I think you guys would have to agree that I've been pretty respectful of the X37 and not bashed it or been critical of anything to do with it.
And I'll continue to do so.
But I do want to bring up something because I'm positive almost no one is aware of this, and I wanted to bring it to light to help X37 users out. This is a fact. Some may feel its good idea to correct it, some may feel its not worth the trouble or bit of money. I'll leave that upto you guys. So here we go...
The stock turbine wheel 32mm by 38mm.
The stock exhaust manifold outlet is 33mm and the stock turbine exhaust inlet is 35mm. This is was not the end or the world for ford to use small ports like this because it matches the stock turbine size and stock compressor wheel flow capabilities in general.
That being said... With Pumaspeed upping the compressor wheel by 8mm and upping the turbine wheel another 5mm you end up feeding a 38mm by 43mm turbine wheel ( appox ) with a bottle necked manifold outlet and pinched turbine inlet, both of which are smaller than the turbine wheel.
Its not the end of the world or anything, but... If you really want to push an X37, it maybe worth your time to consider it.
I cores on manifolds and could have a week or less turn around time on porting your turbine in most cases.
Just something for you guys to be aware of. Not trying to steal any business or make any claims, just thought I'd put that info out there so people are aware and if they want to do something about it, my options are pretty reasonable. And... If you don't want to use me as a solution, you can be prepared yourself to remedy these flow restrictions yourself before your new turbo shows up.
But just be very aware, I spend 12+ hours on a turbine/manifold port job for an internal wastegate setup. And I'm extremely used to doing these.
This also applies to guys with ATP kits. Manifolds still have a 33mm output feeding 53mm turbine wheel, and I'd match the adaptor for free if you send it.
Stock
About where I take them.
ATP guys wonder why they can't match aftermarket manifolds with response...