793 replies to this topic

[turbotoaster]

Apparently if you can stand on your own splitter you win 10 internet points

 

 

Had a bit of time today so decided to make a shift spacer to get the gearknob closer to the steering wheel

Started with a length of carbon tube


And some spare 5mm aluminum


Mark out the 3 holes that hold the shifter into the floor


Drill, attack with angle grinder and bolt together


You can see how much closer it is here, currently 100mm higher, I will eventually raise that to 175mm when I remove the handbrake as it will also get the gearknob completely clear of my knees

[mbes2]

Do i get the balls to try that today? I only weigh 70kg too. I'll let you know.

Start small.. borrow a child

[turbotoaster]

You get internet points if you do it. Surely that's got to be worth the risk of breaking expensive carbon fibre doesn't it

[FLD]

"[color=rgb(40,40,40);font-family:helvetica, arial, sans-serif;]The end plates are that large because of CFD tests have shown an increase in downforce for hardly any increase in drag, this will allow me to run the wing at a less angle to achieve the same downforce hence a drop in drag."[/color]

 

[color=rgb(40,40,40);font-family:helvetica, arial, sans-serif;]Works when above as it stops spill but not so sure you need them under quite as large.[/color]

 

I believe (might be wrong) that the majority of downforce generated from a wing id from the bottom face so whilst extending up prevents spill, extending down prevents air creeping in underneath.  Obviously there's   usually a limit of down as you'd hit bodywork but you can easily go upwards.

[turbotoaster]

your right FLD, its the underside of the wing that does most of the work hence why they are so large, yes I know they look silly and if there wasnt data to prove otherwise I wouldnt run them this big. Next month we will put it to the test and see what its like on track

[FLD]

It'd be interesting to test end plate size to see where the gains drop off extending up and down.  I'd also be interested to see what happens on the rear outside corners where high pressure meets low.  I wonder if there's anything to be had tinkering there?

[Zoobeef]

Tested mine today and yes it was fine. I was thinking light thoughts to help though.

[turbotoaster]

It'd be interesting to test end plate size to see where the gains drop off extending up and down.  I'd also be interested to see what happens on the rear outside corners where high pressure meets low.  I wonder if there's anything to be had tinkering there?

 

According to CFD data 600mm seemed to be the maximum length where there was still an effect on this, they didnt test any longer as after that is was starting to flatten off.

 

What they did find though was that 400mm seemed to be the sweet spot for drag before the drag rose steeply, hence mine are 600mm length but 400mm under the wing(as they tested it) according to the book that was where the efficency was at its highest.

 

So the only thing I might do is just adjust the shape of them slightly for more aesthetics  

[chris_uk]

I know what book youve been reading lol

[turbotoaster]

I know what book youve been reading lol

 

Its a good book, I had been reading alot of different aero material before my mate lent me his book, makes things easy to understand and gave me a few ideas

 

Fitted my vxr 470cc injectors tonight, great as they were identical fitment as the stock ones, so swapping them over was pretty easy.

The spacing is about 10mm out from number 1 to number 4 which is a shame as its a nice rail.



I might be able to swap also the fuel pressure regulator from the metal vxr rail into the factory rail as they look like it will fit, just need to get a star fitting to removing the one from the vxr one.

Already got the car running aswell, did some tweaks and idles ok, though its booked in for mapping on the 30th so we can get it running properly

[turbotoaster]

Made use of the spare green paint I had and decided while I was motivated to sort out my manky manifold.

Ive got a green theme going on so I think I will get green harnesses, and maybe paint the brake calipers



just going to let it dry over night then laquer it tomorrow and stick it back on

[Nev]

Ah, I see "swamp green" is back in fashion, reminds me of the 80s... ><

[dewismotorsport]

Out of interest which book is it?

[chris_uk]

 

 

[dewismotorsport]

Ah right that's been out a while. Cheers Chris

[turbotoaster]

Ah, I see "swamp green" is back in fashion, reminds me of the 80s... ><

 

Its the same paint used as my wishbones, though ive left it 24hrs to dry and sprayed it with lacquer and its all gone funny

 

 

 

 

 

 

thats the one, we will see if its true, though I am reshaping the end plates so they look better

[turbotoaster]

Been wanting to trim my wing end plates for a while, just needed to do a little more research into end plate design, the actual area under the wing that most of the low pressure is created and also what I think looks ok.

After much reading, drawing versions in mspaint and drawing on the actual endplates i came up with these.

They keep the 400mm under the wing that I wanted

Masking tape and pen

Attack with angle grinder, first one cut out

Second one cut out

Inlet manifold put back on


Also pulled off the wing pylons, will be remaking them as I mentioned before, but while I come up with the final design painted them black

[FLD]

looking good.  I hope all the effort you've put in pays off.

[turbotoaster]

made a start on fitting my rear brakes today, had to remove some of the material from the hub to allow the bolts holding the caliper bracket on to be removed, without it every time i moved from handbrake to 2 pot calipers i would have to press the hub out and replace the wheel bearings, then bolted on the new caliper brackets


put the 308mm discs and 2 pots on


another rear shot, painted the wing pylons

[chris_uk]

will that not make a noticeable difference due to now being imbalanced?

Edited by chris_uk, 11 May 2014 - 08:00 PM.