s5 engine dropped into a s4
#1
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s5 engine dropped into a s4
So I think I'm going to drop a s5 motor with all the smaller parts still connected around it including wiring harness, ECU, and other components including manifolds and what not into my s4.
I do have another s4 motor sitting around with all the stuff on the block, emissions and what not if I need to transfer anything from that onto my s5 block.
My question is what problems am I going to run into when I try to drop my s5 longblock (minus the transmission) into my s4?
O ya everything is N/A too...
Thanks!
-Jon
I do have another s4 motor sitting around with all the stuff on the block, emissions and what not if I need to transfer anything from that onto my s5 block.
My question is what problems am I going to run into when I try to drop my s5 longblock (minus the transmission) into my s4?
O ya everything is N/A too...
Thanks!
-Jon
#2
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Originally Posted by toastiepenguin
My question is what problems am I going to run into when I try to drop my s5 longblock (minus the transmission) into my s4?
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Ok that will be no problem, since i do have access to the whole engine harness and an s5 ECU. So that is it though nothing else will be a problem.
Thanks for the input
-Jon
Thanks for the input
-Jon
#4
Former Moderator. RIP Icemark.
I don't think you understood.
The S4 and S5 harnesses are not compatible.
They do not plug in together.
They don't even have the same plugs in most cases.
So if you use a S5 engine and engine harness and ECU in a S4 car, nothing will plug in.
You will need to customize the harness to make it work in a S4. You will need to re-pin plugs, move and add wires as well as run some wires.
The S4 and S5 harnesses are not compatible.
They do not plug in together.
They don't even have the same plugs in most cases.
So if you use a S5 engine and engine harness and ECU in a S4 car, nothing will plug in.
You will need to customize the harness to make it work in a S4. You will need to re-pin plugs, move and add wires as well as run some wires.
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Originally Posted by classicauto
You're best bet would be to drop the S5 block in and use all your S4 manifolds and wiring.......
Unless you're doing this simply for the VDI on the S5 then that will get it done.
Unless you're doing this simply for the VDI on the S5 then that will get it done.
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You'll need to rewire everything ... I think it's possible to re-use s4 wires but you'll need to fit the s5 connectors. You can also run with the s4 ecu with the s4 harness and the s4 front cover ... that's not hard to do. You take off some bolts and the main pulley nut and you replace the front cover.
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from what i hear there's some issues with me possibly dropping to torrington bearing, and theres an oil o ring that i have to **** with . . .
plus id like to have the 8k redline and the VDI/ air pump powered aux ports etc. . . i've already pulled the harness and the ecu.
plus id like to have the 8k redline and the VDI/ air pump powered aux ports etc. . . i've already pulled the harness and the ecu.
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The only writeup I've seen of this was done by LUCIU$ (a friend of HIGGI's I think), on this thread: https://www.rx7club.com/showthread.p...7&page=2&pp=15
It's do'able using the series five EM harness and matiing it with the S4 Front harness. Talking using the S5 ECU in a series four car.
If memory serves, LUCIU$ has done a couple of cars like that. Like I said *memory*.
It's do'able using the series five EM harness and matiing it with the S4 Front harness. Talking using the S5 ECU in a series four car.
If memory serves, LUCIU$ has done a couple of cars like that. Like I said *memory*.
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