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crap like air bags, seat heaters, abs, stereo removed.

I like the way you're thinking! 

Similar to my choice.
Air Bags.  Gone
Seat heaters  Keep
ABS Gone 
Immobiliser Keeping.

Will you be using the full loom in Rotus with the factory immobiliser.

Does your box of wizardry control the ECU or just the speedometer side. 

Spot on mate and with the catch tank drain dont think any oil starvation or burps.. i take 1 for an fd please

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Lol lemme test this one out at Combe and yeah I'd make you one.

The rx8 performance one is made from 6mm thick aluminium.

I chose 3mm stainless for the flange and base and 2mm on the sides.

I read on t'internet that custom sheet aluminium welded sumps can go soft from the heat of the oil. Which I guess is fine on a piston engine and the block can keep it all in check.

But I guess with a rotary and all the sandwich of parts to make the engine, a soft aluminium sump won't help in stopping the torsional twist. I guess only a problem on boosted high hp motors, which I don't have, but no problem in adopting the same principles.

The stock sump is 1.2mm so this thing is a bit weighty in comparison. But the weight is as low down as can be so I'm not too concerned.

Being 3mm flange I'm hoping it will serve the same purpose as these sump braces you can get to stop leakage on flimsy stock sump flanges.

Just my take on it all ... who knows. lol


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From what I've gathered about Hi Powered Rotarys.
Virtually all the torsional twist is eliminated by using thicker studs and ARP nuts with solid dowels.
Note a external oil supply is needed for a full solid dowel kit.
There plenty of videos from the Rotary Gurus.

https://youtu.be/RhE3alGMAwA

Love this project.
Watching and waiting for the wiring to be done.

Do you know what ECU you will be using.