Typical ignition timing response to throttle snap?

[Jim Sloan]

On the Syclone, a throttle snap triggers power enrichment mode. There is a
separate table for power enrichment contribution to spark advance. It is
plotted against rpm. Stock contribution is 2.11 degrees I think.

There's more in the P4 document.

Jim Sloan
leroy at sunflower.com
Syclone VIN# 1206
http://www.sunflower.com/~leroy
Lawrence, Kansas

> -----Original Message-----
> From: owner-gmecm at esl.eng.ohio-state.edu
> [mailto:owner-gmecm at esl.eng.ohio-state.edu]On Behalf Of PHXSYS at aol.com
> Sent: Saturday, September 25, 1999 11:50 PM
> To: diy_efi at efi332.eng.ohio-state.edu; gmecm at efi332.eng.ohio-state.edu
> Subject: Typical ignition timing response to throttle snap?
>
>
> HI everyone
>
> I was wondering  what effect rapid throttle movement has on
> ignition timing.
>
> I know that extra fuel is injected when the throttle is quickly
> depressed  to
> improve throttle response. Are there any ignition timing events
> that occur at
> the same time to also improve throttle response?
>
> Do you get a little extra advance during TPS event or what?
>
> Thanks
>
> Jon
>