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Originally Posted by Daox
If you can get a dyno graph for your car (search online, use gtech or similar device, or dyno) you should be able to tell when you achieve maximum torque. At WOT plus at peak torque is going to be where your optimal BSFC is. With the dynometer graph of torque you can see what rpms you should be keeping the engine in for peak efficiency (still in WOT). I did this with the Paseo recently and it seemed to return roughly 4% increase in fuel economy (48 to 50 mpg). In my case I actually had to increase the rpm range in which I had been driving.
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Originally Posted by MetroMPG
Straight-3 welcome to the forum. I was surprised to discover this
week that even 2400 RPM may not be in the best BSFC area for our engines. Tasdrouille found a Geo 1.0L map, and it suggests 3k rpm may be the middle of our (very narrow) best BSFC island. |
Thanks for the welcome.
I was never able to find any torque/power curves or BSFC info published for the suzuki3. If 3000 rpm should be my target I may not ever even use 5th gear! Now I'll have to figure out where to shift again.