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Turbo Engine Into A N/a

r33bro

By r33bro,
in Engines & Forced Induction

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r33bro Rookie

r33bro

Posted
Posted

i have a 1994 R33 GTS N/A, and my mate is striping his 1994 R33 GTST turbo. what i was thinking is

if i buy his complete engine, gearbox, turbo and all with the complete wiring loom and ecu etc, and i get all its fuel system and its exhuast system, and its diff, pretty much his whole drive train from engine to diff and everything inbetween

my question is, would everything bolt in ok? like the diff etc,

and if i change all the wiring loom from the N/A wiring loom and ecu to turbo wiring loom and ecu, should just be a take out and put in job right?

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Just_Rb Rising Star

Just_Rb

Posted
Posted

its a massive amount of work which can be very expensive and time consuming, it will work with some slight modifications here and there but at the end of the day why would you, your better off getting your mates car and when resale time comes whos going to want to buy a n/a converted skyline when theres a million turbos out there.

r33bro Rookie

r33bro

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Posted

yer yer i see where everybody is coming from but can't buy his car it was witen off from the side. and cos he is a good mate and he is moving ovr seas for abit soon he is selling me the parts cheap, i don't care about the cost and the work involved as im a machinice, i just need to know will it all fit???. and if i want to sell the car ill make it back to a N/A and sell the turbo gear

Tezzah Experienced

Tezzah

Posted
Posted (edited)

You will need to cut holes for the intercooler piping. If its a FMIC, you will need to do the normal things required to mount that.

If it comes with a tuneable ECU. Do this.

Get as much as you can off your friend.

Install injectors into your 25de

bolt on turbo manifold and turbo

pipe up the water and oil lines.

install intercooler

get your 25de+t tuned and drive it till it blows (if it ever blows), then when it does, you have a 25det motor spare.

25de+t's are bloody good!

read the green text below.

Edited by Tezzah
N-DAWG Mentor

N-DAWG

Posted
Posted (edited)

As you said, if it blows...and you'd have to be running stupid boost or flogging the balls off it at every intersection for that to happen!

Using a DET engine of course means not having to tap in oil lines in the engine, but if you're confident with doing it then yeah go for it.

If you do the bolt on, you'll be swapping everything else over from the GTStanyway, so only difference is you'll have a more responsive turbocharged engine, the gearbox and all handle the turbo conversion better than a R33 GTS with a bolt on job as it's designed for a turbo car.

I see a number of possibilities too with this scenario...like Tezzah said, keep the engine spare and possibly not need it? or you could sell the engine to fund mods/recoupe the expense of the conversion. Or budget permitting, while you have an accessible engine, do an engine rebuild! You can take your sweet time with it not having to deal with having a car off the road, meanwhile everything else will already be there like exhaust piping etc when you're ready to swap the engine over. At least you'll then have had a DET engine to start with for the rebuild and dropping in high compression forged pistons and everything else that goes with a rebuild, you can still keep your high compression and have one mean RB25DET!

Edited by N-DAWG
Tezzah Experienced

Tezzah

Posted
Posted (edited)
Using a DET engine of course means not having to tap in oil lines in the engine, but if you're confident with doing it then yeah go for it.

I didnt have to tap oil/water lines for my 20de. Is this not the case for the 25de ?

Oil inlet = blanking bolt

Oil Drain = Blanking nut thing.

Water line to block = blanking bolt.

Water line to the inlet side was tricky, i installed the Y piece off a donor 20det motor(on the inlet side), which you then plump up the line that goes around the back of the head (inbetween the firewall).

That was by far the hardest thing in my whole conversion. The rest was eeeeeeeeeeezzzzzzzzzzzz.

Edited by Tezzah

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