Which Tuner
Last edited by 98hotrodfatboy; Nov 28, 2020 at 09:25 PM.
Last edited by 98hotrodfatboy; Nov 29, 2020 at 06:19 AM.
Highly recommend buying a PV from fuel moto no better support any where and their Tunes work.
With the basic PV, when using the auto tune function I can only use the Small Narrow band sensors and I cannot change the Target AFR...Right?
So based on the motor upgrades I stated in post 1, Higher compression, better heads and cam and air intake upgrade with a Supertrapp I would like to set my Target AFR to 13.8 or .94 Lambda. The question is can the basic PV do this? I'm not 100% sure but I don't think it can. I think I will need to get the PV Pro or possibly the PV target Tune system as well... Does that sound right?
On another note, will the Basic PV be able to properly Autotune with the Narrow band sensors and the above motor mods? I'm thinking not if I want a target AFR of 13.8..
PM me, it's possible to use this on a PC5, little cost
Last edited by 1997bagger; Nov 29, 2020 at 08:59 AM.
The Best of Harley-Davidson for Lifelong Riders
https://youtu.be/ST2kDwBKBmE
Heck we just had a 4 day weekend...would have been the right time to come down and pick it up!
You could call Fuel Moto and discuss the tuners with them, I'm sure they will lead you down the right path...or road!
You have to have some way of measuring things- you can use the onboard O2 sensors & either tuning device to record the closed loop areas of the map, while riding, as long as the AFR desired is set to where the narrowbands can measure it ( 14.3-14.7 AFR). This data is used to modify the map. Comparing what comes out to what was requested, and adjusting the VE tables, so that happens (AKA calibrating the VE tables). Once done, you can adjust the AFR desired table to whatever you wish to run, and the ECM will do the math. You can use this to do all of the low load areas of the map, as long as the narrowbands reported good data while recording. Setting the AFR desired table so there are no red bars ( closed loop active indicator) simple ignores O2 feedback.
If you want to calibrate the WOT areas, you need to use widebands to measure this area. Daytona Twin Tech, Innovate, Powerdex, AEM, ECM-Lambda Pro, ECM-AFM all make wideband setups that will work with a TTS green VCI (which allows for 4 analog channels, so you can record narrow & wide bands at the same time, as well as EGT, fuel pressure, etc)
This is a common setup for tuners, not so much for the DIY guys. If you wish to mine for best power, a dyno, or a drag strip, is really handy. (Or the great white dyno- Bonneville)

setup to record data
reset AFR for 13.8 cruise/idle, 13.0 WOT/decel
I like TTS, because it was the original- they made the Screamin Eagle Race Tuner, SE downloads, and SE 1 time use cartridges for HD starting with the EVO injected bikes, and I worked for a dealership for a couple decades.














