Looking to split a room for the Pro and/or Nat's. Dates are 9/20 thru 9/28 at the Ramada Inn ($89 a night /2).

Dave

 

Around 37 psi. You'll probably want to play around to find the exact pressures for your setup and driving style. I don't think anybody is running really high (>45) or really low (<32).

donour

 

You're not staying at that funkidy old Senate hotel with the weird basement this year?

 

Hi Rich,

I am the one that has the Rick Jung/Arp Wing. I was co-driving with Mike Neary in STU on Sunday. Rick (SS RX7 r2) designed all the mounting bracket necessary and modified the ARP GT wing to meet STU requirements and everything fits great. We will show up at the test and tune at Ripken this Saturday to test the suspension settings, and will test the wing also after the suspension is sorted out.

I did not crank the wing up (two way adjustable) for yesterday's runs because I forgot my 5mm allen wrench. We have been fighting with understeer and steady state problems since the beginning of the year. We managed to correct the understeering problem but still have a lot of wobbling in steady state turns. I did not notice any increase in understeering with the wing, and I don't believe Mike either.

I didn't post a better time because I just didn't have the guts to go faster. There are a lot of speed sections and speed maintenance sections that I was just too passive on (chicken). Mike left a few 10th out there and ended up finish second, 2/100th behind Scott in a M3.

We are running RE01Rs 245/45/17 similar to Dave Mac. This is my 3rd set of RE01Rs and I torched the first two sets from understeering problems and just bad driving. We finally sorted out with 36F/32R and that seems to work very well. (At Summit I ran 5 PSI over on both front and rear, 37F/34F at both Main and Shennandoah without problems) The tires after 5 events are still "gummy", unlike the "hard muscle" feel of Dave Mac's tires. (Dave needs new tires for the Nats)

I will post the Wing test result next week if anyone is interested. I think young guys like me and Rick generally like the way the wing looks, (Rick and I are both in our 40s) older dudes usually can't take it.

 

Aha! I knew I couldn't be the only one. On a wide enough rim, I'm convinced they don't give much up to the 245/40...



d

EDIT: out of curiosity, what wheel size are you running? 17x9.5?

 

RE30's 17x9.0 +35mm. I think all of us are running either RE30 and 28's. Like what Davemac said before I didn't notice any difference either.

 

DK-
Those are the EXACT pressures that I am running on my Ebo.

 

Appreciate the suggestion... Does anyone have contact info beyond the site? http://zzyzxmotorsports.com/contact There's been no response from this contact form, and no "old school" phone number.

Thanks
Tim

 

17x9 CE28's 35mm offset.....for now. I'm thinking of some 17x10 forgelines for next year up front.

 

Steve's been pretty swamped with work lately. I'll let him know you are trying to get ahold of him when I see hom for lunch today. You can always e-mail me as well and I can forward it to him. jake@zzyzxmotorsports.com

 

A little bit off-topic, but I know I could get a quick answer here. Are turbo timers legal for STU (or any other solo class for that matter)? My car came with one from the dealer but I am not sure if it is really necessary.

Thanks for the help guys.

 

Legal, "Comfort and Convenience".

Dave

 

Thanks. I thought there might be an issue with O2 sensor manipulation and "delayed shut off" safety concerns.

 

We finally managed to get my Evo out. Power and boost response were down, but we were trying to concentrate on the suspension, tires and alignment.

Cusco Zero 2E set to 4 with 7k/5k springs
Bridgestone 245/45/17 RE-01Rs on BBS MR 17x8 wheels
Front
Camber: -3.5*
Toe: 0
Rear
Camber: -2.0*
Total Toe: 0.25*

The alignment was my first try at an aggressive alignment on the Evo. We've been running ~-3.5* front camber and 245/40/17 RE-01Rs on an M3 for awhile and it has produced an amazing amount of grip. We've run fairly low pressures on the M3 with good success so we started out at 33psi all around with the Evo.

It should have been fast; it wasn't. The tires were unshaved and brand new with only 150 miles on the clock. The car squealed everywhere and felt like no grip was present. Every run out was faster, but, coming from an M3, it was expected that we would adapt to the car. Trying to find more grip, we started dropping tire pressures and finally ended, frustrated, at 28psi front and 30 psi rear.

We checked tire temps in the front and rear of one side, just to confirm our suspicions.

Inner - middle - outer
Front
144 - 130 - 111
Rear
120 - 115 - 110

I'd imagine that the tire pressures will prove to be too low once the tires are gripping and actually rolling over. For now, the car isn't gripping enough TO roll the tires. My only hope is that the tires just need more scrubbing. I know people out there are competitive in the Evo but we were no faster coming from a relatively stock M3.

The other interesting thing we noted was the stark contrast between running my Evo RS and a bone-stock 06 STI. My co-driver matched his times in the Evo when running an unmodified 2006 STI during fun runs. He finished the timed runs in the Evo with a 62s run. For his first run out in the STI during the afternoon fun runs, he matched the 62 and figured he could run a 60s run fairly easily. I did manage to cut 1s off of my time during the fun runs, with a 60.5, so there was more time out there in the afternoon. Anyway, his comments when driving the Evo, time and time again, are always that it is really hard to drive where the STI and the M3 are very natural.

Another friend, and a very good driver, took the Evo out and did no better with a 61s run. I have no doubt he would be faster given another run or two, but he wasn't that far from my pace. Earlier this year, a good driver would have beaten me in my own car but I'm finally to the point where I am faster in my car compared to one of the faster drivers in our region in my car.

-Jon

 

From my experience, those tire pressures are waaaaayyy too low. Try putting them up to 37psi, that seems to be their sweet spot.