It seems a lot of people have trouble with that boost controller. The best one I have seen so far is the Blitz Dual SBC.

 

Love doctor, a CT20B on a stock exhaust is going to be extremely choked like you've seen. Open up to a 3 inch system and say hello to 230ish whp.

 

I will not replace the Turbo without upgrading my exhaust. I'm in the hunt as we speak.

By the way, anyone know when the next MR2 meet is?

PEACE-

 

Ahh, forgot u were still on the old CT..

STILL however, over stock boost on that turbine really wont do alot for power. You really need to open that exhaust up, its choking you bigtime.

 

3" dp and exhaust is the best power gain you get aside from a boost controller, but the boost controller is useless without the exhaust to back it up.

 

Nice numbers mark.


I almost went, but was too ashamed of my ugly paintless mr2. Its going in the paint shop tomorrow though, so ill try to make it up there for the next one. Yeah that 20b is a fun turbo though, i do kinda miss mine a little bit, for drivability reasons.

 

nice #s

 

OK... once you hit 3k rpm on the 2nd gen, the maf is wide open and your running full rich. That's why. Youve got to remember your at over 80% duty cycle on your injectors at this point as well. They can handle it under normal driving conditions, but you've got to be carefull once you near the 300hp mark. Also, make sure your running AT LEAST a 255lph fuel pump, like a walbro or something. They are only $100 and well worth the safety. You don't want your pump starving out when your boosting or its bye bye 3s. Best of luck hitting 11's on the stock CT. Im not saying its not possible, just difficult. I hope you have a US spec and not the ceramic wheel. If so then do NOT boost over 15psi. Your turbo life is already shortend running that boost, but you dont want the exhaust wheel breaking up (if its ceramic) and getting sucked back into the engine. I have heard of this happening and it makes your block UNUSABLE. Just my .02 cents

Kick ass numbers tho.

 

if you are referring to MR2driver, last i remember he has a Gen 3 in his car with the CT20B.....and last i remember they didnt have a U.S. spec one....didnt they only come on the Gen 3 motor which was never U.S. spec? If i'm wrong please correct me...

 

I am running a Gen 3 engine, so none of your theories apply. Thanks for the information, though. The only thought that I will address is of the ceramic compressor wheel. The only time a wheel will break up is when the turbo has bad seals and is thrown out of balance. I maintain mine, so that will not be an issue for me. I also only run high boost when I am racing. Daily use only sees 10psi.