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2g maf and evo 560's safc help

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snowboard1

15+ Year Contributor
70
0
Aug 9, 2004
West Newton, Pennsylvania
My pocket logger has just broke and Im in the mist of tunning my car with my safcII.
I am running evo VIII 560 injectors and a 2gmas on my 1g.
I have my safcII leaned out 3% across. (-25% for the injector)+(22% for the 2gmas).
I was wondering if any of you guys have this setup on there 1g and could help me out with afc settings?
Any help would be great. Thankyou.
 
The injectors are really only 550's and the compensation for them should be -18%, as long as your fuel pressure is at 37 psi. Without the datalogger you're really flying blind and your guess is as good as any of ours would be.
 
What's wrong with the pocketlogger? Palms are really cheap for an M100 series... that's really all you need.
 
Evo 560's actually flow more like 580cc..the other thing about them is their deadtime is actually faster than stock, I believe it's about -40 (µsec?). This will cause the car to run slightly richer at idle than at other airflow points.
 
eclipsegsx1736 said:
Evo 560's actually flow more like 580cc..the other thing about them is their deadtime is actually faster than stock, I believe it's about -40 (µsec?). This will cause the car to run slightly richer at idle than at other airflow points.

When I used them with Dsmlink I came up with 18% correction just like 550's.
 
eclipsegsx1736 said:
Evo 560's actually flow more like 580cc..the other thing about them is their deadtime is actually faster than stock, I believe it's about -40 (µsec?). This will cause the car to run slightly richer at idle than at other airflow points.


He has a 1g. Less base pressure, hence the injectors not running what they would on a 2g or evo.
 
I am presently running the same basic setup on my 92 VR4 and my settings are way different.
My exact setup is
Safc2, EVO 560 injectors (38psi base), 2G Mas, Stock chip.
I am also using an AEM wideband + MMCD to log.

The settings I ended up having to use on mine were in the region of -30% or so across the board for all of my high settings. This strikes me as strange as the calculation above shows that mine should have detonated its head off long ago.

But, I wouldn't be trying to tune it again until you get your logger going!

Tim
 
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