VE calculations from torque graph and manifold pressure.

Stuart Bunning stuart at kenelec.com.au
Tue Feb 2 03:53:12 GMT 1999


Given the fact that I have a DYNO torque curve of a motor over it entire RPM
range for WOT 
I should be able to convert torque to VE as they are essently the same thing.
I would first assume for arguement sake my moter is 100% efficient at max
torque to simplify calculations and tweek it later.

With the above results I should be able to build one column in my VE map in
my 808 ECU. 
Would it be possible to somehow via math's calculations to work out (roughly) 
The VE numbers for all other load conditions. 

For example if at 3000RPM I have maximum torque at WOT 100% efficient could
I assume
that at 50KPA it would we only 50% efficient,25KPA 25% etc...

Will this work ( for atleast a means to build a CRUDE!!! VE map so I can
atleast start and drive the car slowly???)

I am starting from scratch generation a VE as the motor I have put EFI on
never had it from the factory so I don't have a factory MEMCAL to tweek...









Best Regards,

STUART BUNNING
SALES ENGINEER
KENELEC PTY LTD

23-25 REDLAND DRIVE
MITCHAM VICTORIA 3132
AUSTRALIA

PHONE:  61 3 9873 1022
FAX:    61 3 9873 0200
EMAIL:  stuart at kenelec.com.au
WEB:    http://www.kenelec.com.au/




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