Cam change report
Road Warrior
Joined: Nov 2008
Posts: 1,636
Likes: 7
From: Jackson, Michigan
Dogg - PM sent
Here is a photo of the dyno run I had on Sat. To say the least I am very dissapointed. The bike feels like it runs alot better than before the cam swap, but the results are only +6hp and +5tq over what harley states as stock. I should have had better #'s than this just by adding the PC-V. I am also suprised at how "rough" the tq curve is. I was really bummed when a buddies 09 softail with V&H shortshots (no baffles), SE heavy breather, and a Thundermax pulled 75hp and 90tq right after my run. His graph is so smooth and flat. He pulled 90 ft lbs from 3000-4500.
Road Master
Joined: Mar 2008
Posts: 1,209
Likes: 5
From: Michigan
The print out didnt give AFR's as the sniffer was not registering any data.
It was not a dyno tune, just a one time rip. Our dealer was giving free dyno runs at an open house.
Temp 70.19, humidity 30%, SAE 1.01, 4th gear RO
I bought the PC-V from fuel moto, and the map installed is from Jamie, and is supposed to be for my current set up.
I definatley need to talk to Fuel Moto tommorrow and get this running better. It stumbles off the line and you can feel the stumble at 2500, pulls good above 3500 but that is not where I want to spend alot of time.
I was really hoping for a nice wide smooth increase in torque. I will be happy with 80 hp 95 tq.
From everything I have read about fuel moto, they should be able to get me set up right. If not I have to decide if I want to spend the money on the autotune or get a full dyno tune locally.
It was not a dyno tune, just a one time rip. Our dealer was giving free dyno runs at an open house.
Temp 70.19, humidity 30%, SAE 1.01, 4th gear RO
I bought the PC-V from fuel moto, and the map installed is from Jamie, and is supposed to be for my current set up.
I definatley need to talk to Fuel Moto tommorrow and get this running better. It stumbles off the line and you can feel the stumble at 2500, pulls good above 3500 but that is not where I want to spend alot of time.
I was really hoping for a nice wide smooth increase in torque. I will be happy with 80 hp 95 tq.
From everything I have read about fuel moto, they should be able to get me set up right. If not I have to decide if I want to spend the money on the autotune or get a full dyno tune locally.
Elite HDF Member
Joined: Apr 2009
Posts: 3,542
Likes: 161
From: Booming metropolis
Here is a photo of the dyno run I had on Sat. To say the least I am very dissapointed. The bike feels like it runs alot better than before the cam swap, but the results are only +6hp and +5tq over what harley states as stock. I should have had better #'s than this just by adding the PC-V. I am also suprised at how "rough" the tq curve is. I was really bummed when a buddies 09 softail with V&H shortshots (no baffles), SE heavy breather, and a Thundermax pulled 75hp and 90tq right after my run. His graph is so smooth and flat. He pulled 90 ft lbs from 3000-4500.
Something must be wrong with your set up. My bike has about the say numbers as your buddies and only have the PCV, Stg 1 AC with FatCat. I rated 78.9 Hp and 90.8 TQ.
How much bump if any would I obtain from a 255 cam?
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Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
Like I mentioned earlier, my buttometer says 4-5HP and 6TQ. It is tested accurate to ą1HP and 1TQ 
. The curve feels about the same in slope, i.e. nice and flat like a rolling hill, only it has moved up. My guess is no loss from idle-2300 and maybe a tad better, stronger from 2300 on up, with the best gains at 2500-4500 RPM. Power levels off at 5K and starts to drop off slowly at 5500 up to the redline. Again, it is not a peak-HP cam set and shouldn't be chosen for that. My bike is an otherwise stock TC96 with Fuel Moto Power Package (PCV-AT, AC, DT JP's).
I've seen several TC96/255 dyno charts (two posted in an earlier reply) and the top two were about 84HP and 100TQ, one with RHTD's, with the TQ peak at around 3600. Another one charted 80HP/95TQ with Bub TD's, but that's on the low side. One can't speculate on the state of tune of any of these, although I think the top two are about as good as you'll get with a stock engine.
. The curve feels about the same in slope, i.e. nice and flat like a rolling hill, only it has moved up. My guess is no loss from idle-2300 and maybe a tad better, stronger from 2300 on up, with the best gains at 2500-4500 RPM. Power levels off at 5K and starts to drop off slowly at 5500 up to the redline. Again, it is not a peak-HP cam set and shouldn't be chosen for that. My bike is an otherwise stock TC96 with Fuel Moto Power Package (PCV-AT, AC, DT JP's).I've seen several TC96/255 dyno charts (two posted in an earlier reply) and the top two were about 84HP and 100TQ, one with RHTD's, with the TQ peak at around 3600. Another one charted 80HP/95TQ with Bub TD's, but that's on the low side. One can't speculate on the state of tune of any of these, although I think the top two are about as good as you'll get with a stock engine.
