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Author Topic: To Tune or Not to Tune?  (Read 3721 times)

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Keats

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Re: To Tune or Not to Tune?
« Reply #15 on: August 22, 2011, 11:49:04 AM »



I think I have got it.........

The Harley Rider crowd is special over the general motorcycle crowd?

I guess the CVO crowd is considered special relative to the normal Harley Owner?

but the 2011.5 B&B crowd is extra extra special?

I guess I get it......

is the B&B more special than the Crimson Mist crowd?


I am just trying to keep this straight.......

 





LOL

What happened to the 2010.5 registry?





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glenn bob

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Re: To Tune or Not to Tune?
« Reply #16 on: August 22, 2011, 05:27:26 PM »

You get better with every post. ::)
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Glenn bob

timo482

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Re: To Tune or Not to Tune?
« Reply #17 on: August 22, 2011, 09:40:06 PM »

they are too lean because they are supposed to be too lean - to meet emissions - but they are really lean and really hot.

there are many threads and articles that say that if you do NOT change the air cleaner you can do whatever to the exhaust and the ecm will compensate

the same articles say that if you change the air cleaner you need to tune even if the exhaust is stock

in either case it will stay very very lean & hot

as for me - im still running stock ex and stock air cleaner w stock tune & a good coil cooler.

to
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Cowboy2

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Re: To Tune or Not to Tune?
« Reply #18 on: August 22, 2011, 10:50:30 PM »


I guess the CVO crowd is considered special relative to the normal Harley Owner?
but the 2011.5 B&B crowd is extra extra special?
I am just trying to keep this straight.......


Yea, you got it Keats, we are just Snobs.  :zroflmao: That is why we got the BIG BLUE, it is pure SNOB appeal....   :-* :bananarock:   :zroflmao:

 WADEH:  Same Bike, exhaust gas analysis, Cat Gut, Monster Ovals, Air Fuel Mix charted, and no tuner was necessary...  :2vrolijk_21:
« Last Edit: August 23, 2011, 02:03:44 AM by Cowboy2 »
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Keats

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Re: To Tune or Not to Tune?
« Reply #19 on: August 23, 2011, 10:18:22 AM »

Yea, you got it Keats, we are just Snobs.  :zroflmao: That is why we got the BIG BLUE, it is pure SNOB appeal....   :-* :bananarock:   :zroflmao:

 WADEH:  Same Bike, exhaust gas analysis, Cat Gut, Monster Ovals, Air Fuel Mix charted, and no tuner was necessary...  :2vrolijk_21:


Have the "Big Blue" crowd developed the secret handshake yet?

"Big Blue" club motto........"I will show you mine, if you show me yours"


LOL

This is fun......

"Big Blue" CVO Patches, but must have a BIG Blue VIN to order.....

 :2vrolijk_21:





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Formally FLHTCUSE3
SoA #99.9            "Never say Die"
SEST,   open A/C , dyno tuned, D&D Fatcats 2 into 1 ceramic coated, new SE CNC Ported and coated Heads with 2.120 intake valve, SE camplate,
Jims SE Crank "Darkhorsed", Timkin conversion, Andrews 54H cams, Arnott Air shocks, intimidator front valves, HID headlights, LED turn signals, Moto Lights,  Zumo 550, SE compensator.

Midnight Rider

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Re: To Tune or Not to Tune?
« Reply #20 on: August 23, 2011, 11:30:41 AM »

The Ventilator air cleaner is already a high flow air cleaner.  There is no need to change it out.  But it can only suck in as much as what's going out.  If you remove the cat, more air is flowing through the system, and the ability of the stock ECM and narrow band sensors to compensate by adding enough fuel is highly suspect, IMO.
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Cowboy2

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Re: To Tune or Not to Tune?
« Reply #21 on: August 23, 2011, 06:32:42 PM »


Have the "Big Blue" crowd developed the secret handshake yet?
"Big Blue" club motto........"I will show you mine, if you show me yours"
LOL
This is fun......
"Big Blue" CVO Patches, but must have a BIG Blue VIN to order.....


Hey Keats, jealous are you?  To have that much of a fatty over this, you must be just pure insanely jealous...  Go spank your monkey somewhere else.

WadeH...  The safe thing to do is run your setup on a Dyno with exhaust gas probe analysis to make sure you are not running too lean.  With the stock air cleaner, gutten  cat, and Monster Ovals, mine was fine all he way through the RPM curve.  One dead giveaway if you do not have a dyno near you, is that IF these are running too lean, they do the big snap-crackle-pop and backfire through decompression.   A little is normal, a lot,- and you are too lean.  Hope this is a help... 
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Keats

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Re: To Tune or Not to Tune?
« Reply #22 on: August 23, 2011, 07:59:30 PM »


Jealous?
That is funny......
Big Blue is a nice looking bike, but would hardly make my top 10 in my book of Harley's
That is just personal preference.

