I run a T04 turbo std stock Mazda porting and have 22psi at 4400rpm, but more to the point massive power at even these low revs, its so much that when the turbo comes on boost and power is there, it literally compresses the Ohlins race suspension and the nose lifts into the sky
It is stupid really, it is so violent coming onto power in 2nd gear that it will throw the car off the road and even F1 spec Race Logic traction control has trouble taming it (and that is in a FD Chassis with big rear tires of soft compound hot tires~!) and over 50% weight over the rear tires.
You can have too much low end mid range power. Having said all that I would not swap it for the world


and that is someone who makes excellent street ports and loves the top end power they produce.
You have to be careful when you get into big power ranges (Ferrari F40 acceleration specs) cause if you use too small a turbo combination your EGT goes through the roof! and it is NOT reliable on the engine nor the turbine. I have all the details listed in my ride thread build up. I dont list EVERY specification but I give away more than anyone else when it comes to these topics
Water Injection is mandatory if you want reliability and power combined.