ironhead rejetting super e for drag pipes : V-Twin Forum: Harley Davidson Forums
» Sponsors

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

Reply
 
LinkBack Thread Tools Display Modes
Old 07-08-2007, 11:53 AM   #1 (permalink)
FNG :)
 
Join Date: Mar 2004
Location: albany, oregon
Posts: 20
crpntr_iam wants to know Dino or Syn?
ironhead rejetting super e for drag pipes

i've got a '78 sportster, my question is to change to 1 3/4 drag pipes do i have to re-jet my carb? i have a s&s super e. if re-jetting is needed, what size jet do i use? any help will be appreciated.
crpntr_iam is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-08-2007, 01:20 PM   #2 (permalink)
Premium Member
 
Join Date: Mar 2007
Location: Central Point, OREGON
Posts: 303
dirtrace95 wants to know Dino or Syn?
jet

A 66 jet is pretty much what id run in that bike. The drag pipes will kill all your bottom end though. You might just want to think about some loader sort of slip on mufflers. The performance will be much better. Your not going to like the twist the throttle and wait for it thing that drag pipes give.
dirtrace95 is offline   Reply With Quote
Old 07-09-2007, 09:13 AM   #3 (permalink)
Banned
 
Join Date: Dec 2003
Location: Munnsville NY
Posts: 4,509
Hillside wants to know Dino or Syn?
Drag Pipes

Quote:
Originally Posted by dirtrace95
A 66 jet is pretty much what id run in that bike. The drag pipes will kill all your bottom end though. You might just want to think about some loader sort of slip on mufflers. The performance will be much better. Your not going to like the twist the throttle and wait for it thing that drag pipes give.
A 66 or 64 main with a 28 or 265 intermediate.
With most engines, a simple 1 1/2 long, 1/4" bolt, with 5/16 nuts, stacked up
(usually 3 will do),inside the pipe,
will control the reversion, and still give you the sound and look, and hardly effect peak hp numbers, but drives a pile of low end torque into the picture.
In some cases (and yours could be one of them) a 5/16 bolt with 3/8 nuts may be needed.
Works like a charm every time.
Hillside is offline   Reply With Quote
Old 05-01-2009, 03:51 PM   #4 (permalink)
Premium Member
 
Join Date: Mar 2007
Location: Central Point, OREGON
Posts: 303
dirtrace95 wants to know Dino or Syn?
drag pipes

Quote:
Originally Posted by Hillsidecycle.com View Post
A 66 or 64 main with a 28 or 265 intermediate.
With most engines, a simple 1 1/2 long, 1/4" bolt, with 5/16 nuts, stacked up
(usually 3 will do),inside the pipe,
will control the reversion, and still give you the sound and look, and hardly effect peak hp numbers, but drives a pile of low end torque into the picture.
In some cases (and yours could be one of them) a 5/16 bolt with 3/8 nuts may be needed.
Works like a charm every time.
I used some 1/4in thumb screws and turned them side ways,
there even adjustable. While on the dyno I kept turning them
alittle more till the peak hp just started to drop, locked them
there and the bottom end was good too.
dirtrace95 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 11:23 PM.


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 HD LiveWire Forum