Tri-Power Set Ups
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Elder User
Joined: Feb 2002
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From: Middleton, WI
Tri-Power Set Ups
Anyone using the new repro/updated Tri-Power set up from Carls in Ohio. It seems like the perfect deal -350cfm for street- and then over 900 CFM at WOT. This may be my first big upgrade after the dust settles and I actually get to drive my truck again.
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Joined: Oct 2001
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From: Miami U.S.A.
Tri-Power Set Ups
I can't remebr for sure how this works. But a 900 cfm 2v set up will not flow as well as a 600 cfm 4v.
2 Barrel carbs are rated at a lower vaccum setting than 4 barrel carbs. I also though like many others that 900 cfm was 900 cfm. It aint. I think 2v's are flowed at 30 in/Hg, and 4v's at 60 in/Hg. It may be the other way around or it could be 15 and 30. I can't remebr for sure. But, the point is a 600cfm 4v will out flow a 900cfm 2v any day of the week.
Scotty
2 Barrel carbs are rated at a lower vaccum setting than 4 barrel carbs. I also though like many others that 900 cfm was 900 cfm. It aint. I think 2v's are flowed at 30 in/Hg, and 4v's at 60 in/Hg. It may be the other way around or it could be 15 and 30. I can't remebr for sure. But, the point is a 600cfm 4v will out flow a 900cfm 2v any day of the week.
Scotty
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Joined: Aug 2002
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Tri-Power Set Ups
i don't know how they flow em either, but i know a guy that had a 406, with the factory tripower, in a boat. at wot, the mech pump, with an additional electric could not keep up with it. had to go to 1/2" primary fuel line, the 1/4" just couldn't flow enough. that boat ripped.
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Joined: Oct 2001
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From: Miami U.S.A.
Tri-Power Set Ups
I don't want to sound like I am trying to keep everyone away from tri-powers. I think they look SWEET. Nothing looks better on top of a FE than a tri-power. But, I wanted to let everyone know that not all carbs are created (flowed) equal. Pun intended.
Scotty
Scotty
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Joined: Jan 2003
Posts: 451
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From: Balfour
Tri-Power Set Ups
How much it actually flows, who knows? but the tri power
is big enough to choke a 390/406 quit easily when you tromp
on it from dead start, tuning it for the "tromp" is the biggest
hurdle.
is big enough to choke a 390/406 quit easily when you tromp
on it from dead start, tuning it for the "tromp" is the biggest
hurdle.
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Joined: Feb 2000
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From: Brea CA
Tri-Power Set Ups
That's one of the challenges with the Ford tripower, dialing out the bog. Reason is the secondaries are pure mechanical. Get a copy of the '61-'63 Galaxie service manual, it tells you how to adjust it and it's not that intuitive. Ford played around with vacuum diaphragms on the end carbs. but the chambers were too small. The tripower works great once you get it dialed in, they seem to work better on sticks than automatics though.
Barry
Barry
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