can someone please tell me the pros and cons of having either one. I know for sure im going to swap my ek soon from the y7 to a b series, i dont want vtec tho i wanna go boost, is there a difference in these to LS engines? or is it just the years?

 

if you have ek, go b18b1 from year 96-2001 so you wont' have to convert everything to obd1.

 

so is there anything else different between these? other than the on board diagnostics

 

what do you mean you dont want vtec you want boost??? I hope you dont mean you want to go turbo so you think ls is better do you? Or do you just want to go LS turbo for dif. reasons

 

I believe the heads are different, as well as the cams. The B makes 140hp while the A makes 130. From my experience, the A is slightly more torquey/midrange while the B makes more hp higher up. I went with the B for my hatch and love it.

 

They are pretty much the same, i dont see why it would matter, especially if its going to be boosted, you will need to convert to obd1 anyways, i like the b18b1 just because they probably have less miles

b18a1

1992-1993 USDM Acura Integra RS/LS/GS
Displacement: 1834 cm³
Compression: 9.2:1
Power: 140 hp @ 6300rpm
Torque: 126 lb/ft @ 5000rpm
Redline: 6500 rpm
Bore: 81.0 mm
Stroke: 89.0 mm
Specific output: 76.3 hp/liter


b18b1

1994-2001 USDM Acura Integra RS/LS/GS/SE
Displacement: 1834 cm³
Compression: 9.2:1
Power: 142 hp @ 6300rpm
Torque: 127 lb/ft @ 5200rpm
Redline: 6800 rpm
Bore: 81.0 mm
Stroke: 89.0 mm
Specific output: 77.4hp/liter


check this thread out also
https://honda-tech.com/zerothread?id=1323059


Modified by kuja396 at 3:58 PM 8/28/2008

 

ive driven my friends 93 gs and my 01 ls teg definitely has more torque even tho his GS has the shorter LS tranny. b18b1 definitely

valve cover looks better too

 

true you will need to convert to obd1, but that's just the harness conversion, i'm talking about dealing it with alternator, distributor, etc since it's an ek civic, you can't use obd1 engine harness.

 

You don't have to convert OBD1. There are plenty of OBD2 B18B1s out there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TOO MUCH TORQUE &raquo;</TD></TR><TR><TD CLASS="quote">ive driven my friends 93 gs and my 01 ls teg definitely has more torque even tho his GS has the shorter LS tranny. b18b1 definitely

valve cover looks better too</TD></TR></TABLE>

Ls trannys are the longest b series tranny you can get

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JohnnyWash1 &raquo;</TD></TR><TR><TD CLASS="quote">You don't have to convert OBD1. There are plenty of OBD2 B18B1s out there.</TD></TR></TABLE>

You do if its boosted.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lilo_goki &raquo;</TD></TR><TR><TD CLASS="quote">true you will need to convert to obd1, but that's just the harness conversion, i'm talking about dealing it with alternator, distributor, etc since it's an ek civic, you can't use obd1 engine harness.</TD></TR></TABLE>

I see you point

 

The oldest a1 heads flow significantly less than the later b1 heads. Anything after 93, I believe, is the same.

A1 also has a different crank pulley...ps pump is different on the a1.

Other than that, theyre essentially the exact same thing.

 

i was just wondering because at Battle of the Imports here in seattle, a purple EK won the with a stock b18A1 boosted, he hit 12's . I asked him why the B18A1 and he said it was better, he didnt explain his reasoning.

 

I seem to recall people saying the B18A1 crank is stronger, thats all I can think of.

 

A vtec head will flow better than the ls heads.