PlaguedSoldier

so i have an 88 vert n/a and a JDM 13B-T 2 S5 ENGINE SPECS: Complete Motor - UNCUT Wiring Harness - Block - Head - Intake Manifold - Exhaust Manifold - Sensors - Fuel Rail - Injectors - Throttle Body - Alternator - Distributor - Starter - Ignition Wires - Pulleys - Turbo Manifold - Turbocharger - A/C Compressor* - Power Steering Pump* 5SPD TRANSMISSION - Factory Clutch & Flywheel 5SPD ECU (ENGINE COMPUTER) INTERCOOLER. does that just bolt right up no probs? ive heard the exhaust diameter is different so im ready to get an rb exhaust tho if thats true. what else do i need to worry about? (it cant be that easy) i know there are prolly other post about this but im on my phone so i cant really search that well

RotaryRocket88

iTrader: (7)

No, it doesn't "bolt up". You should find yourself a series 4 engine to save yourself some major headaches. Turbo swap info is in the FAQ.

RRTEC

iTrader: (13)

Wow.. Yeah you are in for it.

I have done it before, you have to rewire just about everything. The s5 harness is worthless to you, you will need to remove the emissions to simplify things. Buy an s4 turbo harness, you can use your stock ECU, you will need a stock s4 t2 throttle body.... lots of work..

Or you can go standalone and really complicate things.. (some will say make it easier)

LunchboxCritter

iTrader: (9)

You could sell your S5 swap and buy an S4 swap. It will most likely make your life a little easier.

I have not done that exact swap, but from what I have read you can put the S5 in there if you delete the emissions, and swap all of the sensors with S4 ones and use an S4 TII ECU.

You are going to want a TII rear end and half shafts also, The TII driveshaft will not bolt up to the NA differential. Probably a good idea to install 5 lug hubs if you have 4 lug hubs.

PlaguedSoldier

thx you guys

TrboSpdAnt

iTrader: (5)

If you want EASIER, go with a different setup... If you want something to be proud of, find yourself the ECU matching the harness (JDM S5 Tii) and go from there.

Wither way, you're going to be yanking your current engine, trans, ECU and harness (DON'T CUT ANYTHING!) and hard-swapping it right in.

FTMP, it'll work out fine, as long as all of your electronics are same series. numbered (like 'N370' - S5 Tii) or such.

After you pull it off, not only can your sick it in people's eyes, but you can also sell off your S4 as a complete, running, package and recoup expense for your JDM nifty-ness!

mxrider914

iTrader: (3)

I'm just finishing up putting an s5 t2 in my s4 n/a. It's a lot of work and would be so much easier to just get an s4 t2 motor. With that said though if you have the patience it can be done. Just take your time and do lots of research to make sure it's done right.

Your best bet if you keep the s5 would be to get an s4 t2 ecu and use your n/a harness. Then just swap out the TB and injectors with s4 parts. From what I understand you basically want the ecu to think it's an s4 engine even though it's not.

TrboSpdAnt

iTrader: (5)

Thanks for the positive agreement, MXRider!

As far as ease of operation, if he acquired the JDM S5 Tii ECU, it'd be all PnP, from there (that's what I've done, minus I STARTED with a JDM S5 Na and went to JDM S5 Tii).

Anything can be accomplished via 3 simple things:

Time, money, patience.

Alas, you can only choose one (an 'Ininite variable' is not an option).

87 t-66

iTrader: (133)

the JDM S5 ECU would definitely NOT make it "all PnP from there". Also, there is no such thing as a JDM S5 NA... or a JDM S4 NA for that matter.

TrboSpdAnt

iTrader: (5)

So all S5s in Japan were turbo?

If hes got ALL JDM components, including harness and acquired ECU, why would it not be PnP?

I thought the original post said he HAD the JDM 13B-T (meaning they made one WITHOUT the 'T') as well it's uncut harness.

Of course... That could ALSO read that his CURRENT harness (88) is uncut.

mxrider914

iTrader: (3)

Pretty sure all fc's in Japan were turbo. If he got an s5 ecu, wheather it was jdm or usdm, the interior harness wouldn't plug in. I'm not familiar with the jdm motors but if he got the regular usdm s4 t2 ecu, used his n/a harness and got s4 electronics, wouldn't he be good to go?

