Re: Cart first, then horse . . . . . .
Yeah, yeah, I know – I said “Horse FIRST, THEN cart.”
But sometimes you have to clean out the stall, and when the cart is in the way, well, you just have to deal with it.
The high fallutin' call it by the glamorous term: "mucking out". . . . . . . I guess when you don't have to shovel or smell the horse sh**, you might want to call it "muck" . . . . . .
Some, sort of random, thoughts about "Krover", using the Suzuki example you emailed me . . . . . . . .A/ Well, using the MB power conversion formula: if the 191 bhp was developed @ 15,756 rpm, just a reduction to 10,504 rpm would drop the power to 127.4 bhp . . . . . .
and that's linear. From 191 bhp/litre.
2/ The time tested Cosworth output @ 10,500/11,000 rpm is/was 170 bhp/litre, mechanically INJECTED. Holds true for a number of Cosworth variants, all INJECTED.
INJECTED it's going to have to be, AND TUNEABLE, within the resources you have/can afford. So a stock m/cycle setup MAY work, BUT, it needs to be TUNEABLE.
I don't know enough about their injection controls to have an opinion, BUT, I know OEM engineers don't like peons messing around with their fuel/ignition mapping.
It would be smarter to start with a "TUNEABLE" sytem, rather than trying to change a factory ECU.
Recalling that I recently promoted myself from "Captain Obvious" to "Major Pain", I want to point out that sometimes guys try to use stock/std parts for racing
applications, for reasons of economy. Speaking for myself, I am weary of being bitten in the a** by "economy".
Unless, . . . I get a promotion to "General Soreness".
d/ If you take the reasonable output numbers from the "K engine page" which is circa 1999, they seem to be around 140/145 bhp/litre. If you factor that by a rpm
reduction from 10,500/11,000 rpm, to say 9500 rpm, (.90476) then 140 bhp becomes 126.6 bhp, very close to the 127.4 bhp above.
I'm thinking that a reasonable target for the first iteration of "Krover" would be 125/130 bhp @ approx. 9500 rpm. 80 ish ft/lbs torque, 7000/7500 rpm? EWAG on my
part. More information on the limitations of "the kettle" need to be gathered, more numbers need to be crunched. But, "Captain Obvious" thinks 125/130 bhp makes
the
"milwaukee midget" a 125/130 mph "cart".

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