LT1-LT4 Modifications 1993-97 Gen II Small Block V8

1994 prochargered corvette problems

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Old 08-31-2008, 08:37 PM
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Default 1994 prochargered corvette problems

i have a 1994 corvette and we put a procharger on it now when we start it and rev it it has oil coming out of the cap and blows the dipstick out can some one help me on what to do. thanks
Old 08-31-2008, 08:39 PM
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Sounds like blow by. Might be worn rings causing pressure to enter the block. Check the PCV system, if your lucky, maybe its clogged.
Old 08-31-2008, 08:39 PM
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Sounds like you have a serious PCV problem.
Old 08-31-2008, 08:41 PM
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^ stated above definately a problem there
Old 08-31-2008, 08:48 PM
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it has 3 dyno pulls on it
Old 08-31-2008, 10:19 PM
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Did you relocate the pcv from the throttle body to the air filter? If not, you need to.
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Old 08-31-2008, 10:25 PM
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Originally Posted by vk4444
it has 3 dyno pulls on it
Should've told us the motor was brand new as well

I'd follow Sliver's advice and see how things fair.
Old 08-31-2008, 10:41 PM
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sorry the motors not brand new the motor has 88000 miles on it it has stock heads just ported, custom cam, throttle body, it has 3 dyno pulls on it with the blower and it blows the dipstick out the guy that did the install put a hose going from the oil cap going back into the dipstick tube and that did nothing i dont under stand why he did that. im just trying to figure it out i fired that guy.
Old 09-01-2008, 12:20 AM
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Originally Posted by vk4444
sorry the motors not brand new the motor has 88000 miles on it it has stock heads just ported, custom cam, throttle body, it has 3 dyno pulls on it with the blower and it blows the dipstick out the guy that did the install put a hose going from the oil cap going back into the dipstick tube and that did nothing i dont under stand why he did that. im just trying to figure it out i fired that guy.
Then it's as originally said, it has blow by from the mileage on it. If you put too much boost through it and the rings were still semi-good, then that could easily have blown em out.
Old 09-01-2008, 01:08 AM
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Been there, done that, It's a cracked ring land! Don't mean to be negative, but stock lt1's don't like boost. They are more nitrous friendly. I had a p1sc on a stock lt1 w/ 30000k it lasted 5 or 6k before #8 ringland cracked, causing excessive blowby = dipstick popping out of the tube on a wot run. Still made 426whp and 425tq on 7psi intercooled!



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