Making fun of a useless registry that has no purpose is entertaining to me.

Maybe they will be collectible, like all of those 2003
Hundred Anniv bikes.


Have fun with your bikes and ride safe










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Formally FLHTCUSE3
SoA #99.9            "Never say Die"
SEST,   open A/C , dyno tuned, D&D Fatcats 2 into 1 ceramic coated, new SE CNC Ported and coated Heads with 2.120 intake valve, SE camplate,
Jims SE Crank "Darkhorsed", Timkin conversion, Andrews 54H cams, Arnott Air shocks, intimidator front valves, HID headlights, LED turn signals, Moto Lights,  Zumo 550, SE compensator.

Midnight Rider

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Re: To Tune or Not to Tune?
« Reply #23 on: August 24, 2011, 02:07:40 PM »

Hey Keats, jealous are you?  To have that much of a fatty over this, you must be just pure insanely jealous...  Go spank your monkey somewhere else.

WadeH...  The safe thing to do is run your setup on a Dyno with exhaust gas probe analysis to make sure you are not running too lean.  With the stock air cleaner, gutten  cat, and Monster Ovals, mine was fine all he way through the RPM curve.  One dead giveaway if you do not have a dyno near you, is that IF these are running too lean, they do the big snap-crackle-pop and backfire through decompression.   A little is normal, a lot,- and you are too lean.  Hope this is a help... 

A WOT pull on a Dyno is not a good indication of what the A/F ratio is in "typical" riding conditions.  I'm just sayin'....
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Sometimes it takes a whole tankful of fuel before you can think straight.
I had the right to remain silent, just not the ability...

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Fullsac X Pipe w/2" Baffles
Legend Air Ride Rear Shocks
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miker

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Re: To Tune or Not to Tune?
« Reply #24 on: August 24, 2011, 02:19:47 PM »

5%....... ;)
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grc

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Re: To Tune or Not to Tune?
« Reply #25 on: August 24, 2011, 02:25:22 PM »


I sometimes think folks get sidetracked when this question comes up due to well intentioned advice from folks who aren't up to speed on the differences between the older ('06 and earlier) EFI models and the current bikes with closed loop EFI.  With the older non-feedback system, any change that altered air flow through the engine would also alter the air fuel mixture.  So the advice to always get the bike tuned after changing air cleaners and/or exhaust systems was correct.  But, with the new system the ECM has the capability to self adjust to compensate for a certain amount of air flow change, so that old advice is no longer necessarily valid.

Maybe a better question would be to ask the OP if he is fully satisfied with how his bike runs currently.  If he is, then it is quite likely that he could just change the pipes and forget about the tune.  On the other hand, if he would prefer his bike respond more smoothly as well as run a little cooler, a good tune would be in order even if he didn't change pipes or anything else. 


JMHO - Jerry
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Gamma742

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Re: To Tune or Not to Tune?
« Reply #26 on: August 27, 2011, 08:48:49 AM »

I added a "TTS Master Tune" before doing anything else to the bike. I was couldn't believe how much better the bike ran (more responsive and cooler). Then I did the rest of the Fulsac Kit.. and it ran even better..

IMO all CVO bike should be re-turned as they are setup from the factory WAY too lean to pass the EPA restrictions imposed by the Feds.

If you want to ride a CVO with the EPA's foot on your bike's throat... do nothing.
If you want to ride a CVO the way it was meant to be ridden.. get the tunner of your choice.


I have a SERT on the wife's bike and a TTS on mine. I prefer (recommend) the TTS!! 
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Re: To Tune or Not to Tune?
« Reply #27 on: September 07, 2011, 10:53:03 PM »

Tune.......as soon as possible. I think any mechanic worth his weight will agree with all the guys here. TUNE NOW!!

Maybe it's just my mechanic... but getting an ECM 'flashed' by a Harley Dealer will only compensate for a few minor adjustments.  Noticeable, yes... but there's a whole new engine waiting to get the right tuning.

An aftermarket 'tuner' is the only way to get around all of the EPA regulations that Harley must abide by, and the only way to get the True potential that the factory 110 can produce.

I haven't made any drastic changes (pulled baffles and glass from stock pipes) that the bike shouldn't already be able to handle... still getting 37 to 44 mpg... but my mechanic tells me with the right tuner, it can go from the stock 74hp up to a full 100hp, and my gas mileage will only climb... so long as I can respect the throttle.
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