Safe/Reliable 120R Upgrades Proof/Opinions
#1
09-09-2016, 07:59 AM
Safe/Reliable 120R Upgrades Proof/Opinions
I have about 10K on my 2013 model 120r and would like to do an upgrade this winter. I still tour with this bike so I can't be too radical of an upgrade. I've read a simple compression bump and cam change will give me a nice increase and some say the 124 is a good upgrade as well. Again, I need to keep reliability. I currently run a stock HD120R, 58SETB, 5.3 injectors, tuned with a SE Super Tuner. Any proof and opinions would be much appreciated.
#2
09-10-2016, 10:07 AM
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Following is a list of things done to the 120R in my 2014 SGS. Engine is rock solid since it was built.
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
ETA 13) SE +1.5 quart oil pan
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
ETA 13) SE +1.5 quart oil pan
Last edited by Sierra977; 09-17-2016 at 09:39 AM.
#3
09-10-2016, 11:52 AM
Following is a list of things done to the 120R in my 2014 SGS. Engine is rock solid since it was built.
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
#4
09-10-2016, 01:57 PM
Following is a list of things done to the 120R in my 2014 SGS. Engine is rock solid since it was built.
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
1) SE roller rockers
2) Wood lifters
3) Offset rocker support plate
4) Cometic .030" head gaskets
5) Exchanged SE triple valve springs for dual springs
6) High output starter
7) SE variable clutch
8) Rerouted oil blow-by tubes to external catch can
9) JAGG 10-row fan-assisted oil cooler
10) V&H High-Output ProPipe
11) Same air and fuel intake as yours
12) Dyno tuned of course
#5
09-10-2016, 02:49 PM
Road Warrior
The 120R is a reliable motor however 2 improvements should be considered immediately...
TWO of the known weak links were as follows..
Dual Valve Springs are to heavy...consider the AV&V 6500 beehive springs....
The SE lifters have been know to grenade so a quality set of lifters should be added...
paul
TWO of the known weak links were as follows..
Dual Valve Springs are to heavy...consider the AV&V 6500 beehive springs....
The SE lifters have been know to grenade so a quality set of lifters should be added...
paul
#6
09-10-2016, 04:37 PM
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#7
09-10-2016, 04:38 PM
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ETA Dyno'ed at 1,000 miles. Engine was just starting to loosen up. Need to do it again. Want to get 150tq out of engine.
Last edited by Sierra977; 09-10-2016 at 05:06 PM.
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#8
09-10-2016, 04:40 PM
Ultimate HDF Member
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The 120R is a reliable motor however 2 improvements should be considered immediately...
TWO of the known weak links were as follows..
Dual Valve Springs are to heavy...consider the AV&V 6500 beehive springs....
The SE lifters have been know to grenade so a quality set of lifters should be added...
paul
TWO of the known weak links were as follows..
Dual Valve Springs are to heavy...consider the AV&V 6500 beehive springs....
The SE lifters have been know to grenade so a quality set of lifters should be added...
paul
From the factory, 120R valve springs will work on a blown top fuel engine. Do not need that much seat pressure on a street engine.
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BuckCanHD (09-11-2016)
#9
09-11-2016, 11:17 AM
#10
09-12-2016, 06:05 AM
Sponsor
Wood 9B cams....HUGE torque increase even at the advertised 10.5 cr.
S&S lifters.
T/header will pinch the peak hp, but will push the low-mid up in that size engine.
Scott
S&S lifters.
T/header will pinch the peak hp, but will push the low-mid up in that size engine.
Scott
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Sales/Support 315-495-6650
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HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
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