I have a 99 ss that I'm about to change a bunch up on. I haven't tracked it hard since the 408 went in a few years back due to needing the stock high-mile ten bolt to last, so I don't have any idea what's its going to run close to. I just threw in a spooled 9" with 3:90's and decided to build the top end. It's getting some slightly massaged gmpp cnc'd ls3's with a cid single plane and a 4500 throttle body on top (going speed density) and is going out through 2" primary-3" collector headers. Cam is in the 24x-25x, .63x-.60x range with Johnson drop in hydraulics. Static compression is 11.2:1. This is all in front of a 4000 stall 60e and will spin mid to upper 7000 on a 28" mt drag radial. Race weight is probably about 3450. I'm going to try to hit a 1/4 track after the tune in a few weeks. I'll dog the first few runs to get the rear suspension dialed in, but I'll probably only get one glory run in before I get kicked for not having a cage. Any idea what my slip should be looking like? I'd love to hit in the 10.5 area or below.

 

10.5 should be a walk in the park.

 

Agreed, mid 10's....hope you do better.

 

Any updates on your car, track times?

 

Had the car on the dyno maybe a few weeks /month after that post. It made terrible numbers on the rollers and leveled out power and torque numbers past 5000 rpm. Couldn't figure it out that day but eventually found the coils were starting to go out, there was a jammed oring in the fuel rail above cylinder #5, and a few other small things that added up to big losses. While I didn't get it on the rollers again last summer I was able to get a few 1/8 mile hits and got the car into 6.5-6.6 territory with a poor tune, undialed suspension, and crappy tires. Extrapolating those runs I shouldve beern in the low 10's on motor.

However this summer I pulled the car completely apart when I found a low-mile, no rust, 02 camaro roller with a moly 8.5 cage already installed. I just got done installing an rsm front end, with some alterations to make it more useable, and I'm waiting for MWC to get some tubs in stock so I can make some room in the rear. I'm also building a stout 4l80 with a brake to throw in at the same time. I plan on cutting a few hundred pounds out total and want to get the car as close to 30xx lb as possible in street trim as it's still my daily driver. Hopefully with a good hit off the brake, a slightly higher stall, and weight reduction, I could see a 9.9x glory pass before I start throwing boost at it.

 

Those front ends are cool! Got a buddy that done one on his twin turbo car. Nice!