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[scotman623]

Having Hillside do the 128 Big bore kit on my CVO RG.. Scott Palmer is a very Knowledgeable builder and I feel very confident he will build me a Beast... Here is what is being done... 128 big bore kit, Stage 2 cylinder head work, SS 550 cam,new clutch basket, Aim SDR clutch,Lifters, pushrods, Valve springs, SS oil pump and cam plate. I’m sure I’m forgetting things he also mentioned doing... I will post parts list and Dyno results when completed.. I’m really looking forward to riding this bike... Stay tuned for the Results... I’m hoping for 145-150 HP and the same for torque.. The most important is a nice smooth line with lots of torque..

[Heatwave]

Who’s doing the dyno tuning? I didn’t realize Scott now does tuning.

[scotman623]

Scott is doing the tuning via direct link, left my power vision with him in case he needs to go that way...

[joe98]

Good choice !  Lots of happy customers makin lots of power.   Sounds like it's gonna be a stump puller.   Keep us posted on the build and the results.   

[MakoCVO]

Having Hillside do the 128 Big bore kit on my CVO RG.. Scott Palmer is a very Knowledgeable builder and I feel very confident he will build me a Beast... Here is what is being done... 128 big bore kit, Stage 2 cylinder head work, SS 550 cam,new clutch basket, Aim SDR clutch,Lifters, pushrods, Valve springs, SS oil pump and cam plate. I’m sure I’m forgetting things he also mentioned doing... I will post parts list and Dyno results when completed.. I’m really looking forward to riding this bike... Stay tuned for the Results... I’m hoping for 145-150 HP and the same for torque.. The most important is a nice smooth line with lots of torque..

I have a '19 CVO RG, and I'm also considering a 128 kit. Here is the build I'm considering:

Revolution Performance "NSC" 4.25" bore cylinders and forged pistons (CVO Black Granite color) 128"
S&S 475 cam
S&S billet cam plate and oil pump 
S&S premium tappets
S&S pushrods 
S&S billet anti rotation cuffs
S&S 200k psi head bolts
Daytona Twin Tech 6.2 injectors
SE iridium high compression spark plugs
AIM centrifugal clutch
Fullsac Performance stainless header
Khromewerks mufflers

Keep us posted on the build.

[rayson56]

I have a '19 CVO RG, and I'm also considering a 128 kit. Here is the build I'm considering:

Revolution Performance "NSC" 4.25" bore cylinders and forged pistons (CVO Black Granite color) 128"
S&S 475 cam
S&S billet cam plate and oil pump 
S&S premium tappets
S&S pushrods 
S&S billet anti rotation cuffs
S&S 200k psi head bolts
Daytona Twin Tech 6.2 injectors
SE iridium high compression spark plugs
AIM centrifugal clutch
Fullsac Performance stainless header
Khromewerks mufflers

Keep us posted on the build.

Any news on your builds guys??

Merry Christmas!

[FLSTFI Dave]

Having Hillside do the 128 Big bore kit on my CVO RG.. Scott Palmer is a very Knowledgeable builder and I feel very confident he will build me a Beast... Here is what is being done... 128 big bore kit, Stage 2 cylinder head work, SS 550 cam,new clutch basket, Aim SDR clutch,Lifters, pushrods, Valve springs, SS oil pump and cam plate. I’m sure I’m forgetting things he also mentioned doing... I will post parts list and Dyno results when completed.. I’m really looking forward to riding this bike... Stay tuned for the Results... I’m hoping for 145-150 HP and the same for torque.. The most important is a nice smooth line with lots of torque..

What head pipe and mufflers you going to run?  Are they done yet?  Would love to see how the torque curve came out.

[goop]

I have a '19 CVO RG, and I'm also considering a 128 kit. Here is the build I'm considering:

Revolution Performance "NSC" 4.25" bore cylinders and forged pistons (CVO Black Granite color) 128"
S&S 475 cam
S&S billet cam plate and oil pump 
S&S premium tappets
S&S pushrods 
S&S billet anti rotation cuffs
S&S 200k psi head bolts
Daytona Twin Tech 6.2 injectors
SE iridium high compression spark plugs
AIM centrifugal clutch
Fullsac Performance stainless header
Khromewerks mufflers

Keep us posted on the build.

do not use those injectors just get the 5.5 screamin eagle. the daytona 6.2 are for a LS motor and has a different spry pattern. save your money on the AIM lockup dont need it. just get a rekluse clutch fibers and disc. get S&S 605 springs installed and use the woods 408 cam.  i also have the revolution performance 128 on my 19 cvo rg. with the 11.3-1 compression you can go with a little hotter of a cam. you wont regret it. also a good 2-1 with a ghost pipe will provide the best power.

