2:1 or 2:2 exhaust? : V-Twin Forum: Harley Davidson Forums
» Sponsors

» Insurance
Go Back   V-Twin Forum : Harley-Davidson Motorcycle Forums > V-Twin Performance Forums > Twin-Cam Engine Mods
New User? Register Forgot Password

Reply
 
LinkBack Thread Tools Display Modes
Old 11-07-2010, 03:39 PM   #1 (permalink)
Seasoned Rider
 
Join Date: Jun 2009
Location: Blue Springs MO
Posts: 83
Michael M wants to know Dino or Syn?
2:1 or 2:2 exhaust?

Trying to decide if I want to go with a 2:1 or go with a 2:2 conversion? Has anybody tried both? I'm curious what the results were, dyno or seat of the pants. If I decide to go with 2:2 I would most likely keep my Vance and Hines ovals. Has anyone gone this route?
Michael M is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-07-2010, 04:16 PM   #2 (permalink)
Average Dude
 
YankeeBob's Avatar
 
Join Date: Jul 2004
Location: Tuftonboro, NH (near Lake Winnipesaukee)
Posts: 6,258
YankeeBob is reading this now saying WTF is this?
Nothing wrong with stock pipes and slip ons if you are looking for low end tq. and don't care about the top end. If you want to get every inch of tq and ounce of hp, then a good 2-1 is the way to go.
__________________
"Sh!t doesn't stink unless you poke it"

Deut. 23:12-13
YankeeBob is offline   Reply With Quote
Old 11-07-2010, 04:52 PM   #3 (permalink)
Lifetime Premium
 
Join Date: May 2009
Location: Iowa
Posts: 60
bwdogman wants to know Dino or Syn?
I had true duel Rhineharts and went to 2 into 1. The results were that the true duel produced 113 lbs of torque and the 2 into 1 produce 108 lbs. But the 2 into 1 stayed above 100 lbs for alot longer.
bwdogman is offline   Reply With Quote
Old 11-07-2010, 09:13 PM   #4 (permalink)
Let er rip!
 
oh1deuce's Avatar
 
Join Date: Jun 2004
Location: MN
Posts: 2,876
oh1deuce wants to know Dino or Syn?
I've tried both and couldn't stand the look or the sound of a 2:1 setup.
__________________


107" built by Hyperformance aka King of Cubes
R&R St. V cast heads
R&R 615/585's
R&R Cam plate
R&R Roller Rockers
oh1deuce is offline   Reply With Quote
Old 11-07-2010, 10:37 PM   #5 (permalink)
Lifetime Premium
 
motorheads5's Avatar
 
Join Date: Feb 2010
Location: ketchikan alaska
Posts: 826
motorheads5 is reading this now saying WTF is this?
2:1 sound like crap until they are wound up high IMO. I like the vtwin for what it is big torque and lower rev's. If I want a race bike I will ride my RICE.
motorheads5 is offline   Reply With Quote
Old 11-07-2010, 10:41 PM   #6 (permalink)
IronButt
 
Join Date: Oct 2010
Location: Kansas City Metro
Posts: 107
seglide120r wants to know Dino or Syn?
Quote:
Originally Posted by bwdogman View Post
I had true duel Rhineharts and went to 2 into 1. The results were that the true duel produced 113 lbs of torque and the 2 into 1 produce 108 lbs. But the 2 into 1 stayed above 100 lbs for alot longer.

I wonder if this would hold true for the 117" plus builds? The rhinehart true duals have a stepped header design and I'm wondering if they would perform as well or better than a D&D Boarzilla. Sure wish the dealer would let me find out free of charge.

Any of you supertuner guys out there have experience with this subject?
seglide120r is offline   Reply With Quote
Old 11-09-2010, 10:00 AM   #7 (permalink)
Lifetime Premium
 
JetD's Avatar
 
Join Date: Jun 2008
Location: Chile Flats, AZ
Posts: 189
JetD wants to know Dino or Syn?
Not a super (or any other) tuner, but have been through several tests and dyno bouts with different pipe systems (including changing out elements within 2:1 systems as well as within 2:2 systems), and long phone visits with the techs of 5 different system manufacturers; and short of posting the detail sheets at this point, suffice to say that I agree with looks and sound of previous sentiments regarding 2:2 vs. 2:1 systems (with one possible exception) -- 2:2 sounds and looks better to me. The sound is appreciably better (again imho) and the looks just have a better "look" (but this is more subjective... the 'eye of the beholder' etc.)
That said, in my case, the 2:1 produced better power (hp & tq) across the band; came on earlier and stayed longer.

PS: Eshaust thread?
__________________

'13 FLTRU a new beginning -->
_____________________________

'10 FLHTCU StageI --> (GMR) 107" gone---que sera!
_____________________________

'07 FLSTC 117ci (GMR) gone---que sera!

_____________________________

Last edited by JetD; 11-09-2010 at 10:03 AM.
JetD is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 02:57 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
(C)2001-2012 V-twinForum.com All Rights Reserved (C)2001- V-twinForum.com All Rights Reserved
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum