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SIdewalls are fairly stiff on these for drag racing. They are more of a sport handling tire, (I like them, great tires but not the best for drags!) I wouldn't go any lower than about 28 with them, I don't think there would be any advantage going lower and may just create stability problems.
Tip: Don't spin through the water trough, drive around it to where the surface is just damp to heat your tires. I've seen too many people do a burnout and throw water up into the wheel tubs only to "rain" back down on the tires when they roll up to the line. 1/2 Wet tires make a nice visual of a powerful burnout but don't have very good traction
Yes, I always try and drive around the water. That was in past visits but the track is under new management now. Rumor has it they have it coned off in a way that forces you through the wet part. Hopefully I can stay on the high side and avoid the puddles. I have the tq to get them spinning when dry.
That run ended my night. The plastic gas pedal mounting bracket broke in two. I was able to line it up and drive it home. What a bad design. This should not happen.
The Nitto 555 worked good for me. I had no wheel spin leaving as had as I could. (Stock tq convertor). Just did a little burnout to dry off the tires.
The mods I have on this LT1 are 3.54 gears and a LE speced Lunati cam. .546/.565. 217/221 @050. Computer tune. K&N filter element. Stock exhaust manifolds and stock cat converters. Allens muffler eliminators. All else stock.
With light weight wheels I'd be in the 12's. Or a mild stall convertor.
That run ended my night. The plastic gas pedal mounting bracket broke in two. I was able to line it up and drive it home. What a bad design. This should not happen.
that does suck; it happened to me as well and you're right-should never happen.
I upgraded mine to what I thought was a 96 model design that is made of metal vs. plastic; so I think anyway.......
I did both the wet and the dry launch. Wet was horrible, just spinning. Then braking while holding the revs up, spun way to much. Only decent launches I made were off throttle, dry tires. Thinking I need a set of tires for launching. Get me into the 13s.
The Nitto 555 worked good for me. I had no wheel spin leaving as had as I could. (Stock tq convertor). Just did a little burnout to dry off the tires.
The mods I have on this LT1 are 3.54 gears and a LE speced Lunati cam. .546/.565. 217/221 @050. Computer tune. K&N filter element. Stock exhaust manifolds and stock cat converters. Allens muffler eliminators. All else stock.
With light weight wheels I'd be in the 12's. Or a mild stall convertor.
Headers,stall convertor, a 3.73 and MT Drag Radials with just bolt on's put my LT1 in the 12's @ 108MPH witch you already have so I don't think your MPH will change much you'll just get down there quicker.
I've put stall converters in other cars in the past. I've gained as much as 5 tenths using a 2500 stall speed. But this LT1 is primarily a road car, not a weekend drag racer, so the stall converter aint happening with this car. Besides, 9 out of 10 times you get to playing around your already moving when you engage.
I have cast iron stock stock exh manifolds and stock cats still on the car. Do you think if I upgraded the exhaust I could pick up a couple of tenths in the 1/4?
Another thing, on my run the trans was in OD and I just let it shift. If my gas pedal bracket would not have broke, my plan in successive runs was to manually shift and hold it out maybe 200rpm more. That alone might have tipped me into the 12's.
I have cast iron stock stock exh manifolds and stock cats still on the car. Do you think if I upgraded the exhaust I could pick up a couple of tenths in the 1/4?
Another thing, on my run the trans was in OD and I just let it shift. If my gas pedal bracket would not have broke, my plan in successive runs was to manually shift and hold it out maybe 200rpm more. That alone might have tipped me into the 12's.
I'd guess w/your cam, adding LTH's and exhaust would make a meaningful improvement. .
With that engine, and that trans especially on the 1-2 shift, you want to shift as close the the rev limiter as you can...w/o hitting the limiter. So there may be a little to be gained, there, but IDK if it will get you a 1/10th+. What RPM did it shift at?
I'd guess w/your cam, adding LTH's and exhaust would make a meaningful improvement. .
With that engine, and that trans especially on the 1-2 shift, you want to shift as close the the rev limiter as you can...w/o hitting the limiter. So there may be a little to be gained, there, but IDK if it will get you a 1/10th+. What RPM did it shift at?
I know its a different car but I put a 2500 rpm stall vigilante in my Grand National and you couldn't even tell it was there in day to day driving. Knocked .4 off my 1/4 mile times though. but that's a turbo car with some tubo lag so im sure it helps that car a bit more then a vette with the torque of a v8 down low. Seems to me though that with a v8 it would be even more transparent in day to day driving. Now if you get up above 3000 stall speed your going to sacrifice in day to day operations. One thing to keep I mind though is that theres a big difference in a quality converter compared to the cheap ones.
Originally Posted by John Dirks Jr
I've put stall converters in other cars in the past. I've gained as much as 5 tenths using a 2500 stall speed. But this LT1 is primarily a road car, not a weekend drag racer, so the stall converter aint happening with this car. Besides, 9 out of 10 times you get to playing around your already moving when you engage.
I have cast iron stock stock exh manifolds and stock cats still on the car. Do you think if I upgraded the exhaust I could pick up a couple of tenths in the 1/4?
Another thing, on my run the trans was in OD and I just let it shift. If my gas pedal bracket would not have broke, my plan in successive runs was to manually shift and hold it out maybe 200rpm more. That alone might have tipped me into the 12's.
09-25-2015, 11:26 AM
Test n tune
, completely. 
