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4g63 boost


dc90ms
01-03-2008, 07:32 PM
i have a stock 90 4g63t motor what can i boost it to safely

Thor06
01-03-2008, 10:40 PM
Assuming completely stock, I wouldnt push it past 14-15 pounds.

Sleepr awd
01-04-2008, 11:23 AM
that is IF the motor is in good condition and your fuel is sufficient.

gsxeclipse97
01-05-2008, 11:55 AM
15 psi is safer on a 2g than 1g due to the fact that we have more fuel pressure. I wouldn't go past 13 to be safe at least until you have the fuel to support it.

kjewer1
01-06-2008, 04:06 AM
The change in fuel pressure between the two models is irrelevant. The resulting AFR is what matters, and they should both be the same. The 2g has a bigger fuel pump however, which is noteworthy.

The original question is somewhat vague. The motor itself can take 35 psi, or whatever boost it takes to make ~550 whp. The question was mostly likely more about what the setup as a whole can run for boost. Just a pet peeve of mine...

92talontsiawd
01-11-2008, 12:46 PM
my motor isnt realy built to much, just has a brand new head on it metal head gasket new water pump, front mounted IC boost conroller new stock turbo and intake.. and im running about 18-20psi and it handles pretty good

flip888
01-29-2008, 01:16 AM
Ive heard of the stock injectors pushing 250whp with a 14b. I dont know much about that car though.

Sleepr awd
01-29-2008, 10:24 AM
How much fuel/knock do you have because that is going to be your biggest hinderance.
And 14bs will run 12s with time and experience

george536
01-29-2008, 03:28 PM
I wouldnt push it too much, cars are different. I would get a logger if you dont already have one and just log it and see how your doing.

0-60IN2
01-30-2008, 12:50 AM
I went to 16 psi lik nothign on my 1g?And it ran strong fro like 3 years and then sold it.

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