Thread: Barry's thoughts on performance.
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Old April 14th, 2014, 03:40 PM
turbobill turbobill is offline
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Join Date: Feb 2013
Location: northern NY when not flying
Truck: 1968 HM80 with a 478M and a few engines plus a Toro-Flow
Posts: 98
Rep Power: 94
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Default Re: Barry's thoughts on performance.
I have a complete 215 Jetfire engine. Fortunately it had a 4 speed so I can bolt most any other GM manual behind it.

The turbo set up is very similar to what Buick used on their later turbo V6's starting in 1978. The one you picture looks like the early Buick setup used on the carbureted 231's. I have about a half dozen of them floating around here, plus one Pontiac 301 turbosystem.

If I ever get the time, I'm going to single turbocharge both my 478 and one of my 305's. The turbo on my 468 Chevy will be used on the 478 and for the 305, I'm going to experiment with both the 231 and 301 turbo's. The 231 turbo should spool way down low and compliment the low RPM torque peak of the 305.
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