I was wondering what kind of vacuum readings any of you were getting at idle. I am only getting 9mm hg, when it used to get around 18. I think I have a leak somewhere but want to see what everyone else has who is running bigger single turbos. Also I was wondering if you can use the Haltech tps and wire it to the stock ecu. I have an 88 and it has the narrow band tps which hits full throttle way to early. I am using an AFC to tune fuel for now and need some way of not having the fuel come on too early.

 

Sounds like a leak...
Changing turbos should not affect idle vacuum readings that drastically.


-Ted