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The mkiv Supra Owners Club

Fuse box advice please!


Crash Bandicoot

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I am near the stage of putting my engine in, one problem... The fuse box!

I am taking the engine from my manual NA-t and putting it in an aerotop that was an auto at some stage but I believe it has had a TT lump in before I bought it from Keron...

The aerotop fuse box looks totally different internally in comparison to my NA-t one.

Things I know:

The NA-t one has a sandalone fan unit running in,

The NA-t one has an extra grey box plugged in on the fuse board side,

The NA-t one has been sliced into a few times.

The aerotop one looks clean and uncut.

Ill put some pics up and any advice would be happily received :/

Cheers guys!

Edited by Crash Bandicoot (see edit history)
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I recently changed an NA one for a TT one both were autos. The only difference was TT had airbag connectors at the ends of the loom. And a trac fuse in the TT one. Are you just changing the fuse box? I found changing the whole loom quite easy. Do you have the fusebox lids as the diagrams should give you an idea. If it were me id use the clean uncut one

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There are a few things you need to factor in.

A) does the car have ABS? if so does the fusebox/bay loom you are going to use have ABS sensor connectors? These are under the wheel arches going to the sensors on the brakes obviously.

B) NA-T one has been modified...do you know exactly what has been done and where all wires need to go?

 

My advice use the unspliced one IF it has ABS connectors (if your car has ABS)

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The hardtop manual NA shell the engine came from had ABS.

The aerotop auto shell the engine is going into doesn't have ABS.

The wires that I disconnected from the fusebox when I took the engine out of the NA shell I have labelled,

It had a battery relocation kit, which is easy enough as its the big red wire to the underside of the fusebox.

It's had a mod for the standalone fan unit, which is the grey coloured relay that's on the NA picture with silver pen saying fan on it.

It has a couple other wires that I disconnected also... So I know where they go on the manual NA fusebox but I'm unsure where to connect them in with the auto aerotop fusebox.

How do you disconnect the wires from the fusebox? Is it a matter of pull them through from the back/wire side or do you push them through from the back/wire side to the front/relay/fused size?

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It looks like the large grey self timer relay has been added afterwards in place of the blue relay in aero top fuse board. From memory when I stripped down two fuse boards removing all wiring they are almost identical. The wires pull through the back. There is a cover strip under each fuse and relay. Take this off and using a small flat head, slide the cable out.

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I've now removed the entire front loom from the manual NA,

Nice easy job TBH, going to swap the whole lot over to the areotop.

when I've been checking bits I found that where the loom plugs in,

in the driver footwell there's an extra green plug that's not on the loom on the aerotop but is on the manual NA.

So im glad I'm swapping the front loom over :)

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None Electric drivers stock seats are very rare

 

So aftermarket would be the easier option if you don't intend to replace the cut plugs

 

The problem with that is the seat rails can be very expensive

 

The Evo Recaro's seem to be getting popular now, but you would have to factor in the cost of some Bride Rails as well

 

I would redo the wiring for the driver's side, I take it your passenger seat is manual anyway, as most are

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