The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Intake and Exhaust > Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

Active Threads
0 Dirt bike front wheel??
Last Post: 45Brit
Posted On: 2 Minutes Ago
Replies: 15
Views: 825
0 I guess it''s true. (2019 The Last Year For The Sportster?)
Last Post: Nibelungen
Posted On: 14 Minutes Ago
Replies: 120
Views: 5,051
0 trans slips in 2nd gear 1989 883
Last Post: juzyHD
Posted On: 35 Minutes Ago
Replies: 4
Views: 91
0 Start up
Last Post: ryder rick
Posted On: 1 Hour Ago
Replies: 9
Views: 197
0 This week on Craig's list
Last Post: ryder rick
Posted On: 1 Hour Ago
Replies: 4,234
Views: 492,115
0 What brand synthetic oil do you use
Last Post: Bikeaholic
Posted On: 2 Hours Ago
Replies: 436
Views: 107,719
0 Buell heads and cams!
Last Post: aswracing
Posted On: 2 Hours Ago
Replies: 2
Views: 57
0 Bike can't go over 75miles.
Last Post: hammer6315
Posted On: 2 Hours Ago
Replies: 13
Views: 714
0 What oil and filter to use in 2005 1200c
Last Post: hammer6315
Posted On: 2 Hours Ago
Replies: 39
Views: 1,037
0 You asked for it! "The Tess' Coffee Thread"
Last Post: sportsterpaul
Posted On: 3 Hours Ago
Replies: 10,853
Views: 887,807
0 gearing is too high ?
Last Post: rocketmangb
Posted On: 3 Hours Ago
Replies: 65
Views: 3,577
0 Need some advice on 1983 Ironhead
Last Post: IronMick
Posted On: 3 Hours Ago
Replies: 4
Views: 113
0 First startup
Last Post: Iron Mike
Posted On: 3 Hours Ago
Replies: 10
Views: 372
0 Problem with my 1998 1200S
Last Post: ftwflh
Posted On: 4 Hours Ago
Replies: 3
Views: 127
0 Torx screws on clutch cover
Last Post: wedge
Posted On: 5 Hours Ago
Replies: 5
Views: 133
0 Show your favorite pic of your bike. just one
Last Post: Lone Rider
Posted On: 5 Hours Ago
Replies: 4,729
Views: 1,805,387
0 Harley Restoration Book
Last Post: John Harper
Posted On: 7 Hours Ago
Replies: 2
Views: 89
0 Share your Sunrise OR Sunset Photos!
Last Post: DK Custom
Posted On: 7 Hours Ago
Replies: 21
Views: 1,037
0 Hottie of the day, no nudity.
Last Post: trainman
Posted On: 8 Hours Ago
Replies: 13,074
Views: 1,197,565
0 Power Loss At Sustained High RPMs
Last Post: rocketnorton
Posted On: 9 Hours Ago
Replies: 27
Views: 874
0 Who Runs Turn Signals?
Last Post: lespaul6
Posted On: 9 Hours Ago
Replies: 351
Views: 72,805
0 Grenade Plate
Last Post: rocketmangb
Posted On: 9 Hours Ago
Replies: 17
Views: 511
0 Tachos, heads, drives abd Cables
Last Post: Scootin-Newton
Posted On: 9 Hours Ago
Replies: 19
Views: 1,129
0 Call the new 2020 models Sportsters?
Last Post: jzink0883
Posted On: 9 Hours Ago
Replies: 140
Views: 12,490
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 9 Hours Ago
Replies: 44,715
Views: 7,030,713
0 Rocker Lockers - Quiet Down Annoying Top End Ticking
Last Post: DK Custom
Posted On: 10 Hours Ago
Replies: 69
Views: 20,305
0 Sadly Leaving
Last Post: jcn59
Posted On: 10 Hours Ago
Replies: 18
Views: 672
0 Bigger valves
Last Post: 60Gunner
Posted On: 10 Hours Ago
Replies: 5
Views: 182
0 DK Coil and Coil/Key Relocation Customer Review and Pics
Last Post: DK Custom
Posted On: 10 Hours Ago
Replies: 85
Views: 22,088
0 New Here, building drag bike with Buell M2
Last Post: aswracing
Posted On: 12 Hours Ago
Replies: 2
Views: 119
More...
Members Birthdays
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #171  
Old 4 Weeks Ago
madnss's Avatar
madnss madnss is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2008
Posts: 7,131
Sportster/Buell Model: 883 Xl
Sportster/Buell Year: 1992
Reputation: 1286242
madnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond repute
Default

Quote:
Originally Posted by 60Gunner View Post
The CycleShack slip ons, Rush slip ons, and while my Khromewerks HP Plus wasn't dyno'd against it, Dan and I compared my recent dyno and a Cycleshack dyno and mine was 2-3 hp higher at any given rpm. Not real scientific but the Cycleshack dyno had the same cams on their EFI dyno tuned shop mule. Mine was tuned by ear by myself, is carbed, and I was a little light on the main. I was still doing 87ft.lbs of torque by 4000rpm. 77ft.lbs at 2300rpm.
Like I said, not real scientific, but on the same bike you're going have a pretty hard time beating this exhaust til after 5000 rpm with any 2in1.
It was a favorite at an exhaust shootout at sportster.org years ago because it does so well over the entire rpm range. Not just up top.
Been around forever and the only exhaust baffle I know of with a patent.
One of the best kept secrets in exhaust IMHO.

