spooled_u_1st
15+ Year Contributor
- 331
- 16
- Aug 27, 2006
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Pittsburgh,
Pennsylvania
Does anyone have Mazda Rx7 680cc/min 195500-0900 fuel injectors running with ecmlink?
1984-85 RX-7 195500-0900 Peak and Hold 680cc Orange Top
Found this thread in the EcmLink Forums. Anyone else have any info?
TSiTalon9587
Your global setting for 680's @ 37psi should be -33~34 or so.
If you were to run these injectors at 2g base pressure, (~42), these will yield an actual flow of 724.5 cc/min. With the different base pressure setting, your global setting will obviously change, and be slightly more; Moved to -38 respectively.
flinguist
I just got them back from being serviced, and they flowed 980 cc/min at 45 psi.
TSiTalon9587
Here is how I figured the new injector flow based on the increase of fuel pressure.
newflowrate = (oldflowrate * (Sqr(newpsi / oldpsi)))
(If anyone objects to this, let me know, I am open to opinion )
This is how I yielded the new flow of 724 and change. But, it seems that your injectors flow much more then you said before. I have a program that I wrote that does all this for me, (not excell). FWIW, your injectors at 43.5psi base is 963.5 cc/min as per that equation. Good luck with them.
http://www.dsmlink.com/forums/showth...ht=195500-0900
1984-85 RX-7 195500-0900 Peak and Hold 680cc Orange Top
Found this thread in the EcmLink Forums. Anyone else have any info?
TSiTalon9587
Your global setting for 680's @ 37psi should be -33~34 or so.
If you were to run these injectors at 2g base pressure, (~42), these will yield an actual flow of 724.5 cc/min. With the different base pressure setting, your global setting will obviously change, and be slightly more; Moved to -38 respectively.
flinguist
I just got them back from being serviced, and they flowed 980 cc/min at 45 psi.
TSiTalon9587
Here is how I figured the new injector flow based on the increase of fuel pressure.
newflowrate = (oldflowrate * (Sqr(newpsi / oldpsi)))
(If anyone objects to this, let me know, I am open to opinion )
This is how I yielded the new flow of 724 and change. But, it seems that your injectors flow much more then you said before. I have a program that I wrote that does all this for me, (not excell). FWIW, your injectors at 43.5psi base is 963.5 cc/min as per that equation. Good luck with them.
http://www.dsmlink.com/forums/showth...ht=195500-0900
