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[chrisgixer]

Oh go on, on a school night

[05omegav6]

Jobbed

http://www.omegaowners.com/forum/index.php?topic=125378.msg1598616#new

[chrisgixer]

Jobbed

http://www.omegaowners.com/forum/index.php?topic=125378.msg1598616#new

Yep seen it

[Varche]

Chris. Just a thought but how about asking Opel for some help? You would have to ask the right dept. maybe the DTM outfit or New GM CEO Mary Barra visits Opel in Rüsselsheim (media dept) http://media.gm.com/media/ch/fr/opel/news.detail.html/content/Pages/news/ch/fr/2014/opel/01-27-gm-ceo-mary-barra.html

You might just strike it lucky and get one of the engineers on the original project who would help and may even have the parts.

If I was that engineer, I would try and help you.

[chrisgixer]

Hi Varche. Sadly the opel v8 prototypes all had the original box. Its rack info I need really. And this is a first attempt on an omega afaik.

Here is the v8 header on the drivers side on a left hand drive car. Add to this that the v8 engine was not in the middle, and problem with the box becomes more clear. No parts where made for a right hand drive car anyway. Or at least lingefelter never saw any.



Lingefelter are a state side tuning house specialising in the ls v8 lumps. They bought all the remaining opel v8 prototype parts from gm with the intention of selling a v8 conversion kit to catera owners with their engines. However they couldn't get the bhp out of the lump with these headers so the kit never happened. The parts where sold privately and non remain. No catera v8 builds came to light afaik. Except for Elvins ls1 build sourcing his own parts with hand made headers.


Here's some gm opel v8 pics. Note from the engine bay head on shots that the engine is of centre, away from the left hand drive steering box. As a result, very view of the useful original parts will fit a uk left hand drive car. Subframe mounts, headers especially, are all wrong.
http://www.cadillacforums.com/forums/cadillac-catera-cimarron-forum/132669-sticky-v8-omega-photo-archive.html

[chrisgixer]

Here's one of the gm parts threads. Sadly most of the pic links are missing, but the subframe is all off centre the wring way for uk cars.
http://www.cadillacforums.com/forums/cadillac-catera-cimarron-forum/117000-halleluja-catera-v8-project-underway.html

Brucee got in there though you notice.

[chrisgixer]

Also note they spent a good deal of time making sure the steering box was kept cool, both with additional cooling pipes and a vented under tray ducting air up from underneath. Not that those pics are visible. Plus's there's some debate as to weather the abs pump was a bit close to the exhaust as well. Iirc

[chrisgixer]

So, to sum up, for me there's too many compromises in the original v8 project that all revolve around the steering box. The omega body is two inches narrower than the Holdens as well. So any extra widths will help. And binning the box goes a long way to helping.

Even so, standard Holden headers will need narrowing to hug the engine more so as not to foul the omega frame rails. Without adding the extra grief of avoiding the steering box.

[aaronjb]

My vote is for a modified/thinner sump, Chris.. I reckon yours is still deeper at the tail end than it needs to be to clear the windage tray and, as Kevin says, there's plenty of GM V8s out there with the lower bell housing not attached to the block in any way, and other cars.

Grab a front sump with extra shallow rear from somewhere like Topspeed in Addlestone and it'll probably solve all your problems in one easy step.

Well, ok, that one problem anyway.

[Kevin Wood]

Yep, seconded. The webbing on the sump between it and gearbox will be there to strengthen the sump against grounding and possibly to stop it resonating. I can't see it adding anything meaningful to the gearbox<>engine interface, so if binning it avoids you having to compromise the steering setup, just do it.

[Nick W]

As the sump you have is no good for your application, it would be ideal for a mockup.
You can cut it about, and model its replacement with duct tape and cardboard. Which could then be used to compare with available aftermarket sumps. After all, you don't want to buy one and find it doesn't fit either.

[Varche]

mmm modified sump it is methinks.

[cem_devecioglu]

Chris, although time consuming and not easy , get a tig welding machine and start practice imo.. so you can build a custom sump and a custom manifold as you wish..


or ask for a shop..  304 steel will be mostly enough for the jobs..

[andyc]

Dry Sump Conversion?

[Marks DTM Calib]

Modify the sump (its only alloy and easy enough to get welded up)