Rolla1990

Check the retaining nuts on the turbo that hold on the compressor/turbine wheels. If its loose, the shaft could be spinning freely and not letting it build boost.

RENR

illl chekc it out tomorow after work . im just gona pull the turbo out again

Bongnak

how about your blow off valve is it leaking what is it? oh and since its an internal is the acutator arm adjustable? cuz if it is then maybe it is screwed too far out and its releasing the gases without it closing it up first to allow boost. kinda get that i just woke up.

RENR

hhmm good thought ill chekc it out after work. i did extend it a bit thinking i didnt want to boost a lot i wanted to start low becuse i dont know what psi that wastegate it set too.maybe i set it too low.thanks ill check it out.

RENR

well i took apart the turbo and here are several findings. turns out the wastegate was hitting the block. keep in mind im using a t3 and an hf manifold. ok so the wastgate is hitting the block and i was able to trque down the manifold BUT it wasnt against the block properly.so when i took it apart again i noticed a smokey buildup between the manifold ports, the exhuast was escaping , very minimal because i cuould see no leak but i guess it did have an affect. second since the wastegate was against the block it kinda got twisted and wasnt perpendicular to the turbo it was at a slant and so it wasnt allowing the wastegate to work right. and finaly my ghetto rigged oil drain tube was starting to melt. so im kinda glad it didnt work because i cant imaginge what wouldve happend it i started dripping oil in the freeway. ok so this weekend im off to finda metal drain tube and put everything back together right this time.

i was curiuos to know also in what gear and at about what rpm does everyone start to build boost? this is my first time boosting so please dont flame me for being a dumb ***

mike 94sc2

1st gear I dont know cause as soon as I get on the gas hard the tires break loose. 2nd gear ~3000 then around 4000 the tires start breakin loose again. 3rd-5th anywhere from ~2800-3300 rpm.



Mike

RENR

yyyiiipppeeee!!!!!!!!!!!! i got my car to work today!!!!!!!!!! i put everything back right this time and i managed to build boost. im only boosted 4lbs. thats without the boost controller. ill hook that up tomorow and see if i can up that up to 7lbs. it does feel a bit faster but not that much. but then it is raining so i havent realy had a chance to push the car past 60. i cant beleive i actually turboed a freaking car! yippeee!!!!!


and boost on my car doesnt start until around 4000rpms, and stay steady all the way to 6500, is that normal to boost so late in the rpm range? im using a t3 with 60inlent / 48 exhaust and a d16a6?

ZexRex

damn dosent feel any faster? theyre might be something else wrong with the car, is your engine management working right?. A dseries with 7 lbs is fast and 12 lbs is pretty scary, hard to keep from breaking loose and sliding sideways. So you should feel 4 lbs on the butt-dyno.

customcoach

What kind of exhaust are you running? Restrictive exhaust will make your turbo lag(boost at higher RPM) also what motor are you running? that`s a large turbo for anything under about 2.2L and will have some lag.

RENR

it does feel a bit faster but nothing big. im gona try to crank up the boost today and give you guys an update. maybe it is my exhaust, its stock including the cat, i was going to get it redon but i didnt have enough cash. maybe next payday ill get it redone like 2.5 inch all the way. time to go play with my car, heee hee.