CT20b boost Q Options

[Azncelica]

I've got my 3rd gen 3sgte swap done this past year. What I've notices, Turbo don't go full boost until about 3700 rpm. Pulls hard up to redline. I had a buddy with another ct20b turbo. I'd installed on my car. Test drive, It kicks in about 2500 rpm, but notices lack of power past 5k. I'm starting to wonder if my turbo was already mod. or normal.
I also dyno my car. 3 base pulled at 14ps, cheap ebay boost control wasn't holding anymore. I dyno in at about 230hp, miss place actual dyno sheet. For sure it was 230hp or more. Just also wondering where everyone else dyno their car? Only thing that is upgraded is, Went front mount intercooler, Aftermarket down pipe, cat deleted. Full 3' exhaust. and aftermarket radatior. Every else is all stock. Last Also Took my car to the track for the first time. My best time was 14.4 at 99 mph, fastest trap speed was at 103 mph but slower time. No traction, tires spins 1-3rd, finally have traction after 60ft mark. Planing on going with bigger turbo set up this year. Just want to a feel of what everyone have done and try so I can related that to my choices of set up I would like to do. I want my $$$$$$$ count on what ever I do. As we all know, everything for 3sgte and celica isn't cheap.

[DEATH]

Full boost [14PSI] at 3700 seems SLIGHTLY late but not by much. It could be as simple as a leaky dodgy MBC - you already said yours was not so great.
Mine pulls hard through redline but mind you it is a WRC CT-20b - not sure what the regular CT-20b is capable of. I would think the ceramic one would spool quicker than my steel one. I know that was the case with my old RC Ceramic CT-26 vs a regular USDM Steel CT-26.
I would warn you not to attempt much more than 15PSI on a ceramic CT-20b tho - I've heard horror stories of the fins shattering on the turbine and I have a ceramic CT-26 off a friend's MR2 that did just that. It makes a nice coffee table decoration now.
230WHP sounds right for 14PSI - that's about what Def and I made at that level. The power goes up quick as you add PSI tho. A few members on here made 340WHP on stockish 3rd Gens with 20+ PSI of boost. From what I can tell it's ~15WHP/PSI.
Your 103mph trap speed says you should be in the high 13's from what some of us have run. The launch IS the trickiest part. Till you get that down your gonna be stuck in the 14's. Practise Practise Practise

This post has been edited by DEATH: Jan 10, 2011 - 7:40 PM