924S Brake Venting?

[Mmagus]

I am prepping Tuffy (my 924S) for my first TT. I have been told that a good way to help ensure better breaking is to vent them. Welllll....I have laid under the front end for quite some time...repeatedly...and I just can not see a way to route vent tubes or mount air scoops, everything is just SO tight in there. The only small possibility I can see is to somehow mount a scoop on the side of the tow attachment areas, maybe. Anyone have experience at this particular process?

Thanks!

[mrondeau]

Most people vent from the turn signal or fog lights to the brakes. There are kits available for that and there are some DIY techniques also. I found that running a track brake pad (Hawk or Porterfield) in the front helped the most since 944/924S cars don't go very fast even when they're "Flat Out". Spring Mountain is the only track I've noticed any braking issues on my car and that was with street pads and two drivers. Once I changed the pads, problem was solved.

For BW, I would make sure that the brake system is bled and that you run a better brake pad on the fronts. Looking forward to seeing you and Tuffy there.

[Mmagus]

Thanks Mark The turn signal is an option to consider, I will be going DIY for it and was just hoping to mount something elsewhere to avoid having to take them out. I will research that option more fully. I believe that Morgan installed Hawks on Tuffy and I have high temp fluid on the list of thigs to do before heading up.

I am really lookng fowrard to it!

Mark

[MTrotter]

Porterfield RS-4's

I doubt you will have issues with brake fade due to heat, but you can insure you dont have problems by bleading the brakes before hand and removing the turn signals and taping the wires away.

[harnishclan]

First don't like your spelling of "break" since that seems to be happening to my car a lot of late.

I used the foglight into a three inch silicone hose to a backing plate on the spindle that directed air onto the backside of the rotor. Total cost about $90 and 2 hours. Make sure if you use hoses to clearance them away from tires at maximum turn and secure them well.

[ChuckS]

On a car as light as a 924S using Porterfields, with a good, fresh brake fluid, you won't have any problems (SOW is only concern as there are no long straights to cool the brakes down). If you were running street pads, even a cooling duct won't be enough. The pads and fluid are 90% of the battle, with external cooling being around 10% on a 924 or 944.
As an alternative to the "tube from the turn signal" venting route, you can get the 968 cooling ducts that just bolt on to the backing plate mount and to the bottom of the control arm and scoop air from under the car.
This is a much easier, but not quite as effective method.
Best of luck with it - even though you don't need to do it with Porterfields and Ate Blue or equivalent.

[Mmagus]

Thanks all for the advice...update on pad info...and notes on my spelling It really makes me feel a lot better about this issue. I am trying to attend my first big track event as prepared as possible so I can just concentrate on driving.

[Dan Chambers]

Mark (The Faster Pastor):

I've DIY'ed venting my front rotors for years using 2.5" "Shopvac" hoses purchased at Home Depot and "innovative" inlet systems.

On my white 944, I cut out the "blocked" valance openings to the sides o the bottom slots and inserted Funnels (cut to fit the 2.5" hoses) to trap fresh air above the surface level of the track.

On my 911, I've developed a "remove the fog light/insert the fitted scoop" system for front-bumper fresh air to the hoses. Both systems have worked exceptionally well.

On both cars I use Porterfield R-4 pads up front (R-4S pads rear)

While all the shop guys/technicians have laughed and snickered at my "poor-man's" venting system (Shopvac parts/funnels/zip-ties), I've had the last laugh with venting systems that cool the brakes for less than 1/10th