WoodsBuggy.com
http://woodsbuggy.com/phpBB3/

How much difference is there between a 110 cam and a fk43
http://woodsbuggy.com/phpBB3/viewtopic.php?f=3&t=12983		 Page 1 of 1
Author:  The man [ Mon Jan 16, 2012 7:53 pm ]
Post subject:  How much difference is there between a 110 cam and a fk43
How much difference is there between a 110 cam and a fk43 cam
Author:  The man [ Mon Jan 16, 2012 8:05 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
The main questions I am concerned about is I was running a 110 cam in a 2500 with a 344 first gear tranny and I loved it but i would run out of cam fast and could not pull 2nd gear with the 456 r & p so when i had the motor apart I changed the cam to a fk43 whick would be good with the 1st gear trans. the problem comes in because i changed trans to a 2nd gear trans and i am worried the fk cam will make me have to use the clutch to much. Just how much bottom end will i lose if i stay with fk43 and 2nd gear trans.
Author:  Aaron Creech [ Mon Jan 16, 2012 8:28 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
In an engine that big the FK-43 would have more low end but its probably still gonna run out of cam pretty quick. Bigger engines require bigger cams to properly fill the cylinders.
Author:  Baddvw [ Mon Jan 16, 2012 8:47 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
I am running a 110 now, but I never ran out of cam, I have plenty of wheel speed with the 3.10 first gear that I am running, I have the rev limiter set on 6000 rpm and maybe hit it a couple of times. I understand that you ran a 3.44 first gear and you should be able to pull just fine with your second gear with the 4.56 r&p depending on what hill you are climbing, if you want to climb short, steep, curvy hills, the 3.10 works fine for me, I can climb straighter hills just as steep just fine with my 2.36 gears. Pipedope's buggy is a perfect example of what a 3.44 gear can do with his strong 2387cc, he can pull second gear just fine on the same hills I just described too, I don't think you will lose any bottom end torque with the FK-43, If you just change the first gear to 3.10 with 2.36 second with the 4.56 r&p, your 2500cc would do just fine.

The difference between the 2 cams is very close, one says not to use 1.4 rockers on the 110 and the other says you can, it is all what the buggy driver wants, it took me a little while to convince myself to run the 110, but I will switch over to a FK series cam (FK-45 or 46) if it wore the lifter bores out whenever I tear the engine apart to rebuild it in the future for preventive maintenance.

All of this I said is just based on what I have and have seen other buggies perform and knowing what they have also 8)
Author:  darrell [ Mon Jan 16, 2012 10:53 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
i run a fk-45 with 1.4 roller rockers with a 2443 people told me to chang to the the fk-43 but i have pleanty of bottom end power with the fk-45 no prob. yet man i hope i dont run in to lifter bore prob. maybe i should change it :?:
Author:  Aaron Creech [ Mon Jan 16, 2012 11:21 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
If the lifter bores were in good shape to start with you should be fine. Is your block aluminum or magnesium?
Author:  The man [ Mon Jan 16, 2012 11:28 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
the trans i have now has a 542 r & p and I have to run 2nd pretty much actually the motor I am talking about is troys old 2632 motor. It run perfect until for some reason it wore lobe off the cam and that is when i put the fk43 back in it. while the motor was being fixed I sold the red one sitter and then bought darrells blue one sitter and that is were the tranning swapping came in.
Author:  AB250r [ Tue Jan 17, 2012 1:48 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
I run a scat c 45 and love the low end! If you have a second gear tranny I'd say run a scat c95 you'll be very impressed! That's all the ole men ran around here and could come out the whole like a rocket in first but in second with rite ratio it would perform to the max! My 2 cents
Author:  ridenrace6 [ Tue Jan 17, 2012 5:49 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
you better do something or you gonna end up with some red and white stripes added to smurffet :lol: :lol: :lol: :lol:
Author:  smitty [ Tue Jan 17, 2012 6:23 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
The 110 and the fk43 r very close. The duration @.050 is246 on the 110 and 250 on the 43 which is the low end, any thing around 250 is good for what we do. I run a fk43 in a 2387 with a 2nd gear tranny and have no problem. I'm building a 2498 and put a 110 in it but think I'm going to split it back apart and slip in a fk44 and see how I like it.
Author:  The man [ Tue Jan 17, 2012 10:56 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
I had a 2500 with a vz15 and that thing run like a bat out of hell so that is why I went with the fk 43 cause it was support to be close to it.
Author:  darrell [ Tue Jan 17, 2012 6:43 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
Aaron Creech wrote:
If the lifter bores were in good shape to start with you should be fine. Is your block aluminum or magnesium?

