I thought I would give a quick update to what has been going on with my car. I decided to intercool the car. The primary reason was to keep it cool and a little added insurance. If I gained a few HP in the process than that would be cool too. I did not want to put a big tail on the car though, I wanted to keep the sleeper look... So, we fabbed a custom intercooler to fit under a ducktail.
Tha car was run on the dyno with and without the intercooler. The numbers were very close in both configurations about 340RWHP without the intercooler and as much as 358.7 RWHP with the intercooler. The day the car was on the dyno it was 105 degrees, so I would imagine that on a cool day and with the car moving we should be making a bit more. The boost was run from 14 psi up to as high as 17 psi (.97-1.17 bar) with 91 octane as well as 100 octane fuel. NEVER a hint of detonation!!! Henry's Twin-Plug set-up is too cool. Based on the dyno numbers, I will run the car at 15psi (1.03 bar) and will enjoy right at 349 RWHP!!!!
I am also now running 17x8 & 9.5's with 235/275 Toyo RA-1's to keep her planted.
Bryan
(For more detail on the engine go to "'74 turbo project" in the engine forum)
