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Jan 16th, 2008, 10:18 AM
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#1
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Newbie
Join Date: Jul 2007
Posts: 7
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I've got a 2002 FLSTFI Fatboy. It has the Kuryakin 'V' filter (K&N), thunder header and a stage I upgrade. I just bought the Samson Big Guns II Street Sweeper exhaust (with torque cones) and now I'm unsure if I'll need to remap the computer. They're not installed yet. Any thoughts?
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Jan 16th, 2008, 10:38 AM
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#2
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Has posted 500+
Join Date: Feb 2007
Location: middleburg, pa
Posts: 696 Model: 06 FLST hertiage, stage 1 1450 pc111 Interests: hunting,wood working Occupation: medical asst. tech/DPW
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sounds like you will need to. just about any change in air flow would benefit from a map change.
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Jan 16th, 2008, 11:27 AM
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#3
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Moderator
Has posted 500+
Join Date: Jul 2005
Posts: 4,560
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yup. ditto what skull said!!
nice bike  |
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Jan 16th, 2008, 12:05 PM
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#4
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Newbie
Join Date: Jul 2007
Posts: 7
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Quote:
Originally Posted by chucktx
yup. ditto what skull said!!
nice bike |
Well, since I did the stage I it seems to be running a little rich (I'm such a carb guy). How would I know if it needed a map change? Or should I just pony up the $150 to flash the box?
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Jan 16th, 2008, 12:49 PM
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#5
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Has posted 500+
Join Date: Feb 2007
Location: middleburg, pa
Posts: 696 Model: 06 FLST hertiage, stage 1 1450 pc111 Interests: hunting,wood working Occupation: medical asst. tech/DPW
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the only way to know or adjust it would be to go with a aftermarket fuel management system. the steeler will want for you to go with their "race-tuner". or worst they'll will flash your ecm with one of their shot in the dark downloads, then maybe dyno you $$$$$  so i would recommend thinking about one of these two:
1. thunder max
2. powercommander III
your'll have to spend $350- $900, but it will be an investment over time and give you control over your "maps" and plus not have have to depend on the steeler  good luck with your choice  |
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Jan 16th, 2008, 01:05 PM
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#6
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Newbie
Join Date: Jul 2007
Posts: 7
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Quote:
Originally Posted by skull2007
the only way to know or adjust it would be to go with a aftermarket fuel management system. the steeler will want for you to go with their "race-tuner". or worst they'll will flash your ecm with one of their shot in the dark downloads, then maybe dyno you $$$$$ so i would recommend thinking about one of these two:
1. thunder max
2. powercommander III
your'll have to spend $350- $900, but it will be an investment over time and give you control over your "maps" and plus not have have to depend on the steeler good luck with your choice |
At first I thought it (steeler) was a typo.  I suppose I'll just work another weekend so I can buy the PC III. Thanks |
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Jan 16th, 2008, 01:34 PM
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#7
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Has posted 500+
Join Date: Jan 2007
Location: Michigan
Posts: 548 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
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Looks like ya have a 2-1 Thunderheader exhuast in the picture, just curious, why are ya going to straight drag pipes?
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Jan 16th, 2008, 01:40 PM
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#8
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Has posted 500+
Join Date: Sep 2006
Location: cheyenne wy
Posts: 802 Model: 06 flhxi Interests: family,fun, fast chrome Occupation: causing hate and discontent
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good question ringo, I'm guessing he ain't from denver though  |
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Jan 16th, 2008, 01:41 PM
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#9
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Has posted 500+
Join Date: Jun 2004
Posts: 1,989
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JMO
Thundermax about $600 you install it, easy as cake, it tunes the bike as you ride so be sure to get the auto tune feature.
PC3 WILL NEED a dyno tune.
Down the road you change pipes the Tmax adjusts the PC3 will not, same if you change filter, cams, pistons, head work etc the Tmax does the dyno tune.
call Phil at California Phils Concordia, KS (785) 243-9991 he sells the Tmax at a good price tell him HRK sent you, that way he'll only gig you an extra 10% for my commission LOL
BTW what are you going to do with the thunderheader and what year is the mid-year under the cover, 63 -67 is what it looks like, |
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Jan 16th, 2008, 01:55 PM
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#10
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Newbie
Join Date: Jul 2007
Posts: 7
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Quote:
Originally Posted by ringo912
Looks like ya have a 2-1 Thunderheader exhuast in the picture, just curious, why are ya going to straight drag pipes?
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I picked up the Samson Big Guns II Street Sweepers off Craigslist for $200. I like the two pipe look. Looks like it's a bigger hassle than a carb'd engine for sure. Welp, I'll try to sell the Samson's to recoup some $$$ and stay with the Thunderheaders. I'm hearing you guys think they're better anyway. 
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Jan 16th, 2008, 01:58 PM
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#11
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Has posted 500+
Join Date: Feb 2007
Location: middleburg, pa
Posts: 696 Model: 06 FLST hertiage, stage 1 1450 pc111 Interests: hunting,wood working Occupation: medical asst. tech/DPW
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from what i've read up on thundermax is the leader in this department. seems thundermax is by far the best choice. my pc iii has worked flawlessly for the past couple years. if i had to do over again i'd go with thundermax
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Jan 16th, 2008, 02:03 PM
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#12
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Has posted 500+
Join Date: Jan 2007
Location: Michigan
Posts: 548 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
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Straight headers are ok for the strip, on a street bike you will loose a lot of performace. For performance, 2 into 1 is the best bet. JMO but it's been my experience that torque cones don't really do anything for performance.
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Jan 16th, 2008, 08:42 PM
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#13
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Moderator
Has posted 500+
Join Date: Jul 2005
Posts: 4,560
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Quote:
Originally Posted by Dino
Well, since I did the stage I it seems to be running a little rich (I'm such a carb guy). How would I know if it needed a map change? Or should I just pony up the $150 to flash the box?
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looking at your pipes, they dont show a rich condition....from the pic they look just about right. keep the pipes you have and loose the streetsweepers....your getting good advise....... |
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Jan 17th, 2008, 11:08 AM
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#14
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Has posted 500+
Join Date: Jun 2004
Posts: 1,989
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Thundermax and thunderheader, get the 02 bungs in the thunderheader for the sensors it's the best deal.
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Jan 22nd, 2008, 09:51 AM
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#15
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More than 100 posts!
Join Date: Dec 2004
Location: Knoxville, TN
Posts: 158 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
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I Agree With Chucktx, Looks Like They Are Burning Good, Mine Are Black, But Think It Is A Little To Rich. Great Looking Bike By The Way
Dkin21
Live Easy, Ride Hard
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