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

13.0 in the 1/4?

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Old Oct 17, 2001 | 10:35 PM
  #1  
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Default 13.0 in the 1/4?

Do you think I should be doing 13.0 in the quarter? I just got 8.58 @ 83.42 mph in the 1/8.
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Old Oct 17, 2001 | 11:47 PM
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Default Re: 13.0 in the 1/4? (ericcer)

I would agree with a low 13. What was your 60'
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Old Oct 17, 2001 | 11:48 PM
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Default Re: 13.0 in the 1/4? (AS84)

Well.... 8.7's-8.9's typically are about 13.9.
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Old Oct 18, 2001 | 12:06 AM
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Default Re: 13.0 in the 1/4? (scorp508)

Well.... 8.7's-8.9's typically are about 13.9.
That hasn't been my experience maybe I'm confused. You can generally add 2 seconds to your 1000' time and come up with a 1/4 time. My drag car runs a 8.60's in the 1000' with an 1/8 mile time of 6.4 and at MoKan it ran a 10.47 in 1/4.
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Old Oct 18, 2001 | 12:07 AM
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Default Re: 13.0 in the 1/4? (AS84)

That hasn't been my experience maybe I'm confused.

Hmm.... well I think a "rule of thumb" equation some drag racers use is something like ....

1/8th * 1.57 = 1/4

....every time I've been sub 9 seconds in the 1/8th, I've been in the 13s.
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Old Oct 18, 2001 | 02:25 AM
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Default Re: 13.0 in the 1/4? (ericcer)

For my car it figures out to about: 1/8*1.53=1/4
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Old Oct 18, 2001 | 07:45 AM
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Default Re: 13.0 in the 1/4? (jay17)

I did a 1.9 60'. I also have 3.91 gears.


[Modified by ericcer, 5:55 AM 10/18/2001]
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Old Oct 18, 2001 | 08:49 AM
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Default Re: 13.0 in the 1/4? (ericcer)

I'd say your running about 13.3
My last few runs about 2 weeks ago I ran:
1/8-8.665 @84.22
1/4-13.39@104.91

1/8-8.611 @84.11
1/4-13.35@104.61

1/8-8.604 @84.02
1/4-13.34@104.47

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Old Oct 18, 2001 | 10:21 AM
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Default Re: 13.0 in the 1/4? (ericcer)

Though it depends on what your 60' was, I tend to agree with nickd.

Here are the numbers from my latest best pass:
2.010 sec - 60'
8.551 sec - 1/8mi
83.48 mph - 1/8mi
13.281 sec - 1/4mi
103.17 mph - 1/4mi

So I think 13.0 sec is not in the cards till you do some more mods.
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Old Oct 18, 2001 | 11:40 AM
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Default Re: 13.0 in the 1/4? (ericcer)

What was your 1/4 mile MPH?????
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Old Oct 18, 2001 | 03:57 PM
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Default Re: 13.0 in the 1/4? (mackeyred96)

Bear in mind I have a LT4. None of you guys that are quoting you times are. Anyone with a LT4 out there to compare?

Here is my timeslip




[Modified by ericcer, 1:59 PM 10/18/2001]


[Modified by ericcer, 6:19 PM 10/18/2001]


[Modified by ericcer, 6:22 PM 10/18/2001]
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Old Oct 18, 2001 | 10:31 PM
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Default Re: 13.0 in the 1/4? (ericcer)

My one and only timed run to date with a sick car (bad prom) was:
60' @ 2.164
330' @ 5.754
1/8 @ 8.586 & 87.59 mph
1000' @ 10.995
1/4 @ 13.018 & 111.48 mph.

2.73 gears!
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Old Oct 19, 2001 | 09:18 AM
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Default Re: 13.0 in the 1/4? (Ezgoin721)

First off I cut 1.99/2.00 60' times all day long easily.
2nd, your MPH @1/8mi is lower than mine, as well as 4mph lower than Ezgoin721 who is running 13.0.
I'd say at best your cutting 13.20's.
On my best run:

60'=2.00
1/8=8.572
MPH=85.120
1/4=13.258
MPH=105.91

If you want to believe you are running 13.0's and don't like what you are hearing then why did you ask ?



[Modified by nickd, 7:21 AM 10/19/2001]
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Old Oct 19, 2001 | 10:18 AM
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Default Re: 13.0 in the 1/4? (nickd)

My 1/8 mile 8.562 @ 83.36 and I ended up with a 13.222 @ 106.73.

Like nick and others said, your in the 13.2-13.3 neighborhood and it's not a shabby neighborhood at all. :D
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Old Oct 19, 2001 | 03:40 PM
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Default Re: 13.0 in the 1/4? (BubbleHead)

nickd, I am not trying to be a jerk or anything. I just remember a guy with his LT4 posting his 1/4 mile time as 13.0 and I thought his 1/8 was an 8.5. I am trying to compare apples to apples. That is why I want someone with an LT4 to post (not that I don't appreicate the others :)). I got a 13.2 1/4 with a 8.6 1/8 with my 98 T/A M6.
http://web.tampabay.rr.com/eac/ta/im...98timeslip.jpg

I feel that the Corvette is not as powerful as the T/A but on the other hand I am wondering if the Corvette may do better given the lighter weight and better aerodynamics that may show up in the 1/4.
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Old Oct 19, 2001 | 05:05 PM
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Default Re: 13.0 in the 1/4? (ericcer)

Best time to date with the mods listed below was a 13.07 at 108.95. I don't know the 1/8th mile time though, and I know I wasn't far from 12's if I could have kept running when it cooled off.

Sam
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Old Oct 19, 2001 | 05:19 PM
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Default Re: 13.0 in the 1/4? (ericcer)

I forgot you have an LT4, you are probably running a 12.9 with that 1/8 mile time. If it was only an LT-1, like I have, it would be a 13.2 - 13.3 1/4 mile.
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Old Oct 19, 2001 | 07:30 PM
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Default Re: 13.0 in the 1/4? (ericcer)

I'm running an LT4 in a CE Convert. Times are below

'60-2.009
1/8-8.509
MPH-84.25
'1000-11.00
1/4-13.116
MPH-106.57

This is with Runflats on. Only mods are K&N filter and MAT relocation. You should be close. I usually ran in the 13.3-13.4 area with the hardtop on and DR's on in the heat of summer. Looking for some improvement with the cooler weather. Good luck.

:flag
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Old Oct 19, 2001 | 07:32 PM
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Default Re: 13.0 in the 1/4? (Tony.96LT4)

Thanks for all the info guys! I will probably find out for real in a month or so. :)
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Old Oct 19, 2001 | 08:48 PM
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Default Re: 13.0 in the 1/4? (ericcer)

Completely stock LT4...

60 foot 2.06
1/8 time 8.63
1/8 mph 83.36
1/4 time 13.24
1/4 mph 109.78
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