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PostPosted: Tue Jul 21, 2020 12:15 pm 
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TBI Slant 6

Joined: Sat Oct 12, 2019 11:42 pm
Posts: 128
Car Model: Rat rod
Hi guys,

I have an opportunity to pick up a single barrel carb intake and could use a 20,000 foot answer on this. Is is reasonably possible to modify the manifold to accept a supercharger out of an old Riviera or whatever else I can scrounge from a junkyard?

Sincerely,

Paul Barrow


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PostPosted: Tue Jul 21, 2020 12:53 pm 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 7536
Location: Silver Springs, Fl.
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If you mean from a Buick or Pontiac turbocharger, the answer is yes. Several have done it, including myself with a Corvair turbo.

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PostPosted: Tue Jul 21, 2020 1:01 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7703
Location: SW Washington
Car Model: 1965 Plymouth Barracuda, 1954 Dodge C1-B8
Here's where I would start. Make a plate to match the base of a Holley 2300 series 2 bbl. Cut and shape the manifold to make a nice area to weld the new carburetor pad to the intake manifold. Mount a blow-through Holley 2300.

Figure out where you can mount the blower. Get the M90 from the later GM products or a 3.8 Ford. The M62 on the early GM V6s is a bit small.

Find a place for an intercooler. Plumb from the blower to intercooler to carb.

You need a higher pressure fuel system. Add 5 psi to however much boost you expect to run plus a cushion of 4 psi. So a minimum 19 psi pump for 10 psi. You'll need a boost referenced pressure regulator and a return line.

You can also do draw-through, but that doesn't allow for intercooling. It does, however get you out of the high pressure fuel system.

I would definitely pick up a couple books on supercharging and turbocharging to get a handle on a ll the ins and outs. We haven't even covered timing control or detonation suppression.


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PostPosted: Tue Jul 21, 2020 3:04 pm 
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TBI Slant 6

Joined: Sat Oct 12, 2019 11:42 pm
Posts: 128
Car Model: Rat rod
Thanks guys, this will be way down the road, but if I can get the manifold cheap I figure I can hold onto it. Joshie, I'll keep your notes handy for when I finally get there!

Sincerely,

Paul

PS: Hoping to get my frame in the next few weeks to mount the engine in.

PPS: What books would you recommend?


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PostPosted: Wed Jul 22, 2020 7:40 pm 
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Joined: Wed Nov 06, 2002 1:57 pm
Posts: 2022
Location: Everett, WA
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Will it be port fuel injected? If so, the answer is no. The base plate for a GM M90 will be too wide and there will be no room for the injectors on the runners.


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