Flowbench question?
 

was wondering if anybody knows how to convert percentage to cfm? example flowing 50% on a test pressure of 5 on a superflow 110?

Re: Flowbench question?
 

What range are you on? It all depends on how many of the upper holes are open. Sounds like you don't have your instructions. I still have mine from when I got it. If you need a copy or I can help you at all, let me know! Bob Moulton bmre1173@verizon.net

Re: Flowbench question?
 

Should be a simple to use flow chart with the instructions.

Re: Flowbench question?
 

In your example, 50% @ 5" H2O, you would:

1) Check the flow range (based on the rubber stoppers removed).

2) Multiply the flow range by 50%. This is the uncorrected flow at 5" H2O.

3) Multiply the uncorrected flow value by the "temperature correction factor" in the chart. This is the corrected flow value at 5" H2O.

4) To convert the flow to a different depression (i.e. from 5" H2O to 10" H2O):
* Multiple the flow value in step 3 by the square root of 10/5.

So, let's say you where testing an intake port using the 105 cfm flow range and you got a reading of 50% with a 10 degree difference on the thermometers. Your corrected flow at 10" H20 would be:

105 x 0.50 x 0.992 x (10/5)^0.5 = 73.65 cfm @ 10" H20

if you wanted to correct the value to 28" H2O:

105 x 0.50 x 0.992 x (28/5)^.5 = 123.24 cfm @ 28" H2O

Here is a link to a set of instructions in case you don't have them.

http://www.freewebs.com/jawa634/supe...ing%20ocr).pdf