Dunno numbers don't seem right

[jrgreene1968]

There is nothing wrong, that cam is a torque variety, it's a 103.

Sure seems like a lot of work and money for 5hp and 1 tq gain.
Would have been money ahead to leave it alone, if that's the case

[harpwrench]

Your muffler swap probably isn't helping the left side any, from the looks of the description on their site. I'm guessing you're lucky it did as it well as it did.

[genzer]

I didn't expect much of a gain in torque by doing  heads but I expected more in hp, not sure about the exhaust but man they are loud! Just sayin!

[genzer]

JR, exactly !

[Thermodyne]

110/110 ain't bad for a 103 with those parts.  That set up is really not going to ever make big numbers.

I would want to see the flow numbers on those heads, it might be a bit of a disappointment.   

A cam that hung the intake open longer would improve the peak hp, but you'd pay for it under 3000.  But then that's what the extra compression is supposed to be for.   

[genzer]

Therm, I'd be content with 110/110 but that's not what I'm getting, gained a little under 5 hp for doing head work? doesn't seem right, could've saved money because there is no felt difference and it should've run stronger IMO

[Hossamania]

For my peace of mind, I would do a compression test.

[Thermodyne]

For my peace of mind, I would do a compression test.

Well, if you'd be happy with 110, then retard the cams 4 degrees, and retune it.

That cam will make 120/110 with good flowing heads.  I would expect to see the torque cross 110 pounds foot shortly after 2500 and stay above 110 till about 5000 rpm.  Yours just never gets there and then give up way early. 

If you got a exhaust gas reading, post that and lets see how it was burning.

[Don D]

There is nothing wrong, that cam is a torque variety, it's a 103.

Sure seems like a lot of work and money for 5hp and 1 tq gain.
Would have been money ahead to leave it alone, if that's the case

So much is not known including motor health. Guys are quick to blame heads, not likely

[SOCS]

I am no expert, far from it, but I am going to throw this out there. A buddy from work built his twin cam last year using a proven recipe and had it tuned locally.  His numbers were no where near the desired results and bike didn't have the power be felt it should. He took it to another tuner which yielded the same result. They tore into the bike and discovered it was sumping and he used the wrong exhaust gasket. A smashed o ring and the wrong exhaust gaskets killed it.

[Don D]

Exactly.
You would be surprised the misses I get calls on. Then further probing things like deck height and piston to valve clearance was not checked.
Years ago I did a test with just heads  and no other changes. On a 103 it yielded 7hp 5tq.

[Buglet]

   Don, was that on a bone stock bike or was there different changes done to the bike.

[genzer]

Checked compression - rear-120 front-118 as far as motor health 4952 miles,not beat on. Talked again to the tuner says he'll do another pull but thinks that's all that combo will make, and my mistake he dyno's in 4th.

[kd]

That compression is way too low. Enter your info into the Big Boyz calculator to see what it should be and compare to that.  It will be a close estimate.  Did you have the throttle valve open and crank until it stopped bumping up? How's your battery and cranking speed? .... use a car battery for a jumper to ensure a good test?  Try another "known good" compression tester for comparison. 

[Don D]

   Don, was that on a bone stock bike or was there different changes done to the bike.

This was a stage 1 96"
http://harleytechtalk.com/htt/index.php/topic,88341.125.html

Regarding the compression test something is wrong with the test or your motor. Were the ACRs disconnected?

[kd]

Ahhhha .... I forgot about the ACR's.  That may be it too.

[genzer]

  front 170 rear 180

[Don D]

Likely not enough corrected compression to work the combination optimally

[genzer]

What avenue's do I have?

[rigidthumper]

Fire it up for 30 seconds, shut it off, remove both plugs, and repeat CCP test with ACRs disconnected and throttle open. If you're still at 170, cam timing or ring seal is suspect. That combo should crank near 200.

[Ohio HD]

  ^^^
  THIS


And also check it with another gauge. Less extensive gauges are sometimes suspect.

[PoorUB]

And then a third gauge! It wouldn't be the first time someone had two bad compression gauges!

[genzer]

 Will do, gonna have to wait till tomorrow to borrow one. Flow numbers 273 c.f. @ 28" I appreciate all the help guys thx again.

[BVHOG]

First off, like mentioned get the damn sheet in forced scaling (crossing hp and torque lines at 5250)  I sold a kit to a guy this spring and the numbers were down considerably and the graph looked just like that. Pulled 40z out of the sump. Once again the wrong O-ring in the pump to case location. And TAB "Zombie" baffles. What the hell is that? But go ahead and blame the tuner or head porter immediately.

[Ohio HD]

Bob is right, you can't say what is what until you check it out.