Quote:
Originally Posted by Skull Crusher
They are considered bolt on's to those who know what they're doing and what else would you call heads that bolt on? Bullocks, there are several companies that offer long blocks of your compression choice and are rated over 500 hp.
We're running 396 @ the rear with Pistons (11:1 compression), Cams, Rods, Heads, Headers, Intake, Improved Fueling, Tune, HFC's and cat back on 91 octane. With 96 and above will crest 400 quite easily. With a bit more tweaking, it will surpass 400 rwhp 91 octane and what's been done to the motor is considered mild in comparison. Price is reasonable and the motor is much more reliable then and FI motor, especially for everyday driving.
The problem with an FI motor, is the eternals. They can't take the pressure and continuous abuse. Parts wear quicker and are very susceptible to breakage, particularly mains, rods and cranks caused by inefficient oiling.
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Do you have the dyno graphs? I'd love to see the linear curve. I didn't realize there were all motor builds for the vq37hr since everyone goes forced induction. As for the bolt on comment, it wasn't meant literally. It was more like a part that could be installed in a garage with minor mechanical knowledge. If it was literal was then everything done on the car is pretty much bolt on.
Oops, went off topic. As others have said, forced induction for "best" way to get 400+hp.