Fuelpak FP3 - Is autotune necessary
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2nd Gear
Joined: Aug 2020
Posts: 6
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From: Texas
Fuelpak FP3 - Is autotune necessary
I recently installed an FP3 on my '12 Super Glide. I installed the tune for the Stage 1 components I have, and it runs great now. Will I gain much by running the auto-tune? Or should I leave well enough alone?
Seasoned HDF Member
Joined: Jan 2015
Posts: 16,013
Likes: 7,137
From: Sandy Eggo's North County
A really good "canned" tune (what you have now,) should get you 60-70% of optimum.
An "auto-tune" should yield about "75-80%" of optimum.
A real dyno tune, by a competent tech, should get you 95-98% of optimum. The only variable here is fuel quality.
One other thing...if you're going to go to the expense of "auto-tune OR dyno tune" use either Shell V-Power or Chevron Supreme only, when tuning.
If you're gonna spend $500 to get a decent tune, it makes no sense to run crap fuel. Especially when the difference in cost isn't a dollar for a whole tank...
EDIT~ It should go without saying, to already have a new/clean air cleaner and new spark plugs (NGK.)
An "auto-tune" should yield about "75-80%" of optimum.
A real dyno tune, by a competent tech, should get you 95-98% of optimum. The only variable here is fuel quality.
One other thing...if you're going to go to the expense of "auto-tune OR dyno tune" use either Shell V-Power or Chevron Supreme only, when tuning.
If you're gonna spend $500 to get a decent tune, it makes no sense to run crap fuel. Especially when the difference in cost isn't a dollar for a whole tank...
EDIT~ It should go without saying, to already have a new/clean air cleaner and new spark plugs (NGK.)
Last edited by NORTY FLATZ; Sep 17, 2020 at 05:37 PM.
Cruiser
Joined: Jul 2020
Posts: 230
Likes: 88
From: Spain
My bike was running fine after I installed my Fp3 , but a few auto tunes and it was even better.
Just do auto tune, if you don’t like it, you still have the 1 tune in your memory.
So you can always go back.
Just do auto tune, if you don’t like it, you still have the 1 tune in your memory.
So you can always go back.
A really good "canned" tune (what you have now,) should get you 60-70% of optimum.
An "auto-tune" should yield about "75-80%" of optimum.
A real dyno tune, by a competent tech, should get you 95-98% of optimum. The only variable here is fuel quality.
One other thing...if you're going to go to the expense of "auto-tune OR dyno tune" use either Shell V-Power or Chevron Supreme only, when tuning.
If you're gonna spend $500 to get a decent tune, it makes no sense to run crap fuel. Especially when the difference in cost isn't a dollar for a whole tank...
EDIT~ It should go without saying, to already have a new/clean air cleaner and new spark plugs (NGK.)
An "auto-tune" should yield about "75-80%" of optimum.
A real dyno tune, by a competent tech, should get you 95-98% of optimum. The only variable here is fuel quality.
One other thing...if you're going to go to the expense of "auto-tune OR dyno tune" use either Shell V-Power or Chevron Supreme only, when tuning.
If you're gonna spend $500 to get a decent tune, it makes no sense to run crap fuel. Especially when the difference in cost isn't a dollar for a whole tank...
EDIT~ It should go without saying, to already have a new/clean air cleaner and new spark plugs (NGK.)
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