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740 turbo loses power when spooling 700 1988

posted by  quatrobricks on  Mon Jul 11 16:28 CST 2005
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I have a '88 760 sedan, just rolled 200,000. When i drive the car and dont let the turbo kick in, all is fine, but once i let the turbo start to spool up, immidiate loss of power. if i back off and let the turbo slow, car goes right back to normal. I lowered the boost to around 4psi and no change. I have been running the car at around 12psi for about a year with no problems (adjusted with the wastegate). Any advice? Hopefully solutions?

Donnie, '64 122s, '86 760 TW, '88 760 T, '05 S40 T5.






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