[scotman623]

What head pipe and mufflers you going to run?  Are they done yet?  Would love to see how the torque curve came out.

. Unfortunately my bike has just been sitting on the lift for the last 23 days now!!! Only part that is holding up the build is the 5.5 injectors ordered through H-D!!! Guess they are having all kinds of computer issues and lots of orders got messed up!!! I was supposed to go to Daytona for Christmas to visit my father and go riding with him, unfortunately it’s not happening because of H-D delays.... I’m running The fuel Moto header and have the 2.25 Fullsac baffles installed in the stock pipes, I will look at the Dyno numbers and more specifically the Curves and see if I have to do something different with the exhaust system!!!! Can’t make any decisions without my bike!!! Just CRAZY I’m still waiting... Hillside and Scott have been very good with me so far and always answer and returns all my questions, I’m sure he is frustrated with the H-D screw up too!!! Hopefully soon I will be able to post a parts list and dyno results....

[Fullsac Performance]

. Unfortunately my bike has just been sitting on the lift for the last 23 days now!!! Only part that is holding up the build is the 5.5 injectors ordered through H-D!!! Guess they are having all kinds of computer issues and lots of orders got messed up!!! I was supposed to go to Daytona for Christmas to visit my father and go riding with him, unfortunately it’s not happening because of H-D delays.... I’m running The fuel Moto header and have the 2.25 Fullsac baffles installed in the stock pipes, I will look at the Dyno numbers and more specifically the Curves and see if I have to do something different with the exhaust system!!!! Can’t make any decisions without my bike!!! Just CRAZY I’m still waiting... Hillside and Scott have been very good with me so far and always answer and returns all my questions, I’m sure he is frustrated with the H-D screw up too!!! Hopefully soon I will be able to post a parts list and dyno results....

The last 124 M8 I did with 5.5 injectors hit 91% duty cycle making 144 HP. I think the plan with the 6.2s was spot on.

SG

[HD Street Performance]

Have a similar bike going through the paces now. We went to a Daytona Twin Tec 7.0 injector

[Fullsac Performance]

Have a similar bike going through the paces now. We went to a Daytona Twin Tec 7.0 injector

When you stop and think, it's amazing we can double the Horsepower of a Harley with only adding bigger injectors to the fuel system. Never even think about upgrading the stock fuel pump, filter, pick up and supply lines. The factory system has left us a lot of room to grow. If we were doubling the HP in a car we would be replacing everything starting at the fuel pick up in the tank.

SG

[scotman623]

When you stop and think, it's amazing we can double the Horsepower of a Harley with only adding bigger injectors to the fuel system. Never even think about upgrading the stock fuel pump, filter, pick up and supply lines. The factory system has left us a lot of room to grow. If we were doubling the HP in a car we would be replacing everything starting at the fuel pick up in the tank.

SG Steve, So your thoughts on my build I could have went with the 6.2 injector over the 5.5? Thanks for ALL your input!!! I follow lots of your post here and on other H-D forums, I definitely trust your Judgment bye following your thoughts and opinions on builds.

[scotman623]

The last 124 M8 I did with 5.5 injectors hit 91% duty cycle making 144 HP. I think the plan with the 6.2s was spot on.

SG. Could you please explain what 91% duty cycle means? I’m guessing it means they weren’t efficient enough? Or am I totally off base? Thanks for your help and explaining.... Scott

[Fullsac Performance]

Duty cycle on an injector is real easy to understand. At 100% duty cycle they are maxed out on the fuel they can provide. Rule of thumb on a performance build is to never exceed 85%. This leaves a safety margin. Many tuning software program's (TTS for one example) will show a red flag and give a warning when you exceed 85% while tuning. Stock Harley's run about 70% duty cycle. This leaves us quite a bit of room to grow but there is a limit. Myself, knowing your heading north of 140HP with your build, I would suggest the 6.2 injectors just to be on the safe side. No harm in going a little bigger than you need in a performance application. Too small and you will have your dyno tuner breaking out in a sweat.

Steve@fullsac.com