are all Bseries vtec the same? And does anyone have the part number? thanks!

 

ITR LMA's are different.

 

D's right, the ITR LMA's are different.
You can probably look up the part numbers here:

http://www.acuraautomotiveparts.org/...ER+ARM+%282%29


[Modified by zygspeed, 4:41 PM 2/8/2003]

 

Acura automotive doesn't list part numbers.

 

What is a LMA?

 

Oh well ...

Lost Motion Assembly -- part of what makes VTEC possible in Acura DOHC motors.
It provides the cam-following and locking mechanism for going from one set of cam lobes to the "VTEC" (bigger)cam lobes.


[Modified by zygspeed, 4:46 PM 2/8/2003]

 

Lost motion assembly. I do not know their purpose and function. D, SgT or anyone else care to explain LMAs function?

 

boy, ed is mr. help today

 

part # 14820-P73-J01 LMA $29.19

 

So is Mr. Junior R

 

 

thanks!

 

yep, everyone is all over this thread...

 

lost motion assembly acts as a third valve to keep the vtec rocker arm in contact
with the cam lobe when vtec is not in use

 

Thanks SgT. for you.

 

how does the itr lma differ from other vtec ones?

 

I'd guess there are a little stronger due to the higher redline of an ITR.

 

ah, are they lighter in anyway? woudl that even help?

 

Lighter in this case would probably mean weaker.

Frankly, I defer to sgt"s expertise.

 

they have more mass so id assume they were heavier.
the spring inside is stiffer and the contact area is larger in order to handle
the extra rpm and lift.

 

nice thanks