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Old 01-10-2013, 03:38 PM   #1 (permalink)
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little monster - '91 Honda Civic Si
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91 civic si

OK, some of you guys may have seen my other car thread "The Joker"
Within the next week and 1/2 or so I will be buying a 1991 Honda civic si hatchback! While I know it is not the most fuel efficient vehicle, I came across it for less than $1000....

My dad's friend owns a wrecking yard and it was repossessed. So that's a big win for me!

I know a lot about the D series Honda engines, however I don't know much about the B series engines, other than they make a "lot" of power , at least compared to the other options Honda has.

This car does have a b-series in it, by looking at the picture he sent me, can any of you tell which engine it is?


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Old 01-10-2013, 08:09 PM   #2 (permalink)
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twitchy - '98 honda civic dx + sir + ls
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It could be a B18B (integra ls) as it does not have VTEC. But because it looks like factory engine mounts and not moved from original location I bet it is one of the ZC motors from the D series (early integra).
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Old 01-10-2013, 08:14 PM   #3 (permalink)
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There looks to be a sticker of some kind on the boss where the engine type stamp lives. Take another pic, just to the left of the exhaust manifold, further down. There's a flat boss on the engine case that should have a stamped engine type on it.

It's definitely a swap; the US-spec 91 Si came with the D16A6 motor originally, which is SOHC.

-soD
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Old 01-10-2013, 08:18 PM   #4 (permalink)
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Rusty crusty trusty - '94 Honda Civic Cx
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That's a dohc ls swap you could do a drop out and sell it for the car price most likely.
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Old 01-10-2013, 09:04 PM   #5 (permalink)
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little monster - '91 Honda Civic Si
Team Honda
90 day: 47.54 mpg (US)

Dory (AKA blue-fish) - '02 Honda Insight
Team Honda
90 day: 62.05 mpg (US)
Thanks: 9
Thanked 21 Times in 8 Posts
It was a Canadian car

I know it looks just like the b18 in the 96 integra
And if I'm not mistaken the zc valve covers don't have the horazontal lines on them
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Old 01-10-2013, 09:50 PM   #6 (permalink)
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Rusty crusty trusty - '94 Honda Civic Cx
90 day: 36.13 mpg (US)

Vx - '92 Honda Civic Vx
90 day: 49.97 mpg (US)
Thanks: 4
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[NJ] B18B1 long block for sale Ls motor
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Old 01-11-2013, 07:16 PM   #7 (permalink)
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Ah, the DOHC ZC appears to have raised areas fore-and-aft across its valve cover!



So yeah, I'm betting a B18. Possibly a B16? A look at the boss on the front side of the motor would tell.

-soD
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Old 01-11-2013, 07:38 PM   #8 (permalink)
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Join Date: Nov 2012
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little monster - '91 Honda Civic Si
Team Honda
90 day: 47.54 mpg (US)

Dory (AKA blue-fish) - '02 Honda Insight
Team Honda
90 day: 62.05 mpg (US)
Thanks: 9
Thanked 21 Times in 8 Posts
I am glad to know its not the zc... if it is the b 18 I plan on installing some adjustable can gears, chip the ecu and see how much mileage I can squeek out of this thing! The car is in elpaso.. if I get it I will be going down there next weekend! Hopefully
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Old 01-12-2013, 05:37 PM   #9 (permalink)
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twitchy - '98 honda civic dx + sir + ls
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not the B16 or B18C. Those have VTEC cast onto the valve cover and a cover over the spark plugs. It does look like a B block. I'm just surprised the mounts look original. I thought B blocks needed to custom mounts in that generation. Also looks to small to be the larger B20 or F blocks.

Probably a B18B from the 96+ Integra LS.
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Old 01-28-2013, 12:33 AM   #10 (permalink)
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Join Date: Nov 2012
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little monster - '91 Honda Civic Si
Team Honda
90 day: 47.54 mpg (US)

Dory (AKA blue-fish) - '02 Honda Insight
Team Honda
90 day: 62.05 mpg (US)
Thanks: 9
Thanked 21 Times in 8 Posts
Sorry, it took so long to get back on here! but i got the car for $1000! here it is.

I drove it home from Elpaso to Lubbock and got 27 mpg the first half of the trip. 31 the second half. (75-85mph then 50-65) It does have some issues... third gear is COMPLEEATLY gone... trans rebuild kit is $275. might slap in a higher final drive gear in it while Im in it.
It has a Hondata ecu
Skunk2 Pro intake manifold (factory throttle body)
4-2-1 header (should help low end torque)
It is a B18B1

HELP!!! I don't know what trans it has!!! the I.D. sticker is gone i know it is a cable trans. a y80 or s80 come factory on a b18b1, but there hydro... the YS1 is cable... but I am lost.










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