Yeah... I remember playing with old "dumb" EFI back in the 80s. It sucked. Those Delphi bikes would run better yet if they had carbs.

 

Since ur bike is a J1850 system (aka 4pin). Plz don't ever go with the Fp3. (If u read my posts abt how V&H don't want to support their product and fix their flaws). Lessons learned.

only two words like others have mentioned above "Power Vision" from fuel moto.

plz ask me why n I'll tell you. Cheers

 

OK, I'll bite (even though you seem to know a helluva lot more about this thing than me)...."why?"

 

Alright, here's some of the pudding of the proof..it's good read, enjoy

 

Thanks for combining from the other posts. It's strange how V&H would put a blatant disregard for customer service in writing like this...

The PV-2 with Fuel Moto tune worked great for me, and their customer service is great.

Has anyone had a significant boost using the target tune for power vision?

Fuel Moto's page for the Dynojet-target-tune-for-power-vision

 

I use the Thundermax system. It comes with wideband O2 sensors and is a replacement ECM instead of being a piggy back tricking the stock ECM like the PV and FP. It also has a pretty good self tuning system that runs while riding the bike anytime. Just set the target AFR by throttle position, allowable adjustment parameters, and check it every once in a while to set the MAP adjustments, clear the adjustments since last MAP write, and adjust AFR/adjustment by temp/other parameters if necessary. Their stock maps all run pretty rich but there are some good videos on YouTube to educate on what is where, what it does, and how to adjust it.

 

You don’t need to have the PV connected if you don’t want to, so it’s not a piggyback. I have mine connected tho. I use it as a gauge(speed and rpm) together with throttle position, battery level, engine temperature and gear indicator. Everything is customizable.

In general, the best tuner is the one that have the most users. That way you get more diverse maps that people shares with each other.

 

Any system that requires adding modified feedback to the ECM through an external device to get wideband O2 sensors added is a piggyback system in my book. The PV requires adding their Auto-tune micro between the O2 sensors and the PV to give modified feedback to the ECM. The PV by itself is just a tuner which sounds like it might fit what the OP wants though.

 

Ok, I thought the definition of a piggyback is something that had to be connected to the bike at all time, like a power commander.

 

The PV (Power Vision) is a flash tuner. When you add the wideband sensors, they help it build more accurate AFR tables to flash to the ECM. Same as a dyno, they shove a wideband sensor into the exhaust to get an accurate AFR. I believe the Thundermax operates the same way? The wideband builds tables, which you flash to the Thundermax ECM, or is it real time? Either way, I am a fan of a wideband system.