I used it for a bit, was getting bad gas mileage. I took it out. Have only put on a few hundred since doing so, not sure of avg mpg yet.
Not as hard off the line, but I'd rather have the distance per tank.

I have been doing a 150 mile commute the last few weeks and it sucks barely making a round trip. I'm hoping to be in the 40's again.

 

Thanks Rhubarb You sumed it up pretty good. I have been trying it out . Bad A## off the line,But like you said my gas mileage went way down.

[IMG]local://upfiles/19981/FA9EBD6E28ED4F74B4E5B4DCEF52093A.jpg[/IMG]

 

Mine's coming in probably today and I've been reading what little is available for documentation. I see info on loading maps, setting 0% and 100% throttle, etc., but nothing about fine-tuning the air/fuel ratio, ignition timing, idle speed, etc. Can this be done?

Also, can the A/F mixture be adjusted (low, middle, high) with the dashpots on the outside of the unit to fine-tune a map? I can find no info on any of this anywhere, and I'd like to find complete documentation.

 

Dont use the pots... use the software.

Its like a spreadsheet with engine rpm going down the left, and throttle position across the top.

Each value is a representative of a percent over what is on your ECM (stock or flashed with stage 1 or 2).

You can change the values up and down in increments of 1%. You can set the fuel 5% richer at 20% throttle and 2000 RPM for example and 5% leaner at 40% throttle at 2000rpm if wanted. -5% would be leaner.

You can also change timing on the second tab. That one is pretty self explanatory as it is in degrees vs %. You are capped at 15 degrees up or down from what is on your ecu.

RevXtend is in the advanced features and even though it looks like you can put in any number, it will only take the default stock, or the raised max.

If you need more details, just say so and I will do my best to explain.

 

Hi guys here is a rant from a tuner which explains a lot about gas millage and how you should ask your tuner to set up yor bike for the best of both worlds, hope he dosnt mind me quoting him but it was one of the best explanations I had ever read on the hows and whys of tuning


they want the most performance that I can give them...the only way I can do this is to adjust the A/F ratio to the rich side...THIS IS GOING TO BRING YOUR MILEAGE DOWN...simple physics...

I see alot of people concerned about a flat A/F line...let me tell ya right now that is a good thing if ya are looking for peak performance...IT IS A BAD THING if ya want gas mileage...

An A/F line for good, not peak, performance and good, not best, mileage should look like a set of 3 very short and progressively wider stair steps...

There should be a cruise range - 30-40% throttle up to around 3500 - 4000 rpm that is set in the 13.8:1 - 13.6:1 area. This is rich enough to not harm your bike, but lean enough to get your mileage up into the 40mpg's...this will let you cruise at the 70-75 mph range.

There should be a range - up to 80% throttle to 5500 rpm that is set in the 13.2:1 range...yep it takes more gas, but this is what makes it fun playing green light grand prix.

And last there is the power range 100% throttle to rev limiter that is set at 13.0:1 - 12.8:1. This one really sucks the fuel.

I suggest the first thing anyone should look for is a tuner that talks with you the customer...it is not hard to tune YOUR bike to the way YOU want it, if I know what you want...ya might have to hang around till they free up, but, if they ain't got time to talk to you then, find another tuner.....

 

This has to be done even with a PCIII ordered from Jamie? I thought they came pre-programmed.

I don't have a laptop.

 

they are pre programed from Jamie, but throttle position is based on your bike specificially you may have to do what I did before I bought my son a laptop and ether setup your desktop temporarily in the garage or pick up a cheap used computer, as long as it has a usb port it can be used it doesnt have to be fast. the bike can be ridden even with the throttle posision a little off untill you can get it reset

 

Your map might be perfect, but your throttle wont be.
I had to adjust mine some for popping, and I'm going to try to lean it out some in the cruise range.

 

Ricks07,

where in Ca do you live? If its nearby me, I can swing by with a laptop. If not, I'm sure someone in your area can help.

 

I'm in Brea. I have a nephew who is going to bring over his laptop. Thank you for the offer however, I really appreciate it.