Ok, so the project has begun...
I have a 20b heading my way and I'm trying to determine what porting/turbo setup I want to use.

I was origionally intending on a half bridge with a T88 but at this point I don't think it would be very streetable.

Seems to me a large streetport and a T72 is the way to go for a good powerband at lower RPM's.

Input would be appreciated, or some dyno charts would be nice to look at.
Again... let me know what you guys think.

 

It would help if you listed the intent of the car. Road race and drag race are very different setups. Also, keep in mind that there is a point where TII or FD driveline components are going to break, and upgraded parts are very expensive. It's probably not such a great idea to try for more than 500bhp if your budget is below $35,000.

Here is a list of electronic dyno sheets:
http://www.catenet.net/dyno.php

 

I will be running a Garrett T76 1.32 A/R knife edge'd and a ((large streetport)(eventually)) for right now motor will have stock ports

 

there may be a bunch of turbos that would work but the t72 w 90-95 lbs/min should work well.

90X10/1.3= 700 rw rotary approx hp. that's absolute max w major overlapped porting etc. chance are you'll be a few ticks below that number.

hold on to your hat and get some really big tires and a double disc clutch.

howard coleman

 

Howard,
Can you expand on that equation you posted? 90x10/1.3
I'm thinking the 90 is the lbs from the turbo but not sure about the 10 and 1.3.

 

where is the best place to get the best price on turbo's while this question is being
answered
matt

 

atpturbo.com and cheapturbo.com are good places to look.