I don't know where WoW got his spring rate information for the GT86. The FR-S spring rates are correct, as confirmed by Eibach when they tested a stock car. And the GT86 front spring rates are correct, as confirmed by the Toyota product notes. Now all we need is confirmation on the GT86 rear spring rates, although I haven't seen any information that contradicts the listed values either.

Originally Posted by Lateapex

My BRZ is stock other than a set of 225/45 Continental Extremecontacts on the stock wheels.

Two other 86's were completely stock including wheels/tyres.

Over several runs of a ~55sec Khana course my car averaged around 2 seconds faster than both 86's and was 3rd fastest of 15 cars....

Not too surprising that you were faster on max performance summer tires. The stock tires on these cars are awful.

[TouchMyHonda]

In for later read!