Rush slip ons had the PD up to 5700rpm. Hammer compared a lot of exhausts to the PD. The dynos are on their website.

Rite on !
Reply With Quote
Sponsored Links
  #172  
Old 4 Weeks Ago
madnss's Avatar
madnss madnss is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2008
Posts: 7,131
Sportster/Buell Model: 883 Xl
Sportster/Buell Year: 1992
Reputation: 1286242
madnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond repute
Default

Quote:
Originally Posted by bustert View Post
exh only fine tune, cams set where the power lies
What? Lmao ok, sure

That’s a bold statement Cotton lol
Reply With Quote
  #173  
Old 4 Weeks Ago
Highly-Dangerous's Avatar
Highly-Dangerous Highly-Dangerous is offline
SPANIARD
 
Join Date: Apr 2019
Location: 17130 Spain
Posts: 348
Sportster/Buell Model: XL 883
Sportster/Buell Year: 2006
Other Motorcycle Model: Big Dog K9
Other Motorcycle Year: 2006
Reputation: 829940
Highly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond reputeHighly-Dangerous has a reputation beyond repute
Default

Quote:
Originally Posted by 60Gunner View Post
The CycleShack slip ons, Rush slip ons, and while my Khromewerks HP Plus wasn't dyno'd against it, Dan and I compared my recent dyno and a Cycleshack dyno and mine was 2-3 hp higher at any given rpm. Not real scientific but the Cycleshack dyno had the same cams on their EFI dyno tuned shop mule. Mine was tuned by ear by myself, is carbed, and I was a little light on the main. I was still doing 87ft.lbs of torque by 4000rpm. 77ft.lbs at 2300rpm.
Like I said, not real scientific, but on the same bike you're going have a pretty hard time beating this exhaust til after 5000 rpm with any 2in1.
It was a favorite at an exhaust shootout at sportster.org years ago because it does so well over the entire rpm range. Not just up top.
Been around forever and the only exhaust baffle I know of with a patent.
One of the best kept secrets in exhaust IMHO.

Rush slip ons had the PD up to 5700rpm. Hammer compared a lot of exhausts to the PD. The dynos are on their website.
__________________
CLICK->>"Maintenance is as much art as it is science"<<-CLICK

Reply With Quote
  #174  
Old 4 Weeks Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 9,462
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 2620664
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

well, put a set of cams in and choke it, do they work well???
i guess you are one that believes headers are tuned right out the box, man heard that before.
man i got 20 more hp with my new headers but in reality, they lost 20 hp.
lets us not get into expansion chambers.
Reply With Quote
  #175  
Old 4 Weeks Ago
60Gunner's Avatar
60Gunner 60Gunner is offline
Chief of Security
 
Join Date: Sep 2017
Location: United States
Posts: 1,761
Sportster/Buell Model: 1200/1250C
Sportster/Buell Year: 05
Reputation: 1958074
60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute
Default

Just to be clear, I'm not saying there aren't good 2in1s or one is better than the other. Just that there's duals out there that make just as good of power. Especially on a street bike thats not doing 7000rpm. I may or may not dyno again with my jetting changed and breathing issue fixed(umbrellas failed) but I'm quite certain conservative numbers are 88/88. Now that might not seem like a lot but for my cams(570s) on a carbed 1250, stock heads, and not dynotuned, it's pretty good when you consider I'm all in by 5500rpm. The torque curve for my exhaust is pretty much the same as my cams. So while it doesnt make huge peak power numbers, it comes on real strong from 3500 to 5500 then levels off. Makes for some really good torque where I want it.
That's why I went with the cams I did. They're a bolt on for stock rubbermounts and they're nice bump where I want but don't lose anywhere else.
So it all comes down to where you want your power. Much like choosing cams. I could get a little better peak HP numbers with something like the PD but I'd be losing some of that power further down.
The PD was an exceptionally good 2 in 1 in the fact it performed pretty good at lower rpm and pretty much sets the standards above 5500.
The supertrapp supermeg is adjustable where you can move the power band up or down the rpm range. But adjust it for best peak HP and it won't do so well further down. If memory serves it had some pretty good reversion issues in some areas at least in some configurations.
So what constitutes a good exhaust is subjective to a point but don't rule out a good 2in2 because you think only 2in1s make good power.
Asking what the best exhaust is is like asking what the best cams are. Depends on what you need it to do.
Why would you want an exhaust that makes it's best power at 5000 to 7000 rpm but doesn't do so well at lower rpm if you never wind you motor out more than 3000. And there's people here that ride like that.
__________________
05 1200/1250C/Hammer 570 Cams/E1 clutch kit
TC88A Gunner's V00D00 map/DCPR7E/Taylor Pro 8mm
S&S Premium Lifters/KhromeWerks HP Plus 3" slip ons
HSR42 25 pilot 2 turns Y8 needle jet 97 needle 2nd groove 170 main
Dragtron II AC K&N filter/VR1 20W50/Spectro 85wt Primary Oil


