I know the 90-91 LS blocks have 130 horse, the 92-93's have 140 and the 94+ come with 142. Do the horsepower difference come from the heads? I know they all come with the same compression pistons. I am asking because I have a 91 block but I mating it with a 95 head. Should I have the 130 horse or the 142? Just wondering what I'm working with. Thanks ahead for your imput.

 

Ive already discussed this, so try to search more. The difference in the power output is in the cams and the exhuast manifold. The extra 2 hp in the 94+ is in the ecu. Also, the intake cam on a 92-93 integra is BARELY more aggresive than the ones from the 94+.

 

just use a b20z more HP and Torque

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DavidTurbo &raquo;</TD></TR><TR><TD CLASS="quote">I know the 90-91 LS blocks have 130 horse, the 92-93's have 140 and the 94+ come with 142. Do the horsepower difference come from the heads? I know they all come with the same compression pistons. I am asking because I have a 91 block but I mating it with a 95 head. Should I have the 130 horse or the 142? Just wondering what I'm working with. Thanks ahead for your imput. </TD></TR></TABLE>

90-91 B18A rated at 130hp
92-93 B18A rated at 140hp (revised camshaft)
94' + B18B rated at 142hp (same cams as the 92-93 + revised intake manifold)
Exhaust manifold design never improved.
B20z cams have 3mm more lift on the intake side

 

Im really pretty sure that the exhuast manifold changed...acutally, i AM sure, the length is different, but i dont know if that affected hp much. So uunless your not completly 100% positive that the exhuast manifold didnt change in any other way besides the length, just let me have this one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quick 200k Mile Motor &raquo;</TD></TR><TR><TD CLASS="quote">

90-91 B18A rated at 130hp
92-93 B18A rated at 140hp (revised camshaft)
94' + B18B rated at 142hp (same cams as the 92-93 + revised intake manifold)
Exhaust manifold design never improved.
B20z cams have 3mm more lift on the intake side

</TD></TR></TABLE>
That's some info I had been wondering about ever since back when I had my 95 Integra LSSE.. man I miss that car!

 

Thats actually good news then, that means that I should have the 142 horse since I'm using the 91 block (should be all the same) and more importantly the 95 LS head which from what you guys are saying is where all the improvements and extra horsepower came from. thanks for the input guys!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DavidTurbo &raquo;</TD></TR><TR><TD CLASS="quote">Thats actually good news then, that means that I should have the 142 horse since I'm using the 91 block (should be all the same) and more importantly the 95 LS head which from what you guys are saying is where all the improvements and extra horsepower came from. thanks for the input guys! </TD></TR></TABLE>

keep in mind that 142 is just rated hp at the flywheel.
Greater than 127 hp at the wheels is rare, when you dyno it stock (no i/h/e).
Tuned i/h/e + ignition timing + cam gears can bring it near 140whp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quick 200k Mile Motor &raquo;</TD></TR><TR><TD CLASS="quote">

keep in mind that 142 is just rated hp at the flywheel.
Greater than 127 hp at the wheels is rare, when you dyno it stock (no i/h/e).
Tuned i/h/e + ignition timing + cam gears can bring it near 140whp. </TD></TR></TABLE>

This is my first time tuning a honda, can you give me some ideas and advice about timing, cam gears and anything else so I can try to get a few more horses. I have a fuel pressure regulator, cold air intake and a rear bolt on, no header though. I putting a new timing belt, water pump and head gasket. I will be doing this tomorrow, any help is greatly appreciated! Thanks alot