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Finally have found a smashed donor car r33 series 3 4 door with RB25DE so I can ditch the RB20E boat anchor R33 series 1. The mrs is very happy. A few questions.

1. I'm assuming I will be able to use the RB20E manual box with the RB25DE?

Have a RB25de fly. Donor car is auto

2. Will the RB25de Loom plug up to wiper etc in a series 1 R33

3. what engine mounts will bolt up?

4. Tail shaft?

5. Gearbox xmember will this bolt up when sitting behind a RB25de?

6. Any other traps I should be aware of?

The donor car is the complete car so have all the parts I should need for the conversion.

Obviously I will have to do a few mods like auto drive switch etc. I don't have heaps of experiance with R33's but have built many Datsun 1600's with SR's etc and Silvia's. So mods and wiring etc isn't the issue. I don't however want to be stuffing around for hours, would rather a bit of knowledge from people whom are in the know with Skylines

Cheers :(

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https://www.sau.com.au/forums/topic/144496-conversion/
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hey. iv done this conversion on my r33. except i went to rb30de...

the rb20e gearbox bolts up, tail shaft slides rite on it of corse as your using the same box. if you dont have a manual rb25de fly wheel you can use the rb20e one.

you can use either rb25 or rb20e mounts, gearbox crossmenber is fine as as the engine is no longer then the previous.

yes the wiring plugs in to the headlights etc. well it did for me.

the only trap you need to be aware of is the fact that the car will crank but not start because it dusnt send power to the CAS. its pretty easy to do. all you need to do is run a power wire to the ingnition from one of the relays... it helps if you dont have a car alarm to blow up like i did with mine...

is your battery in the front or the back?

dus your car have ABS?

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https://www.sau.com.au/forums/topic/144496-conversion/#findComment-2702017
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hey. iv done this conversion on my r33. except i went to rb30de...

the rb20e gearbox bolts up, tail shaft slides rite on it of corse as your using the same box. if you dont have a manual rb25de fly wheel you can use the rb20e one.

you can use either rb25 or rb20e mounts, gearbox crossmenber is fine as as the engine is no longer then the previous.

yes the wiring plugs in to the headlights etc. well it did for me.

the only trap you need to be aware of is the fact that the car will crank but not start because it dusnt send power to the CAS. its pretty easy to do. all you need to do is run a power wire to the ingnition from one of the relays... it helps if you dont have a car alarm to blow up like i did with mine...

is your battery in the front or the back?

dus your car have ABS?

Cheers Mate.

Bat is in the back and no no ABS.

SO I just need to run a relay with the ignition to the CAS? Cheers

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https://www.sau.com.au/forums/topic/144496-conversion/#findComment-2702455
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its one of the relays by the ecu that has no power. i could have a look for you if you need. its almost been a year since i did the swap. its quite a simple thing to do as far as i know.. its the same thing that people with cefiros that covernt from rb20e to rb20det etc...

its simple for a auto sparky to do.

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https://www.sau.com.au/forums/topic/144496-conversion/#findComment-2720819
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