"DYNO" Numbers For SOFTAILS
Cruiser
Joined: Apr 2006
Posts: 175
Likes: 7
From: Las Vegas
HP and TQ won't cross over on a Vtwin.... looks like your ideal HP/TQ RPM is approx 3500 RPM....pretty typical for a Harley.
Cruiser
Joined: Jan 2014
Posts: 149
Likes: 0
From: Danville Il
Thanks man, just wanted someone elses opinion.
Cruiser
Joined: Apr 2006
Posts: 175
Likes: 7
From: Las Vegas
No worries...on really high RPM motors usually not found in a harley frame....TQ can build faster with HP catching up with RPM...usually not typically in a tractor like harley motor or at least what Ive seen.
Elite HDF Member
Joined: May 2012
Posts: 3,747
Likes: 5
From: Central Cali
Just got my bike back from the dyno. I am floored at the results. It pulls sooooo friggin hard. Also, no compression releases... just using the 574 easy start crane cams and they work like a charm.
107" cylinders
No Headwork
574 Easy Start Crane Cams (Chris "Rocket" Rivas endorsed cams)
CP Pistons (10.75:1)
Big Sucker (extended filter)
Big Shot Staggered
PC111
107" cylinders
No Headwork
574 Easy Start Crane Cams (Chris "Rocket" Rivas endorsed cams)
CP Pistons (10.75:1)
Big Sucker (extended filter)
Big Shot Staggered
PC111
Also, is it necessary to get the bike retuned after putting the new pipe on or could I wait a little while to do it?
Supporter
Joined: Nov 2009
Posts: 153
Likes: 0
From: Mountain View, CA
HP = TQ x rpm/5252; the lines should cross at 5252 rpm.
Road Master
Joined: Apr 2009
Posts: 915
Likes: 2
From: nw alabama
the tq scale is set to 100 ft lbs , and the hp scale is set at 90 hp... thats why they dont cross at 5250rpm...looks like they were trying to make the tune appear better...jmo
Cruiser
Joined: Jan 2014
Posts: 149
Likes: 0
From: Danville Il
I didnt see that before, so they do cross at 5250 but he spread out the 2.
IDK why he did that, maybe to see it better??
But in your opinion does it seem pretty typical for my set up? seems like i got a little bit more than most guys do, probably due to going with the pro pipe and not a 2into2.
Next year i may do some cams.
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Cruiser
Joined: Apr 2006
Posts: 175
Likes: 7
From: Las Vegas
Thanks for taking a look.
I didnt see that before, so they do cross at 5250 but he spread out the 2.
IDK why he did that, maybe to see it better??
But in your opinion does it seem pretty typical for my set up? seems like i got a little bit more than most guys do, probably due to going with the pro pipe and not a 2into2.
Next year i may do some cams.
I didnt see that before, so they do cross at 5250 but he spread out the 2.
IDK why he did that, maybe to see it better??
But in your opinion does it seem pretty typical for my set up? seems like i got a little bit more than most guys do, probably due to going with the pro pipe and not a 2into2.
Next year i may do some cams.
Last edited by Prw3; Apr 10, 2014 at 09:48 AM.
Cruiser
Joined: Jan 2014
Posts: 149
Likes: 0
From: Danville Il
So the comment on him setting the TQ to 100 and the HP to 90 is not relevant?