That looks like a serious piece of kit mate! Love it!

It is beautifully engineered peace of kit.

Front wing skinned and foam filled in the leading edge for dent resistance, just needs the edges trimming ready for the sideplates fitting then it can be finished off:

More upgrades today after some testing - and a few teething issues (you know, the normal sheared bolts, oil all over the floor, nearly breaking wrists trying to hold steering wheel against the P/S going nuts) - but I forgot to take pictures, sorry.
The venerable old 106/Saxo pump unit for the power steering system is finally retiring from service, in favour of a more powerful new unit with a solid-state electronic controller.
We now have more fluid flow at full power - which is welcome as with a very short ratio steering rack (a single turn lock-to-lock) the old pump could sometimes lag behind the wheel input in tight corners.
In addition to that it can vary it's speed to hold a target pressure vs loading - so we use a lot less electrical power the rest of the time, including a low speed/low power automatic idle mode when the steering isn't in use such as queueing for a stage start. Might not sound like a big benefit but it's a little more horsepower from the engine due to the lower electrical load, and it eases the strain on the alternator as although we run a large 160amp unit to keep up with the various heavy loads, it still doesn't have much spare when everything is running.
We also have other niceties such as built in fluid filters/air removal chambers and baffled pump inlets to prevent any dirt or air getting sucked into the system whilst bouncing around over the rough.
Anyway, testing today showed everything worked well....eventually anyway...so now we just need to make a new tank for the PAS fluid to suit and perhaps some upgrades to allow a control knob to enable quick switches between various assistance settings (not so much for our car but might be fitting a few to other racers which require more/less pressure).

TL:DR - New P/S pump. Works better than old pump. Is shinier.


Also not mega happy with the throttle response off idle with the amount of charge piping to fill and the charger, despite making a few mapping changes to improve it, got a few more tricks to try but I might look at a bypass valve just to help things at low loadings.

An interesting write up. Long charge pipes do and can be a problem a twin turbo set up or a extra blower mean more problems. Looking forwards to seeing the finished item.

Yeah, I don't think it's much of an issue once it's actually under some load, but at very low rpm and blipping the throttle to shift gears it's too slow.

 

Sorry mate, but just thinking of your very first sentence on this fantastic thread . . . .

And then you posted this . . . .

Works better than old pump. Is shinier.

Seems our work here is done 

And you are now OFFICIALLY part of the Shiney Side   

 

If it's any help I've just had the front bumper and side rails plated in shiny silver zinc too. 

If it's any help I've just had the front bumper and side rails plated in shiny silver zinc too. 

Stop it, think of all the polishing

I`m telling the Baja Club . . . .   

And just in case you hadn't had enough of half finished wing pictures yet....another rear element skeleton built up awaiting foam + skinning:



Also decided to draw 'em up properly in CAD rather than just a skin - means I can work out where best to put the slot gap spacers then. Hoping to get away with a single centre one just to keep things where they should be:

Miles away from an accurate model (or loading scenario, need to model endplates and the skins first, never mind the bonds, fillets and foam), but just a quick check on the skeleton (which is much less stiff than the built up wing) shows the overall deformation is acceptable as is. So probably loose the slot gap seperators and just have a few elements on the pressure side to stop spanwise flow instead. Should be enough by themselves to stiffen the thin trailing edge.

However, definately a picture for the shiny side 

Did some more simulation work on the rear wing overnight - I think a stiffer endplate may be required....

http://img.photobucket.com/albums/v89/Rippthrough/RearWingEnplatesHFDP.jpg

Also. Wing may not be effective at speeds over 250mph. Must remember to back off a little in 5th....

New PAS pump is finished and in, old relegated Peugeot pump sulking in the background...



Mounting bracket - think Ed got a set of holesaws for Christmas...

Obviously Ed is conscious of the effect of carrying extra weight.