Toyota MR2 Message Board - View Single Post - 3S-GTE/Turbo MK1 Engine Turbo Research Assistance

IDon'tKnow · 09-23-2009, 09:44 PM

I'm not really trying to blow the engine up but I had figured that could safely run at 8psi. I thought the compression ratio was 9.4:1 in the early 4AGE's?.......

I'm not really interested in pulling the motor to beef up the bottom end. If I'm going to go through the trouble of pulling the motor out I'm gonna put a 20V back in.

I've seen a few Honda B18C motors running 12-14psi on factory internals with no problems and those are 10:1 compression ratio.

Hmmm 3-5psi, something to consider I suppose. That just seems like too conservative of a number.

09-23-2009, 09:44 PM	#3 (permalink)
IDon'tKnow but I can find out. Join Date: Sep 2009 Location: DC Posts: 392 Thanks: 6 Thanked 6 Times in 5 Posts iTrader Rating: (1/100% )	I'm not really trying to blow the engine up but I had figured that could safely run at 8psi. I thought the compression ratio was 9.4:1 in the early 4AGE's?....... I'm not really interested in pulling the motor to beef up the bottom end. If I'm going to go through the trouble of pulling the motor out I'm gonna put a 20V back in. I've seen a few Honda B18C motors running 12-14psi on factory internals with no problems and those are 10:1 compression ratio. Hmmm 3-5psi, something to consider I suppose. That just seems like too conservative of a number.