Looking to upgrade my NA Drag Week car and go turbo. 3600lb (with me in it) '79 Malibu.
4L80E trans with brake, 9 inch with 3.70 gear. E85 flex fuel setup.
Wanting to run 8.50 index, so will need it to be 8.20-8.30 capable when set on kill.
Napkin math says this will take in the neighborhood of 1250RWHP. Plan is a 10.5:1cr 408 LS with
cathedral heads, Hi-Ram with a Shearer Fab A2W intercooler sandwiched in it.
A well-known vendor is recommending twin Precision 6766s as a budget setup for my goal, or
twin PT6870s as the baller setup. I'm not against using Precision, but would like to get some input
from people with real-world turbo experience. Would the 6766s be at their limit doing this?
I'm sure there are other alternatives that can get me where I'm wanting to go.
Looks to me like maybe a pair of Borg 69/73 SXEs could do the job. Thoughts?
4L80E trans with brake, 9 inch with 3.70 gear. E85 flex fuel setup.
Wanting to run 8.50 index, so will need it to be 8.20-8.30 capable when set on kill.
Napkin math says this will take in the neighborhood of 1250RWHP. Plan is a 10.5:1cr 408 LS with
cathedral heads, Hi-Ram with a Shearer Fab A2W intercooler sandwiched in it.
A well-known vendor is recommending twin Precision 6766s as a budget setup for my goal, or
twin PT6870s as the baller setup. I'm not against using Precision, but would like to get some input
from people with real-world turbo experience. Would the 6766s be at their limit doing this?
I'm sure there are other alternatives that can get me where I'm wanting to go.
Looks to me like maybe a pair of Borg 69/73 SXEs could do the job. Thoughts?
