TTS: Milwaukee 8 Testing
Thread Starter
|
HD EFI Guru
Joined: Jan 2008
Posts: 4,489
Likes: 4,776
Just a little update on the TTS 120 Kit with the TTS 200 camshaft. Bike has about 1500 miles on it now, here is the current dyno run. Looks like it may need a little more tuning on the high RPM as we have picked up a little ping above 5500, but we will wait until we get done with the testing. Then a change to the TTS 250 camshaft and see how well it does.
6th Gear
Joined: May 2017
Posts: 12
Likes: 1
From: South Dakota
stage 1 performance combinations
and if so which brands have you seen perform the best. Fuelmoto has posted pretty easily read information.
I like the open sound of the jackpot slash downs or v&h twin slash rounds.
thanks for any help/ knowledge you can send my way.
Thread Starter
|
HD EFI Guru
Joined: Jan 2008
Posts: 4,489
Likes: 4,776
just curious on combinations that performed the best. I have a road king special 107 and am trying to decide if its worth the money to get header pipes on top of slip ons, heavy breather, and tune.
and if so which brands have you seen perform the best. Fuelmoto has posted pretty easily read information.
I like the open sound of the jackpot slash downs or v&h twin slash rounds.
thanks for any help/ knowledge you can send my way.
and if so which brands have you seen perform the best. Fuelmoto has posted pretty easily read information.
I like the open sound of the jackpot slash downs or v&h twin slash rounds.
thanks for any help/ knowledge you can send my way.
6th Gear
Joined: May 2017
Posts: 12
Likes: 1
From: South Dakota
To Steve
So far of all the reports I have been given and what we have tested here the stage 1 of just slipons and air filter are all the same. Sure there are some BS dyno reports out about bigger gains but no one in the field is able to repeat them. The Stage 1 107's are all seeing about 3 hp max increase. That said pick what you like based on looks and sound but you need to hear them in person as video's have proven to mislead many on what they thought versus what they got.
Thread Starter
|
HD EFI Guru
Joined: Jan 2008
Posts: 4,489
Likes: 4,776
All depends on what you plan to do with it. For my money if you are going to keep the engine stock then a set of slipons by themselves or an air cleaner by itself is a waste of time, for performance on a 107 M8. The two together with a good tune you will feel a change. Adding a headpipe without cat is a waste of money on and otherwise stock bike. What I can say is how you add parts makes thing look different to some. What I mean is if you add slipons you will see little gain if any and if you add just an air cleaner you get the same results. Now when you add both you will get somewhere. The order you do it in doesn't matter as it takes both to do any good. So if you do AC first then slipons you would feel the gain after the slipons were installed and feel that was the one that did it. Now if you reverse the order and do the slipons first then AC you would claim the AC did the trick.
If you plan to add a cam or more engine parts I will give you a different answer. The headpipe with cat is much much better than HD has done in the past.
If you plan to add a cam or more engine parts I will give you a different answer. The headpipe with cat is much much better than HD has done in the past.
Last edited by Steve Cole; May 12, 2017 at 02:23 PM.
6th Gear
Joined: May 2017
Posts: 12
Likes: 1
From: South Dakota
All depends on what you plan to do with it. For my money if you are going to keep the engine stock then a set of slipons by themselves or an air cleaner by itself is a waste of time, for performance on a 107 M8. The two together with a good tune you will feel a change. Adding a headpipe without cat is a waste of money on and otherwise stock bike. What I can say is how you add parts makes thing look different to some. What I mean is if you add slipons you will see little gain if any and if you add just an air cleaner you get the same results. Now when you add both you will get somewhere. The order you do it in doesn't matter as it takes both to do any good. So if you do AC first then slipons you would feel the gain after the slipons were installed and feel that was the one that did it. Now if you reverse the order and do the slipons first then AC you would claim the AC did the trick.
If you plan to add a cam or more engine parts I will give you a different answer. The headpipe with cat is much much better than HD has done in the past.
If you plan to add a cam or more engine parts I will give you a different answer. The headpipe with cat is much much better than HD has done in the past.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Warrior
Joined: Jun 2015
Posts: 1,325
Likes: 140
From: Edinburgh UK
Hang on, maybe it's that Friday feeling or something but first you say..
...then go on to say...
Somewhere being 3hp max ?!? I'm lost 
Thread Starter
|
HD EFI Guru
Joined: Jan 2008
Posts: 4,489
Likes: 4,776
On a stock 107 M8
Slipons, Air cleaner = ~ 3hp
Slipons, AirCleaner and good tune = ~6hp
There are people on this site claiming 9 - 12% from just an Air Cleaner and that is total BS on a M8. Uncontrolled or just being flat-out stupid in test methods is the only way I can see to get those type results. Same goes for those claiming 10 Hp from slipons and air cleaner for the 107 M8
Slipons, Air cleaner = ~ 3hp
Slipons, AirCleaner and good tune = ~6hp
There are people on this site claiming 9 - 12% from just an Air Cleaner and that is total BS on a M8. Uncontrolled or just being flat-out stupid in test methods is the only way I can see to get those type results. Same goes for those claiming 10 Hp from slipons and air cleaner for the 107 M8
