classicrock31

Both. I revved the motor and ran it and still no boost. I also did another thing: my back door neighbor has the exact same turbo setup I have (Greddy Td04...) and I drove his car. It boosts well enough. Anyway, last night I swapped out my turbo with his and it still does not allow any boost. I was barely able to hear the wastegate sound off on both turbos. Any suggestions or other diagnostics? Thanks

jinxy

take your downpipe off and see if you get boost.

idiot-stick

remove the outlet coupler, put a load on the engine with the ebrake and put it in gear. rev it up some (and feathering the clutch to create load) and have a friend put his hand over the turbo outlet (be careful) and see if it creates pressure. Ghetto, but it'll tell you if the turbo is moving air or not (which im sure it is)

classicrock31

I am not running a boost controller. I am running my vacuum line to my wg from my turbo. Is that enough vacuum source? Also I have the missing link connected between the MAP sensor & throttle body.

idiot-stick

vaccum routing is correct.

classicrock31

Are there any other last minute tests I can do to check why my turbo is not boosting?

96_civ

still sounds like a big leak somewhere. turbo should be fine. that guy at turbo city really knows his stuff. ive been there.

or how do you know you have no boost? do you have a boost guage? maybe its faulty?

matt

mahcivic

we had a problem on quicksilv1a civic when he had the stock exhuast and stock cat. we ran it open downpipe and it biult boost. try that

BoosTedZSix

what are you using as a filter?

classicrock31

I am running a stock cat. with a Tanabe full exhaust system. I will remove the cat and run a test pipe and see if it makes a difference. Also I have a boost gauge but it only reads vacuum as it cannot read boost because of the boost problem. There are no more leaks because I've already pressured the charge pipes, turbo, i/c, motor, etc. with air from a compressor and there were no leaks. The boost gauge is fully functional. I think I will be able to feel the car boosting if the gauge works or not. I am running an imitation HKS filter and a Greddy like charge pipe. But why would the filter matter?