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Turbo loosing psi after fast drive

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Knightrous
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Re: Turbo loosing psi after fast drive 2019/05/30 19:46:22 (permalink)
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Matts_SW20
 
I thought TVIS was only a 4A thing. This could be a potential cause. I've ran diagnostics on the car and it hasn't recorded a knock code but it could be that maybe? Such a frustrating issue. 

Gen 1 & 2 3SG motors featured TVIS. Gen 3 dropped it (Like Gen 3 4AG's)

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Matts_SW20
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Re: Turbo loosing psi after fast drive 2019/05/30 21:16:38 (permalink)
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So if I loose 4 runners would that necessarily decrease boost pressure by turbo? 

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5SGTE
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Re: Turbo loosing psi after fast drive 2019/05/31 11:08:01 (permalink)
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You done an intake pressure test?
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feral4mr2
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Re: Turbo loosing psi after fast drive 2019/05/31 12:50:23 (permalink)
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Matts_SW20
So if I loose 4 runners would that necessarily decrease boost pressure by turbo? 


No.  The turbo and wastegate determine the amount of boost seen at the manifold.  Piping as well given if there's a leak you'll see less at the manifold. 
post edited by feral4mr2 - 2019/05/31 12:57:33

if it's not blown, it sucks
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Matts_SW20
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Re: Turbo loosing psi after fast drive 2019/06/06 21:33:43 (permalink)
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5SGTE
You done an intake pressure test?

I have not, I'm installing a CT20b this weekend. If the problem persists I'll be looking into this. 
feral4mr2
Matts_SW20
So if I loose 4 runners would that necessarily decrease boost pressure by turbo? 

No.  The turbo and wastegate determine the amount of boost seen at the manifold.  Piping as well given if there's a leak you'll see less at the manifold. 

Yea I thought so. I'll change the turbo and see if I still have this phantom boost leak

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