Purplexing dyno results
Thread Starter
|
Cruiser
Joined: Aug 2010
Posts: 163
Likes: 0
From: Bismarck, ND
Purplexing dyno results
The PO of my 09 ultra had a stage one put in from the dealer when he bought it new. The dealer installed a SERT, SE air intake, Rinehart slip ons. I'm about to have a 106 big bore kit and 551 cams installed so I had a "before" dyno run. I've looked at dyno results from stock 96" Ultras and they seem to run in the mid 70's max torque and mid 60's max hp. (the one's I've found online anyway). So mine with a stage one read exactly that. Stock. It doesn't seem like the stage one did squat for torque or hp. Now if I had been the one spending the money on that I would have been a bit unhappy. I wonder why there was no gain in power? Maybe the slip-ons are the culprit? I expected a bit more.
Road Warrior
Joined: Jul 2009
Posts: 1,979
Likes: 2
From: Northern Colorado
In order to make a true dyno comparison it has to be same bike, same day, same dyno etc. I believe elevation also has an effect. You are comparing apples to oranges here. It would be nice if you knew your bike's stock numbers but I'll bet it got a 10-15% increase in hp and tq with the stage 1.
Supporter
Joined: Feb 2008
Posts: 4,133
Likes: 147
From: Grays Creek, NC
I would think you would be getting a little better numbers? Do you plan on using a better flowing headpipe with your 106 build? Like a fuel moto type or a 2-1 headpipe?
Last edited by hd_rolling; Oct 24, 2010 at 02:22 PM.
Road Warrior
Joined: Jul 2009
Posts: 1,979
Likes: 2
From: Northern Colorado
Fuel Moto headers are very similar to stock 09 headers, you wouldn't be gaining much by going that route.
Thread Starter
|
Cruiser
Joined: Aug 2010
Posts: 163
Likes: 0
From: Bismarck, ND
Well I'm not 100% sure what I'm going to do with the pipes if anything. I'm first going to find out how the bike feels with the 106 and 551's. I'm going to have a dyno as well to see what that looks like and mostly to check the fuel settings. I'm taking off the SERT and putting on a power commander v with autotune. If the results are weak I'll have to consider a 2-1 or do the heads. I don't know. All I really want is more torque in the cruising ranges so anything up to 4000 rpms. Hopefully the S&S stuff will be enough.
Thread Starter
|
Cruiser
Joined: Aug 2010
Posts: 163
Likes: 0
From: Bismarck, ND
In order to make a true dyno comparison it has to be same bike, same day, same dyno etc. I believe elevation also has an effect. You are comparing apples to oranges here. It would be nice if you knew your bike's stock numbers but I'll bet it got a 10-15% increase in hp and tq with the stage 1.
Extreme HDF Member
Joined: Dec 2006
Posts: 10,045
Likes: 36
From: ST. Louis
Trending Topics
Stellar HDF Member
Joined: Sep 2007
Posts: 2,447
Likes: 663
From: Vancouver Island B.C.
The PO of my 09 ultra had a stage one put in from the dealer when he bought it new. The dealer installed a SERT, SE air intake, Rinehart slip ons. I'm about to have a 106 big bore kit and 551 cams installed so I had a "before" dyno run. I've looked at dyno results from stock 96" Ultras and they seem to run in the mid 70's max torque and mid 60's max hp. (the one's I've found online anyway). So mine with a stage one read exactly that. Stock. It doesn't seem like the stage one did squat for torque or hp. Now if I had been the one spending the money on that I would have been a bit unhappy. I wonder why there was no gain in power? Maybe the slip-ons are the culprit? I expected a bit more.
Last edited by Lonewolf176; Oct 22, 2010 at 10:52 PM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Stellar HDF Member
Joined: Sep 2007
Posts: 2,447
Likes: 663
From: Vancouver Island B.C.
I think Jamies x pipe is quite a bit better. The only thing changed on this sheet was the head pipe and retuned. The dip is due to Thunderheader slip ons.