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Old 03-09-2009, 12:37 AM   #62 (permalink)
dremd
EV OR DIESEL
 
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Quote:
Originally Posted by eyesoreracing View Post
MetroMPG,

We started with BSFC because DSFC would require that we know a lot more about rolling and aero drag than we could ever possibly know, considering the car wasn't built yet. Correct me if I'm wrong, but it seems to me a DSFC map could really only be made after the car exists and its drag properties are known.

Besides, just looking at BSFC smacked us up against the tallest gear available, so there didn't seem to be any purpose nerding out over it any longer. Does it really matter if the ideal gear ratio is 10% taller than the tallest we can get, or 15% taller?

Educate me if I'm just being dense.

-Dave Coleman

In a Nutshell, that BSFC (Brake Specific Fuel Consumption Chart) and all others measure Fuel used at RPM with Max Load; so unless you guys are planning to tow something rather boxy around you will be turning the ALH far to quickly.

If you check out the Gear Threads on TDIClub you can get a idea on what gears do what (atleast with the MKIV body).

However with (what I can only assume) will be a low drag shape you will want to turn the ALH much slower, unless you just like P+G.
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