|
|
» Main Menu |
|
Discussion Forums
Features
Motorcycle.com Links
Contribute
Motorcycle Forums
|
|
| Sprint Forum Sprint ST - Sprint RS - Sprint GT Join in on one of the world's most active Triumph Sport-Touring Forums. |
 |
|
04-14-2008, 04:17 PM
|
#1 (permalink)
|
|
Lifetime Premium
Site Supporter
SuperSport Favourite Bike: 08 Pacific Blue Sprint ST
Join Date: Feb 2008
Location: Belle Chasse, LA USA
Posts: 1,364
|
That sweet triple whine!
What causes the unique whine at idle and low RPMs on the Triumph triples? I test rode a Rocket III and it had a supercharger sounding whine that I thought was cool. I heard a Street Triple running at a dealer this weekend, and it had the same whine. So, I guess this isn't unique to the Rocket, so what causes it?
__________________
2008 Sprint ST 1050 ABS - Pacific Blue
TOR muffler and tune, 18T front sprocket, Triumph flip-up Aero screen, K&N air filter, Powerbronze Hugger and RAM mounted GPS!
|
|
|
|
Sponsored Links
|
Advertisement
|
|
|
04-14-2008, 04:33 PM
|
#2 (permalink)
|
|
Senior Member
Powerbike Favourite Bike: 2006 Triumph Sprint ST
Join Date: Feb 2008
Location: Arkansas
Posts: 297 Other Motorcycle: 1998 Yamaha WR400F
|
Quote:
Originally Posted by caddydaddy
What causes the unique whine at idle and low RPMs on the Triumph triples? I test rode a Rocket III and it had a supercharger sounding whine that I thought was cool. I heard a Street Triple running at a dealer this weekend, and it had the same whine. So, I guess this isn't unique to the Rocket, so what causes it?
|
Timing belt 
|
|
|
|
04-14-2008, 05:55 PM
|
#3 (permalink)
|
|
Lifetime Premium
Site Supporter
SuperSport Favourite Bike: 08 Pacific Blue Sprint ST
Join Date: Feb 2008
Location: Belle Chasse, LA USA
Posts: 1,364
|
Really? I would have thought these modern engines would be chain driven! What's the maintenance interval for the belt?
__________________
2008 Sprint ST 1050 ABS - Pacific Blue
TOR muffler and tune, 18T front sprocket, Triumph flip-up Aero screen, K&N air filter, Powerbronze Hugger and RAM mounted GPS!
|
|
|
|
|
04-14-2008, 06:18 PM
|
#4 (permalink)
|
|
Lifetime Premium
Site Supporter
SuperSport Favourite Bike: 08 Pacific Blue Sprint ST
Join Date: Feb 2008
Location: Belle Chasse, LA USA
Posts: 1,364
|
Quote:
Originally Posted by a1fa-
Timing belt |
Ahhh, you're messing with me, ya punk! 
http://www.triumphrat.net/sprint-for...on-1050-s.html
So if it's not the mystery timing belt, then what is it? The water pump, alternator? C'mon, someone must know! 
__________________
2008 Sprint ST 1050 ABS - Pacific Blue
TOR muffler and tune, 18T front sprocket, Triumph flip-up Aero screen, K&N air filter, Powerbronze Hugger and RAM mounted GPS!
|
|
|
|
|
04-14-2008, 06:44 PM
|
#5 (permalink)
|
|
Super Daffy Moderator
Site Supporter
Nova Favourite Bike: 2011 Sprint GT 1050
Join Date: Mar 2005
Location: Brisbane Australia
Posts: 17,626 Other Motorcycle: 2004 Daytona 955
|
Valve gear train
It's the bevel drive on the desmodromic valve gear!
DaveM
|
|
|
|
|
04-14-2008, 07:37 PM
|
#6 (permalink)
|
|
Lifetime Premium
Site Supporter
SuperSport Favourite Bike: 08 Pacific Blue Sprint ST
Join Date: Feb 2008
Location: Belle Chasse, LA USA
Posts: 1,364
|
So Ducati is making Triumph engines! What's this world coming to with all this outsourcing crap??? 
__________________
2008 Sprint ST 1050 ABS - Pacific Blue
TOR muffler and tune, 18T front sprocket, Triumph flip-up Aero screen, K&N air filter, Powerbronze Hugger and RAM mounted GPS!
|
|
|
|
|
04-14-2008, 07:45 PM
|
#7 (permalink)
|
|
Senior Member
SuperSport Favourite Bike: '06/'07 Frankensprint
Join Date: May 2006
Location: Over Here
Posts: 1,116 Other Motorcycle: Cannondale Tandem Extra Motorcycle: Cannondale R1000
|
Straight cut primary gears. (crankshaft to clutch basket)
|
|
|
|
|
04-14-2008, 07:49 PM
|
#8 (permalink)
|
|
Lifetime Premium
Site Supporter
SuperSport Favourite Bike: 08 Pacific Blue Sprint ST
Join Date: Feb 2008
Location: Belle Chasse, LA USA
Posts: 1,364
|
Quote:
Originally Posted by CLB
Straight cut primary gears. (crankshaft to clutch basket)
|
Is there a reason Triumph made them that way? Aren't most bike manufacturers trying to cut down on engine/transmission noises?
__________________
2008 Sprint ST 1050 ABS - Pacific Blue
TOR muffler and tune, 18T front sprocket, Triumph flip-up Aero screen, K&N air filter, Powerbronze Hugger and RAM mounted GPS!
|
|
|
|
|
04-14-2008, 08:05 PM
|
#9 (permalink)
|
|
Senior Member
SuperSport Favourite Bike: '06/'07 Frankensprint
Join Date: May 2006
Location: Over Here
Posts: 1,116 Other Motorcycle: Cannondale Tandem Extra Motorcycle: Cannondale R1000
|
Noise vs. efficiency I would imagine. Too much bevel also creates end thrust loads.
|
|
|
|
|
04-14-2008, 08:22 PM
|
#10 (permalink)
|
|
Senior Member
SuperStock Favourite Bike: 06 Sprint ABS
Join Date: Dec 2007
Location: Knox Tn
Posts: 247 Other Motorcycle: 02 Warrior 108CI Extra Motorcycle: your sister
|
Quote:
Originally Posted by caddydaddy
Is there a reason Triumph made them that way? Aren't most bike manufacturers trying to cut down on engine/transmission noises?
|
yeah, but man dont it sound cool
|
|
|
|
| Sponsored Links |
Advertisement
|
|
|
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
