The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle General Discussion and Problems
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Sportster Motorcycle General Discussion and Problems For discussing problems about your Sportster motorcycle that don't fit anywhere else.

Active Threads
0 Peanut, 3.3 or 4.5 gas tank ?
Last Post: Jcolleyoh
Posted On: 1 Minute Ago
Replies: 227
Views: 68,344
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 11 Minutes Ago
Replies: 20,735
Views: 2,131,160
0 Breather timing off just a bit 1974 engine
Last Post: kitabel
Posted On: 16 Minutes Ago
Replies: 21
Views: 561
0 Carb not squirting fuel
Last Post: firevf06
Posted On: 37 Minutes Ago
Replies: 8
Views: 77
0 Keep & Kill
Last Post: Crusty
Posted On: 43 Minutes Ago
Replies: 17,835
Views: 1,041,576
0 Bendix insulator block
Last Post: bustert
Posted On: 1 Hour Ago
Replies: 15
Views: 524
0 Was your 1st bike a Sportster?
Last Post: bill smith
Posted On: 1 Hour Ago
Replies: 1,027
Views: 251,034
0 Fun or money?
Last Post: bill smith
Posted On: 1 Hour Ago
Replies: 25
Views: 624
0 A surprising and nice experience (Peg Vibration)
Last Post: XL Dane
Posted On: 1 Hour Ago
Replies: 8
Views: 231
10 big bore question
Last Post: dragstews
Posted On: 1 Hour Ago
Replies: 61
Views: 12,936
0 Cylinder head interchangeability.. .
Last Post: harley506d
Posted On: 2 Hours Ago
Replies: 3
Views: 56
0 77 XLT smokes a lot on start up
Last Post: brucstoudt
Posted On: 2 Hours Ago
Replies: 4
Views: 366
0 Starter Relay Issues
Last Post: sleighcrane
Posted On: 2 Hours Ago
Replies: 7
Views: 133
0 Smoke and top end job
Last Post: Civil War Harley
Posted On: 2 Hours Ago
Replies: 4
Views: 175
0 Totally no connection fault..or is there?
Last Post: npaisnel
Posted On: 2 Hours Ago
Replies: 8
Views: 118
0 Picture gallery
Last Post: JonesL
Posted On: 3 Hours Ago
Replies: 2
Views: 74
0 Experts Help - Factory OEM Tachometer 2001 883 Custom
Last Post: tbn
Posted On: 3 Hours Ago
Replies: 8
Views: 387
0 Just installed 70900274 combo gauge - fuel light stuck on
Last Post: Virto
Posted On: 4 Hours Ago
Replies: 18
Views: 252
0 Roads I'd like to ride.
Last Post: Stairman
Posted On: 4 Hours Ago
Replies: 3,164
Views: 297,193
0 Intermittent electrical problem
Last Post: Wirelic
Posted On: 4 Hours Ago
Replies: 6
Views: 147
0 What I learned today "Map Sensors"
Last Post: IXL2Relax
Posted On: 5 Hours Ago
Replies: 12
Views: 1,461
0 Stalling when given throttle - video
Last Post: Boogiemanjoe
Posted On: 5 Hours Ago
Replies: 23
Views: 3,281
0 I'm here to introduce Gristle.
Last Post: Steve9
Posted On: 6 Hours Ago
Replies: 12
Views: 195
0 Touring on a Hugger
Last Post: ChinCactus
Posted On: 6 Hours Ago
Replies: 34
Views: 3,551
0 This is gonna hurt.
Last Post: NLXL
Posted On: 6 Hours Ago
Replies: 8,127
Views: 1,724,400
0 Have i knackered something ?
Last Post: John Harper
Posted On: 6 Hours Ago
Replies: 11
Views: 472
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 7 Hours Ago
Replies: 47,980
Views: 7,708,547
0 ....1
Last Post: Graywolf
Posted On: 7 Hours Ago
Replies: 5,676
Views: 329,211
0 Neat trick-- No split ends
Last Post: Maxeffort
Posted On: 8 Hours Ago
Replies: 1
Views: 130
0 Run up on the bench
Last Post: rocketmangb
Posted On: 8 Hours Ago
Replies: 1
Views: 80
More...
Members Birthdays
Reply
 
Share Thread Tools Display Modes
  #61  
Old 20th January 2006
MsPotatoPotatoHead's Avatar
MsPotatoPotatoHead MsPotatoPotatoHead is offline
Biker
 
Join Date: Jan 2006
Location: Durango, Colorado
Posts: 58
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2004
Other Motorcycle Model: FLSTCI
Other Motorcycle Year: 2004
Reputation: 10
MsPotatoPotatoHead is an unknown quantity at this point
Default

Damn, my dealer charges only $39 for the dyno run, and $189 for a full dyno tuning (if you go for the tune after a dyno run, you only pay the additional $150).

Anytime I make a change to either of my bikes' basic engine/fuel setup I spring for a dyno tune because I want to make sure I'm getting the best performance I can out of my bike and that my air/fuel ratio is not f*$%ed up by the change. (My Heritage is FI and has a Power Commander on it, so they charge less to dyno tune that bike.) Being at high altitude and having the ability to change altitude by as much as 7000-8000 feet in one day makes it really important to have my carb'ed Sporty dialed in.
__________________
2004 Sportster XL1200C - Lava Red Sunglo
2004 Heritage Softail Classic - Luxury Teal
:smoke
Reply With Quote
  #62  
Old 20th January 2006
Phil R Phil R is offline
Harley Engineer
 
Join Date: Dec 2004
Location: Albany, New York
Posts: 326
Sportster/Buell Model: XL1200R
Sportster/Buell Year: 2005
Phil R has disabled reputation
Default

I find some of this stuff a little hard to believe. My '05 1200R showed 72.15 HP and 71.44 Torque when tuned last fall on the Dynojet with Supertrapp 2:1, NHRS Hurricane Flow and appropriate jetting for the setup. My bike goes like a bat outa hell with the torque peak down at 3,500 rpms without losing anything at the top end. I could probably push the HP up by adding discs and raising the torque peak, but 80HP, I gotta see that one.
Reply With Quote
  #63  
Old 20th January 2006
Turbota's Avatar
Turbota Turbota is offline
Senior Master Custom Bike Builder
 
Join Date: Nov 2004
Location: Philippines
Posts: 5,258
Reputation: 8681
Turbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of light
Default

Phil ....

Your Stage 1 made just about the same as mine when I had a Stage 1.

Mine made 71 rwhp SAE corrected (don't remember the torque)

Bone stock, these 04-06 make 60 rwhp
__________________
04 XL 1222R

NRHS Stage 2 Heads / NRHS 10.5-1 Thunderstorm Pistons / Zipper's 567 Cams / Mikuni HSR42 Carb
RevTech Roller Rockers / Andrews Adj. Pushrods / RB Racing 2-1 Exhaust / Twin Tec TC88A Ignition
Reply With Quote
  #64  
Old 20th January 2006
XLFREAK XLFREAK is offline
No Posts
 
Join Date: Nov 2004
Posts: 0
XLFREAK is an unknown quantity at this point
Default

I found another place that will do a dyno for $85.00 not including any tuning...

Sheeeet is expensive...

Loco
So. Cal.
Reply With Quote
  #65  
Old 20th January 2006
CBAS5 CBAS5 is offline
Senior Master Custom Bike Builder
 
Join Date: Aug 2005
Posts: 3,858
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 05
Reputation: 69037
CBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud ofCBAS5 has much to be proud of
Default

Hmm.... This is interesting stuff. Both you guys were running 2-1 systems and made around 71-72 hp. While if you look at the dyno's from other's people's bikes they are running slip-ons and and a/c to get 75-80. It seems like cycle shack's and the big ness sucker are a good combination. This is just a quick observation. I would like to see other dyno sheets and what people are running to see if there's a correlation.
__________________
2005 XL1200C
Those who trade liberty for security have neither.
Reply With Quote
  #66  
Old 20th January 2006
XLFREAK XLFREAK is offline
No Posts
 
Join Date: Nov 2004
Posts: 0
XLFREAK is an unknown quantity at this point
Default

Quote:
Originally Posted by CBAS5
Hmm.... This is interesting stuff. Both you guys were running 2-1 systems and made around 71-72 hp. While if you look at the dyno's from other's people's bikes they are running slip-ons and and a/c to get 75-80. It seems like cycle shack's and the big ness sucker are a good combination. This is just a quick observation. I would like to see other dyno sheets and what people are running to see if there's a correlation.
I'd have to say no to that..... I just switched from SEII slip-ons to a Bassani Road Rage 2-1, and noticed a dramatic increase in power.

