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Is It Possible To Put A Vq35de In A R34?

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HotPlates Proficient

HotPlates

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I've always thought the R34 needed more guts down low, so I thought this would be the perfect conversion apart from a V8.

I'm curious as to whether a VQ35DE with a turbo would go into a R34 without many hassles? Like would the mounts meet up? Would this cause balance issues? As an estimate what sort of money are we talking here?

Forged Experienced

Forged

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I've always thought the R34 needed more guts down low, so I thought this would be the perfect conversion apart from a V8.

I'm curious as to whether a VQ35DE with a turbo would go into a R34 without many hassles? Like would the mounts meet up? Would this cause balance issues? As an estimate what sort of money are we talking here?

The Nissan team in JGTC has done this years ago when they were making a prototype engine for the new GTR.

Im pretty sure Top Secret has also built a R34 GTR with VQ35DE Twin Turbo, might have been stroked to 3.6l or 3.7l even.

craig V8 taffe Community Regular

craig V8 taffe

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I believe Nissan used VQ engines for the last year that the R34 competed in the JGTC, not sure tho.

Also, i think the VQ3.5 is lighter than RB engines.

Go a twin-turbo set-up from APS, would be an amazing car. Always wanted to do it as well, but would miss the sound of the RB.

scathing Grand Master

scathing

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i think modify your r34 engine.. there is almost no limits what you can do to rb25det to make it faster..
As for guts RB25 or RB26 can provide you with all the power you could ever desire...

Yeah, except he said in his first post that he wants more grunt down low. What can you do to an RB25 to make up for that 1L defecit low in the rev range, aside from nitrous or going to 3L (the latter still not being enough to compare torque to a VQ35DE with a turbo)?

I've driven VQ35DEs with centrifugal superchargers, single turbos and twin turbos. Off boost those things feel like a standard VQ35DE (i.e. lots of torque), and on small amounts of boost they make an impressive amount of power. The bottom end will take just under 300rwkW which will retain all that response while giving you a usable amount of power if you get on the boot.

If you can afford to do it, do it. The engine is lighter and more compact, although trying to get the mounts and the gearbox etc to line up might take some work.

HotPlates Proficient

HotPlates

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If you can afford to do it, do it. The engine is lighter and more compact, although trying to get the mounts and the gearbox etc to line up might take some work.

Yeah that's the only downside. Trying to get everything to mate up easily. I'm guessing this would be a very expensive job! Even the VQ35 without the turbo in a R34 would be awesome. I really miss the low down torque!

scathing Grand Master

scathing

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Yeah that's the only downside. Trying to get everything to mate up easily. I'm guessing this would be a very expensive job! Even the VQ35 without the turbo in a R34 would be awesome. I really miss the low down torque!

How much power do you want? Are you chasing power, or do you just want lots of bottom end and midrange to make the car as "lazy" as possible to drive (like an old Commodore / Falcon with their cast iron V8s)?

If you just want something that you can whack into a higher gear and cruise around in, with maybe low boost down the track, give some thought to the VQ40DE out of a current Pathfinder. A lot more torque (its a stroked version of the VQ35DE), but is down in outright power and has a lower redline. It also runs a slightly lower compression, so if you do go for low boost you can run a little more with this engine safely.

Only issue is that the engine is a bit taller than the VQ35, so you may need a power bulge in the bonnet. Engine's also a transverse mount, but the 350Z drivetrain apparently bolts straight up to it.

R34GTTSKY Experienced

R34GTTSKY

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i reckon just mod ur 34 turbo instead u can prob make it have as much power n torque as a V8

yeah u could whack in a V35de but the amoun tit'll cost u is gonna be thru the roof

n not to mention one yellow from ur local popo n u can kiss those mods gdbye =)ma 2 cents

scathing Grand Master

scathing

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If you're not concerned about fuel economy, another suggestion would be to run the final drive / LSD out of a NA Skyline. That'll pull your gearing down, and so you're more likely to stay up in the rev range where you can more easily make boost.

No idea how much a VQ35DE will cost you here. A brand new engine from Nissan Australia is upwards of $8K, and there aren't enough written off 350Zs yet to have much of a front cut market. Jap importers might be able to bring you something in, though.

Pro Concept told me they have a spare short motor, which I don't think they need since they're no longer working on a race car. Not sure what bits are missing though.

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