turbo suggestions
car: 1989 iroc-z camaro
engine: stock ls3
trans: t56
i will probably be running ls1 or truck manifolds with both sides of the exhaust routed into the turbo.
ive also consider the turbonetics t series 76mm with ceramic ball bearing
and a procharger bov (like stangkilr love that set-up)
main a street car so not to sure on the turbo a/r size
thanks guys
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My opinion only... , the On3 76mm BB will provide all your motor can handle...for a stock LS3 setup. Also, it's nice and compact and has had good reviews by those who have actually used them, myself included. It's a good unit to get you into the game at a fraction of the cost of the others listed above. Not saying that they aren't good units, just saying that you can get a good unit at 1/3 of the cost. Again... my opinion only...
OP... Front Mount setup I take it? Oh, and I wish you the best in whatever you do end up goint with.
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For my setup, at 10 lbs boost, with LS9 Cam and stock heads/bottom, it was pulling hard all the way to 6000 rpm.
I believe the specs are similar to the Turbonetics TC76, so I would imagine similar performance.
Maybe someone else who's run one and is forged can chime in.
Also... here's a nice long, in depth thread that discusses the On3 Turbos. Good read.
https://ls1tech.com/forums/forced-in...on3-turbo.html
Hope it helps to answer some of your questions.
Im looking at getting a on3 turbo like yours for a rear mount setup
here are the specs on ebay
Cold Side:
Compressor Wheel 76mm
.80 a/r
4” Inlet and 2.5” Compressor Outlet
Inducer- 76.71mm
Exducer- 102.36mm
Exhaust Side:
Exhaust Housing T-4 Flange
.96 ar Exhaust Housing (.68, .81, 1.0 divided, 1.15 divided $30 charge for swapping housings)
3.0" Vband outlet
Inducer- 74.5mm
Exducer- 65mm
So are you saying you ordered the .81 ar exhaust housing ?