All I ended up buying for mine was the s4 TB. Since I already had the s5 injectors i just got pigtails for them and wired them to my harness.It'd be easier to get the s4 injectors, but would also cost more if he already has the s5's.

TrboSpdAnt

iTrader: (5)

I think this requires some clarification as to whether he has an S5 ECU (to accompany that JDM engine, of his), or not. No way would the S4 harness work with the S5 ECU - too many pins out of sync.

Mine worked out

It's either re-wire stuff or read the FAQ. (starting by searching the number on the Boost-reference sensor (N370, or such)).

87 t-66

iTrader: (133)

i dont know whether to try and explain everything to you or just move on. you need to keep all wiring within the same series for the easiest install. trying to use an s5 ecu, on an s5 motor, in an s4 car is a headache. i dont know what you are trying to say/explain, but it doesn't make sense. the easiest way to do this would be to buy a s4 motor, with a s4 engine harness/ecu/afm/map/tps, etc, and put it into a s4 car. or vice versa with s5 stuff.

TrboSpdAnt

iTrader: (5)

I do believe I said that.... Ref: Post # 6.

As far as the S5 > S5 in an S4 is irrelevant. One side is engine, trans, ECU and harness and the other is merely the chassis.

If you took both an S4 and an S5 roller, it wouldn't matter WHICH one you put in which, since they'll BOTH accept either engine, trans, Harness and ECU combination.

PlaguedSoldier: Just make sure all of your required components (Engine, Trans comp, ECU and harness are the same series (S5 Tii). As long as those are consistent, the body/ chassis will fall in line, since it doesn't matter WHAT series engine combo gets implanted in it, as far as the electronics go.

RotaryRocket88

iTrader: (7)

You're ignoring the main issue with trying to stick an S5 ECU and S5 EM harness into an S4 car: making it mate to the Front harness. Harness junctions FEM-01 and FEM-02 (as in Front to EMissions harness) will have to be cut off and rearranged to get the correct sequence. And the plug from the front harness that normally plugs directly into the ECU? Well now it won't fit because the plug shape is wrong. An S5 plug will have to be sourced, and all the wires will have to be spliced into it. This is why it is not at all plug n' play. It can be done of course, but that's way too much hacking up of the harnesses for my liking. Using all S4 electronics & wiring or just starting with an S4 engine to begin with are much simpler routes to go. The wiring changes needed to put an S4 TII engine in my S4 convertible literally took about 10 minutes. That is plug n' play.

Something else to consider is a J-spec EM harness is too short for a LHD car. You'll have to extend the whole thing to reach. The wiper harness is also not part of the J-spec EM harness, so you'll have to separate it out from your existing EM harness to keep your wipers functional.

There are more little issues to deal with that will come up in a search.

TrboSpdAnt

iTrader: (5)

I assumed we were talking about the FULL harness, but otherwise, I certainly agree...

I also didn't thing about the LHD > RHD distances...

+1 about the search.

RotaryRocket88

iTrader: (7)

If by FULL harness you mean changing the front harness out as well, that'll open up a new can of worms. None of the smaller harnesses will connect properly to it (engine harness, rear harness, instrument cluster harness, etc...), and some electronics all around the car won't connect either (switches, relays, etc...). Pretty much unless you strip the car of all S4 wiring and electronics, then replace it with everything S5, you'll always end up having to do a lot of rewiring.

stevensimon

iTrader: (11)

no doubt.

s5 and s4 harness' are not interchangeable. you can not just get an s5 harness and compy and throw it in an s4. there are components in the s4 engine harness that the s5 engine harness doesnt have and vice versa.

easiest way to make an s5 motor work in an s4 is to get the complete s5 wiring system. body harness engine harness.. everything and swap over.

also how can a person that claimed to put a jdm s5 na motor in their car be taken seriously?
i expected your join date to be 10' or 11' not 05'

2slow4stock

iTrader: (18)

TrboSpdAnt stop spreading bad information. Also you make no sense? You need to search search search.

OP, if you have decent mechanic skills just keep the motor. You have many options

1) run the motor with s4 tii ecu and no omp with s4 electronics so you have to premix, but everything will work out easier.