Last edited by 60Gunner; 4 Weeks Ago at 18:36..
Reply With Quote
  #176  
Old 4 Weeks Ago
madnss's Avatar
madnss madnss is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2008
Posts: 7,131
Sportster/Buell Model: 883 Xl
Sportster/Buell Year: 1992
Reputation: 1286242
madnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond repute
Default

Quote:
Originally Posted by bustert View Post
well, put a set of cams in and choke it, do they work well???
i guess you are one that believes headers are tuned right out the box, man heard that before.
man i got 20 more hp with my new headers but in reality, they lost 20 hp.
lets us not get into expansion chambers.
I guess I am lmao or not.

Headers, tuned, expansion chambers.....sure thing pal

I Test my results with a dyno or 1/4, 1/8 mile mph. I’m good to go in all categories chief.
Reply With Quote
  #177  
Old 4 Weeks Ago
madnss's Avatar
madnss madnss is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2008
Posts: 7,131
Sportster/Buell Model: 883 Xl
Sportster/Buell Year: 1992
Reputation: 1286242
madnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond reputemadnss has a reputation beyond repute
Default

In my experience with the evo 5 speed. Exhaust choice is way more crucial and moves the powerband around way more than a cam sets.
Reply With Quote
  #178  
Old 4 Weeks Ago
hexnut's Avatar
hexnut hexnut is offline
Senior Chief Know It All
 
Join Date: Oct 2014
Location: middle Tennessee
Posts: 892
Sportster/Buell Model: Sportster Superlow 1250
Sportster/Buell Year: 2014
Reputation: 1459749
hexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond reputehexnut has a reputation beyond repute
Default

It takes very little HP to cruise at 60 to 70 MPH, but when I'm ripping through the gears at 7400 RPM I want all I can get.
__________________
2014 Sportster Superlow, Hammer 1250, smash head work, 560 cams, S&S rockers and lifters. ported throttle body and intake,
Hammer crush air cleaner, Barnett clutch
Tuned by Power Vision
Supertrapp Supermegs exhaust
1200 gearing, super brace
Progressive suspension front & rear
Reply With Quote
  #179  
Old 4 Weeks Ago
60Gunner's Avatar
60Gunner 60Gunner is offline
Chief of Security
 
Join Date: Sep 2017
Location: United States
Posts: 1,761
Sportster/Buell Model: 1200/1250C
Sportster/Buell Year: 05
Reputation: 1958074
60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute
Default

Quote:
Originally Posted by madnss View Post
In my experience with the evo 5 speed. Exhaust choice is way more crucial and moves the powerband around way more than a cam sets.
I agree...to a point. It sure can have an affect on how well the cams have an effect if that makes sense. Especially with cams like mine with 56° overlap. The exhaust if plays well with them that overlap really helps performance but that overlap can really hurt if the exhaust isn't up to the task.

Last edited by 60Gunner; 4 Weeks Ago at 01:48..
Reply With Quote
  #180  
Old 4 Weeks Ago
60Gunner's Avatar
60Gunner 60Gunner is offline
Chief of Security
 
Join Date: Sep 2017
Location: United States
Posts: 1,761
Sportster/Buell Model: 1200/1250C
Sportster/Buell Year: 05
Reputation: 1958074
60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute
Default

Quote:
Originally Posted by hexnut View Post
It takes very little HP to cruise at 60 to 70 MPH, but when I'm ripping through the gears at 7400 RPM I want all I can get.
I cruise at higher rpm than most probably. I spend 90% of my time cruising around 3500 or so but rarely wind it out much more than 5500 to 6000 but a lot of upshifting/downshifting.
I'm in my power curve most of the time.
Gotta admit 90ft.lbs.of torque coming on by 4000rpm is a fun ass street bike.

Last edited by 60Gunner; 4 Weeks Ago at 01:55..
Reply With Quote
Sponsored Links
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



Sponsored Links
All times are GMT +1. The time now is 06:50.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC