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Four tree two remember Andrew
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Discussion Starter #1
Anybody know whether stuff is interchangeable between the "Buick/Opel" aka Isuzu I-Mark of the mid to late 70s to early 80s and the Opel Kadett C? The question is more one of suspension than of engine.

Just curious.

Wilson
 

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400 flat to crest
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Wilson the stuff LOOKS nearly identical, and might be.
Only way to know is to lay the stuff down next to each other and check it out.





John Vanlandingham
Seattle, WA. 98168

janvanvurpa (at) f4 (dot) ca

Vive le Prole-le-ralliat!
Vive Le Groupe F!
 

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Four tree two remember Andrew
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Discussion Starter #3
I did some surfing while I was home with a sick kid yesterday. I make the following observations:

1. The "Buick/Opel" and I-Mark look identical to the Kadette. The car was also manufactured for the Australian market as a Gemini, and it came from Isuzu as well, although it was badge engineered under some other names as well. They even have a New South Wales spec rally class for it. They can run the Opel spec Bilstein rally suspension, but have come up with their own down there as well. They can also use the Opel LSD.

2. The Krauts have a bunch of stuff available, including cage kits, etc.

3. If anything, it is the drivetrain that is different. In US guise it was a 1.8 or 2.0 (unsure) 80hp/95ft-lbs 8v inline four.

4. Apparently, it can accept a bunch of different Opel based engines/drivelines.

5. Opel purists deride the car.

Wilson
 

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>I did some surfing while I was home with a sick kid
>yesterday. I make the following observations:
>
>1. The "Buick/Opel" and I-Mark look identical to the Kadette.
>The car was also manufactured for the Australian market as a
>Gemini,
Yes


and it came from Isuzu as well, although it was badge
>engineered under some other names as well. They even have a
>New South Wales spec rally class for it. They can run the Opel
>spec Bilstein rally suspension, but have come up with their
>own down there as well. They can also use the Opel LSD.
>
>2. The Krauts have a bunch of stuff available, including cage
>kits, etc.

But the Fritzies always want far too much for everything.
Try to understand this: it is an obscure and elite sport back home in der BRD.
The REAL development work on Opels post 1971 was in Sweden, and there they STILL like the car.
>
>3. If anything, it is the drivetrain that is different. In US
>guise it was a 1.8 or 2.0 (unsure) 80hp/95ft-lbs 8v inline
>four.

Yes, it is some ugly strange thing, but who cars, yank it out and get a nice light GM XE 16v
>
>4. Apparently, it can accept a bunch of different Opel based
>engines/drivelines.

Yes, the 1,0/2,0 Opel CIH is the standby favorite, but the modern 86 x 86 DOHC GM XE motor is so popular and good that lots of Ford guys drop it into their Escorts.

>
>5. Opel purists deride the car.

F*** the purists, real RALLY guys look at every shell as just a starting point.
Glass and sheet metal.... as always.
Suggestion:
Don't be dogmatic where the axle comes from, in Sweden many use the Volvo axle in Opels and Fords; in UK most use the Ford 'Atlas' axle.
Here I've used Volvos in Mazdas and Mitsu rwd.
For AE86s I plan on using US Ford 7 1/2" since it is very cheap and alkternate ring and pinions cost $168 AND it can be had in 4 bolt making alternate bolt circles to 4 1/2" PCD or even 4 on 100mm easier.
There's nothing sacred about the diff and axle tubes once they're mud covered.
Price and availability and strength.
(Note nearly all the GTEs in Sweden use the Opel "BIG" axle, around 7" vs the original about 6.2")


And really Wilson, just because you have a German name doeesn't mean you should saddle yourself with looking for things where Opel was made, look where it was developed and used.
From the early 70s to the early 90s it was the car to be rallying in Sweden becuse of the support from GM generalagent in Hägersten, which was accross the street nearly from my in-laws.
Their motor development work was mainly at ENEM, Nacka Motorrenovering, where an old friend Ragnar Moberg ended up as workshop chief. He was an ex Factory Husqvarna World championship mechanic, and very serious and careful.
Serious work down up there.
German rally was such that any B level Swede could make top 10 results and any A driver could win thing outright.
That low level of competition doesn't breed good parts or info.
>
>Wilson






John Vanlandingham
Seattle, WA. 98168

janvanvurpa (at) f4 (dot) ca

Vive le Prole-le-ralliat!
Vive Le Groupe F!
 

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Four tree two remember Andrew
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Discussion Starter #5
>And really Wilson, just because you have a German name
>doeesn't mean you should saddle yourself with looking for
>things where Opel was made, look where it was developed and
>used.

Yeah, but I can read the German web pages. :)
 
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Opel? should have talked me out of mine Wilson, while I was vunerable.. now I'm all swept up in it. My Manta should be running by the end of the month, Rallycrossing by spring, and out on the streets while I slowly install goodies and build "the" motor... bwaaahaaaha }(

I hope that NASA/RA has H. If not, I don't care if they put me in open- I'm gonna run it.


http://www.treesandturtles.com/
 

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Keep us posted, John; we are going to restore a '72 Manta Rallye for the street and resurrect 'Lil' Blu', the powder blue Opel 1900 I rallied for many years. What are you doing with the motor? Maybe we can swap build info; I have some ideas on where the cars are weak and strong, what tneds to need replacing, etc., having done a variety of 'crash tests' of the 50 series chassis' over the years....

Hey JVL, quit picking on Herr von Kessler....

Regards,
Mark B. :)
 
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