type 4 turbo guys-, what turbo did you pick and why- Options

[ottox914]

Alot of turbo talk lately. Just curious, for those who have been there/done that, what turbo did you pick, why, and if your project is on the road, how do you like it?

[ottox914]

All of the above comments are proven in the real world. 2 of our top street mod cars are supercharged, not turbo'd. One of our top 5 FTD's is regularly a second gen MR2 turbo. Guy beats it like a stray dog, but he's fast w/a turbo. I've instructed in WRX's that NEED left foot braking to keep it up on the snort, but to compare, the STI's just plain GO! Just gotta get the turbo sized for your needs. The danger for all of us is going TO small on the exhaust side- to small = more back pressure and more heat in the exhaust system, making its way back to the heads. In a system like Ben's, with long runs and stock heat exchangers, I would expect that system could soak up some heat before "hot heads" became a problem. I'll be making a header system direct from the heads to the turbo, so the "heat sink" capasity of my exhaust system will not be as great.

Ben- can you have a look at your turbo and see if the compressor and turbine housings have the A/R cast into them? I'd be interested to know that relationship. I agree with fun from 3-5k, since with a stock cam and valve train, we make more noise than power above 5k anyway-