MPG Question for the Techies

martysnarf · Sep 29th, 2008, 03:38 PM

Got it- THANKS! I am still reading some of the archived posts, and it is making more sense. I am not one that likes to constantly tinker with the fuel, and that's why I got rid of my PC3. Sounds like this TFI is similar, but with less tinkering. Still researching...

glider · Sep 29th, 2008, 03:40 PM

The TFI only adjusts fuel and is very simple to use with no maps involved. You'll like it, easy installation too.

martysnarf · Sep 29th, 2008, 04:09 PM

So it richens or leans out the fuel mixture depending on what? How does it know what to do? How does it know what pipe/air cleaner combination you have? Also, does it eliminate that annoying herky-jerky pause when you roll on the throttle? When I bought my bike stock, I remember not being able to tolerate that "delay of sorts" when I would give it gas on an exit ramp. It almost seemed like a delayed-reaction. Does it smooth that out?

glider · Sep 29th, 2008, 04:13 PM

Quote:

Originally Posted by martysnarf

So it richens or leans out the fuel mixture depending on what? How does it know what to do? How does it know what pipe/air cleaner combination you have?

Only richens it from where the stock lean map is depending on how you set the dials up.

They give you the proper settings for the dials for the various stages and you adjust from there if you need more fuel. It's not as difficult as other units and easier to work with.

martysnarf · Sep 29th, 2008, 04:14 PM

Also, does it eliminate that annoying herky-jerky pause when you roll on the throttle? When I bought my bike stock, I remember not being able to tolerate that "delay of sorts" when I would give it gas on an exit ramp. It almost seemed like a delayed-reaction. Does it smooth that out?

Also- I know this is expensive- but I have had a good experience with my TMax. It's an older one than this one, but I have read good things about this AutoTune product. Thoughts? http://www.zippersperformance.com/ca...=588&prod=1415

Also, thanks for putting up with all these questions!! It's VERY appreciated!

glider · Sep 29th, 2008, 04:31 PM

Quote:

Originally Posted by martysnarf

Also, does it eliminate that annoying herky-jerky pause when you roll on the throttle? When I bought my bike stock, I remember not being able to tolerate that "delay of sorts" when I would give it gas on an exit ramp. It almost seemed like a delayed-reaction. Does it smooth that out?

Also- I know this is expensive- but I have had a good experience with my TMax. It's an older one than this one, but I have read good things about this AutoTune product. Thoughts? Product List

Also, thanks for putting up with all these questions!! It's VERY appreciated!

Don't know about the jerky thing, it shouldn't do that to begin with. The T Max is a good unit but if you have one on the bike and have a problem on the road, they shops can't work on it because of incompatibility with the diagnostic equipment. A bit pricey and still some bugs in them too, good support thou.

It's also a bit more than is needed too IMO.

martysnarf · Sep 29th, 2008, 04:37 PM

Quote:

The T Max is a good unit but if you have one on the bike and have a problem on the road, they shops can't work on it because of incompatibility with the diagnostic equipment. A bit pricey and still some bugs in them too, good support thou.

Yes, I agree wholeheartedly- if I'm broken-down someplace and there doesn't happen to be a TMax tech close by (riiiiiiigghht), I'm pretty much screwed! I didn't think that far ahead when I bought it (I was a bit more of a noob then), but it has really treated me great, and I live less than 5 miles from the shop I bought it from. They have given me GREAT support, and really stood behind their product. It was VERY expensive, and the new one is even more expensive. I'll have to really do my homework before I make a decision. I don't like to be tinkering all the time- I ride EVERY day. My bike is my "commuter vehicle" and I don't care for the car at all, so I like a product that is kind of a "set it and forget it" kind of mentality. That's why I am considering something that auto-tunes. The TFI sounds great, but sounds like I'll still be messing with the screws quite a bit. I dunno... Lots to think about!! Hey thanks again man!!!

glider · Sep 29th, 2008, 04:59 PM

After an adjustment or three, you're done with adjusting the TFI.

Sadist112 · Sep 30th, 2008, 05:55 PM

Marty,

Not sure what type of Touring Model you are deciding on. But I get about 39-44 mpg on my bike stock. And that's traveling at around 80-90mph for a 67mile stretch to and from work every day. I figure if I rode at average speeds I'd probably get better gas mileage however I have a lead elbow that seems to weigh down my wrist. As with any upgrade to the pipes and intake and EFI you'll see decreases in MPG.