I'd say it depends more on the individual scoot as to the actual power gains.
Reply With Quote
  #67  
Old 20th January 2006
xl1200r's Avatar
xl1200r xl1200r is offline
Senior Custom Bike Builder
 
Join Date: Nov 2004
Location: North Greenbush, NY
Posts: 2,955
Sportster/Buell Model: Buell 1125CR
Sportster/Buell Year: 2009
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1964
Other Motorcycle Model: Kawasaki Ninja 250
Other Motorcycle Year: 2006
Reputation: 1866
xl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura about
Default

Quote:
Hmm.... This is interesting stuff. Both you guys were running 2-1 systems and made around 71-72 hp. While if you look at the dyno's from other's people's bikes they are running slip-ons and and a/c to get 75-80. It seems like cycle shack's and the big ness sucker are a good combination. This is just a quick observation. I would like to see other dyno sheets and what people are running to see if there's a correlation.
This all depends on tuning, and variances in the dyno. My first dyno run was with a SE A/C, SEII slip-ons and Yosh carb kit and I made 72hp. When I added a Supertrapp 2:1 (same as Phil R's) it jumped to 76 hp. Like Phil said, I could probably push the HP up by adding discs, and a 7000rpm ICM would give me 80hp as well. I'm just wondering if this 80hp standard Stage 1 stuff is a combination of dyno variances and a little rounding. If my bike was making 78hp, I might be inclined to tell people (especially ones who I was trying to impress) that it makes 80 - not really a lie, but it's pushing the truth. I just have a hard believeing that there's an 8hp difference between two dyno readings with SAE corrected numbers with optimal tuning.
Reply With Quote
  #68  
Old 20th January 2006
Turbota's Avatar
Turbota Turbota is offline
Senior Master Custom Bike Builder
 
Join Date: Nov 2004
Location: Philippines
Posts: 5,258
Reputation: 8681
Turbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of lightTurbota is a glorious beacon of light
Default

Quote:
Originally Posted by CBAS5
Hmm.... This is interesting stuff. Both you guys were running 2-1 systems and made around 71-72 hp.
I made 71 rwhp on my 04 1200R with a set of SE Pro II slip-on muffs, an SE air cleaner and a re-jetted stock carb running a near perfect 13.0 to 1 AFR.
Reply With Quote
  #69  
Old 20th January 2006
XLFREAK XLFREAK is offline
No Posts
 
Join Date: Nov 2004
Posts: 0
XLFREAK is an unknown quantity at this point
Default

Quote:
Originally Posted by xl1200r
This all depends on tuning, and variances in the dyno. My first dyno run was with a SE A/C, SEII slip-ons and Yosh carb kit and I made 72hp. When I added a Supertrapp 2:1 (same as Phil R's) it jumped to 76 hp. Like Phil said, I could probably push the HP up by adding discs, and a 7000rpm ICM would give me 80hp as well. I'm just wondering if this 80hp standard Stage 1 stuff is a combination of dyno variances and a little rounding. If my bike was making 78hp, I might be inclined to tell people (especially ones who I was trying to impress) that it makes 80 - not really a lie, but it's pushing the truth. I just have a hard believeing that there's an 8hp difference between two dyno readings with SAE corrected numbers with optimal tuning.
I believe that it is not only normal, but also expected to see a difference in the power numbers for identical bikes.

Read Aaron's post in the NRHS section on straightness and roundness of cylinders. The numbers on factory parts are all over the place.

If you get a bike that ended up with 2 straight, round cylinders from the factory, it'll probably produce some surprising horsepower numbers.

One that has good specs on one jug, but loose specs on the other might fall in the "normal" or "expected" power range.

The poor bastard who ends up with a bike with two cylinders on the loose side of the spec is gonna be down on power.

We're talking mass-produced assembly line engines here, folks.... When the rings aren't sealing up the bore all the way through the stroke of the piston, you are gonna lose power. It's just going to vary from bike to bike as to how much we are talking about.
Reply With Quote
  #70  
Old 20th January 2006
xl1200r's Avatar
xl1200r xl1200r is offline
Senior Custom Bike Builder
 
Join Date: Nov 2004
Location: North Greenbush, NY
Posts: 2,955
Sportster/Buell Model: Buell 1125CR
Sportster/Buell Year: 2009
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1964
Other Motorcycle Model: Kawasaki Ninja 250
Other Motorcycle Year: 2006
Reputation: 1866
xl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura aboutxl1200r has a spectacular aura about
Default

I think the only way I'm going to be convinced of this is to see a bike get dyno'd with the exact same setup on two different dyno's.

And if the factory is putting out a product with specs as all over the place to make a 12% difference in power from one bike to the next, then they may have a lawsuit on thier hands if anyone starts engine dynoing stock bikes to see if they make is in the line with the factory's claims. Ford was dumb enough to get caught with the Mustangs, I think everyone learned from thier mistake.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT +1. The time now is 19:52.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC