What Q45 parts fit?

[T45]

I am typically on the VH45 forum and bought a 1992 Q45 for my swap. I ripped out the V8, trans and all harnesses with the intention of putting everything into my 99 Frontier 4x4. Well as luck would have it I landed a 1990 300ZX on ebay for 1k. Now I'm on the fence of choosing which ride to put the VH into....

Anyways I remember reading posts that certain parts from the Q that fit on 300's like brakes, rear end, etc. The 300 is a 90 2+2 non turbo and the Q is a 92 with tcs non-active. Any ideas?

[mtcookson]

Wheel bearings (Z32 TT style), axles (Z32 TT style), and differential. The diff is an R200 with Z32 TT style output flanges with a 3.54 ratio. Personally I'd swap that diff. in as it'll help with fuel economy with the V8 but if you do a boost setup down the road, it will likely be much faster.

Q45 fuel pump is the same as the TT unit, which is a very nice pump.

That's all I can think of worth swapping at the moment. If there's more I'll definitely let you know.

[T45]

Thanks, I thought some parts were interchangable. Any pointers for what I would be up against fitting the VH into the Z? I found one from Ultrapulse but he made a new oil pan with rear sump. Is that necessary? Also, I am assuming the stock Z32 trans would hold up to a VH but what about the clutch? Basically, what am I up against and what is recommended research I should be looking at?

I did so much research planning on the truck and now it may all be for not since this damn Z strutted in....

[Milo (San Antonio)]

I've heard the Q45 MAF is supposed to be an upgrade for the Z32 for some reason. Any idears why? Is it larger diameter or something....ohhhh....or maybe a difference in voltage or something like that?

[mtcookson]

Clutch wise you can use any Z32 clutch and pressure plate combo you want. For the adapter plate I'd probably go with Mazworx - http://www.mazworx.com/store/?...ct=59

You'll definitely have to do something with the oil pan. Dry sump or reverse the sump as the Z is a rear sump so stuff is in the way up front. I looked into moving/removing stuff for it to work and you'd have to remove/redesign the sway bar to get it close to working.

As for research... there's not really too much out there for getting it into a Z32 yet. I'm working on it and am finally getting ready to start again. I was waiting as I decided to go with a dry sump setup but happened to find a guy local to me that can build up some beautiful oil pans (as well as all out race engines) so I'm going to have him work on that for me.

Motor mounts will be custom, transmission bolts right up since its the Z32 transmission so you can use the stock mount or a urethane/solid mount with any of the driveshafts that are available (which is really nice).

Fitment wise, you might be able to get the engine low enough with a custom pan for the intake to clear the hood (I'll be finding out very soon) but if not... you'll need to either do a different manifold or modify the hood. If I can't get the engine low enough, I'm going the hood route as the stock manifold is pretty sweet.

Like I mentioned above, I highly recommend going with the Q45 differential. Without it you'll be in the mid to upper 3,000 rpm range when cruising on the highway and fuel economy will definitely suffer (if you're planning on driving it on the street like that).

As far as parts interchanging, I would definitely swap the fuel pump. Other than that and the rear drivetrain components, there's not much else that would benefit the Z. The suspension is pretty much identical and you'll likely go with upgraded suspension components down the road anyways.

I've heard the Q45 MAF is supposed to be an upgrade for the Z32 for some reason. Any idears why? Is it larger diameter or something....ohhhh....or maybe a difference in voltage or something like that?

Oddly enough, I've heard the opposite... but I've not seen any proof. Its definitely larger than the Z32 MAF so one would think it would be able to support more. You'll definitely want to keep it with the engine though as you'll likely have to do some computer tuning to use the Z32 MAF. I'd still hang onto the Z32 MAF just in case though.

[T45]

Thanks for the info! I have all the tools and knowledge for the rear sump, mounts and wiring so far. Another question I have is about trans mounting. I had an idea floating around in my head about bolting up the clutch, sliding the trans up to the engine and welding on new mounting ears to the trans so that I could just bolt them up. If I were to do this would I run into any issues with the shaft bottoming out in the crank? I have read that the shaft is too long but it may be of another trans. I can weld aluminum and all that I would need is some 1/2"-3/4" alum stock to make some new mounting points. Just a thought...

[mtcookson]

If I remember correctly, the VG bell housing covers up most of the bolts to the VH pattern. Also, I don't believe the shaft is too long as the Mazworx adapter sits flush with the rest of the transmission and that setup is working in that S14 in the VH forum.

[T45]

Well I picked up the Z last week. 1990 2+2 blue with blue int. bone stock. It was in a hail storm and is dented from head to toe. Rust on rear quarter and a hydrolocked engine. I wanted a bit better starting chassis but for $1K I think I did good. A little body work, flat black paint job and a VH and this thing will own.

Infiniti Q45-450.00Nissan 300ZX-1000.00rebuilding VH-600.00NICO ECU-250.00

Owning a 450Z with a bulletproof V8 with over 300hp/300tq...

Riceless.

[EQwhipD]

If it helps, I know a couple of guys who are getting rid of their Z32 NA engines (since they did the swap). Va Beach is about a 3hr drive from Raleigh/Durham. Might be worth checking out.

Regards,[email protected]