Vance & Hines Fuelpak Talk. - Page 7 : V-Twin Forum: Harley Davidson Forums

Jeffytune · 11-19-2007, 10:18 PM

Quote:

Originally Posted by smokie11

I don't have a problem with 2-5 MPG for a better running bike. With the TFI adjusted for the bike to run best I lost between 5-10 MPG. When I adusted it to cut back on fuel the slow speed stumble would return. I may just have to try the fuelpak and see if it helps. If it would make my bike run at the lower RPM's the way my CARB used to I would be happy. Not interested in max HP or TQ but would like it to be smooth all the way through the throttle. It runs real good now except on the very bottom from about 2400 RPM's down.

I think the Fuelpak will be a good match for you.

jior · 11-19-2007, 11:02 PM

hey Jeffytune,
I noticed you have a right rear header pipe, did the fuelpak cool you off any at idle? I know it will cool it off while criusing but did it help at idle?

Jeffytune · 11-20-2007, 11:02 AM

Quote:

Originally Posted by jior

hey Jeffytune,
I noticed you have a right rear header pipe, did the fuelpak cool you off any at idle? I know it will cool it off while criusing but did it help at idle?

It is a bit deceiving when you first look at it, but it is not in the same place as the stock pipes, it does have more space between your leg and the the pipe.
I put the FuelPak and the Pro Pipe on at the same time, all I can say is that it is far cooler then it was stock.

navyman · 11-20-2007, 04:05 PM

I just checked my fuel miles/gallon. This is the first time since adding the Fuelpak and the Screaming Eagle filter (pipes are still stock). My fuel mileage has actually improved. I was getting about 40-42 cruising at about 60. Today I got 45 or a bit more. I will continue to monitor. I was expecting a drop of about 2 mpg.

Jeffytune · 11-20-2007, 06:12 PM

Quote:

Originally Posted by navyman

I just checked my fuel miles/gallon. This is the first time since adding the Fuelpak and the Screaming Eagle filter (pipes are still stock). My fuel mileage has actually improved. I was getting about 40-42 cruising at about 60. Today I got 45 or a bit more. I will continue to monitor. I was expecting a drop of about 2 mpg.

Cool, what program are you using?

navyman · 11-20-2007, 06:45 PM

I am using FP-1760.

Jaybo · 11-20-2007, 07:31 PM

Quote:

Originally Posted by navyman

I just checked my fuel miles/gallon. This is the first time since adding the Fuelpak and the Screaming Eagle filter (pipes are still stock). My fuel mileage has actually improved. I was getting about 40-42 cruising at about 60. Today I got 45 or a bit more. I will continue to monitor. I was expecting a drop of about 2 mpg.

That's pretty comparable to what I'm getting as well on my 08 RK. I'm getting 40 average with 2-up. This is a combination of city and highway. I would expect to get around 45 or so riding solo. Not bad I suppose.

I found out some new information some of you may want to note for the next time you try tuning your ride. I contacted V&H and asked them what modes richens and/or leans the fuel/air mixture at 1/4 to 1/2 throttle (cruising speed). I told V&H that I was experiencing slight increase in vibration on 5th and 6th gear. And yes I know that my true dual are partly to blame, but I'm just experimenting to see if I can minimize it by twicking the tuning. For Fuelpak 61009 version 13 (which is what I'm using) the modes are 6 and
10. I was told to take mode 6 down to 20 from 22 and mode 10 down to 8 from 10. This basically leaned it out even more (the lower the setting the less fuel and vise-versa). I did notice the engine runs a little smoother, but I also notice it was running hotter than before (natural effect of a leaner engine). I raised the setting for 6 and 10 back up by one setting. I will let you all know tomorrow what the results were.

By the way when you do this keep a close eye on your plugs. They are a good indication of how your engine response to your twicks.

Jaybo · 11-21-2007, 01:30 PM

Just in from Adams Rogers (Fuelpak tech support). For fuelpak P/N 61009 version 13, modes 3 and 4 are for fuel delivery for the low and mid rpm range.

DCRANER · 11-22-2007, 06:08 PM

Question. I have an 07 FLHRS with a/c, slip-ons, and Harley Stage1 download.

My understanding is with the download I am still lean at idle & cruise, but rolling onto throttle the AFR is not really that bad, not lean I mean.

I also understand the FuelPak still leaves it lean at idle, but does richen up for cruise, and I guess rolling onto throttle.

So, is the only benefit of FuelPak over Harley Stage1 Download just not being lean for cruising? Is it really worth the money over the simple Harley download?

HDMD88 · 11-23-2007, 12:22 AM

It's incorrect to assume you are rich here and lean there....each bike breathes differently and one exhaust system from another makes a VAST difference in the way an engine breathes.

jior · 11-23-2007, 08:04 PM

What has me puzzled is that the stage 1 ECM FP-0384 has higher values in the modes than the stock ECM values in the FP-0383. I would think it would be the other way around with the stock ECM using the higher values. Can anyone elaborate on this, just seems to be the opposite of my thinking. I always thought the stage 1 download was to ricen up the stock mixture.
I've also been told that it doesn't help in richening up the idle mixture, does anyone know that for sure?

Jeffytune · 11-24-2007, 12:58 AM

It's not the way you would think, but Harley did not set there stage one with your set-up in mind, it was with there SE stuff only, and still trying to keep within the EPA limits.

When you increase air flow through the engine, things change in the fuel requirements.
It was just how it came out on the dyno, and you have to understand, the cells all work off each other, they work hand in hand and build like a pyramid if you will.
So If you change just one cell, it will effect all of them.

DCRANER · 11-24-2007, 09:28 AM

Quote:

Originally Posted by Jeffytune

Hi.

The Fuelpak does not just add or remove Injector on time, it changes the way it delivers the fuel as well.
It will deliver move faster for throttle response, and shunt the Injectors on decell.
It will also help to get ride of flat spots.
you will feel a difference with the Fuelpak over the stage one download.

O/K, you talked me into it. So, best place to buy it?

Jaybo · 11-24-2007, 09:51 PM

Quote:

Originally Posted by DCRANER

O/K, you talked me into it. So, best place to buy it?

I have to agree with Jeffytune. I've had nothing but great results with Fuelpak. Great throttle response and no flat spots. I had a slight decel popping, but setting mode 23 to 15 fixed the problem.

Buy through Ebay. Can't beat the price of some of the distributors online. I payed $198.00 plus $5.00 shipping. Not bad!! Great product and easy to install. You'll hear many opinions, just like the one I'm giving you, but all you can do is experience it for yourself.

There are two Harley Stealers in Hampton Rds. VA. I deal with every-so-often. I made several calls When I was trying to decide between the fuelpak and the power commandor. One dealer told me "power commandor is the way to go". The other dealer told me "use the fuelpak, it's easy". One of the two dealers also had a dyno. Guess which dealer pushed for me to get the power commander? You guessed it....the one with the dyno. I would have paid $300 and another $250 for the tuning.

With the fuelpak each map has been dyno tested for optimum results.

Jeffytune · 11-25-2007, 12:12 AM

Quote:

Originally Posted by DCRANER

O/K, you talked me into it. So, best place to buy it?

On E-bay there is a dealer called Eastern Performance, they have some of the best prices, free shipping, and IF there is a Issue, they will help you out.

I can't say that about that other E-bayer(American cycle).