Went to Breakaway Dragway today to run some 1/8th mile.....I was really just trying to practice on launching on drag radials,and test out my nitrous setup. I was running 9.2-9.7's on motor (it was 100deg most of the day). I ran 8.86 on my best pass on the 75 shot. I upped the shot to a 100 and spun 2nd, all the way through 3rd and had a nitrous backfire at the end of the track. I was wondering what the best way to launch was? I tried to preload but it's hard to do with a 4puck unsprung clutch, i cut several 2.2 60' but if it hooked, I would go straight to spray and spin up to the rev limiter and do the same through 3rd gear. I also broke my driver side cv axle (autozone lifetime FTW). Any ideas? I also have a crome chipped ecu with the 2step set at 5500 rpm's, it would hook if I feathered the gas off the line.......motor is a LS, made 149/125 on the motor, hopefully going to break 250 on the direct port. Thanks alot!

 

From what i have see, a car on nitrous doesnt need to have such a high rev. Personally i would have your nitrous switch activated so once u let off the clutch it comes on. Nitrous is a INSTANT power. A turbo is more of a wait then boom ur out(unless u have a small turbo).So just keep ur RPM launch like around 3000 on 2-step since ur on stock axles and drag radials.

 

3000 will bog, I launched it at about 3500 today and cut a 2.23 60'. I also race at SGMP in Cecil, and it's easier to hook up there, so I could probbably leave off the 2step and hook pretty decent at 5k. I am thinking my best bet is a w.o.t. switch.....

 

Hook ur nitrous up with a relay to a toggle and a push button, so ur on ur 2-step at 3000 with ur foot to the floor, then let the button out as you let the clutch out. With a 100 shot of nitrous, there is no way you will bog the launch. So if you dont want nitrous on just flip toggle off or let off gas.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 11SecCrx &raquo;</TD></TR><TR><TD CLASS="quote">Went to Breakaway Dragway today to run some 1/8th mile.....I was really just trying to practice on launching on drag radials,and test out my nitrous setup. I was running 9.2-9.7's on motor (it was 100deg most of the day). I ran 8.86 on my best pass on the 75 shot. I upped the shot to a 100 and spun 2nd, all the way through 3rd and had a nitrous backfire at the end of the track. I was wondering what the best way to launch was? I tried to preload but it's hard to do with a 4puck unsprung clutch, i cut several 2.2 60' but if it hooked, I would go straight to spray and spin up to the rev limiter and do the same through 3rd gear. I also broke my driver side cv axle (autozone lifetime FTW). Any ideas? I also have a crome chipped ecu with the 2step set at 5500 rpm's, it would hook if I feathered the gas off the line.......motor is a LS, made 149/125 on the motor, hopefully going to break 250 on the direct port. Thanks alot! </TD></TR></TABLE>


run slicks!! or you are just going to spin the way it is.. unless you hook it up with a button and don't squeeze off the line.. but either way it will spin..

Slicks are the best way to improve your times!

 

i've got it hooked up to a button in the top of my shift ****. if i come off the line on the bottle it goes straight to the limiter. anyway, its looking like i need to order some lensos and m/t's.