No he has the GT2 wing and nose from what i have seen in the past

 

Yes the disease we have requires us to ask what do the parts and installation cost to do this?

 

I understand what you are saying. My set up is over a year old and I'm really looking for any possible improvements. Maybe when you are done with your experimenting we can discuss any possible improvements to my car.

 

But, but....I just started to like my PSS9's?? I just dialed in to 4 front and 3 rear!!!! Let me be happy for 2-3 days!!

Am I now thrust to the bottom of suspension Hell?

Ok. I feel better. How much for the parts and how do I get it done?

 

Darren, you're right. I thought it was the bolt on GT2 style Strosek rear wing. I can see now that it's the GT2 factory wing.

Dave, no chance of that happening as long as you're on this board.

Cary, looking forward to your report.

 

Cary:

OK, I'll try to be patient.

 

I will chime in here with a quick outline of parts:

1) Wheels 10 x 18 front and 12 x 18 rear Fikse Profil 10's with 275 front and 315 rear PS2's.

2) It is has GT-2 front and rear aero package.

3) 450 lb. front springs (900 lb. rear).

4) GT-3 front and rear bars

5) A fair number of bits from ERP...steel bushings to replace rubber donuts in control arms, adjustable upper suspension links, etc.

6) Moton CS shocks and struts.

7) GT-3 front control arms with mono-ball connections

8) RSR front crossmember and rear carriers

9) No rubber between the rear carriers and body of car.

I think this is a pretty complete parts list. As for the cost, it's hard to recall as I have bought them over the last year in stages...trying to dial out the understeer that ruins these car's handling when accelerating out of fast sweepers especially. I think the alignment that Cary did on the car was a very important part of the equation as well of course.

 

John, with the RUF 550 package along with all this suspension work, your car is an awsome weapon for the track.

 

Thanks, I will be testing that myself this summer

...however my real goal was to make it an awesome weapon for mountain roads.

 

John,

We're using Fikse FM 10's up front and 12.5's in the rear. The profile........ is that a one piece wheel?

We're using steel monoballs/bushings throughout. Everything else sounds the same with the exception of the shocks.

Yes, the set up, plays a very big part. I have found that it has to be dialed in for any specific track or just how you want to drive it on the street.

Anyway, from what has been described I know your car will feel like it is on rails.

 

No Chad...the Profil 10 is just a more recent design from Fikse that is very similar to your FM 10's.

I agree on the personal choice aspect of setup (and certainly dialing to specific tracks in that world). I like a car that has a little more oversteer than many would choose.

 

John's car also has the RSR front cross member which raises the roll center and modified rear RSR carrier supports... I think that really helps when you have the ride heights most of these cars are using... If you were to just measure the supports to the ground, Johns car it won't reflect exactly whats going on because they have been moved up higher into the chassis. This is where a lot of the numbers don't make since when measuring from car to car. These units on a GT2 are in a different place from a stock turbo so if you measure from the sub frame of a GT2 and a TT then measure from the wheel opening to the ground they won't be the same.... On John's car those same numbers would be different again. When doing John's car I wasn't concerned with where the frame was to the ground but rather the roll centers and how the the roll couple correlated to the Center of gravity on his car at it's weight and weight distribution. I know it sounds like a bunch of babble but there are some sweet spots on these cars and they do vari depending on a lot of things. The exact set up on Johns car wouldn't necessarily be the sweet spot on a lighter car or a car putting down different HP. I think his set up is much more the right direction and I still feel there is more tweaking that can always be done and then as John says, he likes a bit more oversteer than most which is fine if you have the driving experience he has... for others I might stay without as much oversteer ... but the fun thing with John's car is this... remember that old video of the Ruf Yellow bird on the track in Germany doing those oversteer burn out exits off 70 mph turns?? well you if you want, it's easy to do that with Johns car if you over cook it just a bit with the psm off. The difference being, it feels like all four wheels are lit!! Oh btw... again... sorry about your brand new tires John .... but it was fun... Honestly you can throw that car at a turn.. think you know you're going off the track and still save like you never missed a beat... I didn't think a turbo would work like that... but I was wrong...

 

John-

This is all great to hear. Congrats.

Quick question. Did you eliminate the tender spring in the rear or did you keep it?

 

Hi Mike, The Tenders are still in the front and rear for sure.... In this case we even left the same rate that were there before.

 

Cary,

Thanks for "chiming in" at an engineering level that I cannot!!

What all should know is that not only did Cary take on my car (and I do not really think he had the time to take it on), but he was patient enough to explain some of the more advanced suspension concepts to me. I came up in formula car racing circles...and frankly really did not understand roll center, etc. as the cars I raced tended to have that sort of thing already dialed in (not that I am by any means an expert in it now). Cary took the time to chat with me on the phone for a number of hours to learn how I wanted the car to drive and also to help further my understanding of more advanced suspension issues. I was confident telling him my perceptions on the car's handling and what I wanted, but unable to give him any real feedback as to the more esoteric stuff. So many people that function at a level much lower on the suspension guru foodchain than Cary would have just done what they felt was the right thing to do without taking this time to learn my history and desires and make sure that the end result matched my specific desires. Again...thanks Cary.