Dynos for Dynas
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Joined: Mar 2009
Posts: 62
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Dynos for Dynas
It may be presumptuous of me being a fng here, but I noticed that the softail and bagger guys have stickied dyno threads. Doesn't make sense for the "slow" bikes to have dedicated dyno threads and the hot rod Dynas don't. If a mod would sticky this, s'il vous plait...
I'll start. 103 Stage III (10.5 pistons, 251 cams, valve springs, SERT), Heavy breather, Khrome Werks slip-ons. HP 91.55 TQ 104.71
I'll start. 103 Stage III (10.5 pistons, 251 cams, valve springs, SERT), Heavy breather, Khrome Werks slip-ons. HP 91.55 TQ 104.71
Road Captain
Joined: May 2007
Posts: 596
Likes: 7
From: Illinois
Not a bad idea, although I don't think dyno #s mean much, as there's so many variables, but I'll contribute!
Vance and Hines Slip-ons
Screamin Eagle AC
Techlusion TFI 1250st set at Green-4:15 Yellow-4:15 Red-6:45 RPM-3:50
Max power = 72.56
Max Torque= 83.76
Vance and Hines Slip-ons
Screamin Eagle AC
Techlusion TFI 1250st set at Green-4:15 Yellow-4:15 Red-6:45 RPM-3:50
Max power = 72.56
Max Torque= 83.76
Last edited by Donny; Mar 22, 2009 at 10:46 AM.
Road Warrior
Joined: Nov 2008
Posts: 1,789
Likes: 9
From: Double Oak, Texas
Okay, me too. SE Pro stuff, 103", 260 cams, Hvy breather, CNC ported heads, 50 mm throttle bodies, hi flow injectors, SERT, perfect fit pushrods, sure I forgot something.
Posted along with stock HP and Torque
Posted along with stock HP and Torque
Road Warrior
Joined: Apr 2008
Posts: 1,899
Likes: 8
From: Aurora, IL
95", Ported heads, 9.8:1, SE flat tops, Andrews 37G, Cycle shack pipes, Dynotek TC88 module, 42mm Mikuni. Tuned on BP 92 octane.
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Road Captain
Joined: Mar 2009
Posts: 689
Likes: 6
From: Glen Rose TX
However if everyone trys to post up the information with a before and after on the same day, whenever possible, and note the following.
1> What were the changes to the Bike on the Before and after runs. Was it a matter of bolting on parts and then getting it tuned or was it a build up and if so what was the original condition of the previous motor
2> What was the difference in the Ambient conditions, colder warmer barometric pressure higher of lower etc.
A lot of this will be included on the Dyno chart but sometimes they are hard to read and it is usually unclear exactly what mods were done.
The original poster with the 103cu in motor build shows some real nice gains but it was unclear to me if the two charts are his original motor.... was it stock or??
Bottom line is it can be a real good tool for seeing a percentage change of a given set of mods to the same bike done on the same dyno under at least similar ambient conditions. Comparing different bikes on different dynos though is not apples to apples.
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Seasoned HDF Member
Joined: Oct 2008
Posts: 7,638
Likes: 4,871
From: Missouri City,TX
Had mine dyno'ed Saturday...no tuning, just put on the dyno.
With HD stage 1 intake, HD download and V&H sideshots, it did 66.34rwhp 78.55rwtq
Changed air filters to a Zippers filter, it's 5/8" deeper for more surface area, and put right back on the dyno. It was 67.10rwhp and 78.83 rwtq.
My numbers seem a bit low
...I'm going back this Wednesday to have a SERT installed and have it dyno tuned...I'll follow up with the new numbers and post the dyno sheets then.
With HD stage 1 intake, HD download and V&H sideshots, it did 66.34rwhp 78.55rwtq
Changed air filters to a Zippers filter, it's 5/8" deeper for more surface area, and put right back on the dyno. It was 67.10rwhp and 78.83 rwtq.
My numbers seem a bit low
...I'm going back this Wednesday to have a SERT installed and have it dyno tuned...I'll follow up with the new numbers and post the dyno sheets then.
Road Warrior
Joined: Apr 2008
Posts: 1,899
Likes: 8
From: Aurora, IL
In some cases I strongly disagree.
Look at my sheets and look at this one. Same head porter, same cams, different carb, different builder, different tuner, different state, very similar numbers.
'06 WFOLarry ported TC heads, stock valves and springs (and quench grooves)
95" SE flat tops
82cc head chamber and .030" cometic head gasket
Andrews TW37b cams
44CV carb running 46 pilot (3 turns out), 195 main, spring supplied by Larry and N8EL lean needle
Zippers filter upgrade on SE backplate
SE6200 performance ignition
Cycle Shack slip-ons on factory head pipe
Last edited by redrubicon2004; Mar 30, 2009 at 09:07 AM.