Benzinpumpe gesucht
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growdaweed
- Beiträge: 561
- Registriert: Sa 2. Nov 2002, 01:00
- Wohnort: NOM
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Hier ein Zitat wie die EFI bei ihm so läuft:
I have to say that the EFI project on my RZ350 has turned out way better than I had expected. I have heard so much about the "brick wall" and I have been wondering where it is. So far, the only problem I have had is chopping throttle from moderately high RPMs. This seems to be a fuel map tuning related issue as I have eliminated it for the most part. I'm still working on > 10k to closed throttle. It gets better every time I get a chance to data log and make adjustments.
I started with a overly rich fuel map so that I didn't melt things down. My first challenge was to get the bike to crank. Then to idle. Several thousands of kicks later, I accomplished this. smile.gif Then I worked my way up from idle to low load conditions. Eventually, I got to WOT throughout the entire rev range. But each step I made, I had to work on the low pressure bins at the bottom of the map to rid myself of the throttle chop symptoms. The engine would simply load up. Leaning the low pressure bins gave the desired effect.
I did all of my tuning with a wideband O2 sensor. The sensor has worked more than 80 hrs. so far. Unleaded fuel, of course. However, I do not plan on running a closed loop system. And I'm running the stock oil injection system, so I do not know how well one of these sensors would fare with pre-mix. After studying the 2 stroke vs. wbO2 issue, I gleaned that proper placement of the sensor is very important so as not to "sample" a fresh charge that may be in the header. Also, the oil may produce a pocket of gas around the sensor head (at less than high loads) that could lead to a slightly rich reading.
I've read the descriptions of the 'brick wall' problems and I must confess that either I'm not comprehending the explanation of the symptoms or I have indeed not experienced them. I may have an explanation for the latter, if that is the case. I'm running throttle bodies with CV slides in them. The CV slides may completely change the dynamics. I don't profess to know, however. I have ordered some Grave's slide stops to completely open the slides so that I can test this theory.
Other than that, I may have just gotten lucky. smile.gif
Right now, I'm running a full Speed Density system. I had thought I would need to run the Alpha-N blend as mentioned above. But so far, I have not seen the need. But if I experienced problems that could not be worked out with the alpha-N/SD blend, I figured I would go hacking the firmware of the MegaSquirt. To this point, I have had no throttle response issues. I'm not even running any form of accel enrichment. Although I don't consider the bike to be running "perfect" at this point either. But let me just say that it runs a hell of a lot better than a poorly jetted set of carbs. It really does run rather well. A less discriminating rider may not feel the need to change a thing on it as it sits. The best thing about it is that I no longer have that 5k stumble that these RZs are so prone to have.
I have to say that the EFI project on my RZ350 has turned out way better than I had expected. I have heard so much about the "brick wall" and I have been wondering where it is. So far, the only problem I have had is chopping throttle from moderately high RPMs. This seems to be a fuel map tuning related issue as I have eliminated it for the most part. I'm still working on > 10k to closed throttle. It gets better every time I get a chance to data log and make adjustments.
I started with a overly rich fuel map so that I didn't melt things down. My first challenge was to get the bike to crank. Then to idle. Several thousands of kicks later, I accomplished this. smile.gif Then I worked my way up from idle to low load conditions. Eventually, I got to WOT throughout the entire rev range. But each step I made, I had to work on the low pressure bins at the bottom of the map to rid myself of the throttle chop symptoms. The engine would simply load up. Leaning the low pressure bins gave the desired effect.
I did all of my tuning with a wideband O2 sensor. The sensor has worked more than 80 hrs. so far. Unleaded fuel, of course. However, I do not plan on running a closed loop system. And I'm running the stock oil injection system, so I do not know how well one of these sensors would fare with pre-mix. After studying the 2 stroke vs. wbO2 issue, I gleaned that proper placement of the sensor is very important so as not to "sample" a fresh charge that may be in the header. Also, the oil may produce a pocket of gas around the sensor head (at less than high loads) that could lead to a slightly rich reading.
I've read the descriptions of the 'brick wall' problems and I must confess that either I'm not comprehending the explanation of the symptoms or I have indeed not experienced them. I may have an explanation for the latter, if that is the case. I'm running throttle bodies with CV slides in them. The CV slides may completely change the dynamics. I don't profess to know, however. I have ordered some Grave's slide stops to completely open the slides so that I can test this theory.
Other than that, I may have just gotten lucky. smile.gif
Right now, I'm running a full Speed Density system. I had thought I would need to run the Alpha-N blend as mentioned above. But so far, I have not seen the need. But if I experienced problems that could not be worked out with the alpha-N/SD blend, I figured I would go hacking the firmware of the MegaSquirt. To this point, I have had no throttle response issues. I'm not even running any form of accel enrichment. Although I don't consider the bike to be running "perfect" at this point either. But let me just say that it runs a hell of a lot better than a poorly jetted set of carbs. It really does run rather well. A less discriminating rider may not feel the need to change a thing on it as it sits. The best thing about it is that I no longer have that 5k stumble that these RZs are so prone to have.
Ob wir Wetten sollen wer schneller fertig ist:Rüdi hat geschrieben:..."die paar Jahre" extra-Wartezeit ...
1.) KTM mit neuer Einspritzung und Homologation für Deutschland und Österrreich
oder
2.) MB mit dem Umbau deiner 1WW den er als eigenen Standard anbietet.
OK...lassen wir das bevor Du noch kränker wirst und mit Benzinpumpen hat das ja gar nix zu tun.
ciao
Anderl