[Diy_efi] :dynos and tuning

[William Shurvinton]

I guess so, but you might end up needing more gears than I have and you may
have to trade flexibility.

Also you have to know what the desired TPS% vs power curve in each gear
looks like and for a street driven car that has to relate to how you want it
to behave. I appear to have steered this thread  into the 'drivability'
domain.
----- Original Message -----
From: "Adam Wade" <espresso_doppio at yahoo.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, December 19, 2002 10:46 PM
Subject: Re: [Diy_efi] :dynos and tuning


> --- William Shurvinton <shurvinton at orange.net> wrote:
>
> > However at low throttle openings many engines are
> > very tolerant of huge variations in AFR, so
> > you 'MIGHT' want to tune the 8HP point for 15%
> > throttle. This way you get reduced pumping losses
> > therefore better gas mileage and possibly more
> > drivability. This is a 'street' thing as race
> > drivers want power and throttle response.
>
> Wouldn't you get basically the same effect by changing
> gears so that you had an engine speed where your
> desired throttle opening corresponded to the power
> output you desired?



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