My stock engine/ECU combo with whipple 2.9 with a 3.25 upper and stock lower made 708 to the tire. I cracked the stock engine block and had to get the short block rebuilt. I had a used short block machined and assembled using factory crank with oliver rods and MMR pistons with a slight compression bump to 9.2 or 9.3:1 and total seal file fit rings. Also had the heads rebuilt and surfaced at the same time. I put the heads on the short block and assembled the rest of the long block myself. It runs well and I'm working on smoothing out the tune for low load right now but WOT is dialed.
We strapped it on the Dyno yesterday and with that same 3.25 pulley on E85 it was only making 635 to the tire. I expected it to make just as much as before if not slightly more with the bump in compression. Then with a 150 shot of spray it only picked up about 80HP and made 716.
I fear something may be amiss in the bottom end. I did not assemble that myself and now I am worried. Any good ideas to start with? I'm gonna do a compression test when I can get to it here soon.
We strapped it on the Dyno yesterday and with that same 3.25 pulley on E85 it was only making 635 to the tire. I expected it to make just as much as before if not slightly more with the bump in compression. Then with a 150 shot of spray it only picked up about 80HP and made 716.
I fear something may be amiss in the bottom end. I did not assemble that myself and now I am worried. Any good ideas to start with? I'm gonna do a compression test when I can get to it here soon.