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The connector to the back of the instrument cluster (pn 999.650.508.40) gets fragile with age.... It breaks easily.. very easily.... And Porsche does not carry it anymore, fortunately VW/Audi does its part number is 1J09729770.
I was able to successfully disable the HVAC and Infotainment systems as well as airbags, seats (and the AWS scales built into each seat), and windows with Durametric pro.
With the systems disabled, I was able to remove over 15 lbs of wire and 5 circuits from the fuse panel, not to mention greatly simplifying the wiring harness. There is probably 5 or 10 more pounds of wire that could be pulled, but I took the conservative route.
No new lessons learned...
At this point have the car stripped to the chassis.
Transmission is off to be rebuilt
All suspension parts that will be reused have been bead blasted and dye checked for cracks..
Order placed with Tarett for the performance parts and Suncoast for replacement OE pieces (axles, bearings, new bolts etc)
Brake duct mock-up is done. After days of trial fitting and agonizing over this, this is what I came up with. There are still some tweaks to be done, need to replace the steel duct, with a little 45 bend to clear the tie rod better....
Ultimate requirement was to feed clean air to caliper and to the rotor eye. I've seen a bunch of options (like the GT3 scoops) that get turbulent air into the wheel well, but none that actually get clean air to the rotor eye.
Before I finalize this, feedback would be appreciated..
Im not sure you will see a difference, but it does look good.
The best thing to do is to install a big air blower in front trunk and get tim olsen brake duct.
Why are the Olen duct are better? Seems to me they aren't capturing any high pressure air at all, so noting to force air down the duct.
I don't like the 90 deg bend, but there is no escaping that... What is missing from the pic is the naca duct in the radiator shroud that will feed them so I get a little bit of pressure down the line.
This looks really neat but I’d be cautious about fixing a problem that does not exist. I have yet to hear anybody complain about brake cooling issues on an SPC. I’ve never had an issue on my old car, even with stock brakes. You are adding a lot of cool stuff to the car but be mindful of your weight. I am sure you’ve figured it all out but you want to be within 10-20 lbs of minimum weight with driver at min fuel to be competitive.
This looks really neat but I’d be cautious about fixing a problem that does not exist. I have yet to hear anybody complain about brake cooling issues on an SPC. I’ve never had an issue on my old car, even with stock brakes. You are adding a lot of cool stuff to the car but be mindful of your weight. I am sure you’ve figured it all out but you want to be within 10-20 lbs of minimum weight with driver at min fuel to be competitive.
I have spoken with a couple SPC drivers who had brake cooling issues at Road Atlanta despite running aftermarket discs, GT3 ducts, endurance pads and SRF.
Now that the series is likely to go with grippier Hoosier R7 tires, the brake issues might be even more of a concern.
With the min weight at 2950lbs, there is plenty of room for brake ducting without worrying about a weight penalty.
01-18-2018, 10:33 PM
Spec Cayman Build
