10.7 CR
Protopline vortecs
350 bored .030 over
CC XE268H
edelbrock performer

full weight 87' irocz.......

im pushing as much compression as I could w/o hurting combustion.....i have some used parts (block, rods, crank)

i didnt' cheap out on anything important, heads, intake, cloyes true roller, 1 5/8 headers....crank is stock cast, block is used, both in good condition, both were measured and within tolerances....rods are low milage 94 LT1 rods.....im looking to shift 5200-5500....

im 18, this is my first engine build, ive done it all over my bosses house in his garage....hes been doing this since he was like 12....he's telling me 400HP is possible with that intake/cam/CR combo....whats anybody think from previous experience and such....i figure 1HP per cubic inch is very easy to hit....if the intake can flow enough and the cam is right....400 could be close...maybe 375-385....enough to make a C5 sweat when he looks and sees im still next to him in 3rd.....im thinking 400lbs of torque.....

it's been 6 months of parts collecting and learning....im hyped....im already saving up for a T56....

 

You are on the right path, young Jedi StealthElephant.

 

1 hp per cubic inch is like u said easy to hit, This guy I work wid has a 454 pushing well over 800 horses, he said on his next one he builds up he wants another 454 and beat me 100 bucks that he can have it over 1000 horse's with out any supercharger or turbo. Just straight raw carbuerated engine power, he used to be a mechanic in the air force, and he's been building engines for over 30 years now, so I think he knows what he's talking about, he Told me once I get my 350, that if I pay him 250 bucks he will take it to a machine shop and bring it back in about a week, and it will be pushing around 500 hp just the carb engine and tranny. I think I might take him up on that.

 

I want to build an engine up myself, most likely my first will be a 350. The guy I work with said he can get ahold of an old of an old military hummer engine, he said it's a inline 6 with 8 vavles per cyclinder, he told me it pushes 600-700 hps... I think it might have been the alcohol telling me the hps.

 

I have always read that it is easier for a 454 to make 1HP per cube then a 350 though...

 

remember we are all rwd vehciles and that is how we loose most of our hp and torque, where as fwd doesn't loose as much as we do. Plus they have they weight of the engine sittin' on there front wheels.

 

Umm, actually a FWD vehicle wont retain anymore power through the driveline. And the fact that the engine is over the tires that spin doesnt mean too much. Remember when you accelerate the cars momentum shifts alot of the weight to the rear. This is what gives a RWD car its ability to hook. A FWD car has the opposite affect and the weight is transfered away from the drive wheels!

 

Never really thought of that... Good point. :hail:

 

I think the Hummers were all 6.5 diesels. And 8 valves per cylinder? I don't think so.

 

yeah I wasn't so sure about that, but he told me he knew where one was at. But yeah, he kinda runs at the mouth after a few. Old Tymers just can't hang wid me.:lala: :lala: :lala: :lala: :lala: :lala:

 

Mid 13's is all your going to get for a guess. Without having some chassis dyno numbers and full race weight with driver, a guess is just a guess. If you want to know what it will run, take it to the track.

 

Has this engine been started yet?

If you really have 10.7 static compression, I see no way you gonna get that thing to run without pinging except on race gas. With 10.7 static compression and that small cam you are at like 8.9 dynamic compression and that is with iron heads....most everyone trying to run over 8.3-8.5or so, even with optimum quench and a good cylinder design, have detonation problems on 93 octane.