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Group C Opel Monza build by Dirtbag


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#101 _cruiza_

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Posted 06 April 2012 - 08:26 PM

It has occurred to me that some people might not realise that Tim could be planning on using 2-pack paint which is much harder then acrylic and this will give added strength as well, this is why you should never criticise an unfinished project as you never know what a person has planned :stirpot:

Being semi serious for a second, as a expert at not being able to weld, the original joints that hold the car together are spot welds, which to me don't look all that strong especially after a bit of rust gets into the seam and pushes tears them apart, so surely a butt weld like this would be stronger then that?

On a tangent story I recall that when Holden first looked at the Opel to be the basis for the Commodore, the imported Opel's fell apart on Australian roads and Holden had to add bracing and strengthen the shells to meet Australian conditions, which might explain the extra bracing that the Commodore had that the Monza didn't. Actually another little tip bit I remember from the time was Holden disguised the Opel with Torana panel work.

Anyway enough ramblings, before DJ starts complaining about my stories again :P and more progress reports please maestro.

#102 dirtbag

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Posted 06 April 2012 - 08:56 PM

Well this is going well : ) I love a good internet argument!


OK, so here's where I stand. When it comes to chassis work I'm more into the hot rod side of things rather than monocoque bodied cars, so I'm just doing what I spoke to my inspector about. The rails are getting inner and outer diamond fish plates, that's a given, so I dont actually refer to that as "bracing". Also, it's not a straight line all the way through even though the pics make it look that way. I followed the shape of the inner strut reinforcing, so by welding the join inside and out I've actually fully seam welded the strut bracing into the joint. This is what I was told to do, and honestly by adding that much more metal into the join made the welding a lot easier.
Also, because this bay is getting fully smoothed out the cavities at the top of the rails are getting pieces of 1.6mm zinc fully welded along the top. This is considered a fish plate also according to the inspector, even though the main purpose is cosmetic.

As for a can of worms, I'm all for it. It's the best way for people (me included, I'm no one special who knows everything!) to learn about these situations.

In regards to the staggered join, all the hot rod chassis I've worked on through TAC inspection that needed joining were done at a 45 degree angle and reversed on each side if possible, so what Terra is saying I completely agree with. But for this I just did exactly what I was told as TAC and Qld Transport rules are very different. It's sad, but that's just how it is.

I'm never going to stop any one posting their views or opinions in my threads, I don't care if people think I'm a dickhead. To be honest, I kind of am hahaha! I certainly don't know all there is to know so please anyone with more info about things than what appear to be shown please add it!!! We're all here to learn!

Also, Monza1 thanks for the heads up. I haven't looked at the steering column join up situation yet but I do appreciate now knowing to use some of the commodore firewall, or modify the monza one.

So there it is. I'm happy with all the comments, especially cruiza pointing out my rivet and bog technique : )

One more thing, don't fight over yourselves if someone posts a harsh comment. It's the internet. All we want is to learn some stuff and look at boobs : )

#103 its Paul

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Posted 06 April 2012 - 09:08 PM

I re looked through the whole thread and I didnt see any Boobs, have you got a link Tim?


:-)

#104 hanra

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Posted 06 April 2012 - 09:08 PM

I like boobs!!

#105 _Liam_

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Posted 06 April 2012 - 09:16 PM

She's looking pretty good from this end mate. Doing a top notch job as usual.

What are the driveline plans? 5.0 inected? LS1/2? Manual is a given.

I hope you are having Easter off Tim, get some beers, play some Megadeth on guitar... Chill.

#106 TerrA LX

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Posted 06 April 2012 - 09:16 PM

I'm glad atleast the OP took it as constructive criticism, if I was to call you a dickhead I would just come out and say it, I'm not one for playing childish games.

#107 dirtbag

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Posted 06 April 2012 - 09:23 PM

Terra I wasn't saying you were calling me a dickhead, it was more me having fun hanging crap on myself :-)

There's so many cluey people on this forum and the more they speak out, like terra did, the better off we'll all be.

As for boobs there's none here yet but maybe I can build some :-)

As far as playing the guitar is concerned I haven't done that for a few weeks but last night I did go to the last g3 concert in brisbane to see joe satriani, steve vai and steve lukether. It was freaking awesome!


#108 its Paul

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Posted 06 April 2012 - 09:29 PM

As for boobs there's none here yet but maybe I can build some :-)



Awesome, PM me when you start the thread....... :-)



#109 TerrA LX

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Posted 06 April 2012 - 09:31 PM

Terra I wasn't saying you were calling me a dickhead, it was more me having fun hanging crap on myself :-)



That bullseye was painted on the wood ducks.

#110 _cruiza_

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Posted 06 April 2012 - 09:32 PM

OK boys don't get all excited here are some boobie pics for ya
Posted Image

#111 wot179

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Posted 06 April 2012 - 09:35 PM

Keep yer shirt on,Cruiza....

