[VTSpyder]

Hey everyone! I wanted to share my experience to date with tuning the JB Pro with an "Air/Fuel" Gauge. There is virtually zero info about how to go about doing this and I believe the JB Pro shines when paired with a good wide band AFR Gauge. It is virtually impossible to get an accurate tune without either a Dyno or an Air/Fuel Gauge. I cover installing the wide band O2 sensor as well and offer tips to make it a breeze. I'm getting 36mpg with ferocious acceleration. I am still working on a custom map and will be developing better parameters in the 5000 to red line range. Low to mid is pretty much complete. Please keep in mind I have a custom built air box with a 3" pipe to a high flow K&N filter and cold air supply. It flows substantially more air than the stock air box. Especially at speed.

1st I began with the JB set to map 3.
2nd I increased the mapping 30% across the board
3rd I used the AF Gauge to tweak the settings + or - at each throttle position and rpm based upon what I was seeing on the gauge for that range.

The Spyder has a stock AFR of 14.7:1 and the Juice Box Pro has a target AFR of 13.6:1
The major benefit to the gauge is that you know when and where in the spectrum you are running a lean or rich condition. Also keep in mind that the Spyder's ECM seems to do a good job of compensating in the upper rpm ranges so a little change can go a long way.

I hope this helps answer some questions about the JB Pro. Even 2 Brothers doesn't have a clue and they sell the stupid thing!

Video Link:

This post has been edited by VTSpyder: 05 June 2011 - 09:05 PM

[rrman01]

some good results when you finish fine tunning will you make a brochure of the settings that you came up with and does the temp and humidity afect the results cheers