C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Feb 12, 2007 | 01:05 PM
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Default New drag times

1992 LT-1 with supercharger.

Got to the track on Saturday with the new Injectors and an initial tune. There is some spark still backed out while I address a small fuel pressure issue (so more to come!)

Anyway; I posted the following on my second run:

R/T .127
60' 2.175
330 5.671
1/8 8.435
MPH 91.96
1/4 12.649
MPH 118.83

Running street tires, 6 year old Good Year GS-C, 315-17 on the rear: no burn out, accidently left Traction (ASC) switched on (D'oh)

She pulls like a train and I think I could easily get into 11's if I improved my launch and my shifting.

From the numbers above - does anyone have any guidance?

Thanks!
Andy.
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Old Feb 12, 2007 | 01:16 PM
  #2  
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Ha Ha, I've forgot to turn off the traction control before too. Nice reaction time. I'm sure you will be in the 11s soon.
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Old Feb 12, 2007 | 02:41 PM
  #3  
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Originally Posted by djxib
1992 LT-1 with supercharger.

Got to the track on Saturday with the new Injectors and an initial tune. There is some spark still backed out while I address a small fuel pressure issue (so more to come!)

Anyway; I posted the following on my second run:

R/T .127
60' 2.175
330 5.671
1/8 8.435
MPH 91.96
1/4 12.649
MPH 118.83

Running street tires, 6 year old Good Year GS-C, 315-17 on the rear: no burn out, accidently left Traction (ASC) switched on (D'oh)

She pulls like a train and I think I could easily get into 11's if I improved my launch and my shifting.

From the numbers above - does anyone have any guidance?

Thanks!
Andy.

Get some Drag Radials for your rears... you'll gain half a second just from the added traction on your launch... you should be getting 1.9 in your 60' times, I believe, with the right traction. Burnouts are half the fun in drag racing

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Old Feb 12, 2007 | 03:30 PM
  #4  
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From: Redding Ca
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Yup, traction is the next culprit to address. Your mile an hour is telling you the engine is making plenty of power, so I'd concentrate on 60-footers. Tires and gear ratio. I'll bet there is around a half second to be found there.
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Old Feb 12, 2007 | 04:21 PM
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From: San Pablo California
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The mph is a good gauge that tells you that you have a car that is capable of ET's in the sub 11.50 range and from the information that you supplied, you are getting a lot of tire spin.
Eliminate that and hang on!!!
Keep in mind that if you are racing at a NHRA sanctioned track, a roll bar will be required once you hit 11.49 or quicker.
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