carter cfm

[250coupe]

what cfm do carter rbs 1 carbs flow. ive got two of them. one from 72 and the other from 74.

 

[Hot 6t Falcon]

Howdy,

The carter RBS was use from 170 to 1974. It is rated at 215 cfm.

Hope this helps
Dennis

 

[250coupe]

Im gonna keep the RBS on my car due to tha crazy econmy. yesterday I installed tha chrome air cleaner i got for christmas. would the open element make a difference in performance on a 215cfm carb. i may get a K&N filter for it. tha one that came with it is a stock filter element.

 

[Gene Fiore]

Yes, the YF will fit as long as you use a stock type drop base air cleaner. I had one on my Maverick.

 

[250coupe]

Im gonna keep the RBS on my car due to tha crazy econmy. yesterday I installed tha chrome air cleaner i got for christmas. would the open element make a difference in performance on a 215cfm carb. i may get a K&N filter for it. tha one that came with it is a stock filter element.

 

[Eric Rose]

Whats the difference between an RBS and a YF? Is the YF rated at 215 too?

 

[Gene Fiore]

I'm fairly certain that the YF is less cfm's than the RBS, but I'm not sure exactly how much. The air cleaner that currently fits the RBS may not fit the YF.

 

[250coupe]

Im gonna keep the RBS on my car due to tha crazy econmy. yesterday I installed tha chrome air cleaner i got for christmas. would the open element make a difference in performance on a 215cfm carb. i may get a K&N filter for it. tha one that came with it is a stock filter element.

could some one pleez give me sum feedback

 

[wallaka]

Sure. It'll make as much difference as it does on any other carb. 0-10 hp gain.

 

[Harte3]

K&N is basically a "bragging rights" item. They flow a little more and filter a little less than a stock filter. Years ago when Vizard tested flow the Motorcraft OEM flowed only a little less than the K@N. Air filter tests can be found at bobistheoilguy.com.

 

[Hot 6t Falcon]

Howdy again,

The YF was "the" carb from 1970 to 1979.

It is 150 cfm on the 170

It is 187 cfm on the 200

It is 195 cfm on the 250

Good luck with your project.
Dennis

 

[250coupe]

is 215 good, bad, or decent

 

[ludwig]

More is better in CFMs. Until you are overcarbed. That won't hit until the high 300s.

 

[250coupe]

whats the most cfm a 1bbl can flow. are there some over 215 that would fit on my engine?