Post by
BlackZenki82 »
https://forums.nicoclub.com/blackzenki82-u103092.html
Sun Sep 06, 2009 8:30 am
SO, i did a lot of work yesterday... doing turbo works.... hopefully this solves my problems for a while cause pulling turbo/mani setups out of two cars SUCKS... especially a big T28 in a complete engine bay (AC lines, PS line etc)...
anyways, i think i found my exhaust leak.... no wonder my car was so sluggish getting into boost...
comparison shot, S15 Spec R comp housing on left, GTIR comp housing on right... unfortunately the S15 housing DID NOT FIT, due to the machined ring on the housing, not being small enough to mate to the GTIR center housing... FAIL... i think i need an adapter ring, can probably order one from Garrett..
couple shots of the compressor and turbine wheel... strange thing is, that when i test fit the Spec R exhaust housing, it did not fit, the GTIR turbine wheel was WAY to big... GTIR T28 better than a Spec R GT28R??!?!?!
comp wheel...
turbine wheel...
finished product, ready to go in, brand new OEM turbo/manifold gasket, new OEM Nissan MLS exhaust manifold gasket, and repaired waste gate pin... this GTIR turbo is pretty damn big for a T28....
initial results???? HOLY s*** THIS CAR HAULS a**!!!! .... seriously, i went from a struggling 5-6lbs under WOT, to an instant 9.5lbs @ 2800rpm... amazing... the response from my built turbo is absolutely INSANE..
now that everything is fixed, it's time for round two on the dyno... aiming for that big big 340-350.... i made some SERIOUS power @ 7lbs, so i'm thinking if i throw 10-11 more lbs at it i should be around my 340-350whp mark...
might bring it back to Z fever this Saturday, and have Martin finish tuning it (he had to stop last time, mid tuning, due to above exhaust leak)...
results soon to come....