Engine CFM

[pork]

How much volume off gases and at what pressure comes out off an ma10 engine?

 

[frank]

pressure in the exh mani neil ? and 150 cfm ?

 

[pork]

Yeah, jus wanted to know what pressure and at what rate it comes out,

150 CFM! Really ?

 

[frank]

you,re the compressor engineer lol , and the pressure depends on the size of the orifice surely ?
a straight through exh will be pretty low and pulsed eh, but fit a T15 turbine and it will hit 100 psi maybe ?

 

[pork]

Haha, true, tge biggest machines I deal with are about 200 CFM, but that is a 50 hp electric motor at 8 bar, so does this equate to a 50 hp engine?

 

[frank]

1L engine will exhale 1L of air per 2 revs eh (if the VE is 100%)
times that by the rpm
then divide it by how many L in 1 Cu ft

 

[pork]

Only reason I'm asking coz I wondered of I could conduct some bench tests with an air compressor to see how good the turbo actually is. ( I get bored quickly when I've run out off things to do!)

 

[frank]

you would have to spin it to 100k rpm somehow eh !

 

[pork]

There's 28,316 litres In a cubic foot

So 1L x 6000 rpm divided by 28.316 = 211.9

That right? I'm confusing myself now

 

[frank]

There's 28,316 litres In a cubic foot

So 1L x 6000 rpm divided by 28.316 = 211.9

That right? I'm confusing myself now

dunno lol, the VE will only be about 60% @ 6k rpm tho i think mate

 

[pork]

dunno lol, the VE will only be about 60% @ 6k rpm tho i think mate

But what about with the aid off a turbo, won't that % be nearer 100%

Sorry if I sound foolish, trying to teach myself stuff

 

[frank]

But what about with the aid off a turbo, won't that % be nearer 100%

Sorry if I sound foolish, trying to teach myself stuff

aye a tubby can double your VE easily eh neil

 

[pork]

you would have to spin it to 100k rpm somehow eh !

So it's not just a case off sticking turbo on the end off a big ass compressor then lol?

 

[frank]

like a vortech supercharger eh neil, get a mofo 12v motor to spin a TD06 @ 100k

 

[pork]

like a vortech supercharger eh neil, get a mofo 12v motor to spin a TD06 @ 100k

The idea was, find the output CFM of my engine, then attach it to airline off compressor matching that, then measure the output off the turbo

Jus coz lol