I have heard that there are differances, but what are they?

Are they physically the same size? Are the ITR ones stiffer?

 

They are stiffer.

 

not worth the effort/cost ultimately.......i would stick to what you have you'll be good to go!

 

Anymore input?

 

i have heard that the itr LMAs keep the valves more in check with the bigger cams. ie. at idle, there is less ticking from the valves because of the stiffer rates. is it worth it? i dont know. never tried them before.

 

I notice much less valve train noise....

 

val,

The LMA is a nipple that keeps the rocker arm from moving too much or vibrating (making noise) at higher rpms in VTEC.

the ITR LMA are bigger. So when you go to a big lift cam and higher rpms there is less chance of the rocker arm shifting from vibration and changing your rocker arm ratio. Remember the actual amount of valve lift is cam spec lift adjusted by the rocker arm ratio.


For bigger cams and a higher redline I am told they ARE worth it.

sgT??? Lip???




[Modified by Michael Delaney, 10:23 PM 1/3/2002]

 

You are way off on this one.
The purpose of the LMA is to keep pressure on the vtec cam follower so that
vtec will engage properly. It CANNOT CHANGE ROCKER ARM RATIO, and
rocker arms DO NOT SHIFT.

Honestly I do not know the advantage of an ITR LMA vs a regular one.
Stiffness is probably the only one i can think of. I have them both and
there are no visible size differences and the pressure they exert I do not
have a tool to measure. There are so many people using regular non ITR
LMAs with Toda cams and other high lift cams with no problems.
Even with ITR LMAs, I hear PLENTY of chatter at idle. I say if you have extra
money, get the ITR ones, if not, dont sweat it.

 

ITR LMA is highly recommended with bigger cams. ITR LMA has a blue dot to identify them. It absorbs the force from the center VTEC rocker arm (which is constantly in contact with the vtec lobe) following the center vtec lobe. It is stiffer than non-R LMA's. Honda knows what they're doing, they are different for a reason.




[Modified by frank@b16a.com, 10:50 PM 1/3/2002]


[Modified by frank@b16a.com, 10:51 PM 1/3/2002]

 

Other then possibly being more noisy, are there any other disadvantages Frank?

 

I worked on a B16 that recieved ITR springs/cams over the holidays... it had LMS that were softer than the ITR ones I have felt in the past.

Will

[grammar]


[Modified by Willard, 10:16 AM 1/4/2002]

 

Val, check mail. I've got a set that's been sitting in my garage for about a year.

 

thanks Frank.