which intake and exhaust cam? - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

khalifa · 01-30-2012, 08:45 PM

which intake and exhaust cam is the best for climbing hills and what stage?

boomer669 · 01-30-2012, 08:54 PM

What all is done to your motor? Stock cams work good. With the exhaust cam in the cam mod position.

khalifa · 01-30-2012, 09:04 PM

i got dasa exhaust, k&N filter and Power commander v

i will change both the intake cam and the exhaust cam

boomer669 · 01-30-2012, 09:25 PM

The 06 to the 08 intake cams are about the best for the R. Do a search and lots of guys have been getting some good power out of them. I havent seen to much done with the exhaust cam on the R.

khalifa · 01-31-2012, 06:39 AM

thnx am looking for it..

funyun · 01-31-2012, 10:06 AM

Quote:

Originally Posted by boomer669

What all is done to your motor? Stock cams work good. With the exhaust cam in the cam mod position.

Don't change the position of the stock exhaust cam on the YFZR. There is no "cam mod" like the old bikes

Kovatch · 01-31-2012, 12:54 PM

The YFZ 06-08 cam is worth .9-1.5 hp depending a few variable, etc. Just changing the intake cam to the YFZ has yielded some pretty good results. It's simple and cheap. With a Dyno tune you might be able to squeak a little more hp out of it.

I do not recall if MMAD's Warpspeed cam (drop in) puts down better numbers than the YFZ or not.

You could also get another couple ponies out of an MSD over the PCV.

khalifa · 01-31-2012, 03:50 PM

i dont know how to use the MSD and i cant afford it right now

khalifa · 01-31-2012, 04:31 PM

and since am in climbing sand hill drag race ,, it's ok to take from the bottom end and put it to the top end?, i start with gear 2 and change to gear 3 and stay on it tell the end.

khalifa · 01-31-2012, 04:34 PM

see this link FSA over 650 sportsman pro dumont dunes - YouTube

**06yfz** · 01-31-2012, 04:55 PM

With the mods that you already have, i would wait on cams. I would have the head ported first and switch to a fuel customs intake.

khalifa · 01-31-2012, 05:02 PM

who is the best in head porting>?

khalifa · 01-31-2012, 05:07 PM

or it's ok to make any atv mechanic to do it?

**06yfz** · 01-31-2012, 05:22 PM

No, I would send the head to one of the known drag porters... mmad, oi, kenz, re etc all of them do an excellent job and are behind most of the bikes you see in those fsa videos.

XX700XX · 01-31-2012, 05:45 PM

Quote:

Originally Posted by khalifa

which intake and exhaust cam is the best for climbing hills and what stage?

Talk to Eric from EHS Racing. Like others have said here previously, the stock cams work good. You will see way bigger gains from a head port!!!!

Eric is extremely knowledgeable and will help you answer any questions you might have. My friend has 11:1 piston with stage 2 hot cam in his Honda 700xx, he put down 45hp SAE. I have the same piston with Eric's cam and head, I put down 55hp SAE and 15hp more in the over rev on the piston and cam!!!!

www.ehsracing.com

boomer669 · 02-01-2012, 12:22 AM

Quote:

Originally Posted by funyun

Don't change the position of the stock exhaust cam on the YFZR. There is no "cam mod" like the old bikes

Your right, I didnt look to see what fourm he posted in. I thought he was talking about the older yfz.

Ya i would wait on anything else. Get a good fuel programmer and you will be set. As time goes on and money frees up get an fci and then if you want more power start playing with the motor from there.

doug-moore · 02-01-2012, 03:06 AM

I have Dasa and PCV, added a Fuel Customs Intake and picked up an extra 2 HP through most of the range, almost 2.5HP at the peak.

khalifa · 02-01-2012, 06:02 AM

which is better fuel custom intake or K&N one?

SaaR · 02-01-2012, 06:11 AM

I think fuel custom have the best intake for the yfz

khalifa · 02-01-2012, 09:39 AM

in overal of what u said :
change from PCV to MSD
change from K&N intake to fuel custom
change from original R intake cam to 06-08 cam
have my head ported.

their is any side effect of head porting?

and what about pistons? their is any side effect for changing it?

