Cam upgrade.... Any thoughts"
Thread Starter
|
Road Master
Joined: Nov 2012
Posts: 867
Likes: 15
From: South Central Pennylvania
Cam upgrade.... Any thoughts"
I have an 04 1200 Sportster that I'm thinking about installing the SE 575 cams. Any thoughts? What about other upgrads at the same time. Heads, lifters, rockers, carb, etc... Thoughts and opinions are more than welcome..
Road Master
Joined: Jul 2011
Posts: 1,030
Likes: 65
From: Calgary AB
Check out Hammer's Impact 560s. I'm in the process of installing a set in mine right now. I'm taking out a set of N9/555s.
I had Hydrosolid Lifters in mine, I switched back to OEM hydraulics.
If you can afford it, I'd suggest getting the heads done.
I had Hydrosolid Lifters in mine, I switched back to OEM hydraulics.
If you can afford it, I'd suggest getting the heads done.
Last edited by dwagar; Feb 10, 2013 at 11:33 PM.
Thread Starter
|
Road Master
Joined: Nov 2012
Posts: 867
Likes: 15
From: South Central Pennylvania
I've built many car engines but not too informed when it comes to Harley. There is a lot to consider.
I definitely do not want to go the solid lifter route. Head work is probably a necessity along with numerous other parts. I want to build it for longevity as well as performance.
I've always been accused of "over-building" my engines, meaning I spent money on the best parts when it probably wasn't necessary. But it did give me peace of mind.. Thanks...
The n4's are drop in and the SE.551 are drop in (very noisy) and hammer has a really awesome impact 560 that is drop in...
The 560 is nice cuz you can use them NOW and then when u do head work then you will already have bad a$$ cams
that what I would do... Only trouble is they are B.O. For a few months.
Also it would be good to get another oil pump gear so it will last longer.
The 560 is nice cuz you can use them NOW and then when u do head work then you will already have bad a$$ cams
that what I would do... Only trouble is they are B.O. For a few months.Also it would be good to get another oil pump gear so it will last longer.
Thread Starter
|
Road Master
Joined: Nov 2012
Posts: 867
Likes: 15
From: South Central Pennylvania
The n4's are drop in and the SE.551 are drop in (very noisy) and hammer has a really awesome impact 560 that is drop in...
The 560 is nice cuz you can use them NOW and then when u do head work then you will already have bad a$$ cams that what I would do... Only trouble is they are B.O. For a few months.
Also it would be good to get another oil pump gear so it will last longer.
The 560 is nice cuz you can use them NOW and then when u do head work then you will already have bad a$$ cams
that what I would do... Only trouble is they are B.O. For a few months.Also it would be good to get another oil pump gear so it will last longer.
Checked out your youtube video, very nice, Samson are real cool pipes. I do not have a facebook account so I was unable to access that, would liked to have seen what you have done...
Thanks for the tips, always appreciated
np...
I like drop in parts that dont require lots of mods... or "extra" parts.... the Impact .560 cams will be worth the weight. They are as quiet as stock infact many people said that they where more quiet than stock...
make sure that your cams match a good exhaust though our 2004+ motors need a good way to breathe... if you dont already have a good exhaust putting in any cam will only make the power WORSE... or leave really bad flat spots (reversion)
a GOOD 2-1 pipe... Samson Caliber... Patriot... V&H side shots(?) or Supertrapp.. ect.. will go A LONG way before needing cams... my samson pipe made a HUGE difference... Before the install i had SE II's i almost got cams instead of a pipe... sure glad i got a Pipe it changed the WHOLE power delivery.
The Powerflow III is not the most powerful pipe but it makes good linear power and it looks and sounds amazing... also you can EASYLY get new baffles for it.
I like drop in parts that dont require lots of mods... or "extra" parts.... the Impact .560 cams will be worth the weight. They are as quiet as stock infact many people said that they where more quiet than stock...
make sure that your cams match a good exhaust though our 2004+ motors need a good way to breathe... if you dont already have a good exhaust putting in any cam will only make the power WORSE... or leave really bad flat spots (reversion)
a GOOD 2-1 pipe... Samson Caliber... Patriot... V&H side shots(?) or Supertrapp.. ect.. will go A LONG way before needing cams... my samson pipe made a HUGE difference... Before the install i had SE II's i almost got cams instead of a pipe... sure glad i got a Pipe it changed the WHOLE power delivery.
The Powerflow III is not the most powerful pipe but it makes good linear power and it looks and sounds amazing... also you can EASYLY get new baffles for it.
Trending Topics
Grand HDF Member
Joined: Dec 2012
Posts: 3,782
Likes: 1,202
From: river
575 is a good cam. Factory lifters and rockers are fine. Of course rollers never hurt. Stay away from solid lifters. A good port job would do wonders with 575s. And yes, hammers 560s are awesome too. I'm not for sure, but you might need different springs to run the 575s.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
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
Road Master
Joined: Jul 2011
Posts: 1,030
Likes: 65
From: Calgary AB
The reason I'm pulling the N9s from mine is I'm chasing a bit more torque. Both Dan (NRHS) and Aaron (Hammer) suggested the intake valve closing at 53* was hindering my torque, that I should look at 48* - 50*.
The 575 is at 52*, the 560 is at 48*. That's why I went with the 560.
The 575 is at 52*, the 560 is at 48*. That's why I went with the 560.
Thread Starter
|
Road Master
Joined: Nov 2012
Posts: 867
Likes: 15
From: South Central Pennylvania
The reason I'm pulling the N9s from mine is I'm chasing a bit more torque. Both Dan (NRHS) and Aaron (Hammer) suggested the intake valve closing at 53* was hindering my torque, that I should look at 48* - 50*.
The 575 is at 52*, the 560 is at 48*. That's why I went with the 560.
The 575 is at 52*, the 560 is at 48*. That's why I went with the 560.
I agree with what you're saying but again, it depends on the rpm range you want the engine to make it's power. Basically we're talking about cam duration. Increasing duration will tend to shift the power and torque curves upward.
Longer durations lend themselves to higher rpm. I haven't made a decision as to what cam I want to run but I'm going to change the gearing so it will be better at acceleration. I don't do touring nor do I ride great distances. I like quickness, not too concerned with top speed. I may even go with something more radical then we've talked about. I've built many a high-winding Chevy for the street and never had problems as long as the corresponding quality parts recommended for the rpm range were installed. 4:88 to 1 was the norm for rear gears.
Being an under square engine by design Harley doesn't lend itself to extremely high rpm like the 4cyl metric bikes. Because of this piston speed is very high and causes greater side loads on the cylinder wall and limits max rpm.
From what I've read the Evo Sportster with a stock stroke will have problems with wear on the crank pin and other components when revved past 7K.
Everyone has heard or said the expression "no substitute for cubic inches." I like to add "except more efficiency."
Factory heads have marginal flow ability which is why to me an increase in bore size allows the use of a larger combustion chamber to accommodate larger valves which flows more air/fuel hence better efficiency. Head work is a must.
Thanks for your input Don, always helpful, this will be my first at building a Harley...