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Query: RB26 swap for IS250 AWD

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Old May 24, 2017 | 09:34 AM
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Default Query: RB26 swap for IS250 AWD

*Before anyone gets excited, please note that I'm purely looking out of curiosity -- I've done a ton of research on F/I in these cars and motor swaps and am aware of the hassles.

I'm curious to know if anyone has ever tossed around the idea of mating an RB26 (DETT) to an AWD 250?
Would the motor even fit? What transmission would we mate it to - assuming it itself fits in the tunnel?

I'm assuming there would be a lot of fab work involved and tons of wiring headaches, but I'm wondering if anyone has actually seen this thru to the finish or anywhere close...

(Why not a 2jz you may ask? The RB26DETT already mates with a nissan AWD chassis and transmission, thus saving some "conversion" time -- plus keeping the AWD wouldn't hurt.)
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Old May 26, 2017 | 12:44 PM
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For what it's worth, the 2JZ also came with AWD (at least in GE form), and so the parts exist to do an AWD 2JZ setup. No easy manual transmissions, but still.

Jeff
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Old May 27, 2017 | 10:50 PM
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Huh? A straight 6 in a V-6 chassis? I think you'd need to lengthen the car by a foot or two. Besides, the 350 or F are far better than a rusty old Datsun anyway. And if you want to go faster than that, get a sports car.
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Old May 28, 2017 | 08:41 PM
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Originally Posted by JeremyT
Huh? A straight 6 in a V-6 chassis? I think you'd need to lengthen the car by a foot or two. Besides, the 350 or F are far better than a rusty old Datsun anyway. And if you want to go faster than that, get a sports car.
A straight 6 can fit in the 2IS body without too much trouble.



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Old Jun 2, 2017 | 12:38 PM
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Assuming the RB26DETT fits in the engine bay, I'm curious to know what transmission one would mate to it (awd to be kept), and if that transmission would physically fit in the tunnel.

Again, put all the wiring, custom mounts, etc. hassles aside -- wondering about physical fit
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Old Jun 7, 2017 | 12:51 PM
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I don't see why it wouldn't fit if the 2JZ fits. Are those engines significantly different in size than one another? Who knows how much this will cost though...

Love the creativity though!
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Old Jun 7, 2017 | 09:30 PM
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Cool

Originally Posted by Rezno
I don't see why it wouldn't fit if the 2JZ fits. Are those engines significantly different in size than one another? Who knows how much this will cost though...

Love the creativity though!
Yeah just thought I'd bring an interesting topic to the forum!

And you'd think so, but from what I've been reading, the oilpan on the RB26 has presented a problem for many people swapping it into a new platform -- the AWD oilpan contains the front diff and axle shafts, so if you were to try "lining these up" with a Lexus IS's layout, I'm 99.999999% sure that wouldn't happen!

This would mean a complete rework of the front suspension and subframe.
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Old Jun 7, 2017 | 11:01 PM
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You can fit just about any engine into any car, just takes a lot of $$$.
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