Turbo Negro
Lookin' for 10's
- Joined
- Jul 5, 2012
I finally made it back to the track for a test & tune a few weeks ago, and got to make 4 passes. I had a great time, & was very happy with the results.
My original baseline run was a 1.8 60ft. and 13.5et @ 101mph stock turbo, trans, converter, NO alky, & 20 lbs of boost earlier this year (no log). Could hold boost at the line, but smoked the street tires with any boost, and spun shifting into 2nd gear. I thought DR's, and a decent launch alone, would give me an easy high 12sec run, at the time.
Since that initial pass I added: MT 275/60/15 DR's on 8" aluminum GBody repro wheels, Husek built trans, Bison turbo, PTC converter, PTE SLIC, & Razor's ALKY control. I also up'd the boost on the new set-up to around 25lbs with "0" KR & never had to to touch the ALKY. I tried to increase boost by adjusting the actuator rod, but it stayed about the same between runs. Max RPM is only 4900.
My new slip is:
60' 1.858
1/8 7.866 @ 89.85
1/4 12.293@111.05
I was VERY surprised my 60ft didn't improve. I launched @ 20psi of the foot brake!
Replacing the stock valve springs is next on my list, before I go out to the track again. I am only picking up about 21mph from 1/8-1/4mi. I am also going to try the RJC hybrid boost controller to see if I can increase boost.
Converter stall is 2650rpm @ 0 boost. Shifts out around 4900 1-2 & 2-3. RPM drop is ~500. Slip is 0%.
Take a look at the log & let me know what you guys think.
Thanks.
My original baseline run was a 1.8 60ft. and 13.5et @ 101mph stock turbo, trans, converter, NO alky, & 20 lbs of boost earlier this year (no log). Could hold boost at the line, but smoked the street tires with any boost, and spun shifting into 2nd gear. I thought DR's, and a decent launch alone, would give me an easy high 12sec run, at the time.
Since that initial pass I added: MT 275/60/15 DR's on 8" aluminum GBody repro wheels, Husek built trans, Bison turbo, PTC converter, PTE SLIC, & Razor's ALKY control. I also up'd the boost on the new set-up to around 25lbs with "0" KR & never had to to touch the ALKY. I tried to increase boost by adjusting the actuator rod, but it stayed about the same between runs. Max RPM is only 4900.
My new slip is:
60' 1.858
1/8 7.866 @ 89.85
1/4 12.293@111.05
I was VERY surprised my 60ft didn't improve. I launched @ 20psi of the foot brake!
Replacing the stock valve springs is next on my list, before I go out to the track again. I am only picking up about 21mph from 1/8-1/4mi. I am also going to try the RJC hybrid boost controller to see if I can increase boost.
Converter stall is 2650rpm @ 0 boost. Shifts out around 4900 1-2 & 2-3. RPM drop is ~500. Slip is 0%.
Take a look at the log & let me know what you guys think.
Thanks.