Hey fellahs,
I have a 1995 Integra LS. I want to do a complete GSR swap into it ( https://passwordjdm.com/index....swaps ) probably using that swap. Yes, I've searched but I haven't found anything useful.
I want to know:

What is needed to do this swap?
What wiring changes/mods will need to be made?
Will the LS tranny work on a GSR block?
Will an LS header work on a GSR block?
Are the Intake Manifolds positioned the same or will i need a new intake?
Anything I should know?

Thanks In Advance fellahs!

 

you're going to have to use the gsr intake mani, or a mani made for the gsr... because LS and vtecs dont have the same bolt pattern. the exhaust mani/header or w/e you have... ls or not will bolt up. the tranny will bolt up, but i'd recommend the gsr tranny, thats part of the reason the gsr is quicker. wiring wise, you'll need an obd1 p72, use your stock harness... wire the vtec solenoid, knock sensor, oil pres. safty switch, and the secondary control outside of the harness.... everything else will be really strait forward and bolt right in. you'll need a pinout for a p72 to do the wiring outside the harness.

 

for that answer! The only other thing I can add is take your time. Unless you are the Honda "MASTAH" then don't think that you can do the swap in one weekend. You'll need a ride for a week or two.

The wiring was the most difficult part to me. So I had a shop do it. They charged me $80 to run all four wires. Although I'm an electrical dufuss.

Get on http://www.team-integra.net if you haven't already. I've made a few posts about GS-R in LS and whatnot.

And looking at that engine, it looks like they give you the intake manifold as well as the exhaust manifold. Use those.

 

so you guys don't recommend using the gsr harness? i think i saw somewhere that said i'm gonna need a GSR cluster...i didn't know there was any difference. Any truth to that?

 

I just got done putting a gsr swap into my 97 RS integra. You need to use the gsr harness. You have to wire those extra wires in too. You would want a GSR cluster bc the redline is 8k on gsr's as opposed to the 7k on ls's. Mine was a fairly simple swap. I also had someone else wire in my vtec and knock sensor. I didnt want to deal with it. I had to get the conversion for obd2 to obd1 harness. Also your exhaust on your ls wont work unless you take it to a shop and they can weld some extra piping in for you.

 

what's the difference in the exhaust?

 

Well, that depends on what you mean by the GS-R harness. You do NOT need to pull the entire harness out of the engine bay. The harness that is directly connected to the engine you need, but you can just plug into the LS harness and it works fine (after you run the four wires mentioned earlier).

You don't want to pull out the entire harness unless you want to take out your entire dash and a LOT of crap in the engine bay. Not worth it. Definetely not worth it.

You will need a GS-R gauge cluster because of the higher redline.

 

does anyone have a link to a guide or an faq on hybrids?

 

ok, since its gonna be a jdm motor, its a lot cleaner setup if you have an access to a usdm harness- just the motor side, you dont need to mess w/ the wires going to the ecu. BUT if you choose to use the harness that comes w/ the swap, thats ok too.. you just have to extend some wires.

exhaust= if you want to use the LS' exhaust sytem temporarily, everything bolts up to the gsr motor, from header to the muffler... i did this swap just days ago and im still using my RS entire exhaust system.

 

it isn't a stock exhaust. currently, the car is turbo (still considering whether or not to keep turbo or go all-motor), i have a 3" dp, turbo manifold, magnaflow cat, apex-i n1 exhaust. i'm wondering if the turbo header will fit.

 

I swapped and went turbo at the same time. Much easier to do stuff like the intake manifold. The main change was the skunk2 manifold which brought the throttle cable and intake pipe to the same level as the LS. Not sure about the Edelbrock but they both ditch the secondaries. I think the exhaust ports are the same so you can probably keep the manifold.

And if you are going to do a P28 or P72 OBD1 (conversion or not) you're going to ditch the knock so all you'll need to wire is the two vtec wires on the passanger tower.

Gauge cluster needs to be replaced. It will go past the 7k rpm but it is not accurate. I'm still using the old one and it's way off.

 

you dont need a guage cluster unless you just want a tach that reads past 8,000rpm. the LS reads to 8,000 and thats it... so it'll work. the turbo mani will bolt right up and everything will go together fine. the only thing that might be kinda wierd is dealing with the stupid dual runner gsr intake mani... i'd really recommend getting an aftermarket intake mani that has 1 set of runners... even though some people say theres slight power loss down low... its way easier to deal with when trying to read a vacum diagram.