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Mine is having a fair old revamp too - but I'll wait till I get it back before starting my project thread - or rather upgrading from my last project thread
Will you be taking it to the Nurburgring this year too? i plan at least 3 trips
Mine is having a fair old revamp too - but I'll wait till I get it back before starting my project thread - or rather upgrading from my last project thread
Will you be taking it to the Nurburgring this year too? i plan at least 3 trips
Cheers
Terry
thanks Terry - i did hear that yours was stepping up a few notches too
I was planning to go out 2nd -6ht april for the first trip but that is shelved now but, yes, i will be taking it over. thinking of taking a little road trip via the ring to watch the EDC boys in Poland in sept at the least to support Bladey and the boys.
Almost every 'track/race' car has an extending front splitter to counteract the inherant lift properties generated by the shape of the vehicle. Those that dont feature a venturi effect front to speed the airflow underneath. There is a reason for this
In real life testing, admittedly not by me, but on my exact model of car, the following was recorded:
Red arrows represent lift/downforce at air flow of 144km/h
Blue arrows represent lift/downforce at air flow of 200km/h
This shows the downforce on the car at speed compared to an evo. It demonstrates that the car is engineered to go light at the front with speed and thus create more understeer as this is acknowledged as being the safest for normal use. It also shows that the rear spoiler/roof spoiler/improved under floor panelling and diffuser on the 2006 STi are actually functional items.
The front splitter design will utilise well known (apparently ) Bernoulli equation:
To create a positive pressure at the front and, through the fitting of a protruding lip splitter, downwards on the lip. The ideal from research seems to be a protrusion of 3 inches to create a sizeable amount of downforce. I will be creating a degree of adjustability within the mounting points so that I can vary the amount of lip and therefore the amount of downforce so as not to upset the balance of the car. Hopefully this can be tuned at each circuit to suit the characteristics on the tracks.
Coupling this with a lower front of the car (it will be dropped by about 12mm) and a flat(er) undertray to speed the air under the engine bay (pressure drops with velocity), this will create additional suction onto the road.
The ideal will be to take Craners flat
The material/construction is currently open for debate but favourites at the moment are marine grade plywood or a composite ally/abs plate
Now that the carbon sheeting has arrived, time to make a bulkhead behind the rear seats.
Although this wont be fully fire tight as there are numerous other holes fittings that would need to be removed such as the rear selt mechanisms (what are staying for the moment) it will help reduce some of the noise of having an open boot at events and besides which it will looked darned sexy ... well if I do it right it will
First off:
Take some big sheeting. For this I got a 2 sqm sheet from our boys at CarbonMods.co.uk - great service and pricing again !
Then, remove the rear seats and make a template for the offending area from the cardboard box that the sheets came in:
Template made, now for cutting.... gulp
First little tricky bit done
No incidents so far ....
Full outline done and first test fit...
A bit more faffing around and trying to figure out a way to mark the holes for existing threaded holes to save drilling the car and here is the finished result:
Good luck with all your plans.
Have to try and get the Cambridge crew down to support you on a few rounds.
You`ll have to bring it down to one of the meets to show it off.
Whiteline Camber Bolts fitted this morning. Pretty easy job but left geometry undisturbed for the mo (as best I could)
While I was doing this I dropped the front of the car by 8mm to level it off with the rear.
Templates for canards created - not sure whether I am actually going to fit them but we will see I will cut them out this afternoon and see what they look like
I have also made the measurements for gurney flap to fit to the rear spoiler and calculations for the drawings made That should be interesting
- Nomex Balaclava
- Nomex Socks
- FIA Roll Cage padding
- Aerocatches
- looooooads of 80mm ID brake ducting
- some misc aerotek nuts and bolts that are always handy to have in the tool kit.
- some yellow electrical tape for the negative terminal on the battery
on their way to me....
- Corbeau Sprint seat from Mr APT
- Bride rails from Japan
- Roll Cage from Japan
Car goes in for the open heart transplant on Tuesday - I cant wait !!!!
Thanks to all suppliers for getting everything to me in time and for putting up with endless changes of mind (especially Mike Tuckwood & Jase)
Looking good and sounds like all your plans are going well.
I`ll spread the word at the meet on tuesday night in case any of the Cambridge crew have not seen this thread.
the carbon wing makes it look much more track focused...but imagine what it would look like with no wing and the chequered decals going over the boot...
) Bernoulli equation:
