And now I present a freshly rebuilt Gen 1 CT26 turbo (single entry), complete with a mild T04E/46 compressor upgrade, a 7M-GTE turbine housing swap, brand new seals, and full balancing.
See where the compressor housing inlet was bored out and slightly ported for the T04E/46 compressor wheel?
And here is the turbine housing from the Supra 7M-GTE CT26.
It is has a larger A/R than the original Celica 3S-GTE Gen 1 CT26, and will, therefore, allow a greater CFM relative to back-pressure than the stock housing. This may hurt low-rpm spoolup, but that can be offset with an unrestricted turbo-back exhaust upgrade.
I love clean parts, and so does my st165!
Yesterday, FedEx brought me a new manifold from Toyota. I really appreciate the lack of cracks.
Here’s the old manifold outlet—see the crack?
Then today, UPS delivered the injectors, all cleaned and flow-tested by RC Engineering.
Prior to the test, at 43 psi:
- 1 : 436 cc/min
- 2 : 429 cc/min
- 3 : 411 cc/min
- 4 : 428 cc/min
After the test, at 43 psi:
- 1 : 441 cc/min
- 2 : 440 cc/min
- 3 : 439 cc/min
- 4 : 440 cc/min
That will work just fine, and the two highest-flowing injectors will feed cylinders #2 and #3.
My Tacoma’s supercharger has been howling for a while now, which indicates bad nose bearings. I was anticipating spending $200+ (up to around $750 if more than the nose bearings were bad), plus shipping two ways, to get my 1st gen TRD supercharger rebuilt for the Tacoma. And then there would have been the downtime of my truck, too.
Then, thanks to the forums at Custom Tacos, I discovered an Ebay seller with the rebuild kit I needed for under $100! Woohoo! So now I can do the rebuild without pulling the supercharger off the truck—though I may anyway just to clean things up.
Update – April 9, 2006…
The rebuild kit arrived yesterday.