tuner SEPRT, powervision ,thunder max
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Novice
Joined: Aug 2012
Posts: 18
Likes: 2
From: maryland
tuner SEPRT, powervision ,thunder max
Hello all have a question or two I have a 2011 ultra classic bought it new 25k on the clock. was running SE 255 cams SE stage 1 breather/intake V&H true duels tuned with a SEPRT bike ran great. This winter I installed a Fuel Moto 107 big bore woods 555 cams and back to the tuner bike runs good. My Tq and HP seem a little low for the 107 upgrade 86hp/ 108 tq I checked compression 185psi dead nuts each cylinder. I bought a powervision had FM give me a tune will run the auto tune. have not done it yet. So I was plotting on jackpot headers and target tune to the tune for:icon about 700 more bucks was wondering if its worth the time and money. could get a thundermax for about the same cash. any advice out there? 
Last edited by johnboy21; May 9, 2017 at 07:43 PM.
Stellar HDF Member
Joined: Jun 2009
Posts: 3,423
Likes: 421
From: Northern, Ohio (Yuck!)
You do realize that if you have a problem with your FM tune all you need to do is contact them and they will work with you to fix it.
I don't have any FM gear and I know this, why doesn't the OP?
I don't have any FM gear and I know this, why doesn't the OP?
Road Warrior
Joined: Feb 2017
Posts: 1,525
Likes: 646
From: Saint Charles, Missouri
True duals are not the best for power or torque, a 2 into 1 or a system with a balance pipe or merged collector is much better. If you already had the SEPRT tuner, why did yoiu spend more money on buying another tuner, just should of had bike dynoed with that tuner.
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,144
Likes: 6,166
From: SE Michigan
What exhaust are you running? If you have true duals, it will tend to "hunt" a bit at idle. Completely normal.
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Lumpy... not steady idle. Didn't you say you had a cam installed? And you wonder why? You answered your own question. Now. If it was lumpy at 2600 R's, you would have a good concern.
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Road Warrior
Joined: Mar 2009
Posts: 1,518
Likes: 59
From: Port Neches Texas
107 with cams producing 86hp/108 tq is definitely anemic. The tuner dyno'd the 107 with the race tuner? Sounds like it's the man not the tool. My 96" does 95hp and 105 tq, the moudule is only the gateway to the ECM.
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Novice
Joined: Aug 2012
Posts: 18
Likes: 2
From: maryland
Yes still on V&H true duels I spoke with FM about the dyno results and they thought it was weak also said I might have a tooth off on the cams and to do compression test I did and it looked good. so my thinking is get PV with TT and auto tune the map. Which mean I need new header to accept the larger 02 sensors .Right now the bike smells like it is very rich smells like raw fuel cold or hot but it runs good if I target tune I can mod and not have to go to the dyno every time at $450 per run it gets pricy. And I do not want to get in a pissing match with the dealer over this tune.
Last edited by johnboy21; May 10, 2017 at 09:05 AM.