Thread: how much power should my combo make?

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Originally Posted by cutlass389

Number 1, check the flow numbers on your heads. Single pattern cams are passe` nowadays. Number 2, when you widen the lobe separation angle, you will lose torque below 3500 and about 5% overall on average. Cam companies routinely sell wide LSA's as a compromise for street manners. 236 degrees is about where you want to be. Have you looked into a stroker crank or is it too late?

yeah it's too late for the stroker, I wanted to go with that to begin with but couldn't afford the extra cost....stroker kit/machine work

I'm pretty sure this engine will have more power than I need anyway, I just want it to sound good too. This is my first performance engine so maybe next time I will go a little bigger

I have a 98 f-150 with suicide doors/ bodydrop/ all shaved that has the 4.2L v6 in it....and I have a 391fe truck engine sitting in my shop so I might build that one up and stick it in the f150 later on.

here is my setup

350 .060 over, 4-bolt mains
Stock crank
Flattop pistons 14cc reliefs
64cc chamber 2.02/160 170cc runner cast heads with a little work
Edlebrock Performer RPM intake
Holley 650 DualFeed
Lunati 60102 VooDoo cam 219/227 .468/489 112 lsa
BorgWarner Super t-10 4-speed, 3.73 posi rear
Flowtech Headers, 2.5inch exhaust with Flowmaster Delta Force 40 2chambers that stop just before the rearend.

Here is a video of how it sounds, idle is still a tad high *900-100 rpm*, on a cold day its idles at 650-700 and sounds great, theres a little distortion because of the camera i used but this car sounds awesome, a little loud so the neighbors hate me ;p

http://www.filefactory.com/?d95f80

Originally Posted by HellCaminoKid

here is my setup

350 .060 over, 4-bolt mains
Stock crank
Flattop pistons 14cc reliefs
64cc chamber 2.02/160 170cc runner cast heads with a little work
Edlebrock Performer RPM intake
Holley 650 DualFeed
Lunati 60102 VooDoo cam 219/227 .468/489 112 lsa
BorgWarner Super t-10 4-speed, 3.73 posi rear
Flowtech Headers, 2.5inch exhaust with Flowmaster Delta Force 40 2chambers that stop just before the rearend.

Here is a video of how it sounds, idle is still a tad high *900-100 rpm*, on a cold day its idles at 650-700 and sounds great, theres a little distortion because of the camera i used but this car sounds awesome, a little loud so the neighbors hate me ;p

http://www.filefactory.com/?d95f80

Cool, that sounds great The cam I'm going with should be a little rougher than that since it's 230/236 487/490 110 lsa so I should be happy with it. Thanks for the clip! by the way what's your compression? Have you ran it at the track yet?

10.77:1, planning on running it at least once this summer.... its a daily driver so I try not to break it to often. car has awesome torque.... scrapped two posi units already.... finallly broke down and had something built for it.

cool
what octane gas do you have to run in that?

well i tried straight 93... get pretty bad detonation after shutting it off... runs fine with 94 and great with 94 + Formula104 Octane boost