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Turbo oiling and turbo questions

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Old 05-19-2008, 02:13 AM
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Car: 89 GTA
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27
Turbo oiling and turbo questions

I was wondering what size T-fitting I need to tee off the oil pressure sending unit to supply oil to my turbos.

Also I was wondering what is the best way to get the oil back into the motor.

I am getting everything together to do a RMT setup. I am going to use a Mocal differentail oil pump and either a T70 or T3/T4 turbo. I plan on pushing about 7 psi now and later rebuild and go for 15 psi.

What size turbo do I need for this. I have been researching and it seems I need an A/R in the .50-.63 range. Is this correct?

Any help is greatly appreciated.


Thanks
Jason
Old 05-19-2008, 07:37 AM
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Re: Turbo oiling and turbo questions

a/r is far to small. your gonna need something in the .96 range. and also the t70 is a bit small. personally i would do it right the first time and just get a T76 with a .96 a/r. it will breathe right on the car until you turn it up and try and go past 800+hp.
Old 05-19-2008, 04:23 PM
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Car: 89 RS 89 iroc 87 firebird
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Re: Turbo oiling and turbo questions

i believ all the rmt mount setups do use a .63, at most i would go with a .84 housing though im unsure of how laggy that would be on a rear mount system.a real t70 is all u need.a t4 57 trim coldside will be on the small side for a 350 so deff got for the larger one
Old 05-19-2008, 04:54 PM
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Re: Turbo oiling and turbo questions

woooo didnt see the part about the rear mount. durrr.
Old 05-19-2008, 06:53 PM
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Car: 89 GTA
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Re: Turbo oiling and turbo questions

yeah I definitely want something with a quick spool. Also what about the Tee fittings.
Old 05-19-2008, 09:06 PM
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Re: Turbo oiling and turbo questions

1/4 in going into the block [pipe]... upper and lower oil ports in the block


I am returning mine into the Mech.fuel pump plate...
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