New Best ET...
Thread Starter
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
New Best ET...
.....happened this past Saturday at Quaker City Dragstrip. This was the weekend of the Steel Valley SuperNationals and the strip was open for "Test and Tune" all weekend. Needless to say, this fun weekend logged thousands of non-stop drag runs.
It was hot and humid, but the new 427 combo posted a 11.07 best time. The first run was 11.11 but I ran up against the rev limiter at around 6800 rpm....I tried shifting at 6500 but the engine revved too quickly upward from there and sputtered.
( Question- how accurate is the factory tach?....the needle bounced around near 6500, so I think I was possibly higher than indicated.)
The next run I short shifted at 6000 1st-to-2nd, and 5500 for 2nd to 3rd gear (auto trans). Off the line, I footbraked to 2000 rpm and let the converter flash.....instant hook-up!
It was apparent that it would be much later before it would cool off and with hundreds of others waiting, too, I called it a day and will make
my assault on the "10's" at another time. In the meantime, I'll adjust the rev limiter and maybe buy a more accurate tach.
Time slip info...1st run
2nd run....better ET, though lower trap speed
It was hot and humid, but the new 427 combo posted a 11.07 best time. The first run was 11.11 but I ran up against the rev limiter at around 6800 rpm....I tried shifting at 6500 but the engine revved too quickly upward from there and sputtered.
( Question- how accurate is the factory tach?....the needle bounced around near 6500, so I think I was possibly higher than indicated.)
The next run I short shifted at 6000 1st-to-2nd, and 5500 for 2nd to 3rd gear (auto trans). Off the line, I footbraked to 2000 rpm and let the converter flash.....instant hook-up!
It was apparent that it would be much later before it would cool off and with hundreds of others waiting, too, I called it a day and will make
my assault on the "10's" at another time. In the meantime, I'll adjust the rev limiter and maybe buy a more accurate tach.
Time slip info...1st run
2nd run....better ET, though lower trap speed
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Congrats! 
Those 60' times have to come down. With your kind of power, you should be in the high 1.40's - mid 1.50's...
Just noticed the 5.005 60' time of your opponent.. Did he race with his bicycle??
Those 60' times have to come down. With your kind of power, you should be in the high 1.40's - mid 1.50's...
Just noticed the 5.005 60' time of your opponent.. Did he race with his bicycle??
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Nice runs.
The factory tach cable will bounce all over the place and is not very accurate. I replaced mine with an electronic factory looking tach and it is much smoother and reliable. I also use a shift light so I don't even look at the tach anymore. Just shift when the lights comes on.
The factory tach cable will bounce all over the place and is not very accurate. I replaced mine with an electronic factory looking tach and it is much smoother and reliable. I also use a shift light so I don't even look at the tach anymore. Just shift when the lights comes on.
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
NICE......thats a true 10 sec street driven corvette right there.....I love it....Cooler day and more practice learning the shift points and I see 10.80s@125.....
You could probably get it to 60' a little better but......I doubt you ever se 1.40s with stock suspension, full weight etc...... I could see some 1.50s-1.55s maybe but.....
So 630 crank HP is getting 125mph through the traps through TH400...... That gives me an idea of where I need to be.
You could probably get it to 60' a little better but......I doubt you ever se 1.40s with stock suspension, full weight etc...... I could see some 1.50s-1.55s maybe but.....
So 630 crank HP is getting 125mph through the traps through TH400...... That gives me an idea of where I need to be.
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
I had a 1.59 60' time with my old 383,the Tremec 5-speed and stock suspension. My old 383 had a lot less power than his 427.. When upgrading shocks and springs to drag springs and with more power (still less than he has), I had a 1.399 60' time.. My current 60' times are slower as I only have a 2-speed Glide with a 1.80 first gear.. However, with a big first gear, there's no reason to 60' in the 1.60's+ range with that kind of power..
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Thread Starter
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
Tires are MT ET Street Radials...
http://store.summitracing.com/largei...=mtt-3752r.jpg
Thread Starter
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
Video (Very Short)
Short footage, so don't blink....
Last edited by C3 Stroker; Jun 26, 2008 at 09:46 PM.
Race Director
Joined: Jan 2003
Posts: 15,176
Likes: 87
From: State of Confusion
I love Quaker City Dragway..... I was lucky-enough to win the first time I towed through the gates there (1992 Memorial Day Classic), and never, ever won another round of Eliminations at that joint.....
Glad to see the track made it past the 50-year mark!
Thanks for sharing, and congrats on your new best-ET!
Glad to see the track made it past the 50-year mark!
Thanks for sharing, and congrats on your new best-ET!
Race Director
Joined: Jan 2000
Posts: 13,017
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From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Cool! That's just a nice cool day away from the 10's! That 427 is making some great power. It's picking up a good 26+MPH on the back half. Looks like a lot of fun...and even more fun because it doesn't have the race car look.....sleeper surprise!!
Congratulations again!
JIM
Congratulations again!
JIM
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Cool! That's just a nice cool day away from the 10's! That 427 is making some great power. It's picking up a good 26+MPH on the back half. Looks like a lot of fun...and even more fun because it doesn't have the race car look.....sleeper surprise!!
Congratulations again!
JIM
Congratulations again!
JIM
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Yeah it sounded like it could have used a tad more flash in the converter.....at least from the video..HOLY **** it sounded good when it came on though.....Sounded like he sprayed it a couple car lengths out of the hole when it came on.. All on a stock rear end and driveshaft? That is a true sleeper right there..... Thats EXACTLY what I want my car to be... Although I am curious how easy it is to live with on a weekend driver basis(aka. 500 mile weekends etc)...
What a great car....
What a great car....
Last edited by ajrothm; Jun 27, 2008 at 09:26 AM.
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
NICE......thats a true 10 sec street driven corvette right there.....I love it....Cooler day and more practice learning the shift points and I see 10.80s@125.....
You could probably get it to 60' a little better but......I doubt you ever se 1.40s with stock suspension, full weight etc...... I could see some 1.50s-1.55s maybe but.....
So 630 crank HP is getting 125mph through the traps through TH400...... That gives me an idea of where I need to be.
You could probably get it to 60' a little better but......I doubt you ever se 1.40s with stock suspension, full weight etc...... I could see some 1.50s-1.55s maybe but.....
So 630 crank HP is getting 125mph through the traps through TH400...... That gives me an idea of where I need to be.