[quote="Dragongoose"]Sorry guys, I still prefer the suck through carby setup...the standard mechanical fuel pump which should handle it real well. Power with a t25 garrett should be around 180 Hp at the fly wheel on conservative boost say 8-12 pounds...don't need a Blow off valve as there is no throttle body in the way. So simple effective and practical, and it looks real cool seeing the carbys hanging off the turbo inlet. Better than looking at a box.
having done this I've got to agree with what Allan. Draw through is a much simpler system. I used the standard mechanical pump with no problems and ran 8 to 11 pound boost. There's no hassles with fuel pressure or sealing the carb. The only drawback is that you can't really intercool it. I simply used a 32/36 Weber and plumbed it into the top of the Weber adapter on the inlet manifold. And I used a 'J' pipe from the standard exhaust manifold.
The beauty of this simple system, although there was heaps of room for development and more bhp, was that you could convert it from turbo to NA (or vice-versa) in a matter of about 45 minutes! The ultimate Saturday night special. Just need a spare exhaust pipe to bolt in between the manifold and the collector, removing the 'J' pipe from the manifold and the dump pipe from the exhaust system at a flange at the beginning of the floorpan. Then move the carb from in front of the turbo back to the inlet manifold.
I never ran it on the quarter or a dyno, but based on how it blew my 150-160, 14.6 second L18 coupe away, it would have to be producing about 180hp, and run high 13's.
Still have the complete system on a bench in the shed, but the turbo is shagged. One day it will live again...
Transfer
