124" build...I'll let the cat out of the bag

[CowboyTutt]

All that with "loaner" heads!     Amazing.  Totally bad ass.  Very nice TQ curve.  Jim, just out of curiousity, how much max ignition timing was it able to take?  Any 124 that can break 150 HP is totally impressive.   

Regards,

-A- 

[Raleigh111]

640 cam
124 ci
hillside heads??
good exhaust
compression set where it should be angry
i would expect it to break the 150 mark!
maybe more with a better tunner
nice job jim and ray

[HD/Wrench]

640 cam
124 ci
hillside heads decked the heads to 84 cc  that is what they did
good exhaust
compression set where it should be angry
i would expect it to break the 150 mark!
maybe more with a better tunner
nice job jim and ray

[No Cents]

   to clarify about the heads.
The previous owner of the heads tried to do the port work himself...and Scott @ Hillside just milled the heads to where the owner wanted them.

[Admiral Akbar]

   to clarify about the heads.
The previous owner of the heads tried to do the port work himself...and Scott @ Hillside just milled the heads to where the owner wanted them.

So they weren't really ported like Steve said originally?

[Just Nick]

640 cam
124 ci
hillside heads??
good exhaust
compression set where it should be angry
i would expect it to break the 150 mark!
maybe more with a better tunner My Thoughts exactly, Definitely more there
nice job jim and ray

[HD/Wrench]

   to clarify about the heads.
The previous owner of the heads tried to do the port work himself...and Scott @ Hillside just milled the heads to where the owner wanted them.

So they weren't really ported like Steve said originally?

I cleaned up the heads as the DIY porting job  by owner  was extremely rough.. Think  high speed air grinder and carbide cutter .. I spent a few hours  doing the best I could with what I had to work with. 

[strokerjlk]

For those paying attention and want to see the 150's for Hp  . The pipe is what pushed this over into the 150's
Would have been a another one of those mid 140's 124's without Rays barn built pipe .

[vincer77]

Nice work Ray and Jim!  And just a reminder that Ray's pipe is available as a production piece from Burns Stainless

http://www.exhaustengineer.com/community/press-releases/nhb-exhaust-for-harley-davidson

[Admiral Akbar]

Nice work Ray and Jim!  And just a reminder that Ray's pipe is available as a production piece from Burns Stainless

http://www.exhaustengineer.com/community/press-releases/nhb-exhaust-for-harley-davidson

[2006FXDCI]

Vince , any chance you will be making a dyna pipe in the future ?

[StrokerDave]

Ray did you order a spare rear tire...

[Templer]

GREAT post read!!! I wonder if anyone can convince my wife that another say another $2K or so would make me MORE happy? Love that Exhaust!!! U-Tube sound post yet?? Passing alarmed parked cars must sound like a flock of birds???

[Just Nick]

Vince , any chance you will be making a dyna pipe in the future ?

They have thought about a Dyna exhaust but Mid controls make it hard to get equal lengths.


The pipe Vince posted retails at $1699 FYI 

[strokerjlk]

The old heads vs the loaner heads .

[No Cents]

  that's a perfect example of no matter what combo I've ran with this pipe...the curves are almost identical.

[Just Nick]

  that's a perfect example of no matter what combo I've ran with this pipe...the curves are almost identical.

All right that's it get off the computer and get on the bike you have no business any ware but riding for the next few weeks.  Go on get  ing

[No Cents]

  it's raining right now...or I would be 

[groundhog143]

Well if you not going to ride it,you must be out in the barn checkin the CCP

[johncr]

  it's raining right now...or I would be 

Time for a video than?

[Admiral Akbar]

The old heads vs the loaner heads .

It's a little odd that only the heads made the change equally across the board. I would have though that the better heads would have showed more up top and not so much on the bottom.. There is a greater improvement up top for sure. Was there anything else that changed?   What would contribute to more power across the band?    cams were the same?  Compression ratio?   Gear?  Weather conditions?

[Don D]

84cc, domed pistons, 124"
Compression !
The air pump only has so much demand.
good heads, bad heads, loaner heads, they met the demand.

[No Cents]

   Max...the only change to this combo is the heads in that graph comparison.
Same exhaust, same pistons, same 640 cams, and same ratio rocker arms in both graphs.

[No Cents]

Well if you not going to ride it,you must be out in the barn checkin the CCP

  nope...making lasagna for supper.

[No Cents]

  time to eat. 

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