max fuel quantity clipped WOT

For discussing MicroSquirt (TM) configuration and tuning of fuel parameters (including idle valves, etc.).
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evanevan
MegaSquirt Newbie
Posts: 20
Joined: Mon Sep 07, 2009 6:35 pm

max fuel quantity clipped WOT

Post by evanevan »

I am running a 2002 yamaha r1 with the microsquirt, bosch ignitor, stock independent throttle bodies & injectors mounted straight to an ITG air filter (no plenum). When I floor the throttle it occasionally picks up pretty well, but most times it coughs and chokes back down to cruising rpm. I took some logs and attached my msq. I am wondering if the max fuel delivery is being clipped by the required fuel set to 9ms or if I have an injection control/characteristic issue? Is MAP controlled fueling an issue with the plenum removed? (overall resolution is 68-102kPa, but then it can be only 96-102kPa between cruising and WOT).


Please post if you have had similar issues, engines, or if you're just a software control expert :D
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ACCELS.msl
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CurrentTune.msq
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Bernard Fife
Super Squirter
Posts: 1009
Joined: Mon Feb 16, 2004 3:15 pm

Re: max fuel quantity clipped WOT

Post by Bernard Fife »

evan,

It sounds like you need to tune the accel enrichments: http://www.megamanual.com/mt29.htm#tl

With the limited MAP range, I would concentrate on TPSdot tuning.

Lance.
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