Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[HD Street Performance]

JKM great thread. Steve, I realize I'm probably comparing apples to oranges a 2008 vs 2012? but could I expect to see similar results with head work on a 110 in a 2012?  So far I did D & D Fatcat 2:1 with Woods 222 cam, Power Vison, Dyno, Woods lifters, stock Intake. Current HP104 TQ 120.  Would like to add more without going to a 117.  Or wouldn't I see much gain at all? Anyone wants to chime in feel free.

08 and the 12 are the same except the head color is back to Black from Granite for most models.
If you want somewhere in the mid to high teens and the same or better torque than you have now give it some cam so it can breath and compression. Look at 245°-248° duration and ~.6 lift. with about 102-104LSA. Use HD pistons, 22502-07 or .010 OS 22503-07. No head milling.

If more is wanted then do the head work but beware that now you are beginning to diminish the returns from the added breathing potential with lack of air from the restrictive stock TB. I have made in excess of 120/120 SAE with ported 110 heads on a CVO110 at 9.9:1 on Razorbacks Dyno with Cycle Rama CR575 235° degree cams but I believe that one had a larger TB as well. Another example was posted here that was tuned by Doc in Florida that made 121/126 with pistons and a SE259 cam, less than ideal pipe. This build was 106/118 before the head work and pistons were installed, all the same appurtenances and also tuned previously by Doc.

Many ways to get there but the bang for the buck will be before head work, that last 8-10 hp will be expensive and all the time the lower end being stock looms in the background if it is not addressed at least by plugging and or welding and trueing the crank and better rods.

[TorqueInc]

http://horsepowerinc.net/Indy_Reworks.htm

 Have horsepower inc bore and port the throttle body,well worth the money

Stage 3 heads from J would be overkill for a 110 you would only need very minor porting and a good valve job

  You can re-use the stock valves and valve guides if they are in good shape.

I understand you are in canada but J is going to suggest using new valves and you will not need them.

  X2 for Sachs guy knows exactly what needs done to make power and wont sell you a bunch of parts you dont need or flow numbers that dont add up.

Unless you are stuck on the woods cam   you might wanna have sachs give you a cam suggestion as well

  Actual flow numbers off of a stock 110 head on a 4.010 bore cylinder @28" radiused inlet same size as the port opening.

  Cannot remember if i used a pipe on the exhaust or not been a little while

   .100  65/59.5

  .200  140.8/120

  .300  198.2/161

  .400  241/188.4

  .450  251.2/193.9

  .500  262/202.1

  .600  270.8/210.4

  .650  273.9/211.1

   

[firefighter156]

Thank you for the advice and comments. Your expertise is appreciated.

[Unbalanced]

Bump

Quote from: Deweysheads on January 11, 2013, 08:36:55 PM
Actual numbers,
.1 74.5
.2 144.1
.3 205
.4 252.6
.5 276.3
.6 280.3
.7 286.1

AVERAGE from .1-.7 217

A good valve job and a little pocket porting gets them up to close to 300 with stock valves, sorry for the error.
Commentary:
These heads move a lot of air yet maintain good low lift flow. An OEM 96" head in comparison.

.1 59.4
.2 121
.3 176.4
.4 211.2
.5 223
.6 223
.7 223

AVERAGE from .1-.7 177

Stock CVO 110 head shows 23% better AVERAGE flow bench numbers than a OEM 96/103" head and in fact quite a bit more airflow than a lot of ported OEM heads. The MOCO lists flow numbers in the SE catalog that are lower. Variances in testing apparatus such as the bore fixture, inlet adapter (or Throttle Body) and testing pressure does change the numbers. HD does not list any of their testing parameters.
These heads I tested were using the same bore adapter 3.938", the 110 heads had a 45mm velocity stack and the 96" heads were tested on the same barrel and with a 1.71 id velocity stack. Test pressure is 28" H2O not converted, native. Some of the less expensive benches test at 10" and then math is used to go up to 28. Throttle bodies on the heads can show lower numbers. I show the flow numbers more for comparison purposes and not to guarantee power or advertise my product. I treat the 110 a little different than some. We either do little work to the heads or go all for it. Cubic inch size, budget, and the intended goal control the path. The stock head, better guides added of course, and a good valve job with Serdi tools plus some pocket porting and short side work does well for all of the lower lift and shorter duration cam builds.

Let's clarify this a bit, so that the numbers are truly meaning full.   How many inches are these numbers representative of?   25"  28"  what ?

[firefighter156]

Well said. You will barely feel the few extra horse power and foot pounds of torque you would gain by just doing this. But your wallet will feel much, much lighter. Have you considered dropping in a 120R?        

Actually I have but still debating it 

[Unbalanced]

BUMP   still unanswered.       

Bump

Quote from: Deweysheads on January 11, 2013, 08:36:55 PM
Actual numbers,
.1 74.5
.2 144.1
.3 205
.4 252.6
.5 276.3
.6 280.3
.7 286.1

AVERAGE from .1-.7 217

A good valve job and a little pocket porting gets them up to close to 300 with stock valves, sorry for the error.
Commentary:
These heads move a lot of air yet maintain good low lift flow. An OEM 96" head in comparison.

.1 59.4
.2 121
.3 176.4
.4 211.2
.5 223
.6 223
.7 223

AVERAGE from .1-.7 177

Stock CVO 110 head shows 23% better AVERAGE flow bench numbers than a OEM 96/103" head and in fact quite a bit more airflow than a lot of ported OEM heads. The MOCO lists flow numbers in the SE catalog that are lower. Variances in testing apparatus such as the bore fixture, inlet adapter (or Throttle Body) and testing pressure does change the numbers. HD does not list any of their testing parameters.
These heads I tested were using the same bore adapter 3.938", the 110 heads had a 45mm velocity stack and the 96" heads were tested on the same barrel and with a 1.71 id velocity stack. Test pressure is 28" H2O not converted, native. Some of the less expensive benches test at 10" and then math is used to go up to 28. Throttle bodies on the heads can show lower numbers. I show the flow numbers more for comparison purposes and not to guarantee power or advertise my product. I treat the 110 a little different than some. We either do little work to the heads or go all for it. Cubic inch size, budget, and the intended goal control the path. The stock head, better guides added of course, and a good valve job with Serdi tools plus some pocket porting and short side work does well for all of the lower lift and shorter duration cam builds.

Let's clarify this a bit, so that the numbers are truly meaning full.   How many inches are these numbers representative of?   25"  28"  what ?

[bigpete1]

BUMP   still unanswered.       

it says right in reply all test done @ 28" hope this helps you

[Unbalanced]

BigPete,

Appreciate you seeing that, I just don't recall seeing it on my original pass which was why i asked, but then again it may have been there, might have just been the edit too the day after i asked.  Thanks,