3S-GTE USDM Turbo Engine turbo question

lephute · 11-10-2009, 06:34 AM

will a supra ct26 fit on a 91 turbo? a friend of mine has one and since my turbo went out i was wondering if it is a direct bolt on.

Liger · 11-10-2009, 07:27 PM

The turbine housing has a circular inlet that will need to be ported out into a square inlet, the bolt pattern for the downpipe is completely different, you'll need to re-clock the turbo by removing the dowl pines in the housings, and I don't think that the turbo support bracket bolts up either...

So no, not a direct bolt on

MR2BOY23 · 11-10-2009, 07:50 PM

Im pretty sure its a totally different ct26 by spec. As its made for a 2.5/3l l6?

Luni · 11-10-2009, 08:57 PM

Its a direct bolt on for the exhaust manifold (the entry port is different size and shape - the MR2 one being square and divided, the Supra one being round)- the bolts line up, but the exhaust side uses a different elbow, and downpipe, so that wont work without custom fab.

You can frankenstein the guts and compressor wheel of that turbo onto the exhaust housing of the MR2 and make it bolt on.

Its not the best thing to do IMO tho. It wont get you much power, and youll lose spool.

11-10-2009, 06:34 AM	#1 (permalink)
lephute No Skills Join Date: Jun 2009 Location: San Diego Posts: 45 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	turbo question will a supra ct26 fit on a 91 turbo? a friend of mine has one and since my turbo went out i was wondering if it is a direct bolt on.

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11-10-2009, 07:27 PM	#2 (permalink)
Liger Some Skills Join Date: Jun 2009 Posts: 66 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	The turbine housing has a circular inlet that will need to be ported out into a square inlet, the bolt pattern for the downpipe is completely different, you'll need to re-clock the turbo by removing the dowl pines in the housings, and I don't think that the turbo support bracket bolts up either... So no, not a direct bolt on

11-10-2009, 07:50 PM	#3 (permalink)
MR2BOY23 Some Skills Join Date: Aug 2009 Location: Auckland, New Zealand Posts: 64 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	Im pretty sure its a totally different ct26 by spec. As its made for a 2.5/3l l6?

11-10-2009, 08:57 PM	#4 (permalink)
Luni Cage Fighter Join Date: Oct 2005 Location: Salt Lake City Utah Posts: 3,213 Thanks: 10 Thanked 130 Times in 110 Posts My Google Map iTrader Rating: (8/100% )	Its a direct bolt on for the exhaust manifold (the entry port is different size and shape - the MR2 one being square and divided, the Supra one being round)- the bolts line up, but the exhaust side uses a different elbow, and downpipe, so that wont work without custom fab. You can frankenstein the guts and compressor wheel of that turbo onto the exhaust housing of the MR2 and make it bolt on. Its not the best thing to do IMO tho. It wont get you much power, and youll lose spool.