2) Buy s4 front cover and still s4 electronics and boom you have a s5 motor ready to be swapped into s4 with manual omp.

3)sell motor buy a s4 13bt

WHEN YOU DO an N/A to TII swap you use the N/A harness and if you did your research N374 ecu sucks. (J-spec ecu)

TrboSpdAnt

iTrader: (5)

RotoryRocket88: That was my suggestion - stripping the S4 everything out and replacing it w/ new electronics. That would make the most sense, since we've already established that trying to hybrid the series' electronics isn't a viable option.

My reference of N370 was purely as a reference, since I didn't have the correct number, on hand - as supplied in post# 19.

Perhaps I should clarify on what I started with, since there seems to be a bit of confusion: My S5 had a JDM S5 engine in it (this is the important part, so read lightly), that was STRIPPED TO NA.

Since I'm not aware of them ever producing an S5 convertible, in the US that was turbo, someone swapped OUT the USDM S5 NA and replaced it with the JDM, but didn't replace ANY of the JDM ****, rendering it useless to boost...

If it's not turbo, it's NA.

They ran (as evidenced by the ECU and BRS numbers) S5 Tii electronics and left it there.
Currently it has the S5 Tii electronics, and is turbo, with a funky hybrid of both USDM and JDM bits (UIM, I've been told, is still JDM) and sits as Project NAT 45 (NA-T, S4.5). Since this was a "some [re-]assembly required" project, going through it has been a nice uphill battle, but since my fiance and I have 3 vehicles, it's ok.... The vert can sit in my garage, and have the time taken. Not like another WEEK is going to kill it from September!

The thread wasn't discussing what could or COULD NOT be done, but how much of a hemorrhoid is is/ was going to be.

As far as my join date, being forced to take a hiatus, courtesy of the Army usually has that effect. Getting deployed is USUALLY a good way of having to put off working on ANYTHING, that's your own.

Also, regarding when you do an NA > Turbo conversion/ swap, it makes/ made more sense to me to go with the turbo ECU, AFM, BRS, injectors, etc. If I'm swapping to turbo (which I have done) I'm not going to post reliability upon the NA components; I just assume do it the way that dictates functionality, not the "easy" way.

If you guys read RR88's post (ref #: 17) he explains it. You do it one way UNLESS you do it the other...

I chose the latter.

PlaguedSoldier: Read the link RotoryRocket88's signature. You'll be able to understand what he's talking about, better.

Everyone else, Click on the pic, in my sig and you'll see that I'm not talking out of my ***.

stevensimon

iTrader: (11)

whats the difference between usdm and jdm s5 4 port motors?
and who would take the time to put a 4 port motor in a car and not put the turbo on it? makes absolutely no sense.

also you have a lot more to worry about than just engine management and electronics. na diff cant handle any kind of abuse at stock turbo power levels. a lot of people say that they have had a rough go with the na trans behind a turbo motor too but when i did this swap i only broke diffs, trans was always ok..


but the bottom line here is: if you want a turbo car, start with a turbo car. by the time you buy all the correct parts, put time and effort into getting it to run right, you could have bought a well running t2 that works a lot better than your swap.

the vert is the only reason that i would want to swap a turbo motor into an na chassis car but the s5 na to s5 turbo motor swap is so much easier than s4 to s4 or s4 to s5..

TrboSpdAnt

iTrader: (5)

Amen to that.

And with those wise words, I bid you goodnight.

madazfiend/1

iTrader: (1)

dude it would be a lot easier to get an heltech or microtech.. i have done plenty of t11 swaps into first gens and it so much easier with a management system but its all on you .. good luck with your project and let us know the finished results

PlaguedSoldier

everything I listed is all s5.

PlaguedSoldier

JDM 13B-T 2 S5 ENGINE SPECS: Complete Motor - UNCUT Wiring Harness - Block - Head - Intake Manifold - Exhaust Manifold - Sensors - Fuel Rail - Injectors - Throttle Body - Alternator - Distributor - Starter - Ignition Wires - Pulleys - Turbo Manifold - Turbocharger - A/C Compressor* - Power Steering Pump* 5SPD TRANSMISSION - Factory Clutch & Flywheel 5SPD ECU (ENGINE COMPUTER) INTERCOOLER. thats all s5 stuff