taking my 90 vette to the strip sunday
05-05-2006, 08:26 PM
#1
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taking my 90 vette to the strip sunday suggesitons on easy adjustments
This sunday i am taking my 90 vette to the drag strip and was wondering if anyone had any suggesiotns on what i can do to tweak it to run the best most consistant time.
Last edited by olds442/vette; 05-05-2006 at 10:35 PM.
05-06-2006, 02:41 AM
#2
Melting Slicks
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St. Jude Donor '05-'06
You didn't say. Is it a six speed or automatic? For best time clean all storage bins out and remove as much excess weight as you can like remove the spare tire and carrier. If you have the tools and skill you may want to advance timing a couple of degrees. Make sure to get the best fuel you can in your area. A fresh oil change is always a good thing for a day at the track.
Do a nice little burnout to warm tires. You'll find that on a properly prepped track you'll hook way better than on the street.
For consistantcy with automatic just put it in drive (not OD) and hammer down. Let the tranny do the shifting.
For six speed consistancy pick a good RPM where it launches as fast as it can without spinning and try to launch there every time.Then find a good RPM like just before redline or right before it starts to not pull and shift at that RPM every gear, every run.
I have drag radials so I hook well and race with about a 1/4 tank of gas to shave weight. I take a can and add a little every run. Gas weighs roughly 7 lbs. per gallon If you have trouble hooking try running with a full tank and keep it full and drop the pressure in the rear tires to about 18 psi or so. If you have no traction problems then you may shave a few tenths running a lower tank, providing you have no fuel pick up issues with your fuel pump.
Thats all that comes to mind for quick and easy. I hope this helps and please report back on how you do. Have a blast and welcome to the addiction.
Do a nice little burnout to warm tires. You'll find that on a properly prepped track you'll hook way better than on the street.
For consistantcy with automatic just put it in drive (not OD) and hammer down. Let the tranny do the shifting.
For six speed consistancy pick a good RPM where it launches as fast as it can without spinning and try to launch there every time.Then find a good RPM like just before redline or right before it starts to not pull and shift at that RPM every gear, every run.
I have drag radials so I hook well and race with about a 1/4 tank of gas to shave weight. I take a can and add a little every run. Gas weighs roughly 7 lbs. per gallon If you have trouble hooking try running with a full tank and keep it full and drop the pressure in the rear tires to about 18 psi or so. If you have no traction problems then you may shave a few tenths running a lower tank, providing you have no fuel pick up issues with your fuel pump.
Thats all that comes to mind for quick and easy. I hope this helps and please report back on how you do. Have a blast and welcome to the addiction.
05-06-2006, 03:51 AM
#3
Race Director
Good advice above...on rear tire pressure, the golden rule is run the highest pressure you can without spinning (less rolling resistance)...the track prep will have a lot to do with how much pressure you use...in the fronts, I up the pressure to 42 lbs. at the track...remember to put the pressures back to normal before you leave the track...good luck and have fun!...
05-07-2006, 08:37 PM
#4
Pro
taking vette to strip
Originally Posted by skateparkdave
You didn't say. Is it a six speed or automatic? For best time clean all storage bins out and remove as much excess weight as you can like remove the spare tire and carrier. If you have the tools and skill you may want to advance timing a couple of degrees. Make sure to get the best fuel you can in your area. A fresh oil change is always a good thing for a day at the track.
Do a nice little burnout to warm tires. You'll find that on a properly prepped track you'll hook way better than on the street.
For consistantcy with automatic just put it in drive (not OD) and hammer down. Let the tranny do the shifting.
For six speed consistancy pick a good RPM where it launches as fast as it can without spinning and try to launch there every time.Then find a good RPM like just before redline or right before it starts to not pull and shift at that RPM every gear, every run.
I have drag radials so I hook well and race with about a 1/4 tank of gas to shave weight. I take a can and add a little every run. Gas weighs roughly 7 lbs. per gallon If you have trouble hooking try running with a full tank and keep it full and drop the pressure in the rear tires to about 18 psi or so. If you have no traction problems then you may shave a few tenths running a lower tank, providing you have no fuel pick up issues with your fuel pump.
Thats all that comes to mind for quick and easy. I hope this helps and please report back on how you do. Have a blast and welcome to the addiction.
Do a nice little burnout to warm tires. You'll find that on a properly prepped track you'll hook way better than on the street.
For consistantcy with automatic just put it in drive (not OD) and hammer down. Let the tranny do the shifting.
For six speed consistancy pick a good RPM where it launches as fast as it can without spinning and try to launch there every time.Then find a good RPM like just before redline or right before it starts to not pull and shift at that RPM every gear, every run.
I have drag radials so I hook well and race with about a 1/4 tank of gas to shave weight. I take a can and add a little every run. Gas weighs roughly 7 lbs. per gallon If you have trouble hooking try running with a full tank and keep it full and drop the pressure in the rear tires to about 18 psi or so. If you have no traction problems then you may shave a few tenths running a lower tank, providing you have no fuel pick up issues with your fuel pump.
Thats all that comes to mind for quick and easy. I hope this helps and please report back on how you do. Have a blast and welcome to the addiction.
Hey Skatepark,
How does leaving it in D work to your advantage? Won't OD work just as well? Just wondering......
Regards,
Ken
05-07-2006, 11:58 PM
#5
Le Mans Master
TTT, thanks guys, me also in a week or two! (ricer challenge
)
)
05-08-2006, 03:07 AM
#7
Melting Slicks
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St. Jude Donor '05-'06
Is that it? I've just always heard that the 700r4 should be bracket raced in D, and not OD for consistancy and I guess I've never really questioned why.
05-08-2006, 12:17 PM
#8
Race Director
When I first started drag racing my vette I could not get myself to run in D (3rd)...I had visions of blowing up the motor before going through the traps...I had 3:73 gears btw....
Everyone kept telling me to stop running in OD (4th)...finally I got up the sand and went for it...I ran a much lower ET and higher mph!...I went through the traps just under redline and have been doing this ever since, over 4 years now...
When you run in OD the car will/may shift into 4th just before the traps and that extra shift slows you down and bleeds off mph...
Everyone kept telling me to stop running in OD (4th)...finally I got up the sand and went for it...I ran a much lower ET and higher mph!...I went through the traps just under redline and have been doing this ever since, over 4 years now...
When you run in OD the car will/may shift into 4th just before the traps and that extra shift slows you down and bleeds off mph...
05-08-2006, 03:01 PM
#12
Burning Brakes
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St. Jude Donor '05
Originally Posted by skateparkdave
Is that it? I've just always heard that the 700r4 should be bracket raced in D, and not OD for consistancy and I guess I've never really questioned why.
05-08-2006, 04:13 PM
#13
Melting Slicks
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St. Jude Donor '05-'06
Originally Posted by RAGOVET
I think its cause you will lose some acceleration if it shifts from D to OD prior to completing the 1/4 mile. You want to maintain the RPMs associated with D. (IMO)...
So olds442/vette, how'd we do yesterday?