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Old 05-06-2004, 05:08 PM   #1
V8VENOM
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Default Video footage of my STI at Thunderhill CA

Got my video up (finally):

http://www.gofastpilots.com/thunderh...d_2nd_2004.htm

my new site is www.gofastpilots.com -- transplanted my old site and will be updating the site for the STI stuff.

These are full 20 minute sessions compressed to 384KB (so about 30-40MB file size). I'll get single hot laps up when I get more time along with site face lift.

Best lap of the weekend for me was 2:03.692 and I won my NASA TTB class both days.

Rob.
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Old 05-06-2004, 05:14 PM   #2
trojan9x
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Didn't think it was good to run two different tire sizes front/rear
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Old 05-06-2004, 05:31 PM   #3
afpdl
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if the rolling diameter is the same it shouldnt matter.

So how do you like the car with some camber and springs with some decent rates up under it?
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Old 05-06-2004, 05:55 PM   #4
Midnight_Gold
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Does anyone round here have footage of Roebling Road in Savannah? I'd love to watch it.


- Miranda
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Old 05-06-2004, 06:13 PM   #5
V8VENOM
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Running two different tires is typically not a good thing, but the tire place at the track had no Hoosier R3S04 replacements so I had to go with Proxy RA1's and didn't feel like popping for a 4 tires as my 2 rear Hoosiers still had some life in them.

It certainly did get rid of my push have Hoosiers up front Toyo in the rear

I doubt I'll run Hoosiers again as they just don't last with my very pushy STI (the fronts were new Hoosiers and last 1 day - 80 minutes). The Proxy RA1 is about 0.7 - 1.0 Second slower but lasts about 10 times longer.

Spring rates were good, 450# is about right for 3370 lbs of street car & drive on Toyo's, I'd up the rate a tad for Hoosiers. Now, how to get rid of the push...

My toe settings front/rear were not set so I have no idea what they were but probably not good for what I was doing.
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Old 05-06-2004, 07:15 PM   #6
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Are you using the stock STi struts under the GC's? I'm interested to hear your opinions on that suspension setup. I'm thinking of having Nate do something similar on my STi. Did you get the over the strut tower camber plates or the ones that go under?

ps: I'm a friend of Dan's.
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Old 05-06-2004, 07:47 PM   #7
V8VENOM
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Yes stock STI struts, Ground Control caster/camber plates mount under. I will burn these struts out before I swap in real coilovers -- with the 450 springs the valving is not right and I need to adjust rebound which I can't do with stock struts. I can't run this setup as low as I would like -- in fact running too low is definitely NOT good with these struts.

I need to contact Gary S. off line about his DMS setup.

I did bend a Ground Control plate already with just one off (T15) -- and a rim (nothing major) -- it was a pretty hard hit but I've hit hard before without issues in other cars.

Nate had a hard time making the Ground Control plates work/fit -- I realize Nate does a lot of business with GC but he may think twice about doing their "STI" plates again until they release a kit that really fits.

I'm going to team up with a friend and run OTC next year so real coilovers will be needed -- but even with the limited stuff I have now I've got the T3 EVO's covered as far as lap times.
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Old 05-06-2004, 08:03 PM   #8
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Did someone say track day

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I'm curious why your tires didn't last... that should be enough camber not to smoke the outside edges.
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Old 05-06-2004, 08:33 PM   #9
V8VENOM
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Possibly these reasons:

1. I ran too much negative camber for 2 sessions (-3.9)
2. I over drove the tires as the car has wicked understeer
3. Car is too heavy for the tires 3370 lbs (car & driver)
4. Hoosier did NOT make a longer lasting tire in the R3S04
5. Bad front/rear toe settings

I corner weighted the car to 50.1% so it was setup well from that perspective.
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Old 05-07-2004, 12:12 AM   #10
ellisnc
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Did someone say track day

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Quote:
Originally posted by V8VENOM
Possibly these reasons:

1. I ran too much negative camber for 2 sessions (-3.9)
2. I over drove the tires as the car has wicked understeer
3. Car is too heavy for the tires 3370 lbs (car & driver)
4. Hoosier did NOT make a longer lasting tire in the R3S04
5. Bad front/rear toe settings

I corner weighted the car to 50.1% so it was setup well from that perspective.
looked like it was understeering quite a bit on the video and I was going to say you were over driving the tires because the fronts were just howling away in every corner. I couldn't really tell for sure from the video but since you called yourself on it
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Old 05-07-2004, 12:28 PM   #11
trojan9x
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where did you see ground control camber/caster plates? I can't find anywhere selling them? do they have them for Rears as well?
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Old 05-07-2004, 12:46 PM   #12
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Excellent times.