Last edited by iclick; Jun 1, 2009 at 11:26 AM.
Road Master
Joined: Mar 2008
Posts: 1,209
Likes: 5
From: Michigan
An update on my cam install. I sent Jamie a copy of my dyno sheet and spoke with him on Wed. As we all know, they were moving on Thurs so he asked if he could get me straight next week. Not a problem. He said he could get rid of my low end stumble and help out the MPG (37mpg). I attribute my poor numbers and rough graph to the fact that if I jumped on the throttle, the clutch would break loose and the RPMs would jump way up but the bike would not gain speed. Proof to me that the 255's were making some real good TQ. Makes sense now. My butt dyno told me that the cam upgrade made a nice increase in TQ when I rolled on the throttle. The dyno run was at WOT and if it broke the clutch loose then it surely would not registar good numbers or a smooth graph. So, today I installed the SE high performance clutch diaphram that comes with the SE 103 stage 2 kit. No more slipping at WOT. Now it pulls nice and steady all the way up. The bike should be near perfect once Jamie gets the low end stumble taken care of.
Road Master
Joined: Apr 2009
Posts: 973
Likes: 1
Here is a photo of the dyno run I had on Sat. To say the least I am very dissapointed. The bike feels like it runs alot better than before the cam swap, but the results are only +6hp and +5tq over what harley states as stock. I should have had better #'s than this just by adding the PC-V. I am also suprised at how "rough" the tq curve is. I was really bummed when a buddies 09 softail with V&H shortshots (no baffles), SE heavy breather, and a Thundermax pulled 75hp and 90tq right after my run. His graph is so smooth and flat. He pulled 90 ft lbs from 3000-4500.
Something is amiss with that jumpy curve, clutch or timing maybe.
Road Master
Joined: Apr 2009
Posts: 973
Likes: 1
An update on my cam install. I sent Jamie a copy of my dyno sheet and spoke with him on Wed. As we all know, they were moving on Thurs so he asked if he could get me straight next week. Not a problem. He said he could get rid of my low end stumble and help out the MPG (37mpg). I attribute my poor numbers and rough graph to the fact that if I jumped on the throttle, the clutch would break loose and the RPMs would jump way up but the bike would not gain speed. Proof to me that the 255's were making some real good TQ. Makes sense now. My butt dyno told me that the cam upgrade made a nice increase in TQ when I rolled on the throttle. The dyno run was at WOT and if it broke the clutch loose then it surely would not registar good numbers or a smooth graph. So, today I installed the SE high performance clutch diaphram that comes with the SE 103 stage 2 kit. No more slipping at WOT. Now it pulls nice and steady all the way up. The bike should be near perfect once Jamie gets the low end stumble taken care of.
Glad it's headed in the right direction.
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Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
An update on my cam install. I sent Jamie a copy of my dyno sheet and spoke with him on Wed. As we all know, they were moving on Thurs so he asked if he could get me straight next week. Not a problem. He said he could get rid of my low end stumble and help out the MPG (37mpg). I attribute my poor numbers and rough graph to the fact that if I jumped on the throttle, the clutch would break loose and the RPMs would jump way up but the bike would not gain speed. Proof to me that the 255's were making some real good TQ. Makes sense now. My butt dyno told me that the cam upgrade made a nice increase in TQ when I rolled on the throttle. The dyno run was at WOT and if it broke the clutch loose then it surely would not registar good numbers or a smooth graph. So, today I installed the SE high performance clutch diaphram that comes with the SE 103 stage 2 kit. No more slipping at WOT. Now it pulls nice and steady all the way up. The bike should be near perfect once Jamie gets the low end stumble taken care of.
Road Master
Joined: Mar 2008
Posts: 1,209
Likes: 5
From: Michigan
The diaphram was easy to install.
Drain fluid, remove heel shifter, remove floor board, remove outer primary cover, then remove the 6 bolts that hold the diaphram and swap out the stock for the SE. Reassemble everything and add fluid. I was able to reuse my primary cover gasket, saved me $35. I also switched back to HD Formula 1 fluid in the primary. Between the two, no more slippage. I could tell as soon as I opened up the derby cover I had toasted the fluid. Man did it stink.
The clutch lever is harder to pull in now, thats for sure. Feels as stiff as my wifes sporty if that helps at all.
Drain fluid, remove heel shifter, remove floor board, remove outer primary cover, then remove the 6 bolts that hold the diaphram and swap out the stock for the SE. Reassemble everything and add fluid. I was able to reuse my primary cover gasket, saved me $35. I also switched back to HD Formula 1 fluid in the primary. Between the two, no more slippage. I could tell as soon as I opened up the derby cover I had toasted the fluid. Man did it stink.
The clutch lever is harder to pull in now, thats for sure. Feels as stiff as my wifes sporty if that helps at all.