bigdcustoms

iTrader: (1)

just wanted some input on this combo that i am building, hp numbers or different part suggestions would be helpful, maybe 1/4 mile projections... im looking to make 500 flywheel hp or 400 rwhp...

-4 bolt block with full eagle forged internals (9.7 compression)
-AFR 195 heads (75cc) 2.05/1.60 valves
-comp cam hydralic roller .520/.540 lift with aluminum 1.5 rockers
-stud girdle for rockers
-holley street dominator intake (idle-7200 rpm operating range)
-either a holley 750 vacum or double pumper carb???? not sure which one yet
-1 5/8 hooker headers
-700r4 with 2800 stall and 4.11 rear gears

jmm98LS1

iTrader: (28)

Need to know cam duration....lift tells us nothing. Just taking a guess from the lift #'s, is it a comp xr288hr (236/242)? If so, that should get ya over 500fwhp with those AFR's. I'd run a 750cfm double pumper and 1 3/4" headers if you can, might also look at 1.6 rockers.

bigdcustoms

iTrader: (1)

yea thats the duration..and im just gonna use these aluminum rockers for now, that way i can keep the build under 4500$$

Villain281H

iTrader: (5)

What is the weight of the car you'll be using this in?I'd say mid to low 11s depending on traction and weight. I agree the 1-3/4" headers, a dual 3" exhaust and 750 dp carb should be what you use on this.

Derek

bigdcustoms

iTrader: (1)

the car should way about 3600-3700 puonds..and i have a dual 2.5 inch exhaust...thanks

Villain281H

iTrader: (5)

In that case, I'd guess mid 11's. Believe me you could stand to gain some power with a 3" dual exhaust (15-20 rwhp).

Derek

406 'velle

hey hows it going, im doing a similar build with a 406. what fuel system are you going to run? i've been running a holley red pump- way to weak for this motor im sure, but im not sure what pump, hoses, regulator, etc i should be running. im aiming to make ~450 fwhp. any advice anyone can offer on fuel systems would be great, thanks guys

edcmat-l1

iTrader: (10)

More compression. More camshaft. Bigger exhaust. Ditch the stud girdle. You wont need it. Hydraulic roller springs dont have enough spring pressure to cause the stud deflection that girdles are supposed to prevent. We're running hyd rollers right up to .650 lift with nothing but good studs and rollers rockers. Hell, for that matter, we run solid rollers over .700 lift without girdles.

bigdcustoms

iTrader: (1)

stud girdles are there just for protection...later down the road im gonna put a 600 llift cam in...right now I have a summit fuel pump but im gonna upgrade to an electric fuel pump when get ready to use nitrous...

rhamm1320

Here is the link to the 1/4 and 1/8 mile et calculator - I did not know what driver weight to input. The simulated dyno run looks like a really good combo. Nice torque curve and plenty of power.

http://www.virtualengine2000.com/Calculator.htm

edcmat-l1

iTrader: (10)

I know what they're there for. My point is its a waste of money. Regardless what cam you run. Even the .600 lift one you'll install later. Last vehicle I worked on that ran a stud girdle was an alcohol funny car. Even that could have used a shaft mounted system instead. It was an outdated nostalgia car.

bigdcustoms

iTrader: (1)

well they were only like 100 bucks..so its not that serious..any other thoughts in the whole motor...

LSWaaa?

sounds like you have a great setup. are you going with th 700R4 because you want OD?