Originally Posted by vinniekq2
toddalin that engine is making 400 engine hp.the chasis dyno measures rwhp after accessories and driveline take up their share and exhaust too.
rock_dog a 327 does not really make big torque numbers,rev the little engine a bit higher and use a little more rear gear for the torque multiplier in the lower gears.A stock bottom end of a 327 can rev 6500 rpm and last with a good balance.I prefer a solid lifter cam especially for 327s
I'm more of a realistic. I think it is probably more like 360-375 hp at the crank. I have very little parasitic loss compared to most, only running an alternator and water pump on one belt.
The dyno pull was before the addition of the Millerspeed underdrive system and Car Craft found 10 hp with the Millerspeed a 5,500 RPM. Also we did a bit more intake porting and carb tuning (at 12.8-12.9 A/F, it was a bit rich on the dyno), and I went 1 jet leaner on the secondaries. The RWHP, should now be a bit over 300.
Yes, he will need a solid lifter or maybe hydraulic roller cam to get there.
I was also able to get rid of the bog spots (~2,200-2,500) by reducing the squirters from 25F/28R to 21F/21R. Because I run a TKO600, these bog spots were just above my 5th-gear cruise RPM (~2,200) and getting rid of them was a real blessing when you get on it
in 5th on the freeway.
BTW, I would be suprised if a stock 650 dp outflows this modified 600. But without modification, the 650 is probably a good choice.