103 Dyno : V-Twin Forum: Harley Davidson Forums

'05Train · 10-22-2009, 08:25 PM

103 and a 6-speed added by Dave at JD's Cycleworks in Bethlehem, PA. Dave's about as good as it gets, and he's not a "happy dyno" guy. The attached chart is SAE...116/116 out of a freakin' 103.

OK, here's the menu:
-TMan stage 2 heads w/compression releases
-Tman 625 gear-drive cams
-10.5:1 compression
-S&S crank
-Baisley roller rockers
-Feuling Super Pump w/Baisley spring
-Timken conversion
-HPI 55mm throttle body
-5.3 injectors
-closed-loop retrofit
-S/E 6-speed

First of all, the thing sounds great. It's got a much harsher "thump" to it. Lay into it, and it sounds like the coming of the Apocalypse....And that's with a quiet baffle....

Leaving Bethlehem, I took it easy to let the motor warm up. I got out onto 78, and got comfortable at about 70mph in 6th. For fun, I rolled on the gas on a decent uphill stretch...Went from 70 to 95 in nothing flat. No hesitation, no stumble...It just went.

The torque is unbelievable. I don't have a tach, so I have no idea how close to the power peaks I got, but "like a raped ape" doesn't really describe what the bike does now when I lay into it.

But the best thing is this; if I ride it like a normal person, it just seems like a torquey bike.

The 6-speed is awesome. With all the new torque, I can pass without downshifting, and the motor's nice and relaxed at highway speeds. With a fair amount of throttle abuse, I got 38mpg. Not bad at all considering I was getting 42 with the Stage 1.

Dave listened to what I wanted out of this build, and delivered in spades.

arealinvestor · 10-22-2009, 08:29 PM

You got a nice build,Dave is definitely the man!!!

aharp · 10-22-2009, 08:30 PM

TR's stuff works. Period.

TXCHOP · 10-22-2009, 08:39 PM

VERY nice!!!! Dave sure can build and tune them...Congrats on the new power and good luck.

Careful on 78...Almost lost my liscence there. Those roads invite WFO throttle...lol

towboattrash34 · 10-23-2009, 02:09 AM

very nice..... i bet T-Mans stage 3 heads would of got a little more and carried the tq a little longer.. but a very nice build

'05Train · 10-23-2009, 08:59 AM

Possibly. I'm thinking the larger intake valve would tend to shove the curve to the right, but that's water under the bridge at this point.

jerry34208 · 10-23-2009, 10:02 AM

That there's a fun motor! Good for you!

BVBOB · 10-23-2009, 10:24 AM

Awesome, should be a hoot in that light bike, looks to be a great combo of parts and tune.

qtrracer · 10-23-2009, 10:44 AM

Train, I think tow is just pissed his bike is broke again!

Jonas · 10-23-2009, 10:50 AM

Nice!!! I bet that feels like an entire different bike. Great Numbers That has to be at least a 50% increase in power over the stage one.

CONGRATULATIONS!!!

'05Train · 10-23-2009, 11:27 AM

It is like a completely new bike, no doubt about it.

Thanks guys!

ryanl · 10-24-2009, 08:40 AM

Quote:

Originally Posted by '05Train

Possibly. I'm thinking the larger intake valve would tend to shove the curve to the right, but that's water under the bridge at this point.

No doubt, shouldnt have any regrets at this point. Nice looking graph, especially for a light bike like that NT. I bet it is a blast.

Hillside · 10-24-2009, 11:52 AM

Dave is a hellava tuner!!
Scott

'05Train · 10-24-2009, 04:22 PM

Quote:

Originally Posted by Hillside

Dave is a hellava tuner!!
Scott

That he is. The really nice thing about dealing with him, rather than doing a "103 kit" through a dealer is that Dave took the time to talk to me and figure out what I wanted out of the build. There's no doubt my motor is overbuilt, but I wanted performance and reliability. I think I've got both, and I'm 100% satisfied with what I've got.

There is serious value in finding a builder and tuner you can work with.

Hillside · 10-25-2009, 06:31 AM

No happy dyno at Dave's, just honest tuning skills, that others like him, have as well.
Proud to have him as our friend.

Scott