tinmann55

iTrader: (1)

In the middle of my swap, and at a crossroad on what intake system to use. Orignal plan was to use the SE induction and ecu on the S5 block. I have a complete S5 induction system off a spare S5 motor but did not have the harness or ecu. Digging through the closet last night looking for parts and found a box marked S5 ecu and harness!Did a long search this morning and found alot of turboll swap threads, knowing the electrics would be similar, but alot of them dead. So i have a few questions before i take the leap. Is the engine harness stand alone on the S5 or will i have to connect it to the SE drivers side harness ,and if so any links to a write up would be appreciated. 2nd the OMP on the SE front cover is run off a rod, while the S5 is electronic and will not bolt up to the SE cover anyway. The only options i see besides premix which i do not want to do is Rotary Avaitons adapter setup.Any other options out there? 3rd if this is going to work ok ,can i use the SE injectors as my primary injectors or are they low impedance?

j9fd3s

iTrader: (3)

s5 na and s5 t2 harnesses and ecu's are wired exactly the same except the knock sensor/boost control is 6 port and vdi.

the FC runs the main engine harness plus on the body harness it gets its powers, grounds, and IGNITION.

i have seen people run an FC intake with the gsl-se ecu electronics, so that is an option too.

bshusted

iTrader: (1)

If you're gonna run the S5 electronics, you'll have to run the electronic OMP. I just finished wiring up my S5 NA swap. Granted it hasn't run yet, it didn't seem too bad figuring out what wires are what.

tinmann55

iTrader: (1)

If you swapped into a FB,and you are using the electronic OMP,care to share how you managed to run the electronic OMP on you SE or FB front cover?

bshusted

iTrader: (1)

I used the S5 front cover. Since I swapped the FC sub frame at the same time as the engine swap, the engine mounts were ready to go. I don't know how pissed the computer would be if it didn't have the input from the OMP. I remember somewhere back a person/company was trying to build a circuit to fool the computer into thinking the OMP was there, but not sure on it.

j9fd3s

iTrader: (3)

there are a few options here. i have seen people weld up front mounts onto the s5 cover, which is a lot of work! also you can plug the metering pump in to the ecu, and just bolt it to the fender or something.

the best option, if running the s5 ecu, is to go rtek, as you dont have to run the metering pump at all!

in case you are wondering the electronic metering pump is run the same way as the drive by wire throttles are in newer cars, the ecu runs the stepper motor, and then has a position sensor, so it knows where the pump is. the stock FC ecu uses a "map" for the metering pump, so with certain rpms and loads it expects certain resistances.

82transam

iTrader: (18)

Since you are running a NA engine then as j9fd3s said an RTek would be the best thing to do (they don't have them for S5 T2's yet as far as I know or I would be running one on mine) as you can eliminate the omp as well as tune for more power.
As for my setup I have the re-speed rack and pinion which is front steer leaving plenty of room to make a center iron mount (so it mounts like it would in a FC) Took a while to make them work, but its held up nicely so far.
As for your wiring question you will need to make a small harness to run the coils, main relay, fuel pump resistor/injector relay as well as the circuit opening relay. The engine's harness is just plug and play basically. Good luck!

tinmann55

iTrader: (1)

I do have a FC subframe sitting in the parts trailer, sounds like alot of work Just to keep the OMP happy. I think it gets limp mode pissed Thanks for the input! i will do a search on the sub frame swap bui i am in a hurry and want my dd back

tinmann55

iTrader: (1)

I must be spending to much time in the shop... never heard of this retek! Just did a search, that's the ticket $120. Then i can keep the se mechanical pump and just wire it open,or better yet add the RA adapter and feed it 2 cycle oil continously. Thanks

j9fd3s

iTrader: (3)

actually that might be another option, RA might make an adaptor to put the s5 metering pump on the early cover, only real difference is the bolt pattern anyways

tinmann55

iTrader: (1)

I'll call them tomorrow and see what they say.

82transam

iTrader: (18)

You also would get rack and pinion along with 5 lug and bigger brakes. The only issue is the fact that its a bit wider than the FB setup....

Hecubus84

iTrader: (1)

Rtek has a chip for the N350 ecus that allows removal of the OMP without having the ecu go into limp mode.

http://www.pocketlogger.com/index.ph...age=1&ecu=S5NA

With that I believe you can run your GSLSE front cover in conjunction with a S4 na TB and a custom OMP rod.

tinmann55

iTrader: (1)

Well yes thats an easy way to go. but the idea was to run the S5 complete intake system for the power gain and BECAUSE i have the S5 harness and ECU.

I have emailed the sub contrator that does RA adaptors for the omp . i asked him to convert one of the electronic adapters to mount to the SE front cover. He has already emailed me back,saying give him a few days, so it sounds like he is considering it. I also put in a plug for the club saying alot of these older motors are being replaced by newer S5 motors as they become avaiable and he could probalbly sell enough of them to make it worth his time,as it is the easiest way to mount one with the SE/ FB front cover.

82transam

iTrader: (18)

If he were to make that, there would be a big market for them I think. Let us know what he says.

tinmann55

iTrader: (1)

Well good news, he is willing to make them and the bad he quoted me $165 shipped,for those who haven't been on Rotary Avation's web site the electronic adapter is around $88. But since you do not have to buy the Retek $120, i think it is worth it to be able to use the stock ecu and the ability to burn 2 cycle instead of motor oil for lubrication,and keep the electronic omp. I just spent over an hour trying to remove the S5 auxilary port shafts out of the lim and i have a heated parts washer! One came out but i broke the head off the other one ,because it was frozen in there! I realize it is 20 years old but i think if the motor had been lubed with 2 cycle oil it would have never seized up. He said one bolt hole on the omp had to be slotted but other than that is was bolt up with all bolts,o rings and washer included in the price. 2 to 3 week wait time so i think i will be getting the first prototype.One other negative, after eyeballing the se water pump and the S5 omp it looks like the only way it will work, is using the S5 water pump to gain enough clearance. I would like to keep my power steering and Ac so there might have to be some mixing of pulleys to pull it off.

82transam

iTrader: (18)

Awesome! That price is not that bad considering there are few other ways to use a S5 engine and retain the omp without a lot of custom work. Let us know how it looks when you get it, I might have to pick one up at some point for the next swap project....