motor finally finished
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Freshman User
Joined: Jun 2006
Posts: 35
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motor finally finished
I'll put new pics of my motor on tomorrow, got a new edelbrock intake, edelbrock 750 4 barrel, new ford racing valve covers and breather, Ill have pics on tomorrow bcuz i just picked it up and didnt have time. But here is my baby.
https://www.ford-trucks.com/user_gal...?albumid=22886
https://www.ford-trucks.com/user_gal...?albumid=22886
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Originally Posted by Mazlem
What's the downside of too large a carb? I got my '66 with a 302ci / 650cfm 4bbl.
I'll bet that you will find that it is.
John
Cross-Country
Joined: Apr 2006
Posts: 54
Likes: 1
From: NY
Originally Posted by jowilker
You will be pouring unused gas out on the street. Go around and look at your tailpipe tip. Is it black and sooty from unburned gas? Give it a sniff while you are back there.
I'll bet that you will find that it is.
I'll bet that you will find that it is.
Sorry for the hijack Gordon; that's one classy lookin' truck you've got there!
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Logistics Pro
Joined: Jun 2003
Posts: 3,921
Likes: 272
Originally Posted by Mazlem
Quite so! I recall seeing a list showing that 500CFM would be good for a 302. That sound about right?
Engine size (CID) x maximum RPM / 3456 = CFM
CFM @ 100% volumetric efficiency
Very few race engines run at 100% volumetric efficiency. A street engine would not come close to 100% volumetric efficiency. This has to be taken into account when using this formula.
NASCAR Craftsman Truck Series engines run 390 CFM carburetors and are over 600 HP.
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Junior User
Joined: Sep 2006
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From: South Carolina
Originally Posted by instig8r63
NASCAR Craftsman Truck Series engines run 390 CFM carburetors and are over 600 HP.
Sweet Truck Gordon. I just bought a '65 last week that still has the 352 in it. Your pics may inspire me to keep it.
Logistics Pro
Joined: Jun 2003
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Originally Posted by ABA
Only because NASCAR says that have to run small carbs. What size do the Winston , oops , I mean Nextel cup boys run?
Busch Series cars run 390 CFM also. About 660 HP @ 7900 rpm's.
Nextel Cup Series rule book allows for 830 CFM. Cup motors run about 790 HP @ 9400 rpm's.
