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[Fullsac Performance]

Here's the dyno test we all wanted to see. Woods 555-X Pipe-CVO 110 combo.

The Bike:
The Holy Grail. 2011 CVO Ultra. Burgundy and red with black flames. Very, very nice.

The parts list
Exhaust: Fullsac "B" X Pipe. 2.0 Fullsac Power cores.
Cams: Woods 555 installed with stock pushrods and Cometic .030 head gaskets.
AC: SE Ventilator. Now stock on 2011 CVO Ultra.
OEM computer was accessed and recalibrated with TTS Mastertune.
Thats it. Everything else is bone stock!

Dyno pulls:
Done 1 day apart. Same bike, same tank of gas, 5th gear.
Run 6: 82HP-97 TQ. Stock off the showroom floor.
Run 31: 107 HP- 112 TQ. 25 HP gain with parts listed installed and dyno tuned.

Bottom line:
The new Woods 555-X Pipe combo produced a very smooth and broad TQ curve. I've dynoed several 54s in 110s.
The 555s have virtually identical bottom end as the Andrews 54, crossing 100 TQ at 2500, but with a much longer
top end pull. If you like chasing numbers and don't mind spending a few bucks more for cams, these 555s are the hot ticket.
Just for fun, I pulled the stock AC. Made 109 HP and 115 TQ! Almost the magic 1 HP per cube.

Special thanks to Las Vegas local Gus Reifenrath for riding with a Fullsac!  

Steve George
Fullsac Performance

[10SE5]

Are these the corrected numbers?

[Fireguy]

How much are the 555's going for?

[dooinit2u]

I think everyone will love those numbers for the minimal investment...I sure do, just need to plan a trip to Az...LOL

[Fullsac Performance]

Correction factor standard.

Woods 555. Call for price.

Gus's 107 HP Ultra? Oh my.

SG

[hdbrad03]

SG


Two of us are contemplating moving from Andrews 32H(because to wake up Cam we need to bump compression) to the Woods 555 great results no compression bump. Why did you decide to change to .030 Cometic Head Gasket.

We have approx. 25k miles. Would you suggest a little head cleanup and valve guide change? Or just apply 555 and new lifters and run?


 
    Brad

[SBB]

SG


Two of us are contemplating moving from Andrews 32H(because to wake up Cam we need to bump compression) to the Woods 555 great results no compression bump. Why did you decide to change to .030 Cometic Head Gasket.

We have approx. 25k miles. Would you suggest a little head cleanup and valve guide change? Or just apply 555 and new lifters and run?


 
    Brad

Brad

A valve guide change is mandatory as far as I'm concerned.

SBB

[Black Diamond]

Brad

A valve guide change is mandatory as far as I'm concerned.

SBB

Hey Chip

Can you share some more details on the valve guide issue? If I have an issue I need to fix, I'd like to know up front. Besides, if the heads have to come off, all bets are off on what the mods would be.

JW

[SBB]

Hey Chip

Can you share some more details on the valve guide issue? If I have an issue I need to fix, I'd like to know up front. Besides, if the heads have to come off, all bets are off on what the mods would be.

JW

Sure!
But first let me say that this was my experience and may or may not apply to anyone else.
At somewhere between 10 and 11K miles on the bike, sometimes when I would run the rpm's up close to redline it was like I was hitting the rev limiter.
The motor would shut down for about a second then it would miss for a few seconds more.
IMO (and this is hindsight cause then I wasn't smart enough to know what was really happening) what was happening was a valve guide was slipping and holding the valve open just a fraction of a second. Between 11K to 19900 miles this happen 5 times. The fifth time I was on the on ramp to I-77s coming home from the NC HOG Rally. This time it was different. Rolling hard in 4th gear at 4K rpm all of a sudden it happened again. This time there was no confusion, no possible way I was hitting the rev limiter at 4K rpm.
About 5 miles from home I rolled on from a stoplight (not hard but not easy either) and all hell broke loose. Parts clanging, beating and knocking. I pulled over and then got the bike to the Harley shop. Front cylinder exhaust valve guide this time stuck permanently open. Stuck open and the exhaust valve had no choice but to stick also. Stuck in the open position the exhaust valve hit the intake valve and bent it. Bingo, open cylinder and no more forward motion for the 09.
Having a great dealer they replaced the head and installed (correctly) new valve guides. Based on previous issues with 110 head valve guides they also pulled the rear head and replaced the valve guides in it also.
So now I'm offering an opinion which I'm sure the experts can decide whether it's valid or not. From the same 10 to 11K miles to 19900K miles on the bike I had issues with the lifters. I now don't believe it was really a total lifter issue by itself, it was a lifter issue based on the valve guide slipping those 6 times in the head causing excessive play in the valve train system. After that rework of the heads at 20K miles I must note that I'm now at 48K miles and it runs well. Of the 4 V twin Harley motors in the garage, the 09 SEUC 110 is the nosiest motor I have. I'm sorry to say but I have learned to live with that.