01-30-2012, 08:45 PM	#1 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	which intake and exhaust cam? which intake and exhaust cam is the best for climbing hills and what stage? Last edited by khalifa; 01-30-2012 at 09:19 PM.

01-30-2012, 08:54 PM	#2 (permalink)
boomer669 Senior Member Join Date: Jan 2009 Location: Caldwell, Idaho Posts: 481	What all is done to your motor? Stock cams work good. With the exhaust cam in the cam mod position. __________________

01-30-2012, 09:25 PM	#4 (permalink)
boomer669 Senior Member Join Date: Jan 2009 Location: Caldwell, Idaho Posts: 481	The 06 to the 08 intake cams are about the best for the R. Do a search and lots of guys have been getting some good power out of them. I havent seen to much done with the exhaust cam on the R. __________________

01-31-2012, 12:54 PM	#7 (permalink)
Kovatch Senior Member Join Date: Aug 2007 Location: NE OH Posts: 823	The YFZ 06-08 cam is worth .9-1.5 hp depending a few variable, etc. Just changing the intake cam to the YFZ has yielded some pretty good results. It's simple and cheap. With a Dyno tune you might be able to squeak a little more hp out of it. I do not recall if MMAD's Warpspeed cam (drop in) puts down better numbers than the YFZ or not. You could also get another couple ponies out of an MSD over the PCV. __________________ 2009 YFZ450R Baldwin, DP, DID, Houser, K&N, Maxxis, LSR, PD, PEP, Rath, RPM, Sparks, SunStar, WorksConnection Waiting on Six5Designs for my YFZR stuff. =) Special thanks to Baldwin Motorsports

01-31-2012, 04:55 PM	#11 (permalink)
06yfz ~ Moderator ~ Join Date: Nov 2006 Location: Oregon Posts: 1,515	With the mods that you already have, i would wait on cams. I would have the head ported first and switch to a fuel customs intake. __________________

01-30-2012, 09:04 PM	#3 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	i got dasa exhaust, k&N filter and Power commander v i will change both the intake cam and the exhaust cam

01-31-2012, 06:39 AM	#5 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	thnx am looking for it..

01-31-2012, 03:50 PM	#8 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	i dont know how to use the MSD and i cant afford it right now

01-31-2012, 04:31 PM	#9 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	and since am in climbing sand hill drag race ,, it's ok to take from the bottom end and put it to the top end?, i start with gear 2 and change to gear 3 and stay on it tell the end.

01-31-2012, 04:34 PM	#10 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	see this link FSA over 650 sportsman pro dumont dunes - YouTube

01-31-2012, 05:02 PM	#12 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	who is the best in head porting>?

01-31-2012, 05:07 PM	#13 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	or it's ok to make any atv mechanic to do it?

01-31-2012, 05:22 PM	#14 (permalink)
06yfz ~ Moderator ~ Join Date: Nov 2006 Location: Oregon Posts: 1,515	No, I would send the head to one of the known drag porters... mmad, oi, kenz, re etc all of them do an excellent job and are behind most of the bikes you see in those fsa videos. __________________

02-01-2012, 03:06 AM	#17 (permalink)
doug-moore Junior Member Join Date: Nov 2011 Location: Tulsa, Oklahoma Posts: 23	I have Dasa and PCV, added a Fuel Customs Intake and picked up an extra 2 HP through most of the range, almost 2.5HP at the peak.

02-01-2012, 06:02 AM	#18 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	which is better fuel custom intake or K&N one?

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02-01-2012, 06:11 AM	#19 (permalink)
SaaR Member Join Date: Oct 2011 Posts: 95	I think fuel custom have the best intake for the yfz

02-01-2012, 09:39 AM	#20 (permalink)
khalifa Junior Member Join Date: Jan 2012 Posts: 17	in overal of what u said : change from PCV to MSD change from K&N intake to fuel custom change from original R intake cam to 06-08 cam have my head ported. their is any side effect of head porting? and what about pistons? their is any side effect for changing it? Last edited by khalifa; 02-01-2012 at 09:45 AM.