ct20

I plan on upgrading my turbo with a ct20b. I've read that it will replace the stock ct26 without too much difficulty. My questions are as follows: Will I need to run a bigger fuel system(if so, then what). Will I need any new parts to fit the ct20? I plan on already having the KO exhaust(2.5) and the 2.5 downpipe from KO on my mr2 previously to the new turbo. I understand that these are a perfect fit for the ct20. Also what boost would you experts recomend me running it at? Thankyou

You will not need fuel upgrades unless you are exceeding 16 psi of boost or so.

If you want to run 18 psi ro so, I would recommend getting an adjustable FPR (www.trueleo.com/fpr.htm) and upping your base-idle fuel pressure.
I would also suggest race gas and running copper plugs with a gap of .028"

As long as your engine is healthy, you should be fine.

If you want more than 20 psi, you should look for fuel upgrades (fuel pump, injectors and some thing to "tune" with).

Thanks a lot. That was very helpful.