What kind of power is your car putting out?

Last edited by HoRo1; 05-07-2004 at 01:04 PM.
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Old 05-07-2004, 01:19 PM   #13
Egan
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Quote:
Originally posted by trojan9x
where did you see ground control camber/caster plates? I can't find anywhere selling them? do they have them for Rears as well?
No rears. For the rear I think the Noltec is one of the thinnest solutions out there.

Here's a link to a big discussion full of pics on the GC camber/castor plates: http://forums.nasioc.com/forums/show...hreadid=498436
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Old 05-07-2004, 04:30 PM   #14
V8VENOM
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For rear i was using offset Camber bolts, no plates up top. I could get -2.2 on the right side but only -1.6 on the left side (rear) -- not exactly sure why.

275 WHP according to Shiv's (Vishnu) dyno on 100 octane map. Probably 350 WHP on anyone else's

Rob
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Old 05-07-2004, 05:21 PM   #15
ogvw
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Quote:
Originally posted by V8VENOM
Possibly these reasons:

1. I ran too much negative camber for 2 sessions (-3.9)
2. I over drove the tires as the car has wicked understeer
3. Car is too heavy for the tires 3370 lbs (car & driver)
4. Hoosier did NOT make a longer lasting tire in the R3S04
5. Bad front/rear toe settings

I corner weighted the car to 50.1% so it was setup well from that perspective.
I was at the track (Silver Evo) your car looked good - pretty fast! I would change the toe before you count the Hoosiers out. I work at Sears Point and ALL the guys here swear by those tires - they say that they give better grip and last longer than the old Hoosiers. Camber really doesnt wear tires - toe does, and toe has a HUGE bearing on car feel and turn in.

If you had the car aligned previously (with normal street camber settings) and changed the camber when you got to the track then you wouldve added a bunch of toe-in (understeer and rapid tire wear).

You'd probably be good with about -2.0* camber and 1/16" total toe out on the front, same in the rear but zero toe.

The car looked really strong on the track -- tough to compare times to the OTC Evos though because they dont run the bypass for turn 5.
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Old 05-07-2004, 05:55 PM   #16
V8VENOM
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I think we met at the gas pump briefly.

-2.0 camber?? Hoosier recommend -3.5?

I'm sure my lack of setting toe front/rear did not have a good affect, but I think it was me just being too agressive on the camber and over driving the car.

I've ran with and without the bypass and it is about 1 sec slower.

Hoosier is a faster tire no doubt, but I need to get used to OTC tire rules so I'll start there from now on.

If the EVO's keep from blowing up like they did in the last OTC, I really don't think they will be much of a challenge

But seriously, I've only just started scratching the surface in terms of my STI -- I've got a long list of things I can do and keep it in T3 for OTC. I haven't done much to the motor and don't plan too -- factory spec & sane boost levels is often the most reliable.
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Old 05-07-2004, 06:16 PM   #17
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Quote:
Originally posted by V8VENOM
I think we met at the gas pump briefly.

-2.0 camber?? Hoosier recommend -3.5?
youre right.... sometimes my typing is worse than my driving 3-3.5* is what that tire likes aparently.

Dont count the Evos out yet...... all the ones at T-hill were on street tires for OTC
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Old 05-07-2004, 08:55 PM   #18
V8VENOM
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Yeah, 140 treadwear -- not a problem
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Old 05-11-2004, 05:16 PM   #19
V8VENOM
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Lap times are up/corrected on www.mylaps.com

http://www.mylaps.com/results/newResults.jsp?id=48028

Pretty cool idea of AMB to provide this service. Transponder buyers can register for free and look at each and every lap time, even permits me to do competitor comparisons.

Rob.
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Old 05-12-2004, 12:12 AM   #20
BIGSKYWRX
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Quote:
Originally posted by ogvw

If you had the car aligned previously (with normal street camber settings) and changed the camber when you got to the track then you wouldve added a bunch of toe-in (understeer and rapid tire wear).

Adding negative camber IIRC increases toe out, not toe in. Still will effect tire wear either way.

Big Sky
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