Milwaukee Eight 107 cam testing
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
Sheldon,
Check out Fuel Moto's Facebook and Instagram pages and see my bike (Denim Black 2017). We had some issues with my first choice of cam and my exhaust set up (VH header and Eliminator mufflers). They then suggested the Woods 22x cam and it's awesome. There is a sound clip of my bike on their page as well. Hope this helps you.
Check out Fuel Moto's Facebook and Instagram pages and see my bike (Denim Black 2017). We had some issues with my first choice of cam and my exhaust set up (VH header and Eliminator mufflers). They then suggested the Woods 22x cam and it's awesome. There is a sound clip of my bike on their page as well. Hope this helps you.
Road Warrior
Joined: Jun 2017
Posts: 1,832
Likes: 174
From: Indiana
Originally Posted by teedoff65
What was your first cam choice? and what issues did you have?
We originally installed the S&S 475C. As we have been stating the M8 is extremely exhaust sensitive and the trend of overly large baffles is not what these motors want, especially with the lobe centers and event timing on some cams. A cam that rock & rolls with one exhaust combination may perform totally different with another. In this example the customer was running V&H PowerDuals with Eliminator 400 mufflers which have a large louvered baffle this exhaust is not biased toward low end torque. The 475C cam did not like this setup, while the peak numbers were very good it was very soft on the bottom and reponse was less than desirable. We tried several exhaust swaps with some improvements, however in the end we decided to re-install the customers exhaust and swap the cam based on his original objectives and it all worked out. Again, it wasnt the cam specifically (the 475C is one of our favorites), as the end results are relative to the complete combination, one component can make or break the whole thing. For sure the single biggest problem we are encountering is bikes equipped with mufflers with excessively large baffles, and it will affect some cams more than others.
__________________
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
We originally installed the S&S 475C. As we have been stating the M8 is extremely exhaust sensitive and the trend of overly large baffles is not what these motors want, especially with the lobe centers and event timing on some cams. A cam that rock & rolls with one exhaust combination may perform totally different with another. In this example the customer was running V&H PowerDuals with Eliminator 400 mufflers which have a large louvered baffle this exhaust is not biased toward low end torque. The 475C cam did not like this setup, while the peak numbers were very good it was very soft on the bottom and reponse was less than desirable. We tried several exhaust swaps with some improvements, however in the end we decided to re-install the customers exhaust and swap the cam based on his original objectives and it all worked out. Again, it wasnt the cam specifically (the 475C is one of our favorites), as the end results are relative to the complete combination, one component can make or break the whole thing. For sure the single biggest problem we are encountering is bikes equipped with mufflers with excessively large baffles, and it will affect some cams more than others.
Thankfully, I went with the same setup you guys tested. I already had the S&S MK45's, so I lucked out there.
But, the problem might arise if I ever decide to go with different slip ons. I'll have to research slip ons
all over again.
I was afraid you were going to say that! lol
Thankfully, I went with the same setup you guys tested. I already had the S&S MK45's, so I lucked out there.
But, the problem might arise if I ever decide to go with different slip ons. I'll have to research slip ons
all over again.
Thankfully, I went with the same setup you guys tested. I already had the S&S MK45's, so I lucked out there.
But, the problem might arise if I ever decide to go with different slip ons. I'll have to research slip ons
all over again.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
I like the idle sound better with them out. What's the drawback with leaving them out?
FYI Planning on having it dynoed as well in a couple weeks.
Cruiser
Joined: Apr 2014
Posts: 166
Likes: 11
From: Gastonia, N.C.
I have the MK45's with the reducers out, and plan on running the 475 cam with the jackpot headpipe.
And I agree the 475 cam sounds way better with the reducers out.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
Honestly, I cant feel any difference riding it. Feels pretty much the same with them in or out.
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Low end torque is significantly stronger with the inserts in, night & day when referring to dyno charts; at 2500 RPM's 10-15 Tq or more. In the end it all depends on the performance and sound you are looking for.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
Would they need to be in or out for the full dyno I'm having done? Or does it matter?
Thanks for the help Jamie!