[Herblenny]

I understand that different turbos have different efficiency and limitation..

Maybe I read it wrong.. But if your turbo makes 400hp top as its limitation on MAF based system and stock REW twin turbo (99s) will make close to 400 as its limitation on MAP.. I'm wondering if using MAF system on REW will produce similar HP...

I guess maybe I got confused when you stated about temp and efficiency being the issue and wondering if thats one of the downfall of MAF based system to so called hitting maximum potential of turbo.

I personally do not think FD units are junk/dinosaurs... Its very responsive and still one of the best sequential systems out there (mazda made FDs til 2002).. Many still prefers it vs. single, not just money but for its performance.. I mean, I still prefer it.. and really money wasn't an issue... I have a gigantic single at home that I could put on and make 500hp (T78BB) if I wanted to... but I know its not all about HP.

BNRSupercar just recently put 99spec (280HP turbos from mazda) and at 14lbs of boost (MAP) on bone stock motor made 321RWHP. Conservative tuning and super responsive (I think full boost at 2300-2500RPM). If FD turbo system is dinosaurs and when compared to Modern Renesis motor and modern BB turbo, why is it that people not putting Renesis in FDs (like person like me with a spare renesis at home and 2x FD)?? is it because of money?? or is it because there is nothing to do with difference between MAF or MAP?? I think that's the bottomline I'm trying to get to.. Is MAF based system so much superior without any catch that even "dinosaur" turbos could be ran better??