sorry guys, i'm jumpin in on this a little late. i'll be using the same setup as lantraluvr is looking at, pardon the ross pistons. full CNK setup with a haltech and stage 3 KORE clutch. i was hoping to boost 9psi on a daily basis, and up it for races, so with 300whp as an absolute MAX. but since everyone seems to agree that that is a bit close or over the threshold for the stock diff, and CNK/tigerlily/other cast pistons, i'll prolly make 250 whp my mew max. Red, is there any way to make forged pistons bearable to drive daily, or am i totally screwed if i wanna up the power later and still drive it almost everyday?

 

Forged pistons equipped engien can be drive dayly...just let the engine reach normal operating temperature before you step on the go pedal....
the other car i drive has forged pistons in it,it'S driven 6 months a year and so far the engien hasn't been taken appart since i built it 6 years ago
with proper use they will last very long

Denis

 

Well, The problem with forged is. You can go ANY PLACE. You get to sit in your driveway at midnight in the a blizzard waiting 15 mins for the engine to start to warm so you can drive off.

Cast or utentic, you can just go. and it wont be as damaging.

 

I'm sorry if you misunderstood. I was wondering what would I have to do after turboing my car. I never implied that I already have 300 hp.

Also, what do I have to to to "prep" the block up in preparation for the mad power?

 

With 8.5 or 9:1 pistons and good tuning on the Haltech you should be able to boost 15 PSI all day long on pump fuel. Assuming your turbo is upto it, 250-300 WHP. As long as you don't make too many abusive launches on a prepped track you should be OK with the differential.

With race condition / fuel 20-25 psi should be fine.