Hot Rod article - how to mod a carb for boost
You need to get out more and visit the VW bug forums. The drawthru setup is quite popular over there. You really don't need an intercooler with drawthru. The very act of mixing the fuel and air in the carb and running it thru the turbo produces a "liquid intercooler" which is just effective as an external intercooler. This is explained in MacInnes book.
How many of those VW devotees bother to read the "For A Bodies Only" slant six forum?
Not many, I'd bet, so the advice about modifying a Holley carb to work well with a draw-thru system isn't going to be seen by many 4-cylinder, air-cooled racers I'd bet.
The '65 Barracuda, 170-powered slant six Bonneville racer has a draw-thru system, but that is the only draw-thru setup I have heard about, lately.
Back a few years ago, NHRA featured a class for modified cars, called "Modified Compact." There were at least three 2000-cc Ford Pintos built for that class, by the likes of "Ohio" George Montgomery (yeah, that one,) a team of Ford engineers, (the car ended up belonging to Buddy Ingersoll,) and Butch Ball, of Washington state. They all were draw-thru and all were blindingly fast (9.60s...) but expensive to race, so the class never "took off" and was dropped by NHRA ten or so, years ago. Too bad; they were fun to watch, with their (manual) 5-speed, wheelstands in every gear, 135mph runs...
They were all "draw-thru" turbos... 2,350 pounds, ready-to-race, with driver...
