Possible Z32 adapter plate group buy

[gs14racer]

Alright gents I got a vh bellhousing and z32 adapter plate at my machine shop right now.

We are gonna try and get a group buy of 10 people to get this going.

This will be using a VH45de motor and z32 transmission.

There will be no flywheel spacer used.

All that will be needed from you guys is the z32 bellhousing from the transmission

( you must source this yourself) I can source one for you at for the cost of 400.00 plus shipping.

What will entail is machining your bellhousing down so that the adapter plate will be as thin as possible while using the 300zx flywheel with no spacer. It will be made from aluminum

The final product will be available in about two weeks. It will be ready to ship out to you guys about a week to two weeks after that so 30 days total tops.

Price will range between 500-650 depending on amount of people and final cost of machining.

Again you will need to send your z32 bellhousing to us for machining.

Let me know if anyone is interested either by posting here or emailing me at [email protected] .

We are in florida, USA however International shipping might be an option.

[ultrapulse]

Just one thing, thats a bit tricky when the bellhousing doesnt unbolt from the trans on the z32. I would be interested if it was a spacer which simply bolted between the std z32 box and vh. That way if u had a gearbox drama the next one would bolt straight on. As for the reqd flywheel spacer, its been done lots without many (if any) headaches. Just an idea. Cheers.

[gs14racer]

The bellhousing does seperate its just part of the transmission casing. Its only a couple of bolts and 2 c-clips.

Yes you get gear oil all over your hands but this is the best way we can do it at this time.

[SuperHatch]

The bellhousing does seperate its just part of the transmission casing. Its only a couple of bolts and 2 c-clips.

Yes you get gear oil all over your hands but this is the best way we can do it at this time.

I think the point was that if you bust a gear and damage the case, you're not completely screwed looking for a new adaptor....

[gs14racer]

Guys the adapter is seperate from the transmission the only thing that is done to your bellhousing is that it is milled down a bit, which can be done easy enough to another transmission case.

However i do understand what you are saying if it grenades and blows the case off then yes i guess you are in trouble, you would just have to mill the new transmissions case down again.
Modified by gs14racer at 11:26 AM 3/17/2007

[SuperHatch]

So you're making an adaptor AND milling down the transmission case to avoid the need for a flywheel spacer? Nothing is being welded to the Z32 bellhousing?

[gs14racer]

So you're making an adaptor AND milling down the transmission case to avoid the need for a flywheel spacer? Nothing is being welded to the Z32 bellhousing?

Yes that is correct.

[sinfiniti]

This is the best approach with the minimal cost (without any mechanical weakness induced)

So you're making an adaptor AND milling down the transmission case to avoid the need for a flywheel spacer?

Introducing a flywheel spacer pushes the Bending Moment (BM) far too high. From an engineering POV it would be even better to weld the adapter to the bell housing (preheating cast etc etc etc).

The best approach would be to have a CNC machined custom bell housing with all the appropriate webbing. But not all of us have $5300 to do this.

Casting a custom bell housing is again an option. But at the end of the day the best strength/$ is:*300ZX flywheel*17mm Adapter plate with appropriate router-sunk (not counter sunk ie it is sunk at ~90deg, like a cup) to fit allen-cap bolts to the gearbox side (bolt this assembly to the engine)*300ZX starter

obvious next step would be alluminium flywheel with a chro-molly friction surface via counter sinking attach ment bolts (on a sweeping 60deg radius). Mate a twin or triple plate clutch 5.5in or similar.it might require a bit of imagination, so Ill try to get one of the drafties at work to draw one up and ill add it to this post.

The only down side to this light-weight assembly is the lack of stored energy n the flywheel, but hey throttle response and closed-throttle reponse will make up for it - yeah?

I've go a few more top end ideas for you "money-is-no-object guys out there", but I'll be sticking to my stock 45DE with twin GT30's 10psi and a Z32 5speed till the bank balance is more healthy.

*at the end of the day if it work, it works. I've seen some "dodgy" things done that should never have been executed, but work perfectly for the entire life of the car/machine - so who cares right?

hmmm maybe we need a "DODGY BUT IT WORKS/WORKED" thread!!!

[sinfiniti]

obviously it would need a cromolly ring gear also....

[ultrapulse]

I just got a mate to make me a flywheel using the correct offsets etc..piece of piss. then used a factory ringgear. Thats the easy bit. If u were to use a flywheel spacer that isnt the end of the world. Its the well-designed adapter plate that i'd be keen on seeing.

[sinfiniti]

so no one has entertained the, z moduls of the, extended bolt lengths and the repercussions seem from z=(bd^2)/12 where the length of the cantilever is the fitting used (EXTRA LONG BOLTS)and A=3.14d^2I=A/zetc etc tec...

It is poor practice to use a flywheel spacer.....It is poor practice to use a flywheel spacer.....It is poor practice to use a flywheel spacer.....It is poor practice to use a flywheel spacer.....

Thats my advice at least, and who am i to give advice anyway.


Modified by sinfiniti at 2:56 AM 3/19/2007

[ultrapulse]

I'm not great at explaining things, so here goes again. If a gearbox spacer (adapter plate) was used up against the factory z box, then make a custom flywheel to suit the app. That way u dont have long flywheel bolts, rather a flywheel with the offsets to suit the ringgear and relative clutch spline position. The only thing left is to fit a spigot bearing/bush to teh flywheel rather than the crank. I am a firm believer in still keeping common parts available. Over here u'd expect to pay mabe $500-$700 for a z32 box, which is very cheap in my opinion v's their awesome strength. But due to their rarity (as most here are autos from jap) it'd be nice to keep them unbutchered.Getting back to the flywheel spacer, yes I fully understand your principals. I only went to school to eat my lunch, but understand most theories. On the other hand heaps of people over here running lexus motors use either tilton clutches or used to run a 4cyl celica turbo flywheel on top of the factory auto ringgear before custom aaftermarket stuff became available. Pretty sure they left the spacers in between the two. Sure both these examples may be less offset than the 3/4" (or whatever it may be) of gearbox plate, but they seem to work fine.For what it costs a custom flywheel is the easy cheap part of the job if the flywheel spacer idea is too "dodgy" for you. There is also a dowel which you could use if you were worried. I didnt bother as the VG doesnt, and a mates one is 503rwkw and hasnt shown any signs of falling to bits yet. If the engine was to be a high hp build or race application I wouldnt use flywheel spacer, other than that they seem work fine.

[elwesso]

I tend to agree with ultra pulse.

The fact of the matter remains.. We all know about the boosted VH45 with a 5 speed thats been running around in GA for the past 2 years, he's had no problems with his setup...

Granted, that could be the difference between a "daily driver-able" 500HP street machine anda 1500 HP racecar... In all honesty, I dont think to many people are gonna be doing that with a VH45 in the near future (except those crazies from NZ )

gs14- the GB sounds great and a pretty good price as well.

I guess I only have one question... If we didnt mind using a flywheel spacer, could we buy just the adapter plate with all the hardware and then have a spacer made ourselves? Out of curiosity, how thick is your plate gonna be?

This is certainly very interesting.. It would be really cool if you guys could either offer the machining service OR the spacer... Woudl be much nicer for those that live overseas.

[USsil80]

gs14- the GB sounds great and a pretty good price as well.

I guess I only have one question... If we didnt mind using a flywheel spacer, could we buy just the adapter plate with all the hardware and then have a spacer made ourselves? Out of curiosity, how thick is your plate gonna be?

This is certainly very interesting.. It would be really cool if you guys could either offer the machining service OR the spacer... Would be much nicer for those that live overseas.

that would be awosme

[SSDwellah]

I am also looking for an adapter plate but I am a bit worried about shipping a bellhousing around. Is it possible to buy just the plate and I can have the machining done elsewhere?

[gs14racer]

FYI Everyone the adapter plate is done

The shop made four more of them, they can make as many as need be on the cnc from here on out

Price will be 475.00 plus shipping both ways

Thats for the plate, machining your bellhousing and hardware. Its made to work with the 300zx clutch , flywheel, and starter.

I should have it tommorow, pics coming soon.

[elwesso]

FYI Everyone the adapter plate is done

The shop made four more of them, they can make as many as need be on the cnc from here on out

Price will be 475.00 plus shipping both ways

Thats for the plate, machining your bellhousing and hardware. Its made to work with the 300zx clutch , flywheel, and starter.

I should have it tommorow, pics coming soon.

Sweet! Id realy like to see if they'd be willing to make a spacer?

[gs14racer]

now we're cooking with fire. special thanks to mazworx. They sell this now for anyone who wants it

[Stinky]

Nice job. My only concern is how much material is left for the bolts to hold on to. How much material is on the adapter between vh45 bolts and the block? It looks pretty thin. How thick is the aluminum plate? Is the adapter threaded or are there threaded inserts in it for the trans bolts?

[gs14racer]

Nice job. My only concern is how much material is left for the bolts to hold on to. How much material is on the adapter between vh45 bolts and the block? It looks pretty thin. How thick is the aluminum plate? Is the adapter threaded or are there threaded inserts in it for the trans bolts?

