Forced Induction Superchargers | Turbochargers | Intercoolers

GT-88 oil drain size?

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Old Jul 19, 2009 | 11:56 AM
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Default GT-88 oil drain size?

What other turbo drain size is the same? I am talking the gasket and flange. I need to get this stuff ordered today. Is it the same size as the t-4 and t-3 turbo's?
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Old Jul 19, 2009 | 12:09 PM
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Gt40 and up use same flange. Also T3/T4 stuff does as well.

The Garrett GT based turbos use a smaller flange. I would hope that anyone who is selling you the flange would know what your turbo needs.
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Old Jul 19, 2009 | 12:15 PM
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I am buying it off ebay, so no help from them. I tried all day Friday to get a hold of FI but they never answered their phone. They are probly on vacation or something. I need to get this part in ASAP. I am running out of time, thats why I am now looking to just get it off ebay, if I knew which one it was. Most of the places on ebay seam to list stuff for the t-3/t-4's, its hard to find anything for the GT88 T-6 stuff on there. Not sure if I understand what you posted. I do not even know if my turbo is a GT40 frame or what, all I know is it is a GT88 T-6 exhaust housing.
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Old Jul 19, 2009 | 12:28 PM
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There are two styles of oil drain flanges. You need the larger one.
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Old Aug 2, 2009 | 11:13 AM
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The one I got for that fits the t4 stuff is too small.
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Old Aug 2, 2009 | 12:26 PM
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If you are in a hurry buy them both.
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Old Aug 2, 2009 | 12:47 PM
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If you have the turbo with you, you need to measure the distance between the bolt holes to determine which flange you'll need.
Can you measure the one you have now? Is is 2" approximately?
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Old Aug 2, 2009 | 01:47 PM
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Measuring between bolt holes will not help you! My drain hole itself is 1in. in diameter.The bolt pattern is the same as the T4 flange, but the drain fitting i had purchased oringinaly was to small. The flange itself would barely cover the hole and was for a T4. I know this company is not a sponsor, BUT they were the only company that could help me. Call Wolfe Racing. They have flanges with o-rings and screens in them as well. Very nice pieces and not expensive.
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Old Aug 2, 2009 | 02:22 PM
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modularturbo has that stuff too! awsome man to deal with!!
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Old Aug 2, 2009 | 02:51 PM
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I will order it this Monday. It seams like every little thing is putting me farther and farther behind on this. I now have all the exhaust piping completed from the manifolds to the rear mount and the waistgate. I need to order the oil drain fitting, 5" downpipe flange and clamp, a 5" 90, to finish up the downpipe. I have the cold air completed all the way to in front of the engine were the alternator was. I now need to wrap everything and clean everything out and reinstall it all. Then I will be ready to pull the nose apart and install the front mount intercooler and run all that piping. I still need to drop the engine so I can drill the pan and weld on my -10 fitting for the oil return, but I am going to do that once I have everything installed.
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