Thread: Frankenplenum
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Old 02-12-2015   #64
rkreigh
 
Join Date: Jan 2004
Location: Alex VA
Posts: 1,080
Default Re: Frankenplenum

at BG when kirchoffer fired up the cammy 421 we could see the top which looked like it was made out of a 1/4 plate of nice alum (about 2 ft by 20 inches or so) would flex and pop like a beer can

it was pretty amazing, but it didn't deliver the big hp hoped for and it was a solid looking design with nice taper built into the runners, injectors on the outside, and a big plenum box

I'm more enamoured with the look and audaciousness of the cross ram individual throttle body

those big caliope stacks bring back memories of screaming big blocks at the drags in little altered cars and some door slammers only the blower cars were cooler!

the injector housing creates a rather torturous path with the s bend

cutting up and rewelding the OBX would be a major chore, but it's cost effective would look like the corvette racers (which have beautiful carbon fiber cross rams)

with the 3d printing technology, we could print up and individual base and then cast it. with the right media, like a heavy nylon plastic, it would probably work right off the printer with a heat insulating gasket

anyone want to give this a go? tuning will be tough, me thinks the megasquirt piggy backed into the factory ecm to run the spark and injectors would do nicely there

I may yet try one of these on my c3 to see how well it works out on a little screamin 4.8 iron block

the short stroke revs up nicely and the car is light enough to make this work

cheers!

Last edited by rkreigh; 02-12-2015 at 07:21 AM.
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