what makes a car get to the 60ft?
Originally Posted by jmill96Z
If he could post a picture of his dyno graph it would be easier to explain. When he leaves at 6K plus he is already past max torque and is depending on HP to launch the car.
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Originally Posted by LS1curious
Ahh thats not much in the way of HP. whats the MPH the car is running again ? 110 ish ?
you have the exact same problem i had, too much tire/suspension/traction for the power level.
you need more power or more gear is what the problem is.
launching lower will not help ANYTHING. I had the same probs, i had the same suggestion of launching in peak torque, those launches sucked even more then the bogs off of the limiter.
think about it this way: if you launch off the limiter, the motor will pretty much immediately fall into peak torque and by that time it is already slightly moving.
you need more power or more gear is what the problem is.
launching lower will not help ANYTHING. I had the same probs, i had the same suggestion of launching in peak torque, those launches sucked even more then the bogs off of the limiter.
think about it this way: if you launch off the limiter, the motor will pretty much immediately fall into peak torque and by that time it is already slightly moving.
Originally Posted by ls2 bait
114mph. worst it has trapped since that dyno was 112.8ish. (except for the pass in the video in which i tried 2nd gear twice to no avail then just put it in 3rd to get down the track)
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Originally Posted by 02NBMWS6
thats funny: almost the same mph and with the same cam and the same problem i had
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Originally Posted by vtec
i would prefer to launch higher and let the car come DOWN to max torque.
Originally Posted by 02NBMWS6
launching lower will not help ANYTHING. I had the same probs, i had the same suggestion of launching in peak torque, those launches sucked even more then the bogs off of the limiter.
think about it this way: if you launch off the limiter, the motor will pretty much immediately fall into peak torque and by that time it is already slightly moving.
think about it this way: if you launch off the limiter, the motor will pretty much immediately fall into peak torque and by that time it is already slightly moving.
Last edited by SSwanner; Aug 21, 2007 at 06:36 PM.
On The Tree
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From: Suffolk, VA
I posted a thread about this not long ago. The general consensus was that I need to learn the art of slipping the clutch out of the hole. The car doesn't have enough torque to limit the bog off the line. The other solution to this is more rear gear which will let the car get moving quicker with the available torque. If you are running a 28" tall tire, I would think you would need 4.56 gears. The only thing you need to be careful of is topping out 4th gear before you go through the traps. Personally, I don't think a 1.69 60' is bad at your power level in a manual. I know of a couple '03 cobras in my area that have trouble matching that with 600 wheel hp. Hell, my best is a 1.73
slipping the clutch with some real power = buying a new clutch very often.
i was going 1.59 60' consistently with 385/370 on teh dyno (through a t56) on my car back in the day. i ran 26x11.50x16 et streets as well as 26x10.5 et drags. i spun but that kept the rpms up high and not bogging. spinning is NOT a bad thing on a lower powered manual car.
i was going 1.59 60' consistently with 385/370 on teh dyno (through a t56) on my car back in the day. i ran 26x11.50x16 et streets as well as 26x10.5 et drags. i spun but that kept the rpms up high and not bogging. spinning is NOT a bad thing on a lower powered manual car.
tighten up the suspension all the way around.... start with the rear by one click if that helps try 1 more click.... with your power or any power amount a little bit of wheel speed off the starting line will actually get a faster mph and ET especially in a stick car.... you need to keep the car from hitting the tires so hard.... i bet it picks your front wheels straight up and then drops them and then tries to move forward... idealy you want the car to roll forward while it starts to lift the front tires... a perfect launch you will see the car leave with the wheels up but the front wheels will be turning in the air very slowly...... you dont need to slip the clutch only make the car hook less by tightening up the suspension....
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alright. so by majority im leaving the launch alone just tightening the suspension up and raising the air pressure. should i tighten the front as well as the rear shocks?
fwiw my car 60'd exactly the same (1.69) before the cam, on a 16" et street, and with eibach springs and lg lowering springs. that was also prior to the 2 step without slipping the clutch. that was also prior to the dana 60-still on the 10 bolt.
fwiw my car 60'd exactly the same (1.69) before the cam, on a 16" et street, and with eibach springs and lg lowering springs. that was also prior to the 2 step without slipping the clutch. that was also prior to the dana 60-still on the 10 bolt.
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I would say that maybe you need to drop your exhuast off the headers if you want that camshaft to work.
Originally Posted by ls2 bait
alright. so by majority im leaving the launch alone just tightening the suspension up and raising the air pressure. should i tighten the front as well as the rear shocks?
fwiw my car 60'd exactly the same (1.69) before the cam, on a 16" et street, and with eibach springs and lg lowering springs. that was also prior to the 2 step without slipping the clutch. that was also prior to the dana 60-still on the 10 bolt.
fwiw my car 60'd exactly the same (1.69) before the cam, on a 16" et street, and with eibach springs and lg lowering springs. that was also prior to the 2 step without slipping the clutch. that was also prior to the dana 60-still on the 10 bolt.
On The Tree
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Well, if you don't believe me about slipping the clutch, do a search for a member named "ranger" on the vette forums. I think he is on here too. Wheel spin may help, but clutch slip works better. Also, I agree clutch slip on a car with "real" power means clutch replacement. Not sure what you mean by "real" power but I pretty sure his doesn't qualify (or mine for that matter). The clutch is a wear item. If you wanna run fast with a manual car, you gotta pay. If you wanna take the easy way out, get an auto 