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SwpdMR2
07-22-2010, 08:10 PM
Hello Everyone,

I'm over in the MR2 forum but figured this information could be useful here too. I move pretty slow as $ is the driving force but as I get it and make progress, I'll be sure to post it here as well as there.

***MR2 Forum Reference***
Really haven't seen much on these other than APFMatt and Significant doing it. Both of them had larger wheels on their versions so performance was compromised. APFMatt never contributed a dyno, and Significant's dyno just plain sucked (no offense if you see this).
******

So why not try a stock MR2 CT26, stock CHRA, just add the Supra exhaust housing.

Turns out I had a spare JDM CT26 and bought a rebuilt Supra CT26 for $50. I pulled apart the turbos just to find that ceramic turbine had a chip and the compressor looked like it got drunk off oil and threw up all over itself.

That being said, I am going to use the rebuilt Supra CHRA and just switch out compressors (Supra compressor is larger than MR2). I need to purchase a Toyota SST to remove the compressor nut on the Supra CHRA since it's being stingy. And that is where I'm at.

Thumbnails:
http://i859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/th_000_0106.jpg (http://s859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/?action=view&current=000_0106.jpg)http://i859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/th_000_0107.jpg (http://s859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/?action=view&current=000_0107.jpg)http://i859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/th_000_0108.jpg (http://s859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/?action=view&current=000_0108.jpg)http://i859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/th_000_0109.jpg (http://s859.photobucket.com/albums/ab153/KSabatka/MR2%20Stuff/Hybrid%20CT26/?action=view&current=000_0109.jpg)

I still need to:

Thread the wastegate actuator to fit the Supra exhaust housing
Knock out the divider in the exhaust manifold
Purchase / make the downpipe


I honestly have no idea how this might perform on a stock, let alone built, MR2... but my goal is to find out and contribute some information to the community. Hopefully this turns out to be a worthwhile alternative to more expensive turbo kits (or even a used CT20B for $600).

---------- Post added at 02:10 PM ---------- Previous post was at 02:06 PM ----------

Since I posted that a couple months ago on the MR2 forum, I've learned I can get a brand new ST165 Exhaust manifold for cheap ($145 shipped) and currently looking for a ST165 downpipe. I have a WTB thread in this forum for the stock downpipe, someone replied but still need more information from him before I send $$.

This darn post count rule is annoying as I can't send any private messages... The 2 forums should just merge post counts haha.

burnyd
07-22-2010, 11:02 PM
Seems interesting please get it dynod and let us know how you do..

I can tell you on my JDM Swapped car with a Ct20b 14psi everything else stock I made 250whp, 255tq.... So yah sure this would be a good upgrade if it works properly...

SwpdMR2
07-22-2010, 11:10 PM
Well my whole theory is that if ATS can get 350+ on a ct27, then an even larger exhaust housing will work even better. The reason for using the mr2 compressor side instead of the supra is for wastegate purposes and oil/coolant feed/drain. Im looking forward to it.

Edit: found someone that had both a ST165 exhaust manifold and downpipe. Once I get them, I can do some test fitting.