103" Twin Cam "SHO" dyno numbers - Harley Davidson Forums

Go Back   Harley Davidson Forums > Harley Davidson Motorcycles > Dyna Glide Models
Log In 


Dyna Glide Models Super Glide, Super Glide Sport, Super Glide Custom, FXR Super Glide, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.

103" Twin Cam "SHO" dyno numbers

Reply
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 12-08-2008, 03:45 AM
Centerline Centerline is offline
Road Warrior
Join Date: Nov 2008
Location: Double Oak, Texas
Posts: 1,789
Default 103" Twin Cam "SHO" dyno numbers

Last week the requisite 1,000 miles was reached for my dealer to perform a dyno tune of the 103" engine that my new Fat Bob was modded to when I bought the bike. For sure it is no inline 4 litre bike, or a match for my 145HP Ducati Monser. But the numbers are pretty fine for an antique, air-cooled V-Twin engine.
Hope the columns below stay lined up when posted.

My build is all Screamin' Eagle parts, (exc pipes). CNC ported heads, 50mm throttle bodies w/ hi-flo injectors, 10.5 HTCC pistons, 260 Cams, SE tappets, SE ECU, Heavy breather, D&D Fat Cat 2-1 pipe.
Numbers are at the rear wheel.

Stock 96" Twin Cam......................My 103" SHO

RPM....Torque....RWHP............RPM...Torque.....RWHP
2500...75 ft-lb....38 HP...........2500....80 ft-lb....35 HP

3000...77 ft-lb....45 HP...........3000....86 ft-lb....50 HP

3500...78 ft-lb....52 HP...........3500....96 ft-lb....66 HP

4000...75 ft-lb....56 HP...........4000....100 ft-lb...78 HP An extra 22 ft-lbs over max stock !

4500...70 ft-lb....60 HP...........4500....100 ft-lb...90 HP

5000...65 ft-lb....63 HP...........5000....98 ft-lb.....95 HP

5500...62 ft-lb....63 HP...........5500....98 ft-lb.....103 HP

6000...X.............X................6000....90 ft-lb.....105 HP That's an extra 42 HP over stock !!

6500...X.............X................6500....85 ft-lb.....103 HP


Pleased with the numbers. The bike pulls really hard and just keeps pulling harder as the revs rise. The engine is still loosening up and I expect it will yield a few more ponies.

Last edited by Centerline; 12-08-2008 at 04:16 AM. Reason: column spacing
Reply With Quote
  #2  
Old 12-08-2008, 04:35 AM
ZChan ZChan is offline
One Of The Regulars
Join Date: Oct 2007
Location: Southwest USA
Posts: 236
Default

Those look like good numbers. Thanks for posting them. I probably would rarely use the higher rpm's though. More than enough power in the middle where I ride.
Reply With Quote
  #3  
Old 12-08-2008, 04:49 AM
Centerline Centerline is offline
Road Warrior
Join Date: Nov 2008
Location: Double Oak, Texas
Posts: 1,789
Default

Know what you mean, but when I twist the wick, especially below 80 mph, the RPM winds out of the mid range pronto, not to mention that the upper rpm range on the big V twin seems like low to mid range for a sport bike guy like me.

Last edited by Centerline; 12-08-2008 at 05:10 AM.
Reply With Quote
  #4  
Old 12-08-2008, 06:10 AM
sniper77 sniper77 is offline
Outstanding HDF Member
Join Date: Sep 2007
Location: Augusta, GA
Posts: 3,352
Default

Those are great #s but I thought a 103" build was the step up for an 88" engine and a 110" was the step up for a 96"??
Reply With Quote
  #5  
Old 12-08-2008, 07:06 AM
Dawg Rider Dawg Rider is offline
Road Warrior
Join Date: Jul 2007
Location: Sasser, GA
Posts: 1,443
Default

96 to 103 = 88 to 95.
Reply With Quote
  #6  
Old 12-08-2008, 07:16 AM
formike56 formike56 is offline
Club Member
Join Date: May 2008
Location: San Marcos, Texas
Posts: 2,464
Send a message via Yahoo to formike56
Default

those are good numbers. I had the same build when I purchased my WG. Except I had the 255 cams. @ 5500 mine was gettin 98Lbs torque 96 hp to the wheel. It will get better once it loosens up a little.
Reply With Quote
  #7  
Old 12-08-2008, 08:26 AM
domenicp7 domenicp7 is offline
Outstanding HDF Member
Join Date: Jun 2007
Location: Dallas,Tx
Posts: 2,682
Default

Formike you are getting good numbers with that build also. I think I need to really look at the Fat Cat 2 into 1
Reply With Quote
  #8  
Old 12-08-2008, 08:30 AM
sniper77 sniper77 is offline
Outstanding HDF Member
Join Date: Sep 2007
Location: Augusta, GA
Posts: 3,352
Default

Quote:
Originally Posted by Dawg Rider View Post
96 to 103 = 88 to 95.
Thanks, brain fart this mornin'!
Reply With Quote
  #9  
Old 12-08-2008, 10:28 AM
dyna mo dyna mo is offline
Banned
Join Date: Sep 2008
Posts: 367
Default

nice! intersting that the hp at 2500rpm is a bit lower but the torque is increased over stock

btw, which monster cranks out 145hp?
Reply With Quote
  #10  
Old 12-08-2008, 12:20 PM
murphdog murphdog is offline
Road Master
Join Date: Jul 2005
Location: Mauldin, SC
Posts: 916
Default

The horsepower numbers at 2500 rpm appear to be reversed.
75*2500/5252=35.7hp
80*2500/5252=38.08hp
Reply With Quote
 
 
 
P
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
FP3 owners Gordon61 Ignition/Tuner/ECM/Fuel Injection 12 10-02-2015 04:21 PM
100 Hp, 100 ft/lb Club...Member? 103FLHX General Harley Davidson Chat 114 03-28-2013 07:19 PM
TR-625 cams, NEW WI Bob Touring Parts 1 08-28-2012 08:39 PM
Best way to get a 96 incher to the 100/100 club marty44 Softail Models 17 01-05-2008 03:09 AM
Stage 1 Big Twin vs. Stage 1 Sportster 1200 HP & TQ sportin_2007 General Harley Davidson Chat 2 01-30-2007 12:57 AM


Tags
103, 88engine, 96, 96to, cam, comparison, davidson, dyna, dyno, engine, harley, harleys, horsepower, stock, torque, twin

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off

Forum Jump


All times are GMT -5. The time now is 06:23 PM.