sw07gt

With forged steel cobra crankshaft, manley H beam rods, forged pistons, .020 oversize moly rings, federal mogal main and rod bearings do you think I will safely be able to run 500 rwhp?

Numby

Who makes forged pistons for our car. i couldnt seem to find any.

sw07gt

blowbyracing.com
They have a forged rotating assembly package for sale.

retfr8flyr

With those components you should be good to about 650 rwhp without any problems.

sw07gt

Thanks. I was worried because some people have been talking about blowing their engines. So when I heard that I did some online shopping and found these forged internals.

retfr8flyr

Just make sure you get the parts balanced when you do the build.

4.6L Shadow

what do you mean by balanced?

androdz

You can prob hold 700 hp w/o problems depending on ur tune. More times than not a tune is what blows up ur engine not the psi/hp output. It is usually detonation caused by too much timing in the tune. The tune is everything on these cars and a good tuner should be the most important investment you make in your car if you start modding imo. It is the one place you don't want to try to skimp on or DIY.

Timing is what gets the car really moving so that's where most novice tuners will turn up the heat to get good dyno numbers and it is just plain stupid. Once you start pushing 16degrees+ on pump gas, it is a recipe for disaster.

Octane is imporant with timing and many guys make the stupid mistake of thinking any race gas is good enough. Since most guys still have cats, they put in 102 octane and then think they are safe for 24+ of timing and then can't understand when the motor lets go. At those timing levels 24+ 102 doesn't cut it either and you want to be running 110+ octane at least. You have to run c16 for that. c16 is 118 octane.

So these are important facts you should discuss with your tuner. This is the reason why 99% custom tunes are 'race tunes' and 'street tunes'. It would be to expensive to run c16 on the street everyday so usualy a good tuner will give you a street tune with very little timing (<15degrees) to run on 91 or 93 which will make a lot less power with the lower timing level but will be safe. Then the 'race tune' will have your big power numbers with the extra timing for use on the good gas. Also remember that c16 has lead in it which in turn screws up your sensors, 102 octane doesn't have lead.

If your tuner looks at you weird when you discuss these timing and octane issues or tells you octane and timing aren't a big deal - then run with your wallet and engine intact.

Att. Andrew

PS: I have heard nothing but bad things about the support at BBR.

spyder7724

i've heard the same thing about BBR. when i tried talking to them at bradenton the guy couldn't answer any of my questions about cams....and they make the thing. for forged pistons also look at JE and manley. both have a direct replacement and dish versions for the 3V engines.

retfr8flyr

Just what it sounds like. The speed shop will weigh all the rods and pistons and modify them so each assembly weights the same. This allows the engine to rev with less possible vibration.