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Awd Rb25det

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Drift_Tuners Apprentice

Drift_Tuners

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has anyone attempted to do this or has thought about it? i'm thinking about swapping the rb25 from a stagea and putting it into an R34 gt-four. make a sleeper. any helpful and positive feedback would be appreciated. i bought an R34 gt-four rolling chassis (2 door) and it didn't have a drivetrain. what parts would i need exactly to do this swap. i've tried researching this for a while now and i can't find anything on it.

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GTS4WD Grand Master

GTS4WD

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Posted

I have put in a AWD 25DE into my r32 gts4.

Its all pretty straight forward.

ECU, loom, etc.

Exhaust may need a little modification in the front pipe section

You will also need to change fuel pump to accomodate for he bigger need of fuel

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R34GTFOUR Mentor

R34GTFOUR

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Posted (edited)

i was going to do this swap, but decided to go the rb30 awd path with my r34.

Pretty much a straight forward swap, with only a few minor changes.

What does your rolling chasis have? rear diff? engine? was it orginally manual or auto? if its manual do you have all the clutch gear (slave cylinder etc)?

The main point is making sure that you have the correct diff ratios front and rear. Most stageas are auto, so if your gtfour is manual and you still have the front diff, take the stageas rb25 diff/sump off and use the gtfour's.

Everything else is pretty much plug n play

Just on a side note the r34gtfour uses the same box as a gtr (but its uses a push type clutch, like the early r32's) but the rear diff is the same as a na r33/r34. This pretty much means if you are planning on pushing it hard, i wouldnt expect the axles/diff to hold up. The gtr rear diff is a great upgrade, but you'll need the gtr half shafts aswell. Then if you use the gtr rear diff you'll need the gtr's front diff aswell (since they have different ratios to the gtfour).

If you dont have a gearbox, the gtr box will bolt up, but just be careful which one you get (push or pull type).

Other than that, it should be a relatively quick, cheap and fun awd r34 :spank:

Edited by R34GTFOUR
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Drift_Tuners Apprentice

Drift_Tuners

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i was going to do this swap, but decided to go the rb30 awd path with my r34.

Pretty much a straight forward swap, with only a few minor changes.

What does your rolling chasis have? rear diff? engine? was it orginally manual or auto? if its manual do you have all the clutch gear (slave cylinder etc)?

The main point is making sure that you have the correct diff ratios front and rear. Most stageas are auto, so if your gtfour is manual and you still have the front diff, take the stageas rb25 diff/sump off and use the gtfour's.

Everything else is pretty much plug n play

Just on a side note the r34gtfour uses the same box as a gtr (but its uses a push type clutch, like the early r32's) but the rear diff is the same as a na r33/r34. This pretty much means if you are planning on pushing it hard, i wouldnt expect the axles/diff to hold up. The gtr rear diff is a great upgrade, but you'll need the gtr half shafts aswell. Then if you use the gtr rear diff you'll need the gtr's front diff aswell (since they have different ratios to the gtfour).

If you dont have a gearbox, the gtr box will bolt up, but just be careful which one you get (push or pull type).

Other than that, it should be a relatively quick, cheap and fun awd r34 :)

ok cause i was wondering about using the gtr diff's. also i'm gonna be using the auto tranny but i'm gonna have it built up and i'm gonna have the motor push about 500-600hp. so could i use the auto tranny with the gtr diff's? i plan on building the motor with z-tune internals and use an apexi AX53B70 turbo, hks valvetrain, i even have the gtr MFD screen for the vitals, z32 maf's, q45 throttle body, s-max intercooler with a built in sprayer just in case, tranny cooler and a few other mods.

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