What Tuner is best ??
In any case, you used to be able to buy a one time download from HD for the different mod stages, for about $189. The MoCo no longer offers those... now you need to buy their (EPA compliant only) tuner....
In your case, a tuner with a good map will make your bike run better than the HD download... but maybe not $400 better. If you plan on never doing any other mods, probably good with what you have.
I bought an '03 Heritage new in 2003. I waited about 6 months, and did an all HD 95" big bore kit (included; SE-A/C, SE203 cams, SE 95" jugs, SE flat top pistons, HD Stage II download, and I added V&H Big Shot exhaust).
It made a big difference over stock, and ran great.
In 2012, I bought a PowerVision for my '12 Limited, and added my '03 Heritage onto the PV for the additional $199 license fee. FuelMoto didn't have a MAP for my combo, so I contacted DynoJet and sent them my HD download map and the list of my components.
I have no idea how they modified my map, but when I flashed it to the bike, a bike that ran great, it ran significantly better than before.... I was very happy with the change...
Last edited by turbotom1052; Apr 28, 2018 at 04:12 AM.
I was simply asking for an opinion on a Fuel Pak Product, nothing more.
If its not a true flash to your ecm.
Then you dont want it.
Just consider
Your ecm remains un affected .
The fp3 takes the stock settings and then alters it to said setting .
Then the sensors on your bike sends backinfo on what the engine is doing.
It doesnt send it back to fp3.
It send it to the ecm.
Then it get processed there and based on what command such as throttle rpm air flow you name it.
The ecm processes it then it will send that info to fp3.
Then fp3 processes it.
Then alters the signal based on what you have said you want.
To much time has elapsed to ever get an engine to respond properly or i should say
When speaking in milliseconds.
The event you were trying to correct has already went and gone.
You may not notice it cause it would make the response say many cycles later achieving what you asked for previous.
There is a delay or latency that you will never over come
Thats just how it is?
You dont need two computers to calculate what you should have done the first time .
Sorry
Spend the money by a new brain such as thundermax or using a proper flashing tool.
But never go piggy back
Just my opinion
Factually accurate opinion
Last edited by Jeff Watkins; Sep 12, 2019 at 08:06 PM.
If its not a true flash to your ecm.
Then you dont want it.
Just consider
Your ecm remains un affected .
The fp3 takes the stock settings and then alters it to said setting .
Then the sensors on your bike sends backinfo on what the engine is doing.
It doesnt send it back to fp3.
It send it to the ecm.
Then it get processed there and based on what command such as throttle rpm air flow you name it.
The ecm processes it then it will send that info to fp3.
Then fp3 processes it.
Then alters the signal based on what you have said you want.
To much time has elapsed to ever get an engine to respond properly or i should say
When speaking in milliseconds.
The event you were trying to correct has already went and gone.
You may not notice it cause it would make the response say many cycles later achieving what you asked for previous.
There is a delay or latency that you will never over come
Thats just how it is?
You dont need two computers to calculate what you should have done the first time .
Sorry
Spend the money by a new brain such as thundermax or using a proper flashing tool.
But never go piggy back
Just my opinion
Factually accurate opinion
Vance and hines is probably the fastest man to ever set foot on a bike.
That being said.
I should have clarified .
If you flash your ecm and then disconnect you are ok
I promise you the ecm vaince and hines uses is not a stock harley ecm.
In the stock ecm
You have no abilty to work with turbos.
For the average folks like myself.
I stick with the screaming eagle tuner.
I have all my dyno work done by nate at sportys trike and bike.
For many reasons.
They deliver what i ask for.
And to much power in ones hand can cost us thousands of dollars.
I have a 120 screaming eagle
Running the 657 redshift cams.
138 / 145 hp/torque
Alot of my friends use fp3.
All they do is play with it and never get anywhere that makes them happy lol
But have at it.
But i like thundermax or direct link
But i use the screaming eagle for warranty purposes.
The Best of Harley-Davidson for Lifelong Riders
With thundermax you can run turbos or any application cause you can map new sensors.
Kinda like a plc
If you need it make it
It really comes down to good exhaust and the right choice in cams
I pick my cams by the duration not the lift
Large lift doesnt mean good cam
Last edited by Jeff Watkins; Sep 13, 2019 at 09:19 PM.
With thundermax you can run turbos or any application cause you can map new sensors.
Kinda like a plc
If you need it make it
It really comes down to good exhaust and the right choice in cams
I pick my cams by the duration not the lift
Large lift doesnt mean good cam
Unlimited adaptability to your build and great customer service.














