Yet another Cam question
Tourer
Joined: Jan 2006
Posts: 373
Likes: 26
From: Virginia
What are the 2 RPM lines near where your graph crosses 80 ft-lbs of TQ?
Thread Starter
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Tourer
Joined: Jun 2005
Posts: 498
Likes: 1
From: Rhode Island
2 RPM Lines
I think what you are asking me is where does the torque lines cross at first going above 80 Torque and where does it cross going back down.
Note: if I'm reading this right since it shows two runs: Red lines are the
stock cams with the 95" kit from may 11.
Blue lines show the Andrews 21 with the 95" kit when dyno'd on 6/29.
So if I understand your question...
The first RPM at 80 torque is 2.75 RPM x 1000 the second where it crosses back down at 80 is at 4.60 RPM x 1000
Hey, I just realized what you were asking and now I understand why the bike feels like it has so much more power ;-)
Prior to the new cams the cross lines for 80 Torque were 3.20 and 4.30
My sweet spot is significantly larger where I ride, between 2500 and 3500 RPMS which is EXACTLY where I told the tuner that I rode.
Joe
Joe
Note: if I'm reading this right since it shows two runs: Red lines are the
stock cams with the 95" kit from may 11.
Blue lines show the Andrews 21 with the 95" kit when dyno'd on 6/29.
So if I understand your question...
The first RPM at 80 torque is 2.75 RPM x 1000 the second where it crosses back down at 80 is at 4.60 RPM x 1000
Hey, I just realized what you were asking and now I understand why the bike feels like it has so much more power ;-)
Prior to the new cams the cross lines for 80 Torque were 3.20 and 4.30
My sweet spot is significantly larger where I ride, between 2500 and 3500 RPMS which is EXACTLY where I told the tuner that I rode.
Joe
Joe
Thread Starter
|
Tourer
Joined: Jun 2005
Posts: 498
Likes: 1
From: Rhode Island
Andrews 21, 37 etc...
Since I know so little about this, but I am trying to learn...
I called Andrews and got to speak with an engineer. They were great by the way. I told them my riding style, mostly 2 up, 05 Ultra with 95" kit only and had stock cams. I was looking for torque to come on early. It was the
Andrews folks that told me to go with the 21.
Since I put in adjustable push rods, I now have the option to switch a bit more easily. Although I can't imaging changing anything any time soon.
Joe
I called Andrews and got to speak with an engineer. They were great by the way. I told them my riding style, mostly 2 up, 05 Ultra with 95" kit only and had stock cams. I was looking for torque to come on early. It was the
Andrews folks that told me to go with the 21.
Since I put in adjustable push rods, I now have the option to switch a bit more easily. Although I can't imaging changing anything any time soon.
Joe
Tourer
Joined: Jan 2006
Posts: 373
Likes: 26
From: Virginia
Hey, I just realized what you were asking and now I understand why the bike feels like it has so much more power ;-)
Prior to the new cams the cross lines for 80 Torque were 3.20 and 4.30
My sweet spot is significantly larger where I ride, between 2500 and 3500 RPMS which is EXACTLY where I told the tuner that I rode.
Joe
Joe
Prior to the new cams the cross lines for 80 Torque were 3.20 and 4.30
My sweet spot is significantly larger where I ride, between 2500 and 3500 RPMS which is EXACTLY where I told the tuner that I rode.
Joe
Joe
Club Member
Joined: Feb 2007
Posts: 5,335
Likes: 0
From: Tidewater
My old 05 Road King had a 95 inch kit, SE flat top pistons, mild head work (ported) and a SE 204 cam. It was a strong puller from 1500 to 5000 rpm, just where I needed it. I loved the 204s and would recommend them without question in a 95 build looking for low end grunt.
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The Woods 6 is a grind. The -6 suffix indicates it's for the 06+ dyna and 07+ touring bikes.
My old 05 Road King had a 95 inch kit, SE flat top pistons, mild head work (ported) and a SE 204 cam. It was a strong puller from 1500 to 5000 rpm, just where I needed it. I loved the 204s and would recommend them without question in a 95 build looking for low end grunt.
I put them in my 103 along with 1.725 rockers to bring the effective lift to .539. Doing that also adds a couple of degrees duration and speeds up the ramps. If I raise my compression a bit, I can add a -4* gear, and with the high ratio rockers, they become much like the Andrews 54.
The 204 cams have one of the best grinds in the SE catalogue.