M8 Dyno Numbers
Road Warrior
Joined: Apr 2005
Posts: 1,739
Likes: 153
From: Fayetteville, NC
Very valid points by Dr.Buik and $tonecold. I, like others, do allot of research before selecting which parts/set up to buy and when I start looking at dyno sheets of certain set ups I will be the first to admit that the peak numbers as well as curve is what I see and start basing my decision on. My expectations then begin to set with what my results are going to be based off the research. Meaning, if I do not hit x amount of HP and TQ then my bike is not up to par with the ones I based my set up on. It then starts to get a bit more confusing and discouraging when I see a few people with the same parts/set up get varied numbers and at times it varies quite a bit. This becomes a struggle when you know you have the same set up as someone else but they got more out of their build then you did. Of course tuner, dyno etc all play a factor but my point is that this can take away from how the bike actually performs because if the performance exceeds your expectations and performs way better than before, then that is all that matters, at least in my opinion and experience...
He then begged to tune my bike because he could get me much more torque than I have. All he talked about was this 'peak' torque he could give me and he never mentioned anything about the curve, rideability, etc. I looked him dead in his face and said NO THANKS. The tech/tuner I used told me before he did any work that he takes a conservative approach and his dyno does not give these super inflated numbers. All he talked about was rideability and how I would be happy. All of that to say ------------I'm extremely happy with how this things pulls like a beast even if my numbers appear lower than others. So I'm with you............as long as the bike rides great and exceeds my expectations, all is well
Last edited by sfcmo357; Mar 12, 2019 at 09:27 AM.
Stellar HDF Member
Joined: Aug 2008
Posts: 2,107
Likes: 283
From: California, Md now Savannah, Ga
See post 9 of this thread although I see it is not a Harley torque cam but might give you an idea.
https://www.hdforums.com/forum/milwa...corded-it.html
https://www.hdforums.com/forum/milwa...corded-it.html
Last edited by Xcrossbow; Mar 14, 2019 at 12:47 PM.
Tourer
Joined: Jun 2017
Posts: 494
Likes: 220
From: Qld, Australia
2017 FLHR - Bassani 2-1-2 Header; SE 447 Torque Cam; SE Heavy Breather; 4 Rinehart Mufflers.
Base line is dealer Stage 2 dyno tune. Final tune is professional Dyno tune (Fred@ProCycleDyno), using the old SE Super Tuner Pro.
New tune is perfect for my riding style.
Base line is dealer Stage 2 dyno tune. Final tune is professional Dyno tune (Fred@ProCycleDyno), using the old SE Super Tuner Pro.
New tune is perfect for my riding style.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,676
Likes: 11,468
From: State of Confusion
Road Captain
Joined: Oct 2014
Posts: 573
Likes: 1,693
From: Oregon City OR
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Intermediate
Joined: Feb 2019
Posts: 26
Likes: 3
From: Los Angeles, CA
Nice so what cam you thinking when you do your 117?
My plan is to start with the S&S 475 as I currently have one. I am trying to coordinate with Steve so we can do cam testing almost fas soon or as soon as I get the bike together, so it may still be a while. I don't think we will test the RS468 that is in the bike now. I haven't been impressed with what I have seen of that cam in bigger motors with higher compression. I have hi-lift springs on the heads so we can test some higher lift cams. I'm positive we'll do the TTS200 & maybe 250. I also want to do the TTS150. I might try to get a WM8-408, it seems to be a popular cam, the new Andrews 550 looks interesting, maybe something from Cycle Rama. I know Steve might have a few he wants to do from other suppliers. It is really hard work to do this and each cam takes 3-4 hours, so that will also limit what we test. If we do three days like the last time we're looking at 7-8 cams. Since the ss475 will already be installed that will save us having to install the first cam, but if we have to break the motor in on the dyno it will take some time also. If I can get a tune to start with I will do a street break in to save that time.