stage iv to stage V - Road Glide Forums
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post #1 of 10 (permalink) Old 02-10-2016, 08:27 PM Thread Starter
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stage iv to stage V

is it worth it to dyno & add a s.e. tuner to a 2015 rgs with a stage lv kit ?????
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post #2 of 10 (permalink) Old 02-11-2016, 02:24 AM
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In my opinion, if you're doing any real motor work, just flashing a download from HD isn't going to cut it. Rear motor work should be properly tuned... SE Pro tuner, Power Vision, TTS Mastertune... any flash tuner.... I've never been a fan of piggyback style tuners because I've seen them crap out and then you're shit up a creek. If you're going to put the money into it... do it right so you get the most, power, performance, and reliability...
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post #3 of 10 (permalink) Old 04-09-2016, 07:23 PM Thread Starter
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Question

any other views , opinions???
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post #4 of 10 (permalink) Old 04-10-2016, 04:50 AM
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Had a stage 4 installed on my 13. Love it.
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post #5 of 10 (permalink) Old 04-10-2016, 08:19 AM
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Originally Posted by apgharleymech View Post
In my opinion, if you're doing any real motor work, just flashing a download from HD isn't going to cut it. Rear motor work should be properly tuned... SE Pro tuner, Power Vision, TTS Mastertune... any flash tuner.... I've never been a fan of piggyback style tuners because I've seen them crap out and then you're shit up a creek. If you're going to put the money into it... do it right so you get the most, power, performance, and reliability...
Isn't PV piggyback? I have a PCV right now and wish I'd known about TTS before I did it. I want to go TTS as soon as I can afford it. It will be nice to run closed loop with tunability.

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post #6 of 10 (permalink) Old 04-10-2016, 11:05 AM
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Originally Posted by nanook View Post
is it worth it to dyno & add a s.e. tuner to a 2015 rgs with a stage lv kit ?????
If you have a stage IV already then shouldn't you already have a tuner? Maybe you should list out your current mods so that we know what you are working with.

Personal opinion....if you want to go any higher than a mild cam and street heads upgrade then you really should start thinking about addressing the bottom end.

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post #7 of 10 (permalink) Old 04-10-2016, 06:07 PM Thread Starter
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Question desertwndrr?

what should i do to Bottom End?? i have dealer installed stage IV kit-v&h header pipes with cfr mufflers!!
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post #8 of 10 (permalink) Old 04-10-2016, 06:48 PM
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what should i do to Bottom End?? i have dealer installed stage IV kit-v&h header pipes with cfr mufflers!!
Replace the crank. The stock crank can shift if it's overbuilt. What exactly have you had done to your motor. Intake and pipes is generally stage one.

I'm going to quote Harley Jack here:
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Dont know about Harley stages but S&S is a good guideline

1 is intake and exhaust : high flow air cleaner and different exhaust

2 is 1 plus cams and push rods

3 is 2 plus big bore kits

4 is 3 plus ported heads and upgraded fuel system

like anything else you don't have to do all of the previous for one of the upgrades
So pretty much if you have a stage 4 setup you would have a tuner already. Go with whatever tuner your tuner wants to use and is comfortable with. My local dealer prefers SE Race tuner and TTS Mastertune.

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post #9 of 10 (permalink) Old 04-10-2016, 09:47 PM
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It kind of depends on where you are HP and TQ wise and what you are trying to achieve. The stock crank is cast and has been known to be fine in a stock bike, but really show its limitations once you pump the power up. Stock HD cranks are also known to have runout tolerances that are higher than what most builders would consider acceptable. My bikes have had runouts from .004-.007, but the best was my springer softail that had a .029 runout.

Let's just say that you pump the power up with a Stage IV or Stage V kit. That is a pretty large chunk of change and if your crank can't handle it then you risk eating that motor up. It's kind of like the foundation on a house. Build the base strong to handle whatever you throw at it. I went with S&S cranks in my last two builds. Another option is to send yours out to be worked over.

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post #10 of 10 (permalink) Old 04-11-2016, 09:17 AM Thread Starter
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Cool

Thanks guys for info!
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