Just got our F1 project truck done and dynoed. We through it on the dyno with 8lb. of boost and we happy to see that it dynoed 703 RWHP. Still having a problem lifting the heads though. Any time we go above 8lb. of boost we have problems lifting the heads. We need to put bigger studs in the heads down the road. The setup includes:
-6.0L block
-Custom Diamond Pistons
-Lunati Rods
-Stock Crank
-LQ9 Heads with bigger valves
-AZ Longtubes
-Blower cam
-& we keyed the crankshaft
You guys can check it out if you like. (Link)

Sean

 

Lifting heads and 703rwhp with 8psi only What is the cam specs? Whats the C/R? How much timing are u guys pushing? Is that done on pump gas or race gas? 8psi and 703rwhp is awsome.

 

Comp 220/224 .564/.567 115. 8.1 Compression. 15* of timming with a half mix of 104 and 91. We were having a hard time keeping the tires on the dyno. They kept spinning every time it went into boost.

Sean

 

So u gained around 350rwhp with only 8psi and 15 degree of timing only. Thats a 42rwhp per psi. What kind of blower are u running? That is one efficient setup u got there.

 

Seems REALLY efficient, almost similar to wilkinsons F1 w/10lbs, but that was with a C5R motor......

Whats your intercooler setup consist of?

 

It is an F1 Procharger. We used a 3 core single large intercooler. We were very supprised with the performance gain. The first charger we had on it was the Radix and when we put the F1 on it it felt like thowing a 150 on top of the old setup. It went from spinning the tires for about 10 feet out of the hole to spining them at 40MPH, around the same distance. I couldnt believe the gain we got out of it.

 

What blower bracket are you using with this F1?

 

Stock with Thunders belt tensioner.

 

Is your dyno brokin? Or did you put the wrong pully?

 

What does thunder do to modify the bracket?

 

They make it a self tensioner. So you can put as much pressure on the belt as you want.

 

It gives it enough belt wrap w/no slip?