#112 its Paul

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Posted 06 April 2012 - 09:39 PM

The thing that is scarier than your pic, is that you have it on file :o


#113 _cruiza_

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Posted 06 April 2012 - 09:46 PM

bastards :P no it is not me I did a quick google images search and found it and no I have not saved it to my harddrive and am not that cruel nor is it on my uploaded images folder

#114 dirtbag

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Posted 06 April 2012 - 09:46 PM

^^^^^^^^^^hahahahahahahahahahaha!!!!! Paul, true gold :-)

#115 _Liam_

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Posted 06 April 2012 - 09:50 PM

Terra I wasn't saying you were calling me a dickhead, it was more me having fun hanging crap on myself :-)

There's so many cluey people on this forum and the more they speak out, like terra did, the better off we'll all be.

As for boobs there's none here yet but maybe I can build some :-)

As far as playing the guitar is concerned I haven't done that for a few weeks but last night I did go to the last g3 concert in brisbane to see joe satriani, steve vai and steve lukether. It was freaking awesome!


I haven't heard much on Lukather. Vai and Satch are amazing though for sure.

Awesome stuff man!

#116 MONZA1

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Posted 06 April 2012 - 10:05 PM

Tim, you won't need to use the Commodore firewall. It doesn't need a lot of extra clearance, (maybe 5 mm) so just a bit of heat on the bottom of where the column exits will let you give it some neat massaging to let the shaft turn without interference.

#117 dirtbag

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Posted 06 April 2012 - 10:15 PM

Excellent! Thanks monza1.

#118 Statler

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Posted 07 April 2012 - 05:07 AM

As far as playing the guitar is concerned I haven't done that for a few weeks but last night I did go to the last g3 concert in brisbane to see joe satriani, steve vai and steve lukether. It was freaking awesome!

Yeah!..... go on!....... rub it in! :)

Did you get Vai to sign your Chaibanez? lol

#119 dirtbag

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Posted 07 April 2012 - 07:12 AM

hahahahahaha Col : ) No I didn't but holy crap that man is a class act. It's bad enough that he and Joe can play the ridiculously hard stuff that they do, but they do it while mucking about and making you laugh at the same time. It's almost sickening, but awesome at the same time : )

#120 YELLAcakeu308

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Posted 08 April 2012 - 03:16 PM

'LX Torry Freak' What are the driveline plans? 5.0 inected? LS1/2? Manual is a given.

Motor not yet assembled but,
4 bolt 308 block, steel 308 crank, L34 heads, forged pistons/ rods, solid roller cam , HDT (vl) Headers
Getrag 5 speed
Id love to put 4 downdrafts on it but will see how the money goes.

#121 dirtbag

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Posted 17 April 2012 - 05:33 PM

OK, let's see if we can start another argument. They amuse me : )


Well I finally chopped the front stone tray off as the rotten thing kept cutting my shins!


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I don't need these 3 holes any more as the steering box isn't going back in.


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First fish plate. It's just 3mm zinc.


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Next job was to clean up the chassis rails. The usual thing people do is just weld a piece over the top, but that doesn't clean up the ugly seam on the inner guard that runs along the chassis. Also, the side of the rail is pretty ugly. I'm going to cover all of this.

Also, the rail has a kink upwards near the firewall. I don't want that, so I've markled a straight line along the top of the rail and will trim the lip off the rear of the rail so I can make the rails look dead straight.


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Here's the rear part of the lip removed and welded.


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I folded these out of 1.6mm zinc. I've made a 60mm lip that goes up at a 45 degree angle to hide the seam on the top of the rail on the inner guard and the lower 100mm lip covers the ugly rail side.


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The black line is where the new piece goes so it's hiding a lot of ugly crap. I also bought a can of weld through primer today so I used it inside the rails today. Seems really good. I've never used it before. I also welded another piece of 3mm zinc over the top join in the chassis before I welded the new chassis skin on. Can't hurt : ) It's not done in this pic though.


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Weldy time.


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I had some nice smoke coming from in here while welding. Very tasty : )


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Passengers side fish plate and steering holes welded up.


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I still have to finish the front of the new rail skin and smooth the inner guards but it's already an improvement in my opinion.


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There's over 3 metres of welding just in the two rail covers. Good fun : )


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So there you go : )

#122 _L32M20_

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Posted 17 April 2012 - 07:23 PM

more great work.

#123 Ruts

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Posted 17 April 2012 - 09:24 PM

I think there is way too much reinforcement in that front end........lol....... :stirpot:

#124 _cruiza_

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Posted 17 April 2012 - 09:54 PM

I was thinking the same thing with all the rivets and bog holding it together the extra 3m of welding was a complete waste of time, sorry Tim but that was just overkill, and will knock at least 10km/hr off the top speed

#125 _Quagmire_

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Posted 17 April 2012 - 09:57 PM

i agree ruts....will that still pass adr's? :stirpot:




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