Quote Originally Posted by vtraudt View Post
Yeah, will have to bring the torque up slowly.

Turbo is fine, no worries there. Built and running plenty of them. Just not on 'fragile' tranny.

"Hot air" is generated by the compressor side. Running a compressor outside its high efficiency range (shown as efficiency lines in % on compressor maps) results in 'hot air'. At 50% efficiency, half of the input energy (the turbine is the 'motor', driving the compressor) is converted into heat, and only the other half into pressure increase. Our setup would not have any issues running WAY past the 22 psi (stock MAP) limit. I am also pretty sure the internals (Cosworth surely didn't skimp on the goodies) are quite strong. So the engine is good for plenty of torque and power. No worries there.
I also have a lot of experience working with and fabricating turbo systems, and understand the difference between hot and cold sides. I also know how to read a compressor map. I guess my point about the turbine side is it's so unbelievably small on this engine, it's easy to over spin, which in turn over spins your compressor. Sorry I wasn't clear, I thought this was assumed. I agree with your lower boost mentality, as we tried to big boost route too, only to find it plummet like a stone after 4k, which we thought it would do, but had to prove it. Was worse with the 6 speed manual, quicker revving and all...