Trevor's 1/4 mile passes (new results on page 4)

Road race, Auto X, or the Drag Strip

Postby CMS-GT4 » Sun Aug 31, 2008 5:49 pm

I see. So how much faster do you think this setup will get you? How are these gear ratios treating you during the runs? Too short, too long or just right?
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Postby magnum » Sun Aug 31, 2008 9:38 pm

Corey Darling wrote:Congrats ! :D

What kind of 0-60 times does that translate into?
He could try this calculator, not saying it's 100% correct but it will give a good guess.
http://www.060calculator.com/
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Postby tissimo » Mon Sep 01, 2008 11:24 pm

Very nice man! you have the clutchmasters fx700 clutch right? how do you like it?
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Postby tjdouble07 » Mon Sep 01, 2008 11:37 pm

So far, it's been a great clutch. Can't complain.
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Postby etantshi » Tue Sep 02, 2008 1:33 am

You put the CS hood on yet? I bet you gain a sec when you put my JDM modded CS vent.
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Postby Gary » Tue Sep 02, 2008 1:38 am

etantshi wrote:You put the CS hood on yet? I bet you gain a sec when you put my JDM modded CS vent.

Gain a sec? :P
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Postby CMS-GT4 » Tue Sep 02, 2008 1:51 am

5lbs less and reduced drag. More like .00000001 seconds. ;)
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Postby Klas » Tue Sep 02, 2008 2:28 am

Congrats! You my friend, you just got me inspired to finnish my project.
Thanks :D
Looking forward to see just how fast your car really is. :shoots:
1/4 in 12.577s 176km/h so far
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Postby vip09 » Tue Sep 02, 2008 5:38 am

Great job buddy!
Best GT-S STOCK times: 1/4: 14.788 @ 94.98mph 1/8: 9.640 @ 75.87mph
Best Alltrac times: 1/4: 12.2 @ 115mph 1/8th: 7.9 @ 91mph
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Postby alltrac101 » Tue Sep 02, 2008 1:58 pm

Trevor

Congrats, welcome to the "10sec Club"!

Looks like its gona be real fast...the launch is just real tricky with that much power. If you'd like I can scan & post up one of my 10 sec pass so you can compare.

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Postby tjdouble07 » Tue Sep 02, 2008 2:27 pm

alltrac101 wrote:Trevor

Congrats, welcome to the "10sec Club"!

Looks like its gona be real fast...the launch is just real tricky with that much power. If you'd like I can scan & post up one of my 10 sec pass so you can compare.

Pat


Thanks Pat!

Yeah, I have no clue how to launch my car. I'm thinkin of using a two step, but not sure of a good RPM to launch. I started setting it up, but didn't use it. I even have flat shift capability, but haven't set it up. Also, I have slicks, but at 25 psi and no burnout to warm them up, they were about useless... Any suggestions? Tire pressure? Good RPM to launch? I appriciate any advise you can give. I plan on takin her back out this Friday and seein if I can get a sub-10.5 pass in. Sucks I only got one run in last Friday...
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Postby alltrac101 » Tue Sep 02, 2008 2:46 pm

Trevor

I havent used my 2 step or flat shift either, I just part throttle the rpm to 6K then floor it as I'm lifting the cluch (slipping it a little), getting between 1.656 & 1.95...most are 1.7 & between 110-114mph in the 1/8, this is on 17" road race Kumoh tire 235/40 @ 25 psi. Cant help you with the slicks question since the smalles wheel I can fit is 17" because of the big brakes :(...dont want to flat shift yet since I cant work on the car if it breaks.

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Postby tjdouble07 » Tue Sep 02, 2008 2:51 pm

Cool, thanks Pat. I'll try the partial slip of the clutch @ 6K like you said and see how she does.
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Postby alltrac101 » Tue Sep 02, 2008 3:36 pm

Good luck
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Postby lumbercis » Wed Sep 03, 2008 5:39 pm

tjdouble07 wrote:
Yeah, I have no clue how to launch my car. I'm thinkin of using a two step, but not sure of a good RPM to launch. I started setting it up, but didn't use it. I even have flat shift capability, but haven't set it up. Also, I have slicks, but at 25 psi and no burnout to warm them up, they were about useless... Any suggestions? Tire pressure? Good RPM to launch? I appriciate any advise you can give. I plan on takin her back out this Friday and seein if I can get a sub-10.5 pass in. Sucks I only got one run in last Friday...


The only reason I can think of not to use the two-step is that you may experience more parts breakage because you will be making so much more power off the line. I read in your other thread that you are still on all stock drivetrain parts. Unfortunately, no one has ever two-stepped this kind of power on an alltrac, so we don't know what the stock parts will put up with. But almost all serious turbo drag racers use a two-step. Otherwise you are giving up tons on your 60ft.

The easiest way for you to go faster with your current setup is to get some real drag wheels. You can either blow a lot of money on some bogart aluminum drag wheels or do what the Evo and DSM guys do and get some 15" Motegi Draglites or Rota Slipstreams. You might also consider going to a 26" slick.

The 26" slick should theoretically help with parts breakage if you decide to 2-step. The larger sidewall can cushion some of the shock. OTOH, you will be biting harder which may lead to more breakage. :shrug:

As far as suspension setup, from what I've read, you want to set it up like a FWD car, stiff in the rear and softer up front to dial out squat. Do some reading on the Evo or DSM forums for more info.

I'm afraid you are our guinea pig for most of this stuff. I think the best advice that I have heard is to not change a bunch of things at once, but change one thing at a time and see what makes you faster. If I was making changes I would get some dedicated drag wheels first, then dial in the suspension, then play with the 2-step.

Congratulations on the new record and good luck!!!

J.
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