its a as-41 block
Author:  hyde [ Tue Jan 17, 2012 8:39 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
NOT much W110 adv.duration 284 .050 247 lift 1.4 rockers .548 FK 43 adv. 281 .050 250 lift 1.4 rockers .536 C35 adv. 285 .050 246 lift 1.4 rockers .533 All 3 cams are reel TQ cam and should do what your looking for. fk43
Author:  Aaron Creech [ Tue Jan 17, 2012 8:45 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
When you add the 1.4 rockers to the W110 you can throw all those numbers right out the window. Advertised duration would be close to 300 and .050 well over 250.
Author:  hyde [ Tue Jan 17, 2012 9:07 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
Yes . how much i do not no . I do no it ads more lift then Duration . May be some day I will degree one and see. Advertised numders are at .004 or .006 lift
Author:  ridenrace6 [ Wed Jan 18, 2012 12:28 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
can somebody explain how the rocker changes duration?

i understand how changing the fulcrum point (ratio) of the rocker changes lift at the valve but i dont understand how it changes the duration, i also know that once it starts opening it will open faster (increased ramp speed) with the 1.4 vs 1.1 rockers but it looks to me like it should still start and end the opening and closing cycle at the same point on the cam regardless of the rocker ratio or maybe im just dum or overlooking something :?
Author:  Baddvw [ Wed Jan 18, 2012 2:23 am ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
ridenrace6 wrote:
can somebody explain how the rocker changes duration?

i understand how changing the fulcrum point (ratio) of the rocker changes lift at the valve but i dont understand how it changes the duration, i also know that once it starts opening it will open faster (increased ramp speed) with the 1.4 vs 1.1 rockers but it looks to me like it should still start and end the opening and closing cycle at the same point on the cam regardless of the rocker ratio or maybe im just dum or overlooking something :?


X2
Author:  hyde [ Wed Jan 18, 2012 7:28 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
hyde wrote:
NOT much W110 adv.duration 284 .050 247 lift 1.4 rockers .548 FK 43 adv. 281 .050 250 lift 1.4 rockers .536 C35 adv. 285 .050 246 lift 1.4 rockers .533 All 3 cams are reel TQ cam and should do what your looking for. fk43

These number are cam duration only advertised and .050. these numbers are ground in to the cam and will not change. . If you look at valve timing in duration and lift 1.4 over 1.1 will start moving the valve earlyer and close later and give you a little more duration. . You can call me Kevin 812-584-7644
Author:  wormy [ Wed Jan 18, 2012 9:22 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
The man wrote:
The main questions I am concerned about is I was running a 110 cam in a 2500 with a 344 first gear tranny and I loved it but i would run out of cam fast and could not pull 2nd gear with the 456 r & p so when i had the motor apart I changed the cam to a fk43 whick would be good with the 1st gear trans. the problem comes in because i changed trans to a 2nd gear trans and i am worried the fk cam will make me have to use the clutch to much. Just how much bottom end will i lose if i stay with fk43 and 2nd gear trans.

you better be concerned because all that motor and ur a$$ is still gonna be on the backothebus
Author:  wormy [ Wed Jan 18, 2012 9:25 pm ]
Post subject:  Re: How much difference is there between a 110 cam and a fk43
you need lessons again class is gonna start soon :roll: :roll: :roll:
Page 1 of 1 All times are UTC - 5 hours [ DST ]
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/