First Day at the strip

Road race, Auto X, or the Drag Strip

First Day at the strip

Postby CodingParadox » Sun Mar 12, 2006 4:25 am

I went down to the dragstrip for the first time ever today, to see what I could do with the trac. My radiator had started leaking from the endtanks a few days ago, after a hose popped off on the dyno, so it was leaking. I quickly started having overheating issues, but I still got 4 runs in, then gave up due to overheating and not wanting to damage my motor. I went over to a friend's house and he gave me his old aftermarket GTS radiator, which is actually thicker than the stock AT radiator, so I'm using that for now. For the first time in a while, I seem to have no coolant leaks!

My best run was only a 13.5@105mph. Hmm. I'll take a pic of the timeslips later tonight. I should be at least a full second faster than that, and really should be more than that.

The track was cold, which didn't help traction - I also had too much air in the tires, which didn't help either, but that shouldn't have taken that much off my time. I still only trapped at 105mph, which is indicative of another problem elsewhere.

I'm running the HKS SSQV BOV, but I still had to mostly spool back up between shifts, even though I was shifting what I thought was pretty quickly. I'm gonna try switching back to the short shifter tonight, I think. I'm just wondering if the BOV isn't hooked up to a good enough spot to keep the turbo spooled at 24psi between shifts...

I'm also going to try to install a launch control cable today so I can keep my foot floored between shifts, as well as to help with launches.

Then I'll decide if I wanna go back and drag some more tomorrow. :)
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Postby klue » Sun Mar 12, 2006 6:18 am

when something is spinning at 100k rpm, it tends to slow down pretty quickly. making 24 psi lol its not going to hold that for long without a large air flow, what does the boost drop down to after shifitin?
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Postby SeanGTS » Sun Mar 12, 2006 7:38 am

Very cool nonetheless :) We'll have to hit it up again tomorrow if the weather prevails :D
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Postby toayoztan » Tue Mar 14, 2006 2:06 am

Have a picture of your timeslip? I'm very curious on the stats of your run.

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Postby sleeper » Tue Mar 14, 2006 3:20 pm

if you have 392awhp you shuld be able to trap close to 120mph!
so either it`s something wrong with your car or you suck at driving! :)
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Postby Conan » Tue Mar 14, 2006 7:07 pm

I'd like to post my favorite:
Are you sure it was 392WHP not flywheel HP? :)
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Postby CodingParadox » Tue Mar 14, 2006 8:38 pm

Conan wrote:I'd like to post my favorite:
Are you sure it was 392WHP not flywheel HP? :)


Yes. :P

The turbo was pretty much completely despooling between shifts, so I was shifting too slowly. In addition I was having overheating issues that I didn't notice until after a few runs, so it's possible I 1. my HG is now leaking, or 2. the EMS was pulling power+timing due to high coolant temps.

In any event, I hooked up the launch control cable, and have been playing around with using that. That should help a bunch for between shifts, as well as I'm gonna switch back to the short shifter.

Yeah, I know I should be closer to 120mph. :P
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Postby Celi-GT4 » Wed Mar 15, 2006 2:12 am

Keep working at it. Drag racig comes with practise. How are your 60fts? Try no to let off 2 much during shifts and let the clutch eat. I ran my times in Kansas with the stock GTS 2k tires on backwards so the tire issue should not kill you. It's the launch, if you run a 2.0 60ft and then run a 1.80 you will trap like 8 miles faster. Keep practicing, also what was you SAE corr on the dynojet?
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Postby CodingParadox » Wed Mar 15, 2006 2:15 am

SAE corrected was the 392whp. Yeah my 60ft times were around 2.2, so I'm still working on that. Launch control should help.

Edit by KORacing: 392whp was with STD correction and in 2wd mode.
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Postby Griffin » Wed Mar 15, 2006 5:15 am

That MPH is way low regardless - you should be in the 110s or 120s at least. Something else is wrong besides just the launch and shifting speed.
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Postby Celi-GT4 » Wed Mar 15, 2006 8:48 pm

Coding I realize that is the sae corrrected, I am wondering what the correction factor was (ie .102 or 1.18 etc). By pulling a 1.8 60ft I bet you would see nearly .8sec of the ET.
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Postby RedCelicaTRD » Wed Mar 15, 2006 9:18 pm

You where at PIR, right? Did you happen to see a white Supra there?
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Postby CodingParadox » Wed Mar 15, 2006 10:10 pm

No, I was at woodburn, but the white supra was there.

The correction factor was only like 1.02. It was 389whp uncorrected and 392whp corrected.
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Postby SeanGTS » Wed Mar 22, 2006 4:22 am

I still think you should of forgotten about the whole burn out thing. My instructions were pretty clear, to just a quick chirp in the beginning of the day to clean them off.

Next time, skip the AWD burnout, its killing your 60 foots.
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Postby CodingParadox » Wed Mar 22, 2006 4:37 am

I think the launch control will help more. Holding 9psi at the line is kinda nice. :)
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