turbo

[ddsmith]

Gale Banks had a twin turbo setup out a long while ago that was making 780 HP from a race prepped 350. Sizing of a turbo or twin turbo system is very important. I believe that turbonetics had some good information on sizing for applications. This is a build from the bottom project. Forged crank is a real good idea, turbo pistons, about 7.5 to 8 compression ratio. I'm a big fan of the blow-though design. Banks used a air dump valve on the air box when the throttle was closed(hi vacuum) the valve opened this allowed the twin turbos to stay spooled up. When the throttle was punched vacuum dropped slaming the valve shut and this effectively did away with turbo lag. Turbo lag being the reason that most dislike turbos. If you work your way through all this then ensure the life blood(oil) for the turbo is always there. Moroso has an item called accusump I believe that is a gas charged reserve oil accumulator. If oil pressure drops off the accumulator discharges keeping oil on the turbo bearings to prevent failure. I'll close with this is not a slap on addition. You could probably get something from it. It would not be worth the effort unless you are willing to do it right.

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