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Old 05-23-2008, 01:03 PM   #1
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Default b18a vs b18b

i was woundering if someone can help me what is the difference on a b18a and a b18b
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Old 05-23-2008, 01:53 PM   #2
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Default Re: (Jimmy)



My buddies 93 Ls never came with the B18b.
My cousin's 92 Ls also never came with the B18b.

I believe the B18b only came in the 94+ Integras.


Modified by Rickdrizzle at 3:04 PM 5/23/2008
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Old 05-23-2008, 01:59 PM   #3
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Default Re: b18a vs b18b (vegassinsation)

Very close, but Honda screwed us a little with funny naming conventions.

B18A - 90-91 RS/LS/GS - 130 HP, OBD0
B18A1 - 92-93 RS/LS/GS - 140 HP (due to higher lift intake cam), OBDI
B18B - 94+ RS/LS/GS - 140 HP (same intake cam as B18A1), OBDII (as of 96)

FYI, the valvetrain parts are the same between the B18A and B18B. Also, B18A ECU's (PR4's) have been successfully used with B18B's (P75's I think), although for max power a tune is required.
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Old 05-23-2008, 02:02 PM   #4
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Thanks for clearing that up.

I was ''questioning'' that information.. Cause none of my friends with Da tegs have either had B18B's.. either

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Old 05-23-2008, 02:05 PM   #5
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Default Re: b18a vs b18b (mc-integra111)

Quote:
Originally Posted by mc-integra111
Very close, but Honda screwed us a little with funny naming conventions.

B18A - 90-91 RS/LS/GS - 130 HP, OBD0
B18A1 - 92-93 RS/LS/GS - 140 HP (due to higher lift intake cam), OBDI
B18B - 94+ RS/LS/GS - 140 HP (same intake cam as B18A1), OBDII (as of 96)

FYI, the valvetrain parts are the same between the B18A and B18B. Also, B18A ECU's (PR4's) have been successfully used with B18B's (P75's I think), although for max power a tune is required.
*sigh*

90-91 Integras were also b18a1.

Don't ask me how I know.


Jesus Christ, almost everyone I know has each year of the Integras.
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Old 05-23-2008, 02:14 PM   #6
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Default Re: b18a vs b18b (Rickdrizzle)

Quote:
Originally Posted by Rickdrizzle
90-91 Integras were also b18a1
Do they have a 90-91 block? I have a B18A stamp on mine (no 1 after it). I guess that could have been removed by a previous owner though. Interesting. Normally Honda/Acura did a good job with their engine codes, but the early DA's seem to have new quirks pop up all the time.
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Old 05-23-2008, 02:18 PM   #7
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I don't know about the 90, but another of mine had a 91. It had B18A1 stamped on it.
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Old 05-23-2008, 02:20 PM   #8
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http://www.honda-tech.com/zerothread?id=967291
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Old 05-23-2008, 04:03 PM   #9
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90 has a b18a thats all and 91-93 a1
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Old 05-23-2008, 04:16 PM   #10
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Default Re: (bmwpride)

Quote:
Originally Posted by bmwpride
90 has a b18a thats all and 91-93 a1
Do you have proof to back this up? Or are you simply talking out of your ***.
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Old 05-23-2008, 05:42 PM   #11
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Default Re: b18a vs b18b (vegassinsation)

Quote:
Originally Posted by vegassinsation
i was woundering if someone can help me what is the difference on a b18a and a b18b
90-93 Integra RS, LS, LS SE, GS - B18A1
OBD-0 130hp 121lbs/torque
OBD-1 140hp 126lbs/torque

94-01 Integra RS, LS, LS SE, GS - B18B1
OBD-1 142hp 128lbs/torque
OBD-2a 142hp 128lbs/torque
OBD-2b 142hp 128lbs/torque
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Old 05-23-2008, 06:49 PM   #12
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Default Re: b18a vs b18b (inspiration)

Quote:
Originally Posted by inspiration

90-93 Integra RS, LS, LS SE, GS - B18A1
OBD-0 130hp 121lbs/torque
OBD-1 140hp 126lbs/torque

94-01 Integra RS, LS, LS SE, GS - B18B1
OBD-1 142hp 128lbs/torque
OBD-2a 142hp 128lbs/torque
OBD-2b 142hp 128lbs/torque

94-95 OBD1 --> i am not sure if this one has 142HP, oh well~
96-99 OBD2A
00-01 OBD2B
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Old 05-23-2008, 06:50 PM   #13
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Default Re: (bmwpride)

Quote:
Originally Posted by bmwpride
90 has a b18a thats all and 91-93 a1
My 90 integra has B18A1 stamped on it. Yes its the original motor.
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Old 05-23-2008, 11:55 PM   #14
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Default Re: b18a vs b18b (vegassinsation)

i have a 1990 integ with a b18b jdm...and it has so much power its crazy...i beleive it has more tourq then the b18a..
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Old 05-24-2008, 12:47 AM   #15
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Default Re: b18a vs b18b (outkast80)

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Originally Posted by outkast80
i have a 1990 integ with a b18b jdm...and it has so much power its crazy...i beleive it has more tourq then the b18a..
LOL, well that came from left field....
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Old 06-16-2008, 05:56 PM   #16
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Default Re: b18a vs b18b (mc-integra111)

Quote:
Originally Posted by mc-integra111
Very close, but Honda screwed us a little with funny naming conventions.

B18A - 90-91 RS/LS/GS - 130 HP, OBD0
B18A1 - 92-93 RS/LS/GS - 140 HP (due to higher lift intake cam), OBDI
B18B - 94+ RS/LS/GS - 140 HP (same intake cam as B18A1), OBDII (as of 96)

FYI, the valvetrain parts are the same between the B18A and B18B. Also, B18A ECU's (PR4's) have been successfully used with B18B's (P75's I think), although for max power a tune is required.
Question for you: I have a b18a1 swapped in to an ek hatch and it is currently running on a P2E ecu and I don't think that it is running very smoothly. Can I use an OBD2 P75 ecu with no issues?
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Old 06-24-2008, 09:18 AM   #17
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Does anyone know?
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