If you are considering an '09 you may want to wait for the release of the Power Commander V. I have used PC3s on my previous two bikes and they work great. The limitation on the TFI is a stagnate adjustment to the air/fuel at all throttle positions. With the Power Commander the air/fuel can be adjusted at numerous (and i mean numerous) throttle positions which will prevent that slight lag when pushing the throttle (ie getting on the highway). I have looked at the TFI and read all the reviews, for the price difference I am going with the Power Commander, just my opinion though. If you buy through Fuelmoto they will set you up with a custom map for your particular setup (which they dyno tuned), which I wish I had known about for my last two bikes. Other than that you are looking at a $350 custom dyno map for the Power Commander. If you have to get a custom map then in that particular instance the TFI is worth the money because you can adjust the settings yourself with minimal effort. At the end of the day (i hate that phrase) you get what you pay for.

Sep 29th, 2008, 03:38 PM	#11
martysnarf Play The Throttle Ride: 2009 Street Glide Join Date: Sep 11th, 2008 Location: Catonsville, MD Posts: 165 My Mood:	Re: MPG Question for the Techies Got it- THANKS! I am still reading some of the archived posts, and it is making more sense. I am not one that likes to constantly tinker with the fuel, and that's why I got rid of my PC3. Sounds like this TFI is similar, but with less tinkering. Still researching...

Sep 29th, 2008, 03:40 PM	#12
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,053 My Mood:	Re: MPG Question for the Techies The TFI only adjusts fuel and is very simple to use with no maps involved. You'll like it, easy installation too. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Sep 29th, 2008, 04:09 PM	#13
martysnarf Play The Throttle Ride: 2009 Street Glide Join Date: Sep 11th, 2008 Location: Catonsville, MD Posts: 165 My Mood:	Re: MPG Question for the Techies So it richens or leans out the fuel mixture depending on what? How does it know what to do? How does it know what pipe/air cleaner combination you have? Also, does it eliminate that annoying herky-jerky pause when you roll on the throttle? When I bought my bike stock, I remember not being able to tolerate that "delay of sorts" when I would give it gas on an exit ramp. It almost seemed like a delayed-reaction. Does it smooth that out?

Sep 29th, 2008, 04:14 PM	#15
martysnarf Play The Throttle Ride: 2009 Street Glide Join Date: Sep 11th, 2008 Location: Catonsville, MD Posts: 165 My Mood:	Re: MPG Question for the Techies Also, does it eliminate that annoying herky-jerky pause when you roll on the throttle? When I bought my bike stock, I remember not being able to tolerate that "delay of sorts" when I would give it gas on an exit ramp. It almost seemed like a delayed-reaction. Does it smooth that out? Also- I know this is expensive- but I have had a good experience with my TMax. It's an older one than this one, but I have read good things about this AutoTune product. Thoughts? http://www.zippersperformance.com/ca...=588&prod=1415 Also, thanks for putting up with all these questions!! It's VERY appreciated! Last edited by martysnarf; Sep 29th, 2008 at 04:24 PM.

Sep 29th, 2008, 04:59 PM	#18
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,053 My Mood:	Re: MPG Question for the Techies After an adjustment or three, you're done with adjusting the TFI. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Sep 30th, 2008, 05:55 PM	#19
Sadist112 Warming The Wheels Ride: 2009 Street Glide Join Date: Jul 22nd, 2008 Location: Philly Posts: 114	Re: MPG Question for the Techies Marty, Not sure what type of Touring Model you are deciding on. But I get about 39-44 mpg on my bike stock. And that's traveling at around 80-90mph for a 67mile stretch to and from work every day. I figure if I rode at average speeds I'd probably get better gas mileage however I have a lead elbow that seems to weigh down my wrist. As with any upgrade to the pipes and intake and EFI you'll see decreases in MPG. If you are considering an '09 you may want to wait for the release of the Power Commander V. I have used PC3s on my previous two bikes and they work great. The limitation on the TFI is a stagnate adjustment to the air/fuel at all throttle positions. With the Power Commander the air/fuel can be adjusted at numerous (and i mean numerous) throttle positions which will prevent that slight lag when pushing the throttle (ie getting on the highway). I have looked at the TFI and read all the reviews, for the price difference I am going with the Power Commander, just my opinion though. If you buy through Fuelmoto they will set you up with a custom map for your particular setup (which they dyno tuned), which I wish I had known about for my last two bikes. Other than that you are looking at a $350 custom dyno map for the Power Commander. If you have to get a custom map then in that particular instance the TFI is worth the money because you can adjust the settings yourself with minimal effort. At the end of the day (i hate that phrase) you get what you pay for. __________________ Sadist 2009 - Street Glide 2007 - Scion Tc

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MPG Question for the Techies

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