That experience is why I posted above to Brad that I recommended to replace the stock valve guides in his 110.
Is this an issue for everyone? I don't have a clue.
But for me, if the head is coming off of a 110 of mine I'm having the guides replaced.
Everyone else can make that choice on their own.

SBB





   

[SBB]

And to SG sorry to hijack your thread but felt I needed to explain my recommendation to change the valve guides.
Great numbers, great product only topped by great service is what we have come to expect from Fullsac.
Your company is one of the few I can recommend with comfort to my friends.
Glad your a member here!

SBB

[Black Diamond]

Thanks for the great response buddy! Well, something else to consider.

JW

BTW: X2 the comments to Steve and his great products!  

[Fullsac Performance]

SG


Two of us are contemplating moving from Andrews 32H(because to wake up Cam we need to bump compression) to the Woods 555 great results no compression bump. Why did you decide to change to .030 Cometic Head Gasket.

We have approx. 25k miles. Would you suggest a little head cleanup and valve guide change? Or just apply 555 and new lifters and run?


 
    Brad

Hey Brad

The 32 with the 46 deg close is lazy on the bottom for sure. I installed one once and it will never happen again. Dyno numbers looked great. bottom end sucked.
The 555 would pick up your bottom end with out giving away any top.
You may actually gain at both ends. I'm still surprised at the width of the TQ line above 100 Ft pounds.
The .030 Cometic tightens the squish by .020. Tighter squish equals improved combustion efficiency. Helps reduce detonation too. Which by the way,
this brand new Ultra was pinging nicely during the baseline dyno pulls. I'm sure some of that TQ dip was the knock sensor pulling timing.
The .030 head gaskets may only be worth 1 or 2 HP, but I'm after everything I can get.
And it only adds about an hour to the cam install when your pulling rocker covers to use stock pushrods.
Sorry, I don't have any experience with the 110 head issues as others have mentioned.
I'm the type, if it ain't broke, I'm not fixing it. So far so good.

Steve George
Fullsac Performance

PS- Thanks for your endorsement guys! Really appreciate it.

[FLSTFI Dave]

It is interesting looking at the graphs for the Andrews 54 and the Woods 555.  If I am reading correct you get 5 more hp with the woods.  However you get 8 less foot pounds of torque.  Both seem to hit 100 torque right at 2500 rpm which is great for the street.

If ones goal is not chasing number but a great bike on the street and interstate which would you choose?  Accelerating from 70mph in 6th which would pull better?  Did the 110 graph on you site have the X-pipe?

Would the X-pipe over a 09 head pipe that was cut with the cat completely removed and re welded make a big difference in HP or Torque?

[Fullsac Performance]

It is interesting looking at the graphs for the Andrews 54 and the Woods 555.  If I am reading correct you get 5 more hp with the woods.  However you get 8 less foot pounds of torque.  Both seem to hit 100 torque right at 2500 rpm which is great for the street.

If ones goal is not chasing number but a great bike on the street and interstate which would you choose?  Accelerating from 70mph in 6th which would pull better?  Did the 110 graph on you site have the X-pipe?

Would the X-pipe over a 09 head pipe that was cut with the cat completely removed and re welded make a big difference in HP or Torque?

Dynos are very usefull tools, but their information gets misused and misunderstood all the time.There are lots of variables to factor in when
comparing dyno charts from different bikes done on different days. Its a ballpark comparison at best.
A real comparison would be the same bike, same gas, same day ect ect. The X Pipe will consistently show a TQ gain throughout the powerband
over a stock non cat headpipe. This characteristic matches up very well with a variety of mid range cams that will give the smooth flowing
TQ line that you typically see on my X Pipe dyno charts. The Andrews 54 and the Wood 555 both deliver exceptional TQ curves with the
Wood 555 pulling harder on the top end. 70 MPH roll on in 6th is going top be very similar with both cams.

Attached is a dyno chart from the same bike, same dyno session. 6th gear, no AC. The numbers are as real as it gets but I rarely do or post
6th gear pulls. The customer wanted it to impress his friends. Most people will never see these numbers from there dyno shop because the
runs are in 4th or 5th. Doesn't mean their bike cant do it, but if the conditions are not the same, the numbers will be less, much less.
I miss the old days when we evaluated performance with an ET slip from a quarter mile of asphalt. 

Steve George
Fullsac Performance

[2018_FLTRXSE]

Looks good Steve...

so, would you recommend the 555's over the 54's?...

I figure I can go either way.... thoughts?