Milwaukee Eight testing.

[Durwood]

As I mentioned when we got to stage 2 the AC element was removed as it was holding back the power, I only had the SE stage one at the time and not much available in aftermarket air cleaners.

But since, there have been some introduced to the market. I would still like to try a Heavy breather.

Here are the results of the air cleaner testing for those that are interested.

Click on graph then maximize for full size image.
[attach=0]

[Durwood]

Daren,

Any comparison thoughts between the 460 cam and the stock decat headpipe exhaust setup verses the D&D exhaust? Could you tell any difference in riding the bike versus what the dyno numbers show?

TIA,

K.

I put 200 miles on it yesterday with the D&D and I could feel the low end difference, but on the 4 lane the noise was pretty bad. I am going to try a Rush Wrath muffler on it to see if that will tame it down some.

[1FSTRK]

He's baaaack.
Post 200 is a great one, looks like we are still lacking a really good non restrictive AC for the M8 at this level. I wonder how bad they are hold back the bigger M8 builds.

What cam, pipe, and other mods to the engine at the time of the AC testing?

Almost forgot
GREAT Job thanks for posting.

[Durwood]

He's baaaack.
Post 200 is a great one, looks like we are still lacking a really good non restrictive AC for the M8 at this level. I wonder how bad they are hold back the bigger M8 builds.

What cam, pipe, and other mods to the engine at the time of the AC testing?

Almost forgot
GREAT Job thanks for posting.

Finally got a chance to play a little.

During this testing it was with the de-cat head pipe, Fullsac 2" cores and CR-460.

[1FSTRK]

He's baaaack.
Post 200 is a great one, looks like we are still lacking a really good non restrictive AC for the M8 at this level. I wonder how bad they are hold back the bigger M8 builds.

What cam, pipe, and other mods to the engine at the time of the AC testing?

Almost forgot
GREAT Job thanks for posting.

Finally got a chance to play a little.

During this testing it was with the de-cat head pipe, Fullsac 2" cores and CR-460.

You may want to try the SE M8 Heavy breather #29400264 to see how it compares.

[Durwood]

He's baaaack.
Post 200 is a great one, looks like we are still lacking a really good non restrictive AC for the M8 at this level. I wonder how bad they are hold back the bigger M8 builds.

What cam, pipe, and other mods to the engine at the time of the AC testing?

Almost forgot
GREAT Job thanks for posting.

Finally got a chance to play a little.

During this testing it was with the de-cat head pipe, Fullsac 2" cores and CR-460.

You may want to try the SE M8 Heavy breather #29400264 to see how it compares.

That's in the plan for down the road.

[Neon Moon]

Durwood I see of talk about cr and tman cams but not a lot about Redshift. Is there a reason?

[Durwood]

Durwood I see of talk about cr and tman cams but not a lot about Redshift. Is there a reason?

The only reason is that I haven't tried one yet.

[Neon Moon]

Ok. Just put a set of 576s and 10.5 piston in my 110. Has Rush 7017HO head pipes and 2.5 big Louie slip ons really has stump pulling torque at low rpms.
Using Thunder Max tuner. Someday I will get it dynoed just to see where it's at. Enjoy reading your post.

[NCTURBOS]

Daren,

Any comparison thoughts between the 460 cam and the stock decat headpipe exhaust setup verses the D&D exhaust? Could you tell any difference in riding the bike versus what the dyno numbers show?

TIA,

K.

I put 200 miles on it yesterday with the D&D and I could feel the low end difference, but on the 4 lane the noise was pretty bad. I am going to try a Rush Wrath muffler on it to see if that will tame it down some.

Gotcha... I'm in the mood for a winter upgrade to mine, just not sure exactly on the exhaust. I know I only want to buy once, assuming the future might hold for more!

If you have some extra coin laying around for air cleaner testing: https://tmanperformance.com/product/t-man-no-loss-air-cleaner/



Thanks,

K.

[Durwood]

Daren,

Any comparison thoughts between the 460 cam and the stock decat headpipe exhaust setup verses the D&D exhaust? Could you tell any difference in riding the bike versus what the dyno numbers show?

TIA,

K.

I put 200 miles on it yesterday with the D&D and I could feel the low end difference, but on the 4 lane the noise was pretty bad. I am going to try a Rush Wrath muffler on it to see if that will tame it down some.

Gotcha... I'm in the mood for a winter upgrade to mine, just not sure exactly on the exhaust. I know I only want to buy once, assuming the future might hold for more!

If you have some extra coin laying around for air cleaner testing: https://tmanperformance.com/product/t-man-no-loss-air-cleaner/



Thanks,

K.

I've seen those but they are a little on the pricey side for me. 

[Hossamania]

Daren,

Any comparison thoughts between the 460 cam and the stock decat headpipe exhaust setup verses the D&D exhaust? Could you tell any difference in riding the bike versus what the dyno numbers show?

TIA,

K.

I put 200 miles on it yesterday with the D&D and I could feel the low end difference, but on the 4 lane the noise was pretty bad. I am going to try a Rush Wrath muffler on it to see if that will tame it down some.

Gotcha... I'm in the mood for a winter upgrade to mine, just not sure exactly on the exhaust. I know I only want to buy once, assuming the future might hold for more!

If you have some extra coin laying around for air cleaner testing: https://tmanperformance.com/product/t-man-no-loss-air-cleaner/



Thanks,

K.

I've seen those but they are a little on the pricey side for me. 

No price is too great in the pursuit of knowledge.
Oh, wait, I just saw the price.
Looks like a little less knowledge will be ok.

[Moparnut72]

They must have painted over the gold plating.   
kk

[Pete_Vit]

looks like the air cleaner cover I fabricated for my Se Air filter... a cut off tool to the stock Harley Air cleaner and viola! guess I should etch my initials on it and sell 'em 

[SLAATY]

Looks like you'll also need the optional 3" Footboard Extension Kit. For $500, of course.

[Durwood]

I put a Wrath muffler on the Billet Cat, it lost a little on the left, but it sure sounds different, we are getting close to the Twin Cam sound.

While I have the BC on the bike I am going to experiment with other baffles and muffler assemblies.
[attach=0]

[sfmichael]

  good info

smaller baffle (than 2.50) in the stock Billet Cat I assume?

[Durwood]

good info

smaller baffle (than 2.50) in the stock Billet Cat I assume?

After further examination, the baffle in the Wrath muffler I tested is a 3.00" NOT 2.50".

I have a new 2.50" baffle here and it is in fact smaller than the one I tested...I apologize for the confusion, but I was told it was a 2.50" and should have verified prior to testing.

When time allows I will install the 2.50" baffle and retune.

[lucasg]

Great job Darren , keep up the good work and thanks for your efforts.  Have you ever done any testing with the newer Bassani Road Rage 2-1 pipes ? 

[Durwood]

Great job Darren , keep up the good work and thanks for your efforts. Have you ever done any testing with the newer Bassani Road Rage 2-1 pipes ?

Not as of yet.

[sfmichael]

good info

smaller baffle (than 2.50) in the stock Billet Cat I assume?

After further examination, the baffle in the Wrath muffler I tested is a 3.00" NOT 2.50".

I have a new 2.50" baffle here and it is in fact smaller than the one I tested...I apologize for the confusion, but I was told it was a 2.50" and should have verified prior to testing.

When time allows I will install the 2.50" baffle and retune.

thanks for the clarification - what size is in the BC?...it seems to work very well

[badcooky]

Awesome stuff man , this is the stuff.
Do you think a small bump in compression would help or hinder the CR460/450 cams ?

[Durwood]

good info

smaller baffle (than 2.50) in the stock Billet Cat I assume?

After further examination, the baffle in the Wrath muffler I tested is a 3.00" NOT 2.50".

I have a new 2.50" baffle here and it is in fact smaller than the one I tested...I apologize for the confusion, but I was told it was a 2.50" and should have verified prior to testing.

When time allows I will install the 2.50" baffle and retune.

thanks for the clarification - what size is in the BC?...it seems to work very well

2.5" Best I can tell without pulling it out of the can.

Awesome stuff man , this is the stuff.
Do you think a small bump in compression would help or hinder the CR460/450 cams ?

Thanks..

A compression increase would help either cam, but I wouldn't pull heads for the sole purpose of raising the compression.

[badcooky]

Awesome stuff man , this is the stuff.
Do you think a small bump in compression would help or hinder the CR460/450 cams ?
Thanks..

A compression increase would help either cam, but I wouldn't pull heads for the sole purpose of raising the compression.


No neither would I.

Awesome work mate.

[1FSTRK]

He's baaaack.
Post 200 is a great one, looks like we are still lacking a really good non restrictive AC for the M8 at this level. I wonder how bad they are hold back the bigger M8 builds.

What cam, pipe, and other mods to the engine at the time of the AC testing?

Almost forgot
GREAT Job thanks for posting.

Finally got a chance to play a little.

During this testing it was with the de-cat head pipe, Fullsac 2" cores and CR-460.

You may want to try the SE M8 Heavy breather #29400264 to see how it compares.

That's in the plan for down the road.

Just a thought after looking at some other threads both here and in the dyno section I think testing a better TB and or manifold would be my next step. Just like the air cleaner, small changes to improve the intake tract will most likely give noticeable returns in HP. The stock head flow is clearly more than adequate at this level but is it flowing at 100% on the bike. I know many will feel that the stock TB is big enough but this is not about TB bore at the throttle plate it is about resistance to flow up stream of the port itself.
Thanks again for all your effort.