I can only go by what the HD Stage IV engine kit lists: SE 10.5:1 forged pistons and the head gasket in the kit.

Sumping question eliminated: <2 oz oil from crankcase.

Tune #1 Stage IV w/ cat headpipe 100/104 (tuner said it should make more)
Tune #2 888, Jackpot (tuner couldn't make it run worth beans)
Tune #3 no changes from #2 115/116 injectors over duty cycle (barley streetable, slow making power but ran like hell up top)
Tune #4 5.3 injectors slow making power 111/112 (off idle bad, 2250 glitch, 2750 glitch and just when it runs nice its at 6200)

NOTE tuner #2 not same as tuner 1,3&4.

 

Okay followed your instructions and determined sumping is not the issue.

< 2 oz oil from crankcase.

Thank you.

 

Post some dyno sheets.

Do you have a full sized crossover on the fuel moto 2/1/2 pipe?

Who assembled the engine? It looks like you ended up with twin cooled high compression pistons which would put you at 11:25 to 1 compression( pn 27000007) to get close to 220 ccp.

 

And the tune, lets see what is in that

Its not peak number issue so maybe some basic efi parameters that need attention

 

I need wife to post the dyno sheets. I'll have them up by tomorrow.

No full sized crossover yet (arrives Thursday).

Dealer installed pistons. At this point no way to know what part number the pistons are.

 

Good. Your CCP is where it should be for your configuration and the TMan 625s will produce similar CCP results but if your heads are the CNC factory "ported" heads that are included in the SD 103 Stage IV Race/Street kit, the spec says that .585" lift is the limit. I am thinking a different cam set with a later intake close, like the Andrew TW60, would be a step in the right direction. Cam set and tuner are the areas I would be focusing on but that's just me.

 

I would be focused on someone who knows how to tune a engine at this point and leave the cams alone. It would be interesting to see a sheet on this engine.

 

What ignition system do you have and is the base timing set properly. Believe it or not mine was not and there was a very noticeable difference. My base was set to low allowing it to only get to 17 degrees. retarded timing will make it lazy.

 

Okay I ran a tank of 97 octane and the bike was stronger and the driveablity was pleasing. IMO the timing is not advancing enough. Like sporacer says I believe my timing baseline is too low.

Now how to figure out going into my TTS and advancing my timing across the table one degree at a time.

 

If sumping there will be a lot of oil in the cases. There's no drain plug in the crankcase, but you can go by what's in the cam chest. There should be very little. If there was more than a few tablespoons in there when you had the cam plate out, the oil pump may not be scavenging well enough.

I'm with djl, figure out what's wrong with what you have before you start all over.

FWIW, I have the Tman 625 with 10.6 static and LOVE it. Like someone else said, it's strong from bottom to top. But I think that's irrelevant until you figure out what's wrong with yours...