i understand that the 91 LS is a obd0....this effects the ECU....if i wanted to swap in a newer engine i would have to do a ecu harness conversion...also could i do a conversion so i can swap an newer ECU from like a 1994 or 95 ls ecu to gain that 12 HP back....??

 

IMO, Yes, if you swap the engine, you will need the harness that goes with it and the ECU.

 

i know this...my main question was can i get an ECU for the engine now to get that lost HP back...

 

Ah, sorry, didn't read that as 2 separate questions. Unfortunately, I can't answer whether or not there is a simple conversion to allow you to use a different ECU & distributor, etc... to account for the difference in power.

 

No.
The ECU is not the sole restriction.
You will not gain power by swapping the ECU alone.. and it is not a plug-n-play solution.

The reduced horsepower rating of the 2nd Gen non-VTEC Integra is due primarily to the less agressive cams and marginally smaller valves used in the B18A1.

If you are considering a naturally-aspirated build for your Integra, save your money and do one of three things.
a) Sell your LS and buy a DC2 Integra GSR.
b) Build your B18A1 block in preparation for a VTEC head transplant
c) Swap in either a B18C1, H22A2 or if money is no object, a K20A.

 

its just my DD not trying to make it a fast car..i hust thought i could get some more HP threw the ECU thanks for the information...

 

So who knows what the differences between the 90-91 and the 92-93 B18a1 are? I noticed that peak torque is the same (but comes at a lower RPM), but peak HP is different - 130 vs 140?

*edit - the only info I could find indicated different cams with higher lift and longer duration on the 92-93 cams. If you were going to swap cams though, aftermarket is definitely going to give you more of everything. Other than the fact that stock cams might be cheaper, I don't see why anyone wouldn't just go aftermarket.

 

Any cam worth buying for the B18A1 is going to required upgraded springs and retainers.. so that's at least $800 right there. Add another $100 for cam gears and $100 for dyno time to dial them in.

By that time, you're looking at $1000 for 12-16 hp. And that figure assumes you've already ponied up the dinero for an exhaust header, intake and cat-back.

And if you're in a state that follows CA smog laws, the whole point is moot... because there are no CARB-certified cams for the B18A1.

If you found a set of 93 ls cams for free and they were in good shape, you could certainly try... but IMO, the B18A1 is not a stellar candidate for a naturally-aspirated build.

 

if you want to go n/a do a ls convo, still uses the b18a1 platform, w/ b16 head or gsr head if you can find it, more aggressive cams, a set of new gears and a dyno tune, you should be fine and not have to worry, seeing that money is no option of course

 

You mean an LS-VTEC right?