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

estimated 1/4 mile time?

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Old Oct 28, 2002 | 11:37 PM
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red_89_vette's Avatar
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Default estimated 1/4 mile time?

I know this is a pretty stupid question but i'm gonna ask it anyways. I have some mods, like intake runner, TB Coolany Bypass, Removed MAF screen, Removed Catylic Converter, Cut-outs, K&N Air Filter, knocked up my timing, ported out my TB and removed the frisbee. Can anyone take a wild guess as to what my 1/4 mile time would be? or what my horsepower would be? BTW It's an automatic tranny.

thanx guys

:p:
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Old Oct 28, 2002 | 11:53 PM
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Default Re: estimated 1/4 mile time? (red_89_vette)

I don't think it's a stupid question. I have pretty much what you have on my 88. You don't say what your diff ratio is, mine is 3.07. Best ever time 13.39 at 102.
Harold
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Old Oct 28, 2002 | 11:57 PM
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Default Re: estimated 1/4 mile time? (red_89_vette)

Tough to say but I'd say around...14.2 @ 97mph. 0-60' = 2.15
:flag
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Old Oct 29, 2002 | 12:09 AM
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Default Re: estimated 1/4 mile time? (red_89_vette)

Mid to high 13s, depending on gears and weather.
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Old Oct 29, 2002 | 12:11 AM
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Default Re: estimated 1/4 mile time? (65Z01)

I haven't changed my diff ratio....but i'm not sure what it is stock , i've heard it may be 2:59...does that make sense?
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Old Oct 29, 2002 | 12:12 AM
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Default Re: estimated 1/4 mile time? (65Z01)

Well the frisbee is 10hp or so, and all that other stuff may add to 15-20.

I would say mid 13s at best.
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Old Oct 29, 2002 | 12:18 AM
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Default Re: estimated 1/4 mile time? (vader86)

I thought the HP would be a bit higher with those runners...oh well it still feels quick
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Old Oct 29, 2002 | 12:20 AM
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Default Re: estimated 1/4 mile time? (red_89_vette)

I haven't changed my diff ratio....but i'm not sure what it is stock , i've heard it may be 2:59...does that make sense?
Look in your RPO codes for any Gxx code. 2.59 and 3.07 were available.
Going up to 3.07s (if you do have 2.59s) wouldnt be as good a mod as a new TC.
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Old Oct 29, 2002 | 01:15 AM
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Default Re: estimated 1/4 mile time? (red_89_vette)

maybe this will help. heres a list of the mods i did and the track times i got from them:

1) bone stock 89' auto with 3.07 gears - 13.9 at 99mph w 2.0 60ft
2) flowmaster force 2 catback exhaust - 13.8 at 100mph w 2.0 60ft
3) K&N filter with cut lid - 13.6 at 101mph w 1.9 60ft
4) ported plenum, 160* stat, airfoil, AFPR, removed frisbee, descreened MAF - 13.4 at 102mph w 1.9 60ft
5) MAD front ypipe, BFGoodrich drag radials, bumped timing - 13.2 at 104mph w 1.8 60ft
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Old Oct 29, 2002 | 10:31 AM
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Default Re: estimated 1/4 mile time? (red_89_vette)

You might try the Desktop Dyno 2000 software. It's fun to see how much money you'll have to spend on which part next. Hard to say though with only one intake runner, as your post was written.

BIG JIM


[Modified by BIG JIM 54, 2:33 PM 10/29/2002]
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Old Oct 29, 2002 | 09:10 PM
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Default Re: estimated 1/4 mile time? (BIG JIM 54)

You might try the Desktop Dyno 2000 software. It's fun to see how much money you'll have to spend on which part next. Hard to say though with only one intake runner, as your post was written.

BIG JIM


[Modified by BIG JIM 54, 2:33 PM 10/29/2002]
Oops I have both runner, the SLP Siamese ones and I also ported the plenum.
http://pages.sprint.ca/red89vette/engine.html
http://pages.sprint.ca/red89vette/engine1.html
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