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Creating an AWD Monaro.

Discussion in 'VY - VZ - WK - WL - V2' started by edelbrock1, Aug 3, 2013.

  1. edelbrock1

    edelbrock1 Member

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    After owning the Coupe4 for a while and wanting a little more 'seat of your pants feeling' but not being able to bring myself to modify the rare Coupe4. I decided to build one.

    After pricing up a body kit at more than $10k and the same to fit it, the plans where shelved. Was really concerned that without the body kit the front wheels would stick out past the stock guards.
    Decided to drop the idea and just bought a CV8 to drive to the WA Monaro Nats last year, but made sure I got an '03 version with the AWD floor pan... just in case you know.

    Then a few months ago trawling the net I found a fella with a flare for these kinds of conversions. He is retired and just tinkers with his own supercharged 6L AWD VZ tonner. Asked him one day if he would be interested in converting my Monaro to AWD. Wouldnt you know it, he said he would be keen. So with the approval from the minister of finance, it was game on. Still very uneasy about the front wheel track, but he was confident that it wasnt anything to be too concerned about.
    A low K rear ended VZ LX8 Adventra was sourced at the auction and it was all happening.
    [​IMG]


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    [​IMG]
    The engine and trans were dropped from both the Monaro and Adventra. This was our first 'got ya'. The 2WD and AWD tunnels are totally different. The 2WD has a trans mount welded over the top of the Transfer case hump in the floor. So we had to unpick the 2WD cross member mounts and the AWD one from the Addy and weld it into the Monaro floor. This was only required on one side, so was all done in an afternoon.

    [​IMG]
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    Bit hard to see with the black paint. But it all looks factory.

    [​IMG]


    From there it was just a simple matter of bolting it all back together. It was a VY Monaro and VZ Adventra. So we decided to VZ the engine bay and use as much stuff as possible off the Adventra. There were a few more 'got ya's' doing this as the engine fans are all wired differently and as we were still using all the VY wiring it needed a bit of a mix n match to get them to work.
    Adventra diff was hauled out and recond'd, also fitted an LSD at the same time. As we were using the Monaro wiring we took away the silly cross trac system which is not needed on a road car anyway. This made the conversion so much simpler. But if we did not put the LSD in the diff it would have just been driving one rear wheel and one front. So this way we are always driving atleast 3 wheels.

    [​IMG]



    But this conversion would have been pretty much impossible without having a donor car side by side to rob bits off. There is just so many bits that are AWD only that would break the bank if you had to rush off to the wrecker to buy them every time you found out you needed something. Plus then you have the left overs from the wreck that you can sell off to get some of the conversion costs back.

    All in all it went very smoothly indeed. Had to mate up the orginal Adventra exhaust headers to my 2 1/2 inch Monaro exhaust, and had to remove my Harrops as they would not suit the AWD. But installed a set of HSV Avalanche brakes that I got off eBay and I swear they are nearly as good as the Harrops.

    [​IMG]

    So this is how it sits now. I am pretty happy, no one can pick any difference with the car unless I tell them. But with the extra 30mm track each side the wheels do stick out further than I would like. So I have the front wheels in getting modified to hopefully take around 10mm of track off.

    Next up for the car is either a manual conversion. This fella seems to think that it is just a matter of making up an adapter on his CNC to join the manual box onto the transfer case OR there is an option of converting the 4 speed auto to flappy paddle steering wheel controls. Now that would be a neat trick, so not sure which way to go with that one. But once that is all sorted, I hope to supercharge the thing to get that seat of your pants feeling that I dont get on the Coupe4.

    Any questions?? just ask.
     
    Last edited: Oct 2, 2013
  2. Mk2

    Mk2 New Member

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    Can it be lowered with all of the Adventra running gear? And go for the flappy paddles.

    Otherwise, top stuff.
     
  3. edelbrock1

    edelbrock1 Member

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    Had it all wheel aligned once we were done, and the fella at Pedders said that the angle of the lower control arms is not ideal. It is not bad, just not optimum. Will look into putting all Coupe4 stuff in it later, but the whole idea of this build was to do it as cheap as possible to make sure it could be done.
    I really can not tell the difference between driving this and the Coupe4. I am going to do a couple of hillclimbs and Mallala track days, so if the suspension shows its shortcomings there I will investigate changing it. But until then just happy to drive the thing.
     
  4. Straya!

    Straya! New Member

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    Damn this is impressive, good stuff.
     
  5. 1_johnboy

    1_johnboy Member

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    love it, never really gave it much thought converting a Monaro to AWD.
     
  6. Kiddo

    Kiddo You're serious bro?!

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    If you dont mind me asking, how much did this cost? Including monaro, donor car, and labour?
     
  7. edelbrock1

    edelbrock1 Member

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    Monaro I have had for around 12 months now. It was on Car Sales for $27k. I saw it on the side of the road when I was out for a cruise one day. VZ Bonnet, Harrop Brakes all round, Tuned with full 2 1/2 inch exhaust. Missus said all I had to spend was $20k. So this is what I offered, after a lot a whinging and complaining he accepted. Has not missed a beat since I got it. Picked up the Adventra at auction for $4.5k By the time I paid all the fees and to deliver it was a few dollars over $5k. Including the car, the whole conversion cost me $11k. That is with the Adventra brakes and this guys time etc.
    BUT, then I have all the rest of the Adventra to sell off. Have sold $7k off it already with hopefully another couple to go. This included all the bits off the Monaro that I could not use as well, Harrops, extractors diff etc. I did give a lot of parts to the guy doing the conversion, which would have probably been another $1k
    So all up I am stoked. Once I am done with the Adventra the Monaro should owe me less than $25k.... Bargain in my eyes.
     
  8. Jonnii

    Jonnii Member

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    This is great you made it seem so simple and straight forward lol
     
  9. Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Nice work. Very interesting conversion.

    Though not sure how I feel about towing an adventra with a monaro.

    Lol.
     
  10. edelbrock1

    edelbrock1 Member

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    It actually was very straight forward. Much easier that I thought it would be. It would have been a lot harder if we decided to keep the crosstrac system, this would have required a full wiring change and then mess with the brake system too. So as it is now, the car thinks it is still a Monaro. We still run all the Monaro wiring and computer, it just mechanically drives the front wheels too.

    Illegal... yes. But I didn't have far to go, it was dark and I made a dash for it. LOL It all worked out OK.
     
  11. Hangman

    Hangman Aspiring Sociopath

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    Impressive stuff. Supercharger and manual conversion :spot on:

    And vids of 4 wheels burnouts please :p
     
  12. HoZy

    HoZy //There Ain't No Rest For The Wicked...

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    Well this is just a little bit impressive!

    Nice work dude!

    Cheers
    Mat
     
  13. nathanVY

    nathanVY such boost

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  14. NVMYVT

    NVMYVT New Member

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    would be interested to see what you can throw to the ground? have you had it on an awd dyno yet?
     
  15. Sabbath'

    Sabbath' Road Boss

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    Nice work. It's stuff like this that should be getting in the magazines rather than some muppet who just slaps a set of rims and spacers on his Hektik V6 and thinks he's mod king.

    Really nice work and well done for thinking outside the box.


    Sent from here, so you can read it there. via iPhone.
     
  16. Kiddo

    Kiddo You're serious bro?!

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    Our Avalanche made 195ishrwkw stock, so the 4wd system loses alot.
     
  17. rory

    rory Donating Member

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    Second this, parents have Cross6 and V6 Adventra, both are quite slow and quite laggy. I would say a 25%-30% decrease from its RWD brothers.

    EDIT: also great work on this, not something I would do but you sound like you had your mind set on it so props to you for doing it :)
     
  18. Heron SSV

    Heron SSV Member

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    Top work. Wonder how much power the 4WD system could handle... it'd be sweet leaving the outside the way it looks now, nice and clean, and fill it full of 400+ cubic inch LSX PSI fed madness. Or just a tune and enjoy it. Either way....
     
  19. mpower

    mpower Well-Known Member

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    I love Monaro's and I love the idea of the coupe 4, this seems like an interesting conversion. Good on you for what looks like a clean job not a hack job.

    Sits a bit high for my liking though.
     
  20. Kiddo

    Kiddo You're serious bro?!

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    We had 2 rear diffs replaced, and i think the front one too.

    Can't 100% remember, as it was some years ago.
     

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