Joined
·
3,942 Posts
Currently i have a hot cams cam in my stock motor with stock head and stock piston/cylinder.
Is this a very good cam?
Or is there a better one?
Is this a very good cam?
Or is there a better one?
best cam for stock head???
1 - 14 of 14 Posts
Joined
·
10,895 Posts
TBW0533 , another thread was just running about this ...
Joined
·
3,942 Posts
Yah i saw it awhile ago, but whats the difference between your cam, hot cams, takagawa cam?
Joined
·
1,155 Posts
I had a hot cams in my old 110 and loved it , wayyyy better than stock
Joined
·
977 Posts
Joined
·
3,942 Posts
lol idk thats what i want to knooo. idk what lift and duration even mean =(
Joined
·
1,620 Posts
In layman's terms, how far it opens the valve, and how long it's open.
Joined
·
3,191 Posts
a lamens way to view a cam is the camshaft is like the metaphorical brain of a 4 stroke engine. the cam tells the engine when to breath when to exhale/in a sense how much to breath (<---lots of different factors go into that so for now we will just keep it simple and go w/ my metaphor)/ and how long it will breath for.
Common Camshaft terms:
- Duration: how long the valves stay open, measured in degrees of camshaft rotation.
- Lobe Separation: The relationship between the centerline of the intake and exhaust lobes in degrees.
- Lift: The distance the rocker moves from the cam base circle or the valve is lifted off the valve seat
- Valve Overlap: The period when both the exhaust and intake valves on the same cylinder are open at the same time, shown in degrees.
LIFT
“Lift” refers to the distance the rocker arm or valve is moving, and there are three terms that you will commonly hear: Cam lift, Gross Valve Lift, and Net Valve Lift. Cam Lift is the maximum distance the cam will move the rocker above the base circle of the camshaft. For example, a camshaft might have .350 inch lift. Gross Valve Lift is the cam lift multiplied by your rocker arm ratio. If you had a 1.6-ratio rocker, your .350 inch lift camshaft would produce .560-inch of gross valve lift. Net Valve Lift is the gross valve lift minus the valve lash that you set. For example, if you are running .020 of valve lash, your Net Valve Lift in the previous example would be .540-inch (0.350 times 1.6, minus 0.020).
More lift means more space between the valve and the seat, and more airflow, but the maximum amount of lift possible at the valve is usually limited by potential contact between the valve and piston. Even if it was possible to run however much lift you wanted to, though, the question of how much lift is usable before any further increase fails to yield any power gains is difficult to answer without taking into consideration several other factors. which basically means generally speaking you can't throw to much lift at it.
DURATION
“Duration” refers to the total angle in camshaft degrees that a valve is held open. This determines what the power range will be. big duration number's produce more power at higher rpms where as smaller duration numbers will produce power lower in the rpm range.
Joined
·
1,109 Posts
This is and will always be a debate, because ...
The came manufacturers do not give you the specs of the cam your buying ( if you want buy a came for a small block Chevy from say Crane cams or say Lunati cams they will openly give you the specs to there cams and witch cam will give you more power where in the powerband ) unlike company's that make cams for minis as far as we know they are all just a copy of another .
Now that being said yes they do give you more power and are a must for anyone wanting more power out of your mini,
Has anyone on the speced a cam ?
I know that takagawa makes different cams for the +R head but they are the only ones.
Witch is a lil crazy considreing how many different cams there are for a chevy v8 .
It would be nice to know witch cam makes better lowend and witch makes better top .
When building a V8 cam is the most important thing next to oil in the motor ,you can have the best cyl head in the world but if the cam is not holding the valves open long enough to get the air in there it is point less.
Sorry for the rant guys this just always wondered why .
The came manufacturers do not give you the specs of the cam your buying ( if you want buy a came for a small block Chevy from say Crane cams or say Lunati cams they will openly give you the specs to there cams and witch cam will give you more power where in the powerband ) unlike company's that make cams for minis as far as we know they are all just a copy of another .
Now that being said yes they do give you more power and are a must for anyone wanting more power out of your mini,
Has anyone on the speced a cam ?
I know that takagawa makes different cams for the +R head but they are the only ones.
Witch is a lil crazy considreing how many different cams there are for a chevy v8 .
It would be nice to know witch cam makes better lowend and witch makes better top .
When building a V8 cam is the most important thing next to oil in the motor ,you can have the best cyl head in the world but if the cam is not holding the valves open long enough to get the air in there it is point less.
Sorry for the rant guys this just always wondered why .
Joined
·
3,942 Posts
Think i bit off more than i could handle haha. I suppose ill just stick with my hot cams
Joined
·
3,191 Posts
agreed the mini bike world is sad when it comes to cam selection, and even sader yet for those few cam selections most cant get numbers from the company. you have to purchase the cam and degree it.
i have speced a number of cams for these lil guys had quite the excel worksheet going. unfortunately my comp got a virus and crashed a while back lost alot data i had colllected dynos/cam specs/yata yata. i thought i had them saved to my flash but thats a big no go :-(. the only one i have any data for is for a yx 4V head which 99.99999% dont give a flock about that head. web cam and mega cycles are good about giving specs on their cams Web Cam Inc. - Performance and Racing Camshafts
takegawa, kitaco, and daytona use to provide cam specs a long time ago but have since stopped. i was told and i have no clue how much of this is true or not. reasoning why is cause alot of guys/companies would get specs and get cams made else where cheaper.
Joined
·
10,895 Posts
We ALL want more spec and info on everything
The reason I suggested TBW0533 is experience and gained physical knowledge
The Lobes are so big on TBW0533 you can barely get it into a stock KLX110 head and over the years guys have been known to dremel out the opening
00 just recently tested it in a stock head and was able to get it in , as have a few others
Years back we looked at numerous cams and TBW0533 was the BIGGEST on the market
Sorry we dont have spec
But im going to do a comparison to stock with pic soon here
The reason I suggested TBW0533 is experience and gained physical knowledge
The Lobes are so big on TBW0533 you can barely get it into a stock KLX110 head and over the years guys have been known to dremel out the opening
00 just recently tested it in a stock head and was able to get it in , as have a few others
Years back we looked at numerous cams and TBW0533 was the BIGGEST on the market
Sorry we dont have spec
But im going to do a comparison to stock with pic soon here
Joined
·
977 Posts
most are gonna be better than stock, was looking for comparsions aganist other popular aftermarket cams like the tak, hot cams, bbr etc.
bigger isnt always better.. the more lift a cam has the more chance ur gonna have with valve float or introducing the valve to the piston
Joined
·
10,895 Posts
Understood ,
Thanks for your input
This cam were talking about has been tested & no piston to valve contact occured
1 - 14 of 14 Posts
