318 Build? Help!

shittyslant6 said

Well, it's just desktop dyno 5, I believe and I know it's within 8-12% accuracy.
I think it will make that much because it's going to spin to 7000+, and surprisingly the speedmasters flow exceptionally well for what they are.

But pertaining to this thread; even if it does not make the calculated power the program says; this combo at LEAST make more than enough torque and horsepower for OP's similar build to have fun with.

Click to expand...

410 lbs-ft ain't impossible it's 1.29 lbs-ft per cid which is kind of on the high side for that level of a build 370-390 lbs-ft is a more likely number (1.16-1.23 tq:cid).

Main problem I see with that desktop dyno prediction is what's happing after 4500 rpms highly doubt gonna carry the torque up that high both peaks seem around 1000 rpms too high.

Say the 318 makes peak power 1000 rpms lower 6000 rpms which is probably on the high side with the cam you got and 1.2 lbs -ft per cid = 382 tq.

382 x .9 x 6000 / 5252 = 393 hp