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Dec 11, 2015 | 10:55 AM

#7861

whittlebeast

Road Master

Joined: Mar 2007

Posts: 1,177

Likes: 23

It is almost impossible to get your head around tuning by looking at CSV files in table format. Engine tuning is all about averages.

It is a little like comparing looking at a red rock with a flashlight compared to watching a sunset at the edge of the Grand Canyon.

Andy

Last edited by whittlebeast; Dec 11, 2015 at 11:32 AM.

Dec 12, 2015 | 02:40 PM

#7862

scooterbum46

Tourer

Joined: Apr 2012

Posts: 482

Likes: 30

From: Michigan/Florida

Is there any drawback, aside from the slight projection into the exhaust stream, that I can't install both the NB and WB O2's ? I screwed around and didn't get my TT modified map request in to FM until today. I've got the weekend to put the pipes and AC on, I'm thinking I could just hold off on installing the TargetTune and make some basic Autotune runs against one of the maps available for download. I really don't want to try to put the WB's on with the pipe in place....

Dec 12, 2015 | 03:32 PM

#7863

azlou66

Road Captain

Joined: Mar 2014

Posts: 668

Likes: 34

From: Florida

Other then protrusion into the exhaust stream there aren't any downside to install both WB and NB O2's.

Dec 13, 2015 | 10:18 PM

#7864

sel53

Tourer

Joined: May 2013

Posts: 297

Likes: 12

From: Los Angeles County

A question for you knowledgeable guys ...

I am thinking the PV Autotune tunes the fuel / AFR tables, based on the VE tables used in the baseline tune (and the o2 measurements etc). Is this correct?

If not, what information would be used to update volumetric efficiency tables?

Thanks,
Steve

Dec 14, 2015 | 06:14 AM

#7865

whittlebeast

Road Master

Joined: Mar 2007

Posts: 1,177

Likes: 23

Really it tunes the VE tables based on what it reads in the exhaust. The AFR table is just the AFR that the system is targeting.

Dec 14, 2015 | 03:43 PM

#7866

fuelmoto

Platinum Sponsor

Joined: Feb 2007

Posts: 7,287

Likes: 4,286

From: Little Chute, WI

Quote:

Originally Posted by sel53

It's actually the opposite. The ECM uses the Lambda/AFR table as a reference point, however VE represents the airflow model. Both closed loop and the PV Auto Tune application look at the AF target, look at the actual mixture, and then calculate the VE delta necessary to achieve this target. Corrections are then applied to the VE tables

__________________

Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com

Dec 14, 2015 | 10:31 PM

#7867

sel53

Tourer

Joined: May 2013

Posts: 297

Likes: 12

From: Los Angeles County

Thanks Whittlebeast and Jamie for the clarification. Makes sense.

Dec 15, 2015 | 06:21 PM

#7868

RonaldNC

Cruiser

Joined: Jul 2014

Posts: 110

Likes: 16

From: Fuquay Varina, NC

Jamie (or any other knowledgeable person),

I'm currently using the PV-2 with the Fuel Moto Pro Billet Air Cleaner. I really like the combination, but am tired of getting the hot foot on the right side. I'm looking to purchase the Fuel Moto Jackpot 2/1/2 headpipe to get rid of the cat and continue using the stock muffler.

If I proceed, do I use the same tune that I currently use? Or do I need to use a different tune?

Thanks!

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Dec 15, 2015 | 07:37 PM

#7869

Smokey Stover

Road Warrior

Joined: May 2013

Posts: 1,430

Likes: 55

From: Florida

Fuel Moto will Email you a new tune to use as a starting point. Do a few Auto tunes to dial it in and you should be good. Along with any tech support you may need. That's what makes them so good to deal with.

Dec 21, 2015 | 09:53 AM

#7870

Scooterbear

Intermediate

Joined: Feb 2015

Posts: 31

Likes: 1

From: Hernando, MS

Completed installation of the "Target Tune" yesterday along with a top end rebuild and modifications.

Map supplied by Fuel Moto was spot on for the new build. Will wait until break in is complete before auto tuning.

I've had PV for about a year. My advice is to be careful in adjusting ignition to reduce pinging, when in reality it's a mechanical issue causing the problem. (i.e. carbon build up). A cheap video scope from Walmart can be your best tool for trouble shooting.