Track Dilemma

[lordmikef]

My 87 GN has the stock converter, stock rear and rebuilt trans i am footbraking the car on the line to about 5# and can't seem to manage better than a 1.9 60' the car runs mid 12's at 108 any ideas

 

[PaCemkr86]

http://www.turbobuick.com/forums/showthread.php?s=&threadid=154561

 

[Fuelie600]

More details. What are you using for suspension? All stock or? Tires? What RPM is the car launching at? Let us know. Brian

 

[lordmikef]

just air bags in the back leaving at about 5 or 6 pounds of boost approximately 3200-3400 275 50 15 on the back

 

[TurboDave]

Originally posted by lordmikef
just air bags in the back leaving at about 5 or 6 pounds of boost approximately 3200-3400 275 50 15 on the back

Well, if you're running street tires (not stickies), then why would you expect much better than 1.9's?

 

[RobsIron]

Mid 12s ain't bad...Unless you got 3k+ in the motor.

What's your combo?

 

[lordmikef]

i've got the nitto extreme drag radials on there. i have a ta49 but im only running it at about 18#. i am sure it could really run at 24# with race gas but my primary concern right now is the 60' . its definitely not spinning the tires. i was going to try a converter. think it will help?

 

[SPOOLFOOL2]

What PSI are you running in the tires? Also, I've heard that you really need to heat Nitos to get them to hook. Why can't you spin the tires? Would a RJC boost controler help you build more boost at the line, or are your brakes not capable of holding back enough boost to launch hard?

 

[lordmikef]

to get good 60' i would think that 5 pounds would be enough ill try and leave a little higher and get back to you guys

 

[XLR8]

If you are not spinning, you should leave with more boost - assuming you can build more boost on the line.

 

[slamming 6]

I have about the same set up as you do the best I got was a 1.72 60 footer.P275-60-15 on a 8in rim tire pressure was 13psi hot.I leave with one psi of boost off the line.

 

[lordmikef]

well i believe that i can build more boost on the line, but as you have just pointed out, i shouldn't have to. it feels like its leaving pretty hard. i guess ill go to the track next week and try different things.