Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Grover]

My Horsepower Inc. TB is already here. 53mm. I'll pm him about this subject later. I gotta go now... CYA

Thanks Otis,

Grover [smiley=smoking.gif]


p.s. Tell brother Hubbard not to kick Ole Maudie in N.A.D.S. he just might hurt himself!! [smiley=huepfenlol2.gif] And also, I take it he hasn't seen my post in the 1K comments section. I thought it would get him going [smiley=huepfenlol2.gif]. He WILL get some N.A.D.S. now, just so he doesn't have to look at my plate in Maggie Valley this fall... [smiley=huepfenlol2.gif]

[SHRADER]

BLM you are exactly right.

                        

[Grover]

I'm sure Harley's #'s are off an engine dynometer for the higher crank readings.

[jimp]

Yeah, 'er 'uh, jimp,
 

[SHRADER]

I'm sure Harley's #'s are off an engine dynometer for the higher crank readings.

Depends on what numbers you are talking about. If you are referring to those in the SE catalog referencing SE parts they are supposed to be Rear Wheel. But just like anything else they are free to fudge because of the old "actual mileage may vary" kinda routine. Don't forget that about the only production bike that they brag about the HP on is a V-Rod, alledged to produce 115hp at the rear wheel. Now I ask you how many stock V-Rods have you seen pull 115. In my own experience a stock V-Rod is lucky to bust 105hp. In fact in the last two VA State Rallys several have been run on the same dyno as my bike and I think only one busted the 100 mark (104) and it had a Stage I kit and a 2 into one exhaust.

I guess in a nutshell whenever I look a Harleys SE numbers I automatically take of 5-10 hp just because experience tells me to do so.


REGARDS
SHRADER

[John S]

There are a whole lot of ways to "cheat" the dyno but let's "assume" everyone is going to play by the rules...

To get 120HP out of a 103 means you have to be at a 1.165HP/cubic inch ratio.

[BLM777]

Great point John.  Often, it's a lot more cost effective to increase the CI's to get where you're going on HP than to stretch a smaller motor with lots and lots of bucks.  Sure don't want to "assume" that all the dyno runs are playing fair though.  Too many years of watching engine builders and parts suppliers inflate the numbers to match the invoice.

[DCFIREMANN]

Depends on what numbers you are talking about. If you are referring to those in the SE catalog referencing SE parts they are supposed to be Rear Wheel. But just like anything else they are free to fudge because of the old "actual mileage may vary" kinda routine. Don't forget that about the only production bike that they brag about the HP on is a V-Rod, alledged to produce 115hp at the rear wheel. Now I ask you how many stock V-Rods have you seen pull 115. In my own experience a stock V-Rod is lucky to bust 105hp. In fact in the last two VA State Rallys several have been run on the same dyno as my bike and I think only one busted the 100 mark (104) and it had a Stage I kit and a 2 into one exhaust.


Shrader my new 05 SE VROD spun 117 hp at the local HD shop. They took delivery of 3 VROD Destroyers and were playing with them. The one they were playing with spun 147 out of the box. That was on a dynojet 150.The Dyno that doesn't lie is the Land /Sea dyno. I have worked with a tuner over at Zippers with the one they own and there is a difference between that and the Dynojet dynos numbers. The land /sea is always lower and it is hard to fudge the numbers.

Be Safe

THE DAWG

[SHRADER]

Dawg

Good numbers for your SE V-Rod. Guess I should have been more specific as I was referring to the 1130cc non-SE V-Rods not the 1250cc SE V-Rod.

Regards
SHRADER

[SCRM-R]

I believe that you CAN build a reliable 120 hp, 103 motor.  I had my mods done one year and over 10,000 miles ago...it runs strong, smooth, and is very reliable with absolutely no problems to date...and I run the hell out of it.  I've ridden it around town, around the state, and to the mountains and back...and I wouldn't change one thing about it.  It's not exactly 120 hp, but it is dang sure knocking on the door if it, and about as close as you can get without being there...it may even be there now...the chart below was made at the 500 mile break in.  Green run = baseline after the build with Rineharts and standard baffles...Red = immediately after changing to the larger performance baffles, and Blue = final run after dyno tuning.  This motor started life as a stock 103 motor in a SERK...the numbers prior to the engine mods were 89.5 hp and 94 tq.  They are all bolt-on Screamin' Eagle parts...details of what's in it are listed in my Homepage.  Would I do this exact build again?  Hell yes.

[BLM777]

Very strong numbers, Tally.  Did you do the build yourself?

[SCRM-R]

Very strong numbers, Tally.

[BLM777]

No, but I did the research and decided what I wanted in it.

[SCRM-R]

Next time you're coming South, PM me.

[bbsiding]

through with it?   we are never though til the title to the new one shows up!!!!