Re: my times with the afr 165 heads
Reply #14 –
Not really, before I had my tune, I was pushing about 292 rwhp on a good day (when my f'in C&L meter would work properly). I ran a 13.47 @ 107.2 mph spinning all the way through 1st and second (I pulled a 2.6 60" time). This was on a very stiff suspension, non locking rear and street tires with 5 speed manual with stock shifter and 3.08 gears. So I definetly lost some time and MPH on that run. If I had optimal track conditions and equiptment to leave the line better, I am almost certain that I could've pulled a similar time/mph as rob302. My car is a 1988 XR7 with every option and a (at that time) 240lb driver.
There are also SC'd 4.6L MN-12 guys pushing about 310-320 rwhp and running high 12's @ 109ish mph, and their cars weigh just a hair under 4K with driver.