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Old 06-01-2008, 01:49 PM   #1
Combustion Contraption
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Default *NEW* B-Series LMA Info
Porting a head for a customer, I advised him to switch to the newer LMA style for his build (aftermarket cams, road racing, he was using the old tapered nipple style LMA's). I placed the order for the parts and went to pick them up. Apparently, Honda is no longer making the LMA we are all used to for the BVTEC heads, and instead have switched to the spring style as found in S2000, K-Family, and OBD2 Preludes. The old part # has been superceeded to 14820-PCB-305, which is NOT the same as the OBD1 Prelude w/ .040" washer trick, which was part # 14820-PCB-003. Below are some pics...


Old Vs. New



Height Measurement



Height Measurement

As you can see, they are roughly the same height, within a few thou which is within the range of acceptability due to the fact that I was taking the pics with one hand while holding the caliper with one hand and may have fudged the measurement just a bit. I will be doing a coil bind pressure test in the next few days , I'll update this thread when I do.
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Old 06-01-2008, 01:51 PM   #2
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
wow...interesting........you can even see there is a shim/washer at the bottom to take up the extra space.....
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Old 06-01-2008, 02:38 PM   #3
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Default Re: *NEW* B-Series LMA Info (non-VTEC)
sweet .... looks like modified LMAS will be a thing of the past ..
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Old 06-01-2008, 03:11 PM   #4
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
Interesting-keeping the AM forum tech
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Old 06-01-2008, 05:15 PM   #5
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Default Re: *NEW* B-Series LMA Info (b19coupe)
good info
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Old 06-01-2008, 05:45 PM   #6
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
I got a set from honda for a 2000 si about a month ago and thats what I got. Much cheaper too
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Old 06-01-2008, 05:47 PM   #7
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Default Re: *NEW* B-Series LMA Info (Runnerdown)
Im kinda noob but is this new style better? If so how?
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Old 06-01-2008, 06:05 PM   #8
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
Very interesting.
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Old 06-01-2008, 06:07 PM   #9
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Default Re: *NEW* B-Series LMA Info (mar778c)
also noob question, but are they lighter???? if so would that even benefit the motor at all???
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Old 06-01-2008, 07:31 PM   #10
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Default Re: *NEW* B-Series LMA Info (Godspeed07)
tag for personal edification. and edjumication.
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Old 06-01-2008, 07:53 PM   #11
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Default Re: *NEW* B-Series LMA Info (Adam@VisionaryAuto)
Quote:
Originally Posted by Adam@VisionaryAuto
Im kinda noob but is this new style better? If so how?
Havent done any hardcore testing, so I cant give a concrete answer, but if Honda went to this style for their advanced performance engines (H22A, K20A, F20C, F22C) its probably something worth looking at.

Quote:
Originally Posted by Godspeed07
also noob question, but are they lighter???? if so would that even benefit the motor at all???
Yes, they are lighter. I dont have numbers. The force is pretty small , but if you subscribe to the "every little bit helps" club, maybe you will sleep better at night.

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Old 06-01-2008, 08:06 PM   #12
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
CC,

Great info! Keep us informed!
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Old 06-01-2008, 08:13 PM   #13
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Default Re: *NEW* B-Series LMA Info (h46it)
Very interesting. I am curious to see how they will work. How much are they compared to the old lma's? I need to pick some up as soon as my head is back from NRGTech.

EDIT.....

$22.24 each at hondapartsdeals.com
http://www.hondapartsdeals.com...8&y=7

If anyone here can beat that price let me know.


Modified by 96Spec Ek at 12:26 AM 6/2/2008


Modified by 96Spec Ek at 12:27 AM 6/2/2008
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Old 06-01-2008, 08:17 PM   #14
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Default Re: *NEW* B-Series LMA Info (96Spec Ek)
Quote:
Originally Posted by 96Spec Ek
Very interesting. I am curious to see how they will work. How much are they compared to the old lma's? I need to pick some up as soon as my head is back from NRGTech.
Yeah, how much, or which dealer did you score them from?
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Old 06-01-2008, 08:39 PM   #15
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what about the width of the new ones? do they flop around side to side in the head??
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Old 06-02-2008, 03:42 AM   #16
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Default Re: (prettylew)
Very interesting. Thank you for sharing CC.
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Old 06-02-2008, 10:00 AM   #17
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Default Re: *NEW* B-Series LMA Info (Combustion Contraption)
Cool New information! Tricky Honda for changing parts on you B-series folk.

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Old 06-02-2008, 10:12 AM   #18
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Default Re: *NEW* B-Series LMA Info (96Spec Ek)
Quote:
Originally Posted by 96Spec Ek
Very interesting. I am curious to see how they will work. How much are they compared to the old lma's? I need to pick some up as soon as my head is back from NRGTech.

EDIT.....

$22.24 each at hondapartsdeals.com
http://www.hondapartsdeals.com...8&y=7

If anyone here can beat that price let me know.


Modified by 96Spec Ek at 12:26 AM 6/2/2008


Modified by 96Spec Ek at 12:27 AM 6/2/2008
$21.09 each at Majestic Honda assuming they are the newer style. Not sure, just looked them up for a 2000 Si.
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Old 06-02-2008, 11:31 AM   #19
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Default Re: *NEW* B-Series LMA Info (EKhatch)
$22 each? That's alot of coin.

Time to break out the CAD drawing board.
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Old 06-02-2008, 01:53 PM   #20
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Default Re: *NEW* B-Series LMA Info (Master of the Universe)
Quote:
Originally Posted by Master of the Universe
$22 each? That's alot of coin.

Time to break out the CAD drawing board.
hell to the yea
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Quote:
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Old 06-03-2008, 09:47 AM   #21
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Default Re: *NEW* B-Series LMA Info (prettylew)
Isn't $22.00 still cheaper than the type r lma's?!?
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Old 06-03-2008, 09:57 AM   #22
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Default Re: *NEW* B-Series LMA Info (4GE4YA)
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Isn't $22.00 still cheaper than the type r lma's?!?
Yeah I agree, they are still cheaper then the ITRs LMA going for $34-39 a pop
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Old 06-03-2008, 02:59 PM   #23
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damn, good find...
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Old 06-03-2008, 04:18 PM   #24
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Default Re: *NEW* B-Series LMA Info (fastlifemotorsports)
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Yeah I agree, they are still cheaper then the ITRs LMA going for $34-39 a pop
ya. in comparison, that's a good price. same as the older prelude's cost


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Old 06-03-2008, 04:36 PM   #25
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Default Re: *NEW* B-Series LMA Info (Brick Top)
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ya. in comparison, that's a good price. same as the prelude's cost
Expensive when compared to $7 cost for the S2000 and K-Series LMA's.
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