Thread: minimum carb cfm for 350
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08-11-2006 12:22 AM #1
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minimum carb cfm for 350
pretty self explanitory. how many cfm does it take to properly run a 350 (1982, currently with qjet)?
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08-11-2006 01:05 AM #2
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Proper for what, gas mileage, max hp, middle of the road or what, I've run rotten chester 2 jets, up the current twin 500 edel's on a tunnelram on 350's that were in proper tune (ie not running rich or lean), if your going for middle of the road I highly recommend the grant 625cfm road demon.Objects in the mirror are losing
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08-11-2006 06:32 AM #3
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400 cfm for normal street use
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08-11-2006 07:11 AM #4
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If you are running a stock or mild performance engine, an Edelbrock 600 would be a good choice.
Lynn
'32 3W
There's no 12 step program for stupid!
http://photo.net/photos/Lynn%20Johanson
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08-11-2006 10:57 AM #5
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my original post wasn't all that self explanitory after all. i was in a hurry.
anyway, the engine is pretty much stock. low-end torque is where i have my fun (rock crawling). it only sees high rpms in the mud. i can get a good deal on a 470cfm truck avenger, so the quadrajet might find a new home on top of a 396 in a 1970 chevelle, assuming the guy will budge on the price. it's a sweet car, IMO, even though it's not a true ss.
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08-11-2006 11:08 AM #6
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Cfm=cidxrpmxve/3456
476cfm=350x4700x1/3456
Around 100 Cfm More For Every 1,000rpm Over Above Numbers
600cfm.....6000rpm+/-
700cfm.....7000rpm+/-
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08-11-2006 11:08 AM #7
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Cfm=cidxrpmxve/3456
476cfm=350x4700x1/3456
Around 100 Cfm More For Every 1,000rpm Over Above Numbers
600cfm.....6000rpm+/-
700cfm.....7000rpm+/-
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08-11-2006 11:12 AM #8
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CID X MAX. RPM THEN DIVIDE BY 3456.
Originally Posted by vortec
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08-11-2006 11:12 AM #9
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CID X MAX. RPM THEN DIVIDE BY 3456. Originally Posted by vortec
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08-11-2006 11:12 AM #10
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CID X MAX. RPM THEN DIVIDE BY 3456. Originally Posted by vortec
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08-11-2006 11:13 AM #11
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Cubes x max. rpm divide by 3456. Originally Posted by vortec
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08-11-2006 12:58 PM #12
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cid x max. rpm's divide by 3456. Originally Posted by vortec
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08-12-2006 08:16 AM #13
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cubes x max. rpm divide by 3456. Originally Posted by vortec
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08-12-2006 04:01 PM #14
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What happened, there, Eric?? Got buck fever??
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08-12-2006 10:05 PM #15
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....what about the 've'??? Or is it 'close enough' to just figure ve at 100%??? Bill Originally Posted by erik erikson
ve = volumetric efficiency....Last edited by billlsbird; 08-12-2006 at 10:08 PM.
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Thank you Roger. .
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