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Is my wg 2 small?

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Old Jun 24, 2009 | 03:27 PM
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Default Is my wg 2 small?

This is what I have, 99ls1 t76 with 38mm turbo smart wg. On the dyno it put down 464rwhp, at sea level 100 deg weather and 10psi. After I got it back home, its boosting to 15psi on the street and killing my timing and falling on its face. I have swap to a 5 psi spring, and the same thing happend, does this now mean my wg is to small??
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Old Jun 24, 2009 | 05:36 PM
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Assuming you have plumbed it up correctly, if boost is rising well beyond what is expected, then it could be too small.
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Old Jun 24, 2009 | 06:06 PM
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Originally Posted by lbfd48
This is what I have, 99ls1 t76 with 38mm turbo smart wg. On the dyno it put down 464rwhp, at sea level 100 deg weather and 10psi. After I got it back home, its boosting to 15psi on the street and killing my timing and falling on its face. I have swap to a 5 psi spring, and the same thing happend, does this now mean my wg is to small??

Well if it was working before then quit I would say something else is wrong. I run a 38mm ultra & I can get it down to 10 lbs with a tc 78. But maybe my plumbing is more optimal?
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Old Jun 27, 2009 | 08:49 AM
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Thanks
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Old Jun 27, 2009 | 12:48 PM
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Was the dyno a non loading unit? Dynojet?
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Old Jun 27, 2009 | 04:23 PM
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Yes, it was a Dynojet!
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Old Jun 27, 2009 | 05:34 PM
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If it was non loading it is normal for the car to make more boost on the street(only a few pounds usually) and that could be amplified by the fact the gate is too small or placement of it is not optimal.
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Old Jun 27, 2009 | 07:21 PM
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yes its too small
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