99mongooSS

iTrader: (4)

Exactly what it says...I am building a 347 and I want to hit it with a 225-300 shot of spray and I want to know what are the best pistons for nitrous?

99mongooSS

iTrader: (4)

The product info on all pistons say that they are suited for nitrous but the mahle's and Diamond's say small nitrous applications. The Wiseco's and the JE's just ay suited for nitrous. But no one has a designated nitrous piston below 13:1 compression, And Im trying to stay in the high 11.5:1-to low 12:1 compression area. Which the 4 above all are.

BLK02WS6

iTrader: (2)

Over 260 nitrous passes on my Wiseco's... all with pump gas and a 200 to 250 shot... still runs good

JL ws-6

iTrader: (50)

If you want to keep the compression as low as you are talking I would suggest calling Diamond and having a set made for what you want to do. An off the shelf piston may not suit what you are looking to do.

Robert56

iTrader: (2)

I choose Wiseco 8cc rev dome, and run a 11.25;1 compression. It's good to 1000rwhp.
Robert

Z-RATED94

iTrader: (6)

So I'm sure the poster would like to know the rough cost of said pistons, right? I know I would.

Ray@Nitrous Outlet

I am running custom Ross pistons..16-18cc dish, (can't remember exact) 12.2:1 static CR

They were around $6-700 and were spec'd for a <300> shot

99mongooSS

iTrader: (4)

those are on what bore?

blueeyeddevil141

iTrader: (5)

I have a set of Ross Racing -4cc's.

99mongooSS

iTrader: (4)

I believe with a 59-62cc combustion chamber and the flat top pistons I could achieve 11.5-12.0:1 compression. I have used a few calculators as well as spoke to people with the pistons. Ive done my research on the pistons I just need to know which ones are better in the publics opinion. I am dead serious about not blowing this motor up and I want everything to be right.

JL ws-6

iTrader: (50)

Understand that you'll only be able to spray so much before lifting the heads will be a concern, etc.etc. That being said, you also need to work your way up to it, not just put a 300 to it and see what happens.

Personally I would put a set of coated gas ported diamond pistons in it with a recessed top ring land.

99mongooSS

iTrader: (4)

I was spraying a 150 shot on my old motor... So, 75 horsepower more with head studs and a Forged motor...I think it'll be fine.

jmill96Z

iTrader: (3)

I voted for what I have. Mahle -4's. I'm happy, but I'll have to wait on the 300 shot results for next year.

Emoney97ss

iTrader: (42)

i called texas-speed about a set of diamonds, with -2cc valve reliefs but would keep the compression around stock, and they wanted something like 510... so maybe you could just call someone up...

Cliff

iTrader: (19)

I believe this is sound advise.

Robert56

iTrader: (2)

If going 300 or behond you can minimize the lifting of heads issue. How? Run the ARP L19 head studs; they have 40% more clamping force over standard ARP head studs. Expensive, but well worth it imo. Some guys live a nice long life at 300 without lifting of heads. Myself, I haven't got a truck load of 300hp runs, but so far with the L19s and good tune, no problems.
Robert

JL ws-6

iTrader: (50)

Robert you mean the L19 stuff I assume...........

Robert56

iTrader: (2)

Yes, , self policing works so well on our site, thanks.
Robert

JL ws-6

iTrader: (50)

I fugured that... I just didn't want anyone to get confused on here.

Personally I had L19 main studs, head studs and rod bolts used in my motor

Ryne @ CMS

iTrader: (10)

honestly i have run wiseco's and love them, so i vote wiseco