Sprintex SC with SE2 cams ??? - Page 2 - 1130cc.com: The #1 Harley Davidson V-Rod Forum
» Sponsors
Go Back   1130cc.com: The #1 Harley Davidson V-Rod Forum > V-ROD Discussions > V-ROD Big Bore/Turbo/SC/NOS area
New User? Register - Forgot Password

Reply
 
Thread Tools Display Modes
Old 09-06-2019, 03:15 PM   #16
RONVROD
My Last Ride
 
RONVROD's Avatar
 
Join Date: Aug 2014
Location: State of Confusion
Posts: 1,315
Images: 7
Garage
Feedback Score: 2 reviews
Quote:
Originally Posted by Elgavilan View Post
That would not work as the change would be way to large, we're talking degrees of change here. Movement of 1/8" to 1/4" is all you need, a half inch would be a really large change.

Sent from my Moto Z (2) using Tapatalk
With two bolts and all of those teeth you could drill multiple alternate bolt patterns.

RONVROD is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-06-2019, 03:25 PM   #17
Elgavilan
The Hawk
 
Elgavilan's Avatar
 
Join Date: Sep 2004
Location: Yuma, Arizona
Posts: 3,722
Images: 21
Feedback Score: 16 reviews
Then how are you going to line up the timing marks?


Sent from my iPad using Tapatalk
__________________
It's not how fast you go, it's how fast you get there!
Elgavilan is online now   Reply With Quote
Old 09-06-2019, 06:00 PM   #18
RONVROD
My Last Ride
 
RONVROD's Avatar
 
Join Date: Aug 2014
Location: State of Confusion
Posts: 1,315
Images: 7
Garage
Feedback Score: 2 reviews
Quote:
Originally Posted by Elgavilan View Post
Then how are you going to line up the timing marks?


Sent from my iPad using Tapatalk
Make new timing marks to coordinate with the new hole pattern. A #2 carbide center drill does an excellent job of engraving. With a CNC milling machine you would locate the sprocket center, index the original timing marks, determine the number of sprocket teeth required for an adequate margin between the bolt holes and then rotate the hole pattern and the markings. The sprocket has 32 teeth which is a 11.25º separation angle.

It's doubtful that 11.25º would provide an adequate margin between the holes so I'll use two sprocket teeth or 22.5º for the example. For a 2º incremental advance you would rotate the hole pattern and marking 20.5º clockwise, 18.5º clockwise, 16.5º and so on. For a 2º incremental retard you would substitute counter clockwise for clockwise in the example.
RONVROD is offline   Reply With Quote
 
Old 09-06-2019, 09:39 PM   #19
Elgavilan
The Hawk
 
Elgavilan's Avatar
 
Join Date: Sep 2004
Location: Yuma, Arizona
Posts: 3,722
Images: 21
Feedback Score: 16 reviews
Yeah you could do all that, but why not spend 10 minutes with a Dremel, elongate the sprocket holes and have much finer adjustment that works. Mine had about 200 trips down the drag strip and 10 years of riding and never had a single problem with it.


Sent from my iPad using Tapatalk
__________________
It's not how fast you go, it's how fast you get there!
Elgavilan is online now   Reply With Quote
Old 09-07-2019, 01:50 PM   #20
RONVROD
My Last Ride
 
RONVROD's Avatar
 
Join Date: Aug 2014
Location: State of Confusion
Posts: 1,315
Images: 7
Garage
Feedback Score: 2 reviews
Quote:
Originally Posted by Elgavilan View Post
Yeah you could do all that, but why not spend 10 minutes with a Dremel, elongate the sprocket holes and have much finer adjustment that works. Mine had about 200 trips down the drag strip and 10 years of riding and never had a single problem with it.


Sent from my iPad using Tapatalk
I would never send an engine out of my shop with the camshaft indexed in a slot.
RONVROD is offline   Reply With Quote
Old 09-07-2019, 03:05 PM   #21
Elgavilan
The Hawk
 
Elgavilan's Avatar
 
Join Date: Sep 2004
Location: Yuma, Arizona
Posts: 3,722
Images: 21
Feedback Score: 16 reviews
You do realize that the stock cam sprockets have one of the holes elongated or slotted!

Sent from my Moto Z (2) using Tapatalk
__________________
It's not how fast you go, it's how fast you get there!
Elgavilan is online now   Reply With Quote
Old 09-08-2019, 06:42 AM   #22
RONVROD
My Last Ride
 
RONVROD's Avatar
 
Join Date: Aug 2014
Location: State of Confusion
Posts: 1,315
Images: 7
Garage
Feedback Score: 2 reviews
Quote:
Originally Posted by Elgavilan View Post
You do realize that the stock cam sprockets have one of the holes elongated or slotted!

Sent from my Moto Z (2) using Tapatalk
The engineer chose that design to eliminate the possibility of a conflict between three points of positive location.
RONVROD 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

Forum Jump

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 10:54 AM.



Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Motorcycle News, Videos and Reviews
Honda Grom Forum strong>Kawasaki Z125 Forum Harley Davidson Forum Honda 600RR Forum Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Honda Africa Twin 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 Ducati 959 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 Victory Charger Forum Honda Vultus Forum HD LiveWire Forum Ninja H2 Forum
BMW Scrambler Forum Ducati Scrambler Forum Kawasaki Ninja 250SL Forum