8psiXA

what brand are they

metal112524

So are there rods coming too?

itsme

RPi is da brand and they're custom made forged turbo pistons and pins..........

rollhard

Rods are on the way. We should have rods in 2 weeks. The pistons are ours private labeled and made to our specs. Feel free to find out more about our company at www.raceprecision.com or come by our office. Some of you have already stopped by and seen the kind of cars we work on and the quality of work.

8psiXA

ok.. and im not saying you dont do qualitly work.. i believe you do.. plus you have like the most power with the greddy kit...

rollhard

If you get a chance, let me know who told you they can make the piston set for you at the $400-500 range. Maybe I can work something out with them.

fusionscion

hey eloy i emailed u a question on pricing for the internals... could ya get back to me? thanks

rollhard

Hey. I didnt get an email from you. Did you email to eloy@raceprecision.com ?

itsme

hey Eloy so why did yall go with a 9.5:1 compression piston instead of a 8.5:1 compression piston?

rollhard

Its all in the mathematics of what we want to do with this displacement engine, set up, etc. At 8.5:1, it would be too low for what we want to do.

hotbox05

hmm. if tey were standard comp i'd get em. gonna go supercharged so no way to go monster boost that would need these pistons. do you sell the rods and pins seperate?

rollhard

The rods will be sold separate. I will have to check on the pins however. Even though your are going supercharged, I would still lower the compression, with a head gasket, pistons or whatever. The stock compression is very high for any kind of fi.

hotbox05

yeah but with the same boost as was built for the standard compression then bumping it down to 9.5 i'd lose power. gain reliability and longevity but lose a ton of ponies.

rollhard

I hear ya. You might want to talk to 8psiXA. He can get them for like $425.

TYRE_BOX

the whole idea on droping comprecion is to up the boost so you won't loose the HP. Ive been looking into swaping out and making new pulleys for the greddy blower to spin it faster. The only problem is finding a new blower belt. I talked to a gentalman at magna who said thay have used that same blower chassie and it maxes out at about 17psi. 9.5 compression with rolhard internal and 17 psi from the blower and a xb will be a hand full. but im looking foward to it

rollhard

If you know the size of the belt you need, in most cases you can go to an auto parts supplier and match up to what you need. 17psi on an SC will make monstor torque.

hotbox05

oh i know all about how it works. i also plan on doing whatever but i need to be legal so i wouldn't be able to modify the greddy prepared emanage.... to tunes it. and i'm going to doubt the 17psi would be that easy to get out of their blower.

rollhard

I thought the Greddy SC kit was NOt street legal to begin with.

hotbox05

it's carb pending. they don't spend time and the money for the application process unles it will pass so it's just red tape til legal.

RTon20s

Where are you getting your info from Darren? When I talked to Greddy at SEMA they said they were considering going for CARB excemption on the turbo, but weren't even considering the supercharger.