HP for 103 engine
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Stage I
Joined: Apr 2017
Posts: 1
Likes: 0
From: Buffalo, NY
HP for 103 engine
I recently had a stage 1 upgrade to my 2013 Heritage softail classic. SE slip ons, Arlen Ness air kit and tuner was added. The bike was dyno tuned and results were 72 HP and 96 TQ. Anybody else have similar results?
Seasoned HDF Member
Joined: Oct 2012
Posts: 13,108
Likes: 13,057
From: Texas, USA
Welcome to the forum from central Texas.
A stage I upgrade is only going to translate into a 5-10% increase in power. If you are really looking to improve the HP and TQ you have to upgrade to at least a stage II. Your numbers sound reasonable for a 103 engine with a stage I. Could they be better? Possibly. Could they be worse? Possibly. They're in the ballpark.
You have a tuner that can help enrich the AFR, cool the engine and provide a limited increase in power. It is my opinion that a dyno tune with only a stage I is not necessary. It's perfectly fine to do it and there is no harm but it is trying to get maximum power from a set up that isn't designed for maximum power. Will the money spent for a dyno tune provide such a benefit in HP and TQ over the tuner alone to justify it's cost? Not in my opinion.
After a stage II, I believe a dyno is highly recommended.
A stage I upgrade is only going to translate into a 5-10% increase in power. If you are really looking to improve the HP and TQ you have to upgrade to at least a stage II. Your numbers sound reasonable for a 103 engine with a stage I. Could they be better? Possibly. Could they be worse? Possibly. They're in the ballpark.
You have a tuner that can help enrich the AFR, cool the engine and provide a limited increase in power. It is my opinion that a dyno tune with only a stage I is not necessary. It's perfectly fine to do it and there is no harm but it is trying to get maximum power from a set up that isn't designed for maximum power. Will the money spent for a dyno tune provide such a benefit in HP and TQ over the tuner alone to justify it's cost? Not in my opinion.
After a stage II, I believe a dyno is highly recommended.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 837
From: KMHT KFMY
if you are that high on torque I'd say you were good.
you don't buy a HD for HP, it is all about torque.
you can get HP, but it is going to cost a lot of money, and you will probably kick yourself when it is done or you go to sell the bike
you don't buy a HD for HP, it is all about torque.
you can get HP, but it is going to cost a lot of money, and you will probably kick yourself when it is done or you go to sell the bike
Novice
Joined: Jan 2016
Posts: 19
Likes: 2
From: Michigan
Just had my 12 ultra dynoed and it had 79 hp ,can't remember the torque. Arlen Ness big sucker after market head pipe 2-1-2, Bassani mufflers with 2" cores and Power Vision tuner. They told me it would make more power with bigger cores in mufflers but I would rather be able to listen to the radio if l want.
Stage I
Joined: Apr 2017
Posts: 1
Likes: 0
From: texas
How much power should I have?
Hello,
This is my first time posting so if this is the wrong area for this question, please let me know. thanks
I have an '05 ultra classic
4 1/4 bore - JE forged pistons
4" stroke - stock crank and connector rods
10.38:1 comp
T-Man590 cams - gear drive
S&S camplate, S&S oil slinger, S&S HV oil pump
beehive springs
hydro lifters
1.91 intake - manley stainless one piece
1.64 exhaust - same
63mm TB/intake
Ported/Polished
Crusher true duals
Direct Link Tuner
How much hp and torque can i expect?
This is my first time posting so if this is the wrong area for this question, please let me know. thanks
I have an '05 ultra classic
4 1/4 bore - JE forged pistons
4" stroke - stock crank and connector rods
10.38:1 comp
T-Man590 cams - gear drive
S&S camplate, S&S oil slinger, S&S HV oil pump
beehive springs
hydro lifters
1.91 intake - manley stainless one piece
1.64 exhaust - same
63mm TB/intake
Ported/Polished
Crusher true duals
Direct Link Tuner
How much hp and torque can i expect?
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