[Diy_efi] Importance of TPS with lightweight cars

[William Shurvinton]

I'm well ware of the need for alpha-n operation on bikes at low speeds
having helped put one of the MegaSquirts on a fireblade. However I'm less
concerned with air velocity issues and more concerned with the best tuning
approach. Still answers the question why bikes have MAP sensors connected to
the runners, which I had wondered about.

Bill
----- Original Message -----
From: "Adam Wade" <espresso_doppio at yahoo.com>
>
> Most bikes don't have acceleration tables AFAIK.  They
> run TPS almost exclusively at small throttle openings,
> and MAP/IAT at wider throttle openings and higher
> rpms, in most cases.  Since the vehicles are light and
> the engines have low inertia, there is very little
> drop in airspeed when one whacks the throttle open
> (except at very low RPMs), and as long as the
> injection is efficient at lower airspeeds (i.e.,
> injector is as close to the intake valve as possible),
> there is no problem.



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