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Old 04-10-2005, 06:51 PM   #1
FRSTi
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2011 EDM STi sedan
1998 JDM 22B STi

Question Ecutek & PE800 injector scaling/calibration

Hi there,

I installed a set of PowerEnterprise 800cc top feed injectors on a 2.0L (PE ref. TH800F), and I was wondering if someone in here had any experience with these after using Ecutek remap.

PE is stating a 1.6ms reaction time.
Is there anyone here using this time compensation plus a 800 injector scalling to match "virtual AFR" in the 3D fuel map ?

I actually run stock injector opening time comp. and a 595cc injector flow scalling with those 800cc to match the close loop targets, but I experience some strange results at high loads, open loop, above 40C IAT...

As summer is getting closer, it is time to react
I would appreciate some positive comments before I start back from scratch in the fuelling maps.

Thanks !
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Old 04-13-2005, 04:49 PM   #2
FRSTi
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Old 04-13-2005, 05:30 PM   #3
EMS
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I didn't map the PE800's, so I can't give you exact data, but I did PE650's which have about the same reaction time. When you increase the inj. opening time compensation, you have to increase it the same %-tage at every voltage. You have to increase the opening time compensation quite a lot with the PE injectors! (I don't have the exact data here, but it's about double the value from standard) Changing of the opening time compensation value will have a big influence on the mixture under low engine load and less under high load. At this moment you will run WAY too rich at high loads! Increase opening time compensation and injector scaling.

Mark.
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Old 04-13-2005, 07:35 PM   #4
R4ND0M_AX3
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Quote:
Originally Posted by EMS
I didn't map the PE800's, so I can't give you exact data, but I did PE650's which have about the same reaction time. When you increase the inj. opening time compensation, you have to increase it the same %-tage at every voltage. You have to increase the opening time compensation quite a lot with the PE injectors! (I don't have the exact data here, but it's about double the value from standard) Changing of the opening time compensation value will have a big influence on the mixture under low engine load and less under high load. At this moment you will run WAY too rich at high loads! Increase opening time compensation and injector scaling.

Mark.
Mark,

Do you know at what voltage PE quotes their injector delay at? Is it 12V or 13.8V or something else?

Ideally I'd like to find a chart to look up for different votages but what you did with the percentage change should get me close.
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