124 s&s / 120r to 124

Is a Dyno needed once ya have small block Chevy Power in a Harley?? Crazy performance.


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pipe3214 said:

Is a Dyno needed once ya have small block Chevy Power in a Harley?? Crazy performance.


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Even Chevy's need a dyno, without one how would you know what to brag /cry about.

JacktheBagger said:

Dyno sheets cant be ridden , never put any faith in them , to me they serve no purpose other than to say 'look at what mine does' .

Just numbers , heads up for pink slips is the determining factor ..

Don't claim to be the expert that Scott or Frank are , but I been doing this since 1971 on the street and building hot rod Harleys since around 1975 or so , and 185 HP out of a 131 is 1.4 HP per cubic inch , that's a far stretch normally aspirated , it might be possible , but it definitely , IMO would not be a street ride or very reliable ..

Be hard pressed to get much over 1 HP per CI without some very serious work beyond what you have listed here ..

JtB

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+1

I don't care about you can't ride a dyno sheet but with those numbers I would want bragging rights. Show some dyno sheets or it didn't happen!!!

Mine is the 124HC built by S&S 17k on it so far. Only issue was the idler gear bearing was machined to big and started to make some noise at 6k. S&S warranted no issues now. Bike is a Solid Runner that I ride daily.... S&S says they are seeing 100k before the top ends need a minor overhaul. I am please and wish I would have went this route from day one. My bike has never been on a dyno but it is plenty fast...

The S&S .625 is a cam that'll not show that number in a 131.
Maybe a .785 Red Shift cams set at 15-17 cr, with a SMOKIN' set of heads, HUGE t/body or multi-carb, custom exhaust(maybe a Guppy) and extensive dyno work.........1/4 mile engine combo.
Our street 131's we've built, with 110" or S&S head castings, 662-2's for example, hover at/near 150 hp and torque about the same.............on multiple dyno's accross the country.
Scott

BlownBagger said:

He's also known in the industry as having a very happy dyno.Which I guess is a good thing if your an engine builder and he's tuning your build.

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Don't hide behind a vague sarcastic blurb.....you want to say something, I'm sure the mods here will be all ears as well........

Hillsidecycle.com said:

Don't hide behind a vague sarcastic blurb.....you want to say something, I'm sure the mods here will be all ears as well........

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No hiding here Scott just saying a "Happy Dyno" can be an engine builders best friend.

120se

Thoughts
I have a 12 roadglide with a 120 SE crate 29000 miles dyno 121t 120hp best all around ride for the buck... Love it

I don't have the sheets.. They weren't kept when dynoed.. Its Just numbers in my opinion. spinning through 4th gear just playing with the throttle gives me enough joy. I know the previous owner and builder along with everyone local, its a very well known build around here. I was just commenting on a s&s build since that was the topic lol and don't quote me on those details of the build. Just things I've over heard when it was done years ago. But I assure you those where the numbers when done. I have no reason to make things up

131stroker said:

I don't have the sheets.. They weren't kept when dynoed.. Its Just numbers in my opinion. spinning through 4th gear just playing with the throttle gives me enough joy. I know the previous owner and builder along with everyone local, its a very well known build around here. I was just commenting on a s&s build since that was the topic lol and don't quote me on those details of the build. Just things I've over heard when it was done years ago. But I assure you those where the numbers when done. I have no reason to make things up

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Cool story Bro................

131stroker said:

If it was a normal 131, it wouldnt make this power at all n/a... With the stroker crank it made 185whp/200lbtrq n/a millinium jugs. Can't recall the exact compression. 13 to 1 if I member correctly. S&s 625 cams. S&s crank and rods. Over sized valves. Heavy Port and polished heads. Oversized injectors. Hpi throttle body. Screaming eagle oil pump. Stage 3 race tuner. Thunder header exhaust. Much more, thats just what I remember off the top of my head. It was build nearly 3-4 years ago. Has near 15k miles on it now still running strong. No Dyno sheets. Billy at Snake ranch cycles built the motor

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Good luck with that... Someone is full of it.

While that 131" powerplant may very well have a lot "under the hood", and feel very powerful, which they do, unless it has a power-adder like nitrous, turbo, or super-charger on it, it is not making 200 hp in a street-driven, pump gas friendly, naturally-aspirated set-up.
I've built these engines day in/day out, 6-7 days a week now for 30 plus years now, I know.
Scott

BlownBagger said:

He's also known in the industry as having a very happy dyno.Which I guess is a good thing if your an engine builder and he's tuning your build.

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I've heard that a lot but I had my dyno'd at Pocono Harley and I was not happy with it. I took it to Joe's I stood there as they put it on dyno and ran it. It actually dyno'd 1 hp and 1tq lower then what it did at the Harley place.

Then Joe tuned it and picked up little more than 10/10 needless to say it was a different bike than before I took it there

Both sae so if his dyno is happy I don't know what to say But I think its the customers that go there that are happy . Have had several bikes there always ran great cool and smooth

With all of these dyno and HP numbers being thrown around. I'm just wondering how fast have u had your bikes up to?? I've had mine up to 130mph a few times, and trust me, that is fast enough for me on a motorized sofa....I'm just sayn'

131stroker said:

I don't have the sheets.. They weren't kept when dynoed.. Its Just numbers in my opinion. spinning through 4th gear just playing with the throttle gives me enough joy. I know the previous owner and builder along with everyone local, its a very well known build around here. I was just commenting on a s&s build since that was the topic lol and don't quote me on those details of the build. Just things I've over heard when it was done years ago. But I assure you those where the numbers when done. I have no reason to make things up

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Yeah if you think you are actually at 185/200 without, nitrous, turbo, supercharger ect, I am willing to bet you arent even close.. but you are right only numbers as long as you are happy on how it runs then you are golden..

Glide08 said:

I've heard that a lot but I had my dyno'd at Pocono Harley and I was not happy with it. I took it to Joe's I stood there as they put it on dyno and ran it. It actually dyno'd 1 hp and 1tq lower then what it did at the Harley place.

Then Joe tuned it and picked up little more than 10/10 needless to say it was a different bike than before I took it there

Both sae so if his dyno is happy I don't know what to say But I think its the customers that go there that are happy . Have had several bikes there always ran great cool and smooth

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A Long Island-based tuning center, that comes up to Joe's for training on occasion has witnessed the same/same on multiple occasions where he has brought bikes up to train on, or problematic bikes he was having a tough time with that he has hand-carried to Joe's.
The PA outfit..........well, I'll just leave that alone.
Scott

The only "happy" thing about Joe's dyno is his customers. Joe's came highly recommended by Big Pete's Performance here in central NY as well as by Scott @ Hillside. Joe wasn't cheap, but squeezed that tune for me and got the results out of my 95" motor. I think Joe even was surprised with the results because he mentioned the numbers to Scott on the phone, and Scott had nothing to do with my motor. You want "happy"? Go to Joe's and get every nickel worth out of your tune. There is a reason why many people bring their bikes from hundreds of miles away to get tuned there, and it's NOT because they want to walk away with a brag sheet. Heck, I don't even remember my exact numbers anymore, because they are just numbers. I remember the RESULTS!

Hillsidecycle.com said:

A Long Island-based tuning center, that comes up to Joe's for training on occasion has witnessed the same/same on multiple occasions where he has brought bikes up to train on, or problematic bikes he was having a tough time with that he has hand-carried to Joe's.
The PA outfit..........well, I'll just leave that alone.
Scott

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Why the "vague sarcastic blurb" towards fellow competitors?