Alrighty.
89 LeBaron GTS, Turbo II 5 speed a555. 2.5" mandrel bent full exhaust, k&n drop in filter, MBC more or less set to 12psi.
Anyway, so In 1st gear I get the full 12psi.
Second, third, and fourth gear, shifting at almost redline, I get 6psi. Occasionally It will spike to 7, 8, 9, 10, but not often.
I don't understand this!
The car should be so quick, it takes off like a raped ape in 1st gear but as soon as 2nd hits, Zzzzzzzz.
Again, are you sure you MBC is good?
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Fiiiiiiine I'll buy a dawes 2 stage this weekend.
No, I'm not sure it's good but I don't see how it could be bad.
Why kind of MBC are you using? How do you have it plumbed?
Mike Marra
1986 Plymouth Horizon GLMF "The Contraption" < entertaining sponsorship offers
Project Log:
http://www.turbo-mopar.com/forums/showthread.php?69708-The-Contraption-2013-14&highlight=
Thats the problem with boost controllers. Or maybe the vac lines or something else but I know that in different gears I'll get a different boost by a bit and when I'm in a higher gear and at the right rpm for max boost and floor it it will spike to cutout but only give me a steady 10.
Boost leak?
My comment from the last thread still stands
-Gary Mazzone-
1986 GLHS #168
Well we've traced everything and it all works, so it leaves your homemade MBC as the fault due to process of elimination,Originally Posted by Big_P
He made one and he has it installed properly.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
It sounds like it is not venting properly, and the wastegate is hanging open.
Mike Marra
1986 Plymouth Horizon GLMF "The Contraption" < entertaining sponsorship offers
Project Log:
http://www.turbo-mopar.com/forums/showthread.php?69708-The-Contraption-2013-14&highlight=
Well if he hooks it up to vacuum, he gets a rock solid 6 psi, hence the guess at his homemade MBC is bad.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Yeah, it's a homemade MBC. I believe I found an air leak in it. I fixed it and adjusted it.
I have it set so I get 17psi in 1st gear, 2nd I get up to 15, 3rd 10psi with spikes to 15.
So, not bad. I can live with that. It can still break free the tires in 2nd gear from a roll. Probably a high 14 sec car?
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