how to calculate blown engines carburation?
11-14-2002, 02:48 PM
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how to calculate blown engines carburation?
how to calculate blown engines carburation?
thnx
ps: no current engine for the moment.know the formula for non-charged.what is it for charged?
thnx
ps: no current engine for the moment.know the formula for non-charged.what is it for charged?
11-14-2002, 03:11 PM
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Thats easy BIG. Check with Dean at www.nickersonperformance.com he is THE man when it comes to blower carbs.
11-14-2002, 07:49 PM
#6
CFM or what size of carburetor is what I mean. If you are looking at how to set them up jet sizes etc there are many variables that need to be considered. If your guessing I would leave it to the experts. 
This is out of an old BDS Blower book I have. What carbs do I need to run and why 2 of them?
The size of carb(s) or CFM required for a given application can be calculated by the following formula:
[(CID x RPM) divided by 3456] x [(Boost divided by 14.7) + 1] = CFM required.
The amount of CFM required will determine carburetor size and quantity. If you try and use a carburetor with less CFM than required, performance and economy will be greatly reduced.
This is out of an old BDS Blower book I have. What carbs do I need to run and why 2 of them?
The size of carb(s) or CFM required for a given application can be calculated by the following formula:
[(CID x RPM) divided by 3456] x [(Boost divided by 14.7) + 1] = CFM required.
The amount of CFM required will determine carburetor size and quantity. If you try and use a carburetor with less CFM than required, performance and economy will be greatly reduced.
11-15-2002, 08:54 AM
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ok i know the first part; volumetric efficiency ia taken at %100 in this formula...
according to this back4more should have 1250-1350 ...he has 1335 ..its ok.
paradigm : it looks like you are over-carburated..
according to this back4more should have 1250-1350 ...he has 1335 ..its ok.
paradigm : it looks like you are over-carburated..
11-15-2002, 09:02 AM
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why i am asking these questions : reason is :
i saw a 502 cuin blown engine 8 boost with twin 1050 dominators on top of it.its a marrine engine.rpm 6000.
?!?
any comments on this?
i saw a 502 cuin blown engine 8 boost with twin 1050 dominators on top of it.its a marrine engine.rpm 6000.
?!?
any comments on this?
