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ewave ewave is offline
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Join Date: Jan 2003
Location: Dallas Texas USA
Posts: 486
All this stuff is very cool Wayne! I can't thank you enough for posting it.

I have a question/comment about the lose hose coupling from the low speed turbo boost:

If a coupling like this was lose on my 930, the car wouldn't run: The air is metered BEFORE the turbo on a 930, so with out boost this would appear as a huge vacuum leak, and with boost, the car would try to run overly rich.

Since your car is running, the air flow must be measured somewhere AFTER the turbo. I can't tell from the photos where, or how this is being done. Can you?

Also on the twin turbo design, is there also a valve in the exhaust system that directs the exhaust to one of the two turbos- Or are they both always running receiving pressurized exhaust?

And finally, is there condition when both turbos provide pressurized air to the engine? If so, then when that hose was lose from on the low RPM engine turbo, pressurized air would have been leaking out there from the high RPM engine turbo when under high speed boost?

I'd love to see a diagram of how this is set up on a 959. Lots of unanswered questions in my mind!!!

Thanks again for all the great photos and commentary. They are the high point of my day.
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Paul
2001 CLK55 AMG, 1987 911 Turbo Look, 1997 Viper GTS.
Old 10-24-2007, 07:54 AM
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