Track Results with 150 Shot

I recently went to the track for the first time on spray and slicks. Results were:

12.21 @ 114.7 with a 1.81 60'

It a 6 Speed LT1 Z28 with LT Headers, cold air, and exhaust. Motor has never been touched. Stock drivetrain other than 3.73 gear and I used a 26x10.6x16 ET STreet.

I ran a 62N, and 35F jet in the NX kit. I also have a Walbro 255 and Digital 6 pulling 4.5 degrees. The only problem was that I didn't have a heater and had 700 psi in the bottle. Will this make that big of a difference in the times? I was hoping for more mph.

Also, the car weighed in at 3340, 3500 with me in it. Any thoughts?

Yeah, that low of pressure will make a significant difference. Also, you will probably pick up some HP by stepping down to a lower fuel jet like 31 or 33. Experiment at your own risk. :)

I'd say you should be able to hit 117-119 with the above.

Wow nice times? So the rear end is stock accept for the gears? How Many runs did you do? Also what kinda fbody is it, I ask because 3500pound with driver sounds pretty light!

those are nice times. but can be better.

low pressure sure is the cause......get the heater installed, and get a better times.....thanks

when my motor was stock it ran a 11.96@110mph:confused: I dont know what was up with the mph. I always try to get around 1200 psi befroe purge. IMO and at your own risk Junk that timing retard. (power retard is what I call it lol) Unless you are getting any pinging.But don't worry to much about the motor its the rearend that is going to blow:( Get some good bottle pressure and go again.. You will be amazed at what 300 more psi will do.

Sorry, I do have a Strange 12 bolt so I am not too worried about the rearend. Stock clutch and stock driveshaft.

I was mainly curious as to the effect the low bottle pressure would have on the times. I will have to throw a heater in there.

I just can't believe that people are running low 11's with bolt-ons and nitrous!

Originally posted by Jim_H
I just can't believe that people are running low 11's with bolt-ons and nitrous!

There are only about 3 of them around here. the rest are H&Cammed like me.