How can you tell if your motor is JDM?

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01-24-2006, 09:30 PM

jdmomar

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How can you tell if your motor is JDM?

Basically my question is how can you tell if your motor is JDM? My friend told me that all jdm motors have an "A" stamped on them over the eng code. Is this true? Is there any other way of verifying this?

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01-24-2006, 09:34 PM

T"u"Rtle

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Re: How can you tell if your motor is JDM? (jdmomar)

you can tell by looking at the Block and if there is a number after the letter than it is USDM and if there is no number then its JDM.

For example we all know the B18C5 to be the USDM Type R motor but in Japan it would just be the B18C

Or for another example the USDM B16A1, B16A2, B16A3 are all various generations of the B16 but in JAPAN the mtor would just be stamped B16A.

Hope this solves your problem.

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01-24-2006, 09:45 PM

Luserkid

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Re: How can you tell if your motor is JDM? (jdmomar)

Theres no number at the end of there codes.

exampe:

B16A
B18C

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01-24-2006, 09:48 PM

T"u"Rtle

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Re: How can you tell if your motor is JDM? (Luserkid)

isn't that exactly what I said one post up??

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01-24-2006, 09:49 PM

BlueIntegraBoy

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Re: How can you tell if your motor is JDM? (H22JDMEG)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22JDMEG »</TD></TR><TR><TD CLASS="quote">isn't that exactly what I said one post up??</TD></TR></TABLE>

Yup

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01-24-2006, 11:24 PM

SOL Food

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great minds think a like.

JDM guys must not like numbers.

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01-24-2006, 11:52 PM

SkankyEJ7

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Re: (MARSH)

well the main difference is the BUKAKKE that is always on the JDM motors

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01-24-2006, 11:55 PM

x93coupex

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Re: How can you tell if your motor is JDM? (jdmomar)

if its a motor you just bought you should be able to tell by the valve cover also the jdm one is different from the us one

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01-24-2006, 11:57 PM

SOL Food

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Re: How can you tell if your motor is JDM? (x93coupex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by x93coupex »</TD></TR><TR><TD CLASS="quote">if its a motor you just bought you should be able to tell by the valve cover also the jdm one is different from the us one</TD></TR></TABLE>

i was not aware of this...how so?

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01-25-2006, 12:00 AM

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x93coupex

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Re: How can you tell if your motor is JDM? (MARSH)

the jdm valve cover on b series the vtec is printed big and the dohc is small on the us version its opposite and on the jdm it says honda with a H and on the us one it say honda motor co. with no H

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01-25-2006, 12:04 AM

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x93coupex

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Re: How can you tell if your motor is JDM? (x93coupex)

^^^^someone correct me on this if i am wrong

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01-25-2006, 12:09 AM

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L8apex

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Re: How can you tell if your motor is JDM? (MARSH)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by x93coupex »</TD></TR><TR><TD CLASS="quote">the jdm valve cover on b series the vtec is printed big and the dohc is small on the us version its opposite and on the jdm it says honda with a H and on the us one it say honda motor co. with no H</TD></TR></TABLE>

Not quite. On my USDM B16A2 valve cover it says VTEC bigger than DOHC, with the H and it says HONDA. ON USDM Acura GSRs and ITRs, the DOHC is bigger than VTEC, and it says Honda Motor Co.

All JDM B-series valve covers look like the USDM B16A2 but may be red or black depending on model.

And to further complicate things, I think the old JDM EFs with the B16A had DOHC>VTEC and Honda Motor Co. like Acura B18s.

Either way, valve covers are interchangeable and the only true way to tell if it is JDM or USDM is by the casting on the block as someone else said.

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01-25-2006, 12:30 AM

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x93coupex

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Re: How can you tell if your motor is JDM? (L8apex)

didnt think of that thanx for correcting me

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02-01-2006, 09:58 AM

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DC2SIR-G

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Re: How can you tell if your motor is JDM? (x93coupex)

my JDM gsr motor valve cover is ******* nice!!!!

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02-01-2006, 10:00 AM

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Re: (98ekhx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22JDMEG »</TD></TR><TR><TD CLASS="quote">you can tell by looking at the Block and if there is a number after the letter than it is USDM and if there is no number then its JDM.

For example we all know the B18C5 to be the USDM Type R motor but in Japan it would just be the B18C

Or for another example the USDM B16A1, B16A2, B16A3 are all various generations of the B16 but in JAPAN the mtor would just be stamped B16A.

Hope this solves your problem.</TD></TR></TABLE>

nicely stated

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02-01-2006, 10:51 AM

#16

schpootypie

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Re: How can you tell if your motor is JDM? (H22JDMEG)

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02-01-2006, 11:13 AM

#17

Chong

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Re: How can you tell if your motor is JDM? (Luserkid)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid »</TD></TR><TR><TD CLASS="quote">Theres no number at the end of there codes.
</TD></TR></TABLE>

That pretty much sums it up. But there is the B16A4 (Which i learnt of not too long ago on a thread here on HT) which is JDM. It comes in the SiR-II or something.

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02-01-2006, 11:14 AM

#18

Chong

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Re: How can you tell if your motor is JDM? (schpootypie)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by schpootypie »</TD></TR><TR><TD CLASS="quote">

So a JDM B18C is whats in a Japanese Type R? </TD></TR></TABLE>

Yes, but a variant of the B18C is also in the Japanese SiR-G. Same engine code however.

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02-01-2006, 12:46 PM

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93_cxEG

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Re: How can you tell if your motor is JDM? (jdmomar)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmomar »</TD></TR><TR><TD CLASS="quote">Basically my question is how can you tell if your motor is JDM? My friend told me that all jdm motors have an "A" stamped on them over the eng code. Is this true? Is there any other way of verifying this?</TD></TR></TABLE>

wat a dumbasss...there a thing call "SEARCH"..man do the work...lazy a$$

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02-01-2006, 01:06 PM

#20

DC2SIR-G

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Re: How can you tell if your motor is JDM? (93_cxEG)

why u wanna know anyways

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02-01-2006, 01:10 PM

#21

tsdenny

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Re: How can you tell if your motor is JDM? (schpootypie)

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02-01-2006, 01:23 PM

#22

LOLyouhavefakewheels

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Re: How can you tell if your motor is JDM? (void_accord)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by void_accord »</TD></TR><TR><TD CLASS="quote">what is the code for the jdm gsr</TD></TR></TABLE>

B18c is the code for the Si-R (GSR) and the Type-R

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02-02-2006, 10:34 AM

#23

schpootypie

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Re: How can you tell if your motor is JDM? (CivicB18C5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicB18C5 »</TD></TR><TR><TD CLASS="quote">

B18c is the code for the Si-R (GSR) and the Type-R
</TD></TR></TABLE>

Do they put down the same numbers?

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02-02-2006, 10:56 AM

#24

IntegraGuy16

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Re: How can you tell if your motor is JDM? (schpootypie)

jdm b18c type r 200hp
jdm b18c gsr 180hp

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02-02-2006, 11:11 AM

#25

. a d a m

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Re: How can you tell if your motor is JDM? (93_cxEG)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93_cxEG »</TD></TR><TR><TD CLASS="quote">

wat a dumbasss...there a thing call "SEARCH"..man do the work...lazy a$$</TD></TR></TABLE>

Way to go *** bandit

I'm so glad someone mentioned this over ten posts into the thread, after the question has already been kindly answered by numerous people.

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