1.8L XT into 1.8L Loyale

[SubaruJawn]

Before i attempt it i'd like to know how hard it would be to put in a XT engine with the multiport F.I in to a Loyale ?

 

is as easy as changing the engine or is their some modification needed ?

if so what mods ?

[joostvdw]

loyales never got the MPFI engine, so you would need the engine harnass from the XT and the ECU from the XT.

 

so no, not as easy as an engine swap, but absolutely doable if you're not afraid of wires

 

if it's worth it, is up to you

[SubaruJawn]

loyales never got the MPFI engine, so you would need the engine harnass from the XT and the ECU from the XT.

 

so no, not as easy as an engine swap, but absolutely doable if you're not afraid of wires

 

if it's worth it, is up to you

doesnt sound easy at all

[idosubaru]

yeah john i don't think this is a good fit. it is a huge job for you and something you've never done before. even more importantly it would be a ton of effort for hardly any increases. it would a little bit but it would still be waaay slower than your XT6 which you're not satisfied with. so - lots of hours of work, very little increase and way slower than a car you already have and aren't satisfied with - doesn't sound like a good fit.

 

what you would need to do if you were really serious about this is to compare the wiring harnesses. i wouldn't be surprised if the MPFI and SPFI were fairly close and the ECU's probably have the similar connectors. if that's the case you might be able to repin the existing connectors??

 

if you want something fast, don't try to start with something slow, that just doesn't make sense. it's like going to the plumber when you're having a heart attack. in your position it is better to not try to go fast at all.

[SubaruJawn]

yeah john i don't think this is a good fit. it is a huge job for you and something you've never done before. even more importantly it would be a ton of effort for hardly any increases. it would a little bit but it would still be waaay slower than your XT6 which you're not satisfied with. so - lots of hours of work, very little increase and way slower than a car you already have and aren't satisfied with - doesn't sound like a good fit.

 

what you would need to do if you were really serious about this is to compare the wiring harnesses. i wouldn't be surprised if the MPFI and SPFI were fairly close and the ECU's probably have the similar connectors. if that's the case it might not be all that terribly hard to repin the existing connectors. i bet some things like MAF, TPS, IAC, ASV are all the same, so much of it is done. but...still a good bit of wiring to look at though. and in reality you wouldn't even need to pull the motor - you could just swap the heads and intake and go from there.

 

if you want something fast, don't try to start with something slow, that just doesn't make sense. it's like going to the plumber when you're having a heart attack. in your position it is better to not try to go fast at all.

i know gary. i thaught it could be as simple as changing the intake. since its nt that easy. i'm not gonna atempt it. after all that was said. i figured all that

[Gloyale]

 

i wouldn't be surprised if the MPFI and SPFI were fairly close and the ECU's probably have the similar connectors. if that's the case it might not be all that terribly hard to repin the existing connectors. i bet some things like MAF, TPS, IAC, ASV are all the same, so much of it is done.

 

 

Actually, none of that stuff is the same. Plus, if he used a Spider intake XT motor(only one worth it) that would add even more complexity.

 

Wait, actually the TPS plug for the SPFI has four pins, like a spider intake (87 1/2+)XT.

 

Ok, so 1 thing.

 

 

 

Best bet for that conversion is to get the harness from a 87+ Turbo GL or GL-10

 

It's an MPFI harness that will fit into the Loyale easily.

 

Or find a rare 85 non-turbo 2wd GL-10 with MPFI. Ditched in 86 for SPFI

[idosubaru]

Actually, none of that stuff is the same.

gotcha, i'll edit that so as not to confuse anyone. i meant to say the wiring might be the same - like the connectors at the ECU might use the same wires - so swap ECU then make the harness fit? no matter, it's a bad idea any way around.