some restriction in the exhaust maybe?? when i took down my ancient original exhaust (which i ran for a couple months) i found wrenches in that Mo'fo.
*TRUE STORY*
Re: 4k RPM turbo lag?!?!
some restriction in the exhaust maybe?? when i took down my ancient original exhaust (which i ran for a couple months) i found wrenches in that Mo'fo.
*TRUE STORY*
Originally Posted by RATM
Re: 4k RPM turbo lag?!?!
Sounds like your wastegate's stuck open.
I always thought of it as a cheap G-meter. If it comes on, you're approaching your tire's limits. Adjust fluid level to according to tire grip capacity.
Re: 4k RPM turbo lag?!?!
Wastegate stuck open would never make anything.
1988 white 7MGTE(Current) est 380 rwhp.
1987 red supra turbo shell(Parts car)
1983 supra 5mge(Sold)
Driftmotion DP-Driftmotion catback-CT2657 16+ PSI-Greddy profec bspec 2-AEM UEGO-Walbro400-AFPR-560cc/Lex-Driftmotion IC hardpipe-HKS SSQ-Apexi intake-KYB Excel GR2-Hankook Ventus RS3 225/60/16
In the makings, HX35 turbo setup. See how far I can push it, shooting for minimum 450 rwhp.
Re: 4k RPM turbo lag?!?!
The wastegate may not exactly be completely open. The seat where the gate sits could be worn out. This would not allow the gate to seal properly. I would be checking this first off.
Wait, you mean you enjoy having a vehicle that's nice looking, luxurious, and practical? Blasphemy! Rough riding MA70 with a stiff clutch is what you should have.
Pre turbo exhaust leak?
Build Thread http://www.supramania.com/forums/showthread.php?t=65052
I have a ps pump, light retractor relay and dark blue headlight covers for sale, pm me.
Re: 4k RPM turbo lag?!?!
If the gate was stuck slightly open, you wouldn't get the BAM effect he's saying. When he says BAM I'm thinking from not going anywhere to full boost haulin ass. A slightly stuck open would cause the PSI to crawl up.
1988 white 7MGTE(Current) est 380 rwhp.
1987 red supra turbo shell(Parts car)
1983 supra 5mge(Sold)
Driftmotion DP-Driftmotion catback-CT2657 16+ PSI-Greddy profec bspec 2-AEM UEGO-Walbro400-AFPR-560cc/Lex-Driftmotion IC hardpipe-HKS SSQ-Apexi intake-KYB Excel GR2-Hankook Ventus RS3 225/60/16
In the makings, HX35 turbo setup. See how far I can push it, shooting for minimum 450 rwhp.
Re: 4k RPM turbo lag?!?!
check compression
Re: 4k RPM turbo lag?!?!
I had that the exact same issue with an upgraded ct-26 60-1. I had 3 things going on so I dont know which one it was. But had a code 52 which retarded the timing, exhaust manifold leak, busted intercooler cooupling(boostleak).
Re: 4k RPM turbo lag?!?!
Well yesterday I had most of it apart to inspect it. And I noticed that there was some damage on the vacuum part of the wastegate actuator. But I also noticed that the arm itself isn't completely dirty, so it is showing signs of it moving. And another thing I noticed was half a court throughout all my intake system, in the throttle body, in the intercoolers and in the intake side of the compressor housing. I'm thinking PCV went bad.
Re: 4k RPM turbo lag?!?!
And also, my timing is fine. spec at idle is 10 btdc, I'm at 15 so timing isn't an issue.
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