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Old 03-20-2001, 03:10 PM   #1
Strepto
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Lightbulb WRX in GS...

I know this is "old" news, but now it's official. Here is the link to the April tech bulliten: http://www.scca.org/news/tech/seb/02-04-01.html
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Old 03-21-2001, 12:53 AM   #2
ndmorespd
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Thumbs down

What do you say???

I guess I'll have to wait and see what kinda times people run with it... But it looks like my domination of GS here locally may be over...

Mike
#25
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Old 03-21-2001, 01:30 PM   #3
Midwayman
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Dont give up.
auto-x is 90% driver
The WRX is heavier
The WRX is less powerful before 3k
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Old 03-21-2001, 01:40 PM   #4
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and tires too
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Old 03-21-2001, 03:22 PM   #5
Pilot
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The WRX is also geared fairly tall so RS driver's will be shifting much less, and WRX driver's will get caught off boost in second gear a lot. Take it from a guy who autoXs a 944 turbo, same problem.
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Old 03-21-2001, 03:28 PM   #6
GT2RS
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Lightbulb

Don't be surprised if most WRX gets embarassed in auto-x...like what everybody else said, it's dead below 3K rpm. The car is made for more open spaces not auto-x courses.
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Old 03-21-2001, 03:34 PM   #7
RidinLow
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Yeah, I must admit I'm a bit worried autoxing the WRX. It was easy in the RS because you could take the slow corners in 2nd at 1500 rpm & the car would just pull right out of the corners. In the WRX, if you do that, you won't be accelerating for at least 5-10 seconds. At least the pedals are placed perfectly for heel & toeing .
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Old 03-21-2001, 03:35 PM   #8
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If you don't use left-foot braking, better start learning.
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Old 03-21-2001, 07:10 PM   #9
RidinLow
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What makes you say that?
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Old 03-21-2001, 07:16 PM   #10
Strepto
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left foot braking means you can keep on the gas with your right to keep the turbo spoolled and you won't have to deal with that tiny amount of lag you have.
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Old 03-21-2001, 08:08 PM   #11
ColinL
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correct. and when you're learning left-foot braking, it is perfectly normal to get brain fade a few times and jam the brake while attempting to shift (whoops, shoulda been the clutch) or come to a stop without taking it out of gear (whoops, stalled it).
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Old 03-21-2001, 10:20 PM   #12
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So where is the Rex going to go in street prepared? Anyone know?

As for the Rex autoXing, the key is to keep the boost up, and try to make the boost kick in just past the apex of your line.

nuf said.
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Old 03-22-2001, 12:12 AM   #13
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there was a WRX at the auto-x last weekend just watching. next event i expect a bunch to show up 10 cars is enough, i don't need an extra 5 versions of my car with better suspension and a 14.5 psi.
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Old 03-22-2001, 12:25 AM   #14
ndmorespd
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Question

Midwayman,

I understand what you are saying re: driver vs car...

But...

I dunno.. I still think it may be better suited for AS...

Mike
#25 (for now)
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Old 03-22-2001, 06:23 AM   #15
ColinL
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A WRX in A Stock would be sheep to the wolves. The wolves being: Boxster (not S), 968, S2000, MR2 Turbo. It can't beat those cars autocrossing-- only the 968 is as heavy, and it's got 236HP naturally aspirated. Not to mention better suspension, weight distribution, lower cg, etc... It was a lot more than $24,000 of course, and it isn't built with any concern for rallying.
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Old 03-22-2001, 06:37 AM   #16
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So...an automatic WRX should do well compared to a 5spd WRX then eh?
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Old 03-22-2001, 08:10 AM   #17
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I dunno about the left foot braking... I brake torqued the demo car & it still could barely leave the line. We'll see what happens next month when I autox my Rex.
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Old 03-22-2001, 10:38 AM   #18
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Brake torqueing is different than left-foot braking. In an autocross situation, you would use your left foot to brake for a corner, while keeping a bit of pressure applied to the throttle pedal with the right foot.

This helps to keep the "boost" up, so that you can accelerate quicker out of a corner, by releasing brake pressure to begin acceleration, as opposed to having to get back in the throttle, whcih can have a bit of lag or hessitation before the turbo will kickk in at lower revs.

Needed to do this quite a bit on twisty mountain roads with my Saab 900 8V turbo. It was really low on scoot below 3,000rpm, and had a pretty good amount of "lag".

Also...if the car you tested was an automatic (must be from the brake torqueing reference), it will only launch as hard as the torque converter will allow it. If the stall speed on the converter is only 2,000rpm, it wouldn't matter how much brake torqueing you did...it won't launch any higher than 2,000rpm engine speed.

c'

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Old 03-23-2001, 09:03 AM   #19
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Since I'm kind of new to the whole GS thing. What size tire are most people going with? I didn't see a very good fit in the Hoosier line.

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Old 03-23-2001, 09:13 AM   #20
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Hmm, good point, subrew2. I actually had a dream that I was left foot braking my car last night.

autorex, I'm using my leftover A032R's. They're probably the least competitive R compound tire, but they last long, they come in a 205/55 16 size, and I bought them wrapped around MY98 rims for $300 .
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Old 03-23-2001, 10:21 AM   #21
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I'm now running Kumho V700 in 225/50-16 size. I'm running a 3/16" spacer to provide clearance on the rear struts. With stock struts, I rubber on the fender a bit. With the KYB's, it is now stiff enough not to rub.

I was running 225/50-16 Yoko A-008RS2 last year, which were actually wider than the Kumhos.

Chris Hartman www.subrew.com
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Old 03-23-2001, 03:07 PM   #22
Travis R
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Kumho says you can run the 225/50-16 on as narrow as a 6" rim. So I'm guess people will run them on the WRX with it's 6.5" rim. It seems like an awefully wide tire to be putting on such a narrow rim. I'd be concerned about the handling during transitions, it might be a little sloppy. But I guess the more grip the merrier. If you had a little extra money to throw around you could get 205/50-16 Hoosiers.
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Old 03-23-2001, 03:32 PM   #23
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For the Hoosiers, Tirerack only lists a 225/50/16 in the autocross compound, 205/45/16 in the road race compound. I'll probably go with the 205/45/16 when I get around to getting some more tires. Unfortunately, I just ordered two sets of tires for my race car, so I think I'm going to have to wait on the R compound for the WRX.
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