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Discussion Starter #1 (Edited)
I now know the truth on my 120ST.... not that impressive if you ask me. Being in Reno, I know my numbers would/could be much better out near the coast... Im at 4500ft.

So.. here is what I have

Power Vision
Target Tune wideband O2 module
1074X Thunder Header
Chisel Extreme AC

Conditions:

83 degrees.... 25.56 in-Hg.... 17% Humidity and STD 1.19

Ready?

105.11 HP and 114.59 TQ



I knew I should NOT have done it.... oh well... it was done by Dyno Jet on their mobile dyno.... so it was not a DETAILED dyno for $190..... AFR's were all over the map and they smoothed them out nicely....runs better, so I have that now... LOL
 

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I would have expected a lot more too. My 11 RGU 103 with 590 cams and mild head work hit 100hp-110tq.

Are you running true duals? I'm going to assume so. 2-1 will net more.
 

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Wow! That's not real impressive, that's the #'s that a 103 stage 2 is producing. I am sure it put a :frown: on your face.
 
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Discussion Starter #4
I would have expected a lot more too. My 11 RGU 103 with 590 cams and mild head work hit 100hp-110tq.

Are you running true duals? I'm going to assume so. 2-1 will net more.

Nope... listed my 2-1 1074X Thunder Header in the post with all the rest... tuner, module and AC
 

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Discussion Starter #5
Wow! That's not real impressive, that's the #'s that a 103 stage 2 is producing. I am sure it put a :frown: on your face.
No shit Mark.... when he told me... I laughed and said... no.... really... whats my numbers? his response didn't change....I needed another beer at that point... LOL!!!
 

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No shit Mark.... when he told me... I laughed and said... no.... really... whats my numbers? his response didn't change....I needed another beer at that point... LOL!!!
I bet you had more then 1 beer, don't drink too much you need the money for a new dyno tune. :wink:
 

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Discussion Starter #7
I bet you had more then 1 beer, don't drink too much you need the money for a new dyno tune. :wink:
Oh yeah... Street Vibrations fall rally in full swing... I had many more beers after that... LOL!

Thinkin I may go with the 124kit with headwork down the road... who knows.... FM boasts 141 HP and 146 TQ
 

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Nope... listed my 2-1 1074X Thunder Header in the post with all the rest... tuner, module and AC
Ya. I tried editing my post but it's taken an hour to log on. Someone through out the anchor on my data plan. It's soooooo slow today. May just be RG.org.
 

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LOOKS LIKE YOU ARE IN THE BALL PARK FROM HARLEY

Harley-Davidson Press Release:

Take a Harley-Davidson® Touring bike to the wild side of performance with the new Screamin’ Eagle® SE120ST Crate Motor from Harley-Davidson® Genuine Motor Parts and Accessories. Offering the ultimate in factory-engineered street performance, this 120-cubic-inch engine is designed for bolt-in installation in an Original Equipment-style Harley-Davidson Touring chassis with no required fabrication or engine mount relocation.

Equipped with a Screamin’ Eagle 58mm Throttle Body that’s 18 percent larger than stock, this engine is capable of producing 106 horsepower and 117 lb-ft of torque at the rear wheel. The crankcase, cylinders and heads are painted black and feature machined aluminum highlights and chrome covers.

Features:

• 4.060 big-bore cylinders

• 4 5/8-inch stroke SE Pro stroker flywheel and rod assembly

• 10.5:1 high-compression nickel-plated forged pistons with Teflon® coated skirt

• Titanium SST piston rings

• SE-259E high-lift cams

• Perfect Fit push rods

• SE high-performance lifters

• CNC-ported MVA heads with automatic compression release

• SE Pro High-Flow 58mm EFI Throttle Body, high flow injectors and manifold clamps

• Machined lower rocker boxes for valve spring collar clearance

• Factory-machined engine cases

• Unique piston oilers for stroker clearance

• SE inner crankcase full complement cam needle bearings

• SE Lefty high-performance crankcase output bearing and nitride bearing race

• SE Performance spark plugs

• 120ST cam cover and cylinder head medallions

Fitment for the Screamin’ Eagle SE120ST Performance Crate Engine is:

- 49-state 2015-later Touring models. Does not fit Twin-Cooled™ models.

- Certification is pending for California 2015-later Touring models.

- Certification is also pending for all 50 states 2010 – 2014 Touring models.

Engine includes a one-year warranty. See an authorized Harley-Davidson dealer for details. Labor costs not included.

MSRP: $5,695.00
 

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Spazz,

Take a ride to Hayward CA and have Bob @ RC Cycles tune your bike. He is amazing and should be able to tune that bike right. I ride all the way up from S. Cal to have him tune my bikes. I don't trust anyone else.

I have a 103 with Drago's 580 cam and Drago II 2-1 pipe getting 105/115. based on your #'s I don;t think I would go 120. Lol

You're close enough you could ride over in the morning, Dyno mid day and be home for a late dinner.

Bill
 

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Spazz, something definitely not right. I have same pipe as you & on my 107" with woods TW5-6 cam I'm at 116.9 HP & 136.1 TQ. You should be glad you found out now that your not getting your potential out of that 120, that thing has a lot more to offer
 

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Discussion Starter #12
Thanks for all the positive feedback... and NOT slamming me...lol! I knew you all wouldn't be that way.... great forum. right now... we are headed into the winter months here shortly.... not gonna do much right now. Remember.... this is the SAME ENGINE I just had the complete top end done after burning 1.5 qts every 1000 miles ( jugs on up ). I have 5K on the clock since all the work. Oil is good ( on 2nd change since)

I may wait a bit ( after winter ) to tackle this..... thanks again... and will be looking into dynos for sure....
 

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Dyno's can certainly be frustrating. But I'm with nordic, you've got more to get...something to look forward to!
 

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Those numbers are a lot better than you think. When you are running near sea level those numbers will be more like 116/125 at least. No need for another dyno, it's tuned well by the smoothness of the chart. Congrats


Sent from my iPhone using Tapatalk
 

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Maybe you're looking at this wrong Spazz. It's a stage 1 120ST, right? Can't really compare it to a S&S, FM 107 build, dragos, etc etc. Put cams in it and you've got a 120R and a good jump in numbers, right? What's a stage 1 103 generally? Low to mid 80s? 105hp is not a bad deal I think for a basically stock motor with, I'm guessing, a limp cam. Besides, isn't it feel good before the Dyno? Betting it did. And I'm guessing it's fairly reliable.

Skip that last sentence. I forgot about the oil guzzling problem from earlier in it's life.
 

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Discussion Starter #16
Those numbers are a lot better than you think. When you are running near sea level those numbers will be more like 116/125 at least. No need for another dyno, it's tuned well by the smoothness of the chart. Congrats


Sent from my iPhone using Tapatalk
See... I knew you guys would lift my spirits a bit.... thanks... good point






Maybe you're looking at this wrong Spazz. It's a stage 1 120ST, right? Can't really compare it to a S&S, FM 107 build, dragos, etc etc. Put cams in it and you've got a 120R and a good jump in numbers, right? What's a stage 1 103 generally? Low to mid 80s? 105hp is not a bad deal I think for a basically stock motor with, I'm guessing, a limp cam. Besides, isn't it feel good before the Dyno? Betting it did. And I'm guessing it's fairly reliable.

Skip that last sentence. I forgot about the oil guzzling problem from earlier in it's life.
I like the way you think.. .LOL!!! but very true.... its an EPA build.... duh!
 

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Is therea difference between the se120st and the 120st
 

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Discussion Starter #18
Thinkin you meant 120ST and 120R. . Yes... cams are the biggest thing.. then the cam plate, pushrods and oil pump
 

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I have a 12 RGC w/ Andrews 57H Cams, V&H Naked AC, and a FULSAC header w/ Rinehart 4in Cans. = 99HP / 116 TQ.
 

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Maybe you're looking at this wrong Spazz. It's a stage 1 120ST, right? Can't really compare it to a S&S, FM 107 build, dragos, etc etc. Put cams in it and you've got a 120R and a good jump in numbers, right? What's a stage 1 103 generally? Low to mid 80s? 105hp is not a bad deal I think for a basically stock motor with, I'm guessing, a limp cam. Besides, isn't it feel good before the Dyno? Betting it did. And I'm guessing it's fairly reliable.

Skip that last sentence. I forgot about the oil guzzling problem from earlier in it's life.
Bingfuckingo !!!!!!
 
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