Is 10 lbs getting greedy on stock compression?

[jermzfree]

I want to know if 10 lbs is safe to boost on from 1-6th gear. I have stock compression (10.5-1) and have MTC turbo 83mm pistions, and water injection. Currently I have a 6 lb spring, and am just debating if I should go to 8 lbs or 10 lbs. (Rcc stage 1 gen 1)

Thanks for all input

 

[MLSDUKE1]

I've always heard boosting a bored motor is asking for catastrophy, just my :2cents:

 

[jermzfree]

I have heard you can blow a head gasket much easier w/ a bored engine. I hope that is not the case for lower boost bikes like mine. The engine does have heavy duty head studs.

 

[Quiksilver]

Ive heard going over 8lbs of boost on stock compression and pump gas isn't a good combo I have a stage 1 at 7 pounds and I'm at the limit of the "safe zone". A water methanol kit or intercooler would allow more boost. I was told to upgrade internals if going over 8lbs of boost.

 

[dadofthree]

I heard you should PM Richard at RCC or Frank at POWERHOUSE

 

[GIXERHP]

Water injection and a good tune!
As well as a good Air Fuel gauge!

 

[OZBooster]

tuned well with your water inj you should be fine

i have a 83mm bore in my race bike , and run it to low 20 psi with just the studs and cometic gasket, second motor has o ring copper gasket and receiver groove setup and had that to 28 psi
just a matter of controlling cyl pressures , big spikes from detonation will hurt just about any gasket

 

[jermzfree]

20 lbs on 83mm? Guess I have a good safety margin then