2011 High torque Starter help
2011 High torque Starter help
Good day , My 2011 TC was built up to 124 and now i have issues on occasions try to start it. it seems struggles due to the higher compression . I have factory auto compression release activated since it's stock on my 2011 103 motor. I know stock Starter is 1.4 KW but was looking for 1.7KW but seems it does not exist after 2006 Model year HD... any suggestions of a strong starter vs OEM ? Does the BIG ***** 1.4KW make a big difference from stock OEM ? I'm running 9F Cams and compression approx 11.4. 132HP @ 163 TQ
Road Master
Joined: Jun 2012
Posts: 1,062
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From: Boise, Idaho
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,146
Likes: 11,220
From: San Diego, CA
FWIW...
I have a 2016 with S&S 124 crate engine at 10.6:1 compression. It doesn't have the OEM heads w/compression releases, but uses S&S easy start cams. The factory starter spins it over well, cold or hot, as long as the battery is good..
I use a Yuasa GYZ32HL battery with 500CCA.
Before changing starters, maybe first check your battery status and/or get a good, high CCA battery. Check your battery & starter terminals and grounds are tight and clean. Also check that the battery/starter cables are in good condition... corrosion in/on the cables will restrict current flow...
Good luck and enjoy that 124"....!
I have a 2016 with S&S 124 crate engine at 10.6:1 compression. It doesn't have the OEM heads w/compression releases, but uses S&S easy start cams. The factory starter spins it over well, cold or hot, as long as the battery is good..
I use a Yuasa GYZ32HL battery with 500CCA.
Before changing starters, maybe first check your battery status and/or get a good, high CCA battery. Check your battery & starter terminals and grounds are tight and clean. Also check that the battery/starter cables are in good condition... corrosion in/on the cables will restrict current flow...
Good luck and enjoy that 124"....!
Road Master
Joined: May 2012
Posts: 773
Likes: 124
From: Between purgatory and retirement
It is more common than it should be for a tuner to turn off the ACRs while dyno tuning and forget to turn them back on.
I would start there.
.
Grand HDF Member
Joined: Jan 2012
Posts: 4,458
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From: Oklahoma
I will plead ignorance on this, always believed ACRs were totally deactivated once the engine was running. Why would a tuner disable them disable them for a dyno tune? Even so, ACRs not working was my first reaction. How can functionality be confirmed by a shade tree owner?
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,146
Likes: 11,220
From: San Diego, CA
I will plead ignorance on this, always believed ACRs were totally deactivated once the engine was running. Why would a tuner disable them disable them for a dyno tune? Even so, ACRs not working was my first reaction. How can functionality be confirmed by a shade tree owner?
The compression release status can be checked, enabled, or disabled by a tuner (like a PowerVision) or one of the aftermarket devices like Twin Scan IV, or Centurion by TechnoResearch... If you have a relationship with your dealership, their Digital Tech can do all that too....
But first you may want to double check that they are plugged in properly and/or the connections are clean and in good shape...
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From: bklyn,ny
Last edited by bklynbob; Apr 21, 2022 at 09:29 PM.
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Outstanding HDF Member
Joined: Dec 2008
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From: Ohio
You can test to see if the CR's are working. Remove the sparkplugs and see if that improves starter performance. If so
you need to turn them on via a tuner. Or check the wiring to them. If not you probably have a weak battery or poor connection somewhere.
you need to turn them on via a tuner. Or check the wiring to them. If not you probably have a weak battery or poor connection somewhere.
Stellar HDF Member
Joined: Apr 2016
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From: Masshole
I always thought that the acr's were only active when the fuel pump was priming. Their primary function was to relieve any "left-over" compression. This was told to me by a local shop. Can't really find much online about their cycle/operation.