Volumetric efficiency

[Coron]

Hello all,
Ok im trying to workout the volumetric efficiency of my standard 1750 GTV
the measurements i need are CID (cubic inch displacement) and CFM (cubic feet per min) of air at a given RPM (revs per min)
the CID is easy. the probs im having is getting the CFM and RPM because my RPM gauge is for lack of a better word "buggered" for the moment, also how do i workout my CFM? is there a tool to do this? or do i need to jimmy rig a CFM meter from an efi system onto the standard airbox? maybe i take a carb air flow meter and multiply the reading by 4? (dont have one, i tune by hose and ear, something my grandfather taught me at 10 years old before he passed)

in the future i will be building an engine for the track, but for now im looking for power where i want it in the rpm range (5.5-7.5 k rpm) and theoretically i can do this by changing the length of the intake runners (ram tubes or velocity stacks) but to workout where my current power-band is and to workout where i need to go with my setup i need some figures, CFM @4000-5000-6000-7000-8000 RPM range, can someone tell me how to work this out or can someone give me some rough figures for a standard 1750 so i can go from there.

I might be wrong about the intake length but im not asking if im right or wrong about intake length (the figures will tell me that) im just asking about CFM @ at a given rpm, please help me work it out for a standard 1750.

all criticism and advise welcome

Thanks guys.
Harry

[Coron]

Comon guys, all i need is someone to put there carb balancing tool on a single throat of a standard well tuned 1750 and give me the kg/h of air entering the intake at 1000 RPM intervals as well as rough temperature, i can do the math i just need the readings.

Thanks guys.

Harry

[Colin Byrne]

All thats going to do is give you air flow rate at part throttle and I'm tipping your after WOT so your going to need a dyno, or be able to run really fast beside the car.

[Coron]

  ah ha, i see, thank you for clearing that up for me Colin, so i will have to wait to get it on the dyno
its just so damn frustrating, you go looking for these formulas to work everything out then they tell you to just "download this program and plug your laptop into your ECU".........
so when i go to the dyno to get my power figures i need to take a carb balancer/carb air flow meter and get the dyno guy to give me the kg/h at different RPMs under full load and WOT?
im sure someone else has workedout the volumetric efficiency of a standard setup 1750 ... any info people can provide will be very helpfull

Colin, are you the guy that lives in inner west melb that drives the yellow gtv race car with a few vids on youtube?

Thanks guys.

Harry