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Old 03-11-2015, 12:01 AM   #164 (permalink)
IamIan
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Quote:
Originally Posted by oldtamiyaphile View Post
I know, but with a 5-6 speed manual I have little trouble staying on that BSFC island and then it's just a matter of watching load.

Sadly no BSFC graph can be found
How can you possibly know you are in the high efficiency BSFC island if you don't have the BSFC of your ICE to know where that island is ???

Each ICE differs significantly.

Quote:
Originally Posted by oldtamiyaphile View Post
hybrid could still artificially add/reduce load, which the ICE can't.
Yup.
That's the same kind of HEV advantage for better potential P&G I mentioned previously.

Quote:
Originally Posted by oldtamiyaphile View Post
You'd end up at least 150kg lighter than the Fiat, and the CD would go from .36 to .25(?), slightly smaller frontal area too. Teamed with suitable gearing, I can't imagine why that combo wouldn't beat the original Fiat engine donor by some margin.


Quote:
Originally Posted by oldtamiyaphile View Post
It would actually accelerate better than the Insight too.
Maybe.
That will depend on what the Low RPM torque output is of that other ICE you want to transplant ... not the peak best case for that ICE , but the low RPM case ... the IMA HEV system in the Insight provides a large amount of low RPM torque ... around doubling the torque from the ICE at some points.

Do you have a RPM vs torque graph for the ICE in order to compare?
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