OK, I seriously want to do an AWD conversion. I only want serious technical responses please. I realy need help, I am going to find a nissan OEM price list and price this out too.

So would I have to completely remove the drive train and replace it with the drivetrain of the X, or can I use the rear driveshaft from the standard coupe in combination with the front drives shaft and diff from the X? The next question would be the tranny... could the standard coupe tranny work? Does the X use a transfer case or do the shafts come off the tranny? I would also assume that I would need an ECU from the X in order for the "smart" AWD to work. I think this would just be an awesome project and make the G perfect for the northland. The platform for the X and C are identical so I assume that everything underneath the body matches up.

Step one is determining the parts needed and pricing it out so if you drivetrain guys could help me out it would be great.

Obviously getting the parts is the easy part and I obviously won't be doing the work, but I would think that this is very possible, and for around 3-4k, I think for me this would be the most useful mod of all time. Seriously thinking about selling the prelude to do it. So let's get serious about this and come up with a list of parts and theory to make it work.

Thanks everyone.

Adam

 

its definatly do able if u got the money, but is it worth it? thats the question.

the floor might needed to be cut, front suspension gonna be changed, its gonna cost alot of money, might as well just buy an AWD subaru for winter.

unless u are a tuner and using it as a demo car (advertising purpose and to show off ur skill) i dont see why u would spend so much money in building this car

 

found this article from somewhere long time ago (dont remember where)...hope this helps a little.



and the photo i took when i had my coupe midpipe installed.

 

how often do you smoke the crack rocks?

 

i have a feeling that this project wouldn't be technologically or $ feasable.

Top Secret Japan has a V35 (G35 coupe) demo car with a twin turbo VK45 V8 and IIRC they were thinking of doing the AWD conversion and decided against it because of the difficulty of the project. also keep in mind that this was after they did $300,000 worth of custom fabrication and work on the car to make the V8 and Supra tranny work with the car, so even if it cost $10-20k to do it, i'm sure they would have

perhaps TOPSECRET2001 could provide more information about that

 

the Top Secret car had a V8, there was no more room physically to install AWD, if they kept it a V6 or dropped in a RB26DETT then its definatly possible. i think some japanese tuner have dropped in a full RB26DETT along with the GTR's AWD drivetrain into a 350Z.

the tranny itself should be the same, the transfer case might be able to be bolt on to the end of the tranny.

the easiest solution is to buy a wrecked G35x and transfer as much parts you need as possible to the coupe. you probably would have a real tough time to figure out excactly which part you would need to build a coupe into AWD.

i'm roughly estimating that you would need at least 30k USD for all parts and labor for this project.

 

Thanks for the diagram, it is going to help. Any information from TOPSECRET would be awesome. underneath the car is essentially identical between the coupe and the sedan so I can't see where it would be that tough once you have the parts.

The tranny and the rear diff should be interchangeable, but due to the altered length of the rear drive shaft I would assume that would have to be changed (maybe the CF 350z would fit...), then I am going to need the elec transfer case, front drive shaft, front diff, and front axles.

AWD on these cars is a $2000 option... if it is less than 4k to convert a coupe it is worth it for real. If you have ever driven in northern MN you would understand... It snowed here (didn't stick during the day but did at night) all last week. IT IS FRICKEN MAY!!!! so what I'm saying is I have a winter beater, it is a '92 Honda prelude and a 2002 Avalanche 2500, but I hate parking cars for the winter. If I can sell the prelude and put the G into commission all winter... I would be pumped... that and I would have the ONLY AWD G coupe on the planet... at least until 2007

 

Is there a site out there that sells OEM Infiniti drivetrain parts?

 

Anything is possible with money, but you're sorely mistaken if you think you can do all this for $4K. Buying these parts from Infiniti will cost you an arm and a leg. Just because it's a $2K option doesn't mean the per part cost won't exceed $2K. I bet the transfer case alone is $1500-2000 from Infiniti. Then there's the labor and figuring out how to wire in the new tranny ecu which I'm sure has many more functions and plug-ins than the standard RWD tranny. In the end, you're probably looking at closer to $10-15K to get it all done and working "mostly" right.

Here's a crazy idea......buy a set of 16" rims and snow tires. For less $1000, snow tires will get you around in the snow far better than the AWD system with all season tires. That's a fact.

 

It would probably work out better if you just chopped a G35X into a coupe.

 

Amen, brother. I second that.

 

Try http://www.infiniti-parts.com/

 

Is there no one that thinks this would be awesome?

1000 bucks for 16s and snow tires, I plan on, but add that to AWD and it would kick ***. It would have the longed after coupe looks with the functionality of a rally car. I think it would be sweet. I want an AWD COUPE. not a 4 door, which knocks out EVERY subaru, the evo, the closest thing is the AWD gallardo. I know that just because it is a 2k option doesn't mean that I can do it for 2k, but if I can acquire the parts for around 4k, it would be mint.

...any X drivers want to trade drive trains j/k. Thanks for all of the info about wheels and tires and stuff, but I think I really want to focus on how to make this possible and the associated costs. I might have to talk to an infiniti mech guru.

Dave, the tranny controller (assuming it is not taken care of on the electronic transfer case) is my biggest concern... I highly doubt that the coupe tranny controller is prewired the same as the X. And I don't think that the main ECU is the same either.

I can imagine that bolting it all together would be slick and not to tough, but getting the electronics right would be next to impossible I'm guessing. The coupe and the Sedan are identical with the exception of the outside. Take the body and the interior away and voila, you have the guts of a coupe or sedan. The wheel base is identical as is the frame width so this should be an easy bolt together.

 

To solve the problem of ECU:
Why don't you transfer the G35x ecu over and then tune according to the G35c?

Parts:
Since the platforms are nearly identical, it sounds like it's bolt on. But when I am under the car, there really isn't much space to be adding those components. I could be wrong but hey, it sounds doable.

What else would be needed?
Front final drive, front differentiable, new crossmember, new tranny?

 

If you want it I have the lower oil pan from a g35X engine, the motor mounts, and the front differential...$500 for all of it.