The aluminum plate is pretty thin coming in at about 15mm.

The bolts that go thru the plate dont grab on to alot of material in the plate at all. And the plate itself is threaded for the transmission.

The plate is doweled on both sides so it wont move sideways and it will be quite difficult to break imo.

Time will tell.

[T45]

It looks like that will work for the VG30/VG33 transmissions also, correct?

I.E. - VH45 on a VG33 5 speed trans.

[elwesso]

very interesting that its only like a half thing compared to Dixon's full circle plate?

[Florida240sx]

Hmm might not go auto any more... This makes no spacer needed..... Mazworkz did this I'm local

[Mettler]

What is everyone's fascination with the 300ZX gearbox? Other gearboxes can be used too.

obvious next step would be alluminium flywheel with a chro-molly friction surface via counter sinking attach ment bolts (on a sweeping 60deg radius). Mate a twin or triple plate clutch 5.5in or similar.it might require a bit of imagination, so Ill try to get one of the drafties at work to draw one up and ill add it to this post.

What, you mean like the purpose designed, 7079 grade aluminium + high tensile wearplate friction insert, 5kg flywheel that I designed in 3d and built over a year ago, and have had on offer to Nissan V8 enthusiasts & NICO for about the same length of time?

Why waste your time when you can just buy one off me? I did the R&D, I bought the materials, I've got a full kit at home waiting for someone to buy it. I've proven it works mint in my conversion, and the flywheel survived quite a lot of thrashing in the period of time I was using my car, including many hard launches. It bolts straight up with perfect positioning & clearance, and even looks like a factory item.

Oh, and it provides the desired throttle response you'd expect from a sports/race engine.

I think I've done everything I can to offer a flywheel solution for people, if you're interested, I can e-mail you further details.

[elwesso]

I think everyone wants to use the Z box because...

1. In the states theyre cheap as hell (you can pick em up for under 500 all day)2. It stays in the "nissan" family.3. The Z32 clutch and flywheels simply bolt onto the VH45. All you have to do is buy the parts. I guess using a spacer is at anyones discretion.4. The trans mounts are the same (between Nissan Transmissions, all you need is the transmission X member for the specific vehicle), and actually with this one it should mount right up to the factory mounting holes.5. Everyone knows that for most VH setups the stock Z box is adequate.6. The starter mounts on the box so you can use a Z starter on a VH45 and not have to mess with the Q starter.

[Mettler]

Ah well, if you're happy to settle for a stock Z32 flywheel... enjoy

[gs14racer]

I have a nice 12 lb chrome moly flywheel, and i picked it up for 190.00 new.

[elwesso]

Ah well, if you're happy to settle for a stock Z32 flywheel... enjoy

Mettler you can bet if I wasnt using a Z32 box id get one of your flywheels... however there are rough equivalents to your flywheel already made and probably cheaper... No offense, its just simple logistics.

[Mettler]

Mettler you can bet if I wasnt using a Z32 box id get one of your flywheels... however there are rough equivalents to your flywheel already made and probably cheaper... No offense, its just simple logistics.

Link to equivalent flywheels pls? I've never seen a flywheel solution for the VH, that's why I designed one. Are they 1. using the factory starter motor, 2. as strong, 3. as wear resistant ?

[SSDwellah]

Here is a good flywheel for the Z32 that will bolt up to the VH45DE (and other 8-bolt nissan patterns). I have one on my S13 with a turbo KA and it revs great! I have heard phenomenal reviews from people with N/A Z32s that the throttle response is greatly enhanced.

EDIT: Just wanted to clarify here. When I said I had one on my KA, I meant one of the same brand, not the same exact part number

http://www.fidanza.com/Aluminum-Flywheels.aspx

As far as the specific stats and what's stronger, I'll let you be the judge. I, however, am putting the VH in a Z32 so I know the 300ZX gearbox will mount (it better since it comes stock ). I also know it will take some abuse. I also know that the driveshaft will fit, or in the worst case might need to be shortened a little bit but at least the yokes are the same.

I can only speak for myself, but I am not knocking your flywheel nor do I think anyone else wants to. Its just that for my particular setup, and perhaps other peoples', the 300Z gearbox is preferred and... that means we can go with off the shelf, 300ZX starters, 300ZX flywheels, 300ZX clutch kits, 300ZX clutch hydraulics, etc.. etc... There's something to be said about parts availability when something eventually breaks. Anyway, I didn't mean to jack gs14racer's post.
Modified by SSDwellah at 4:12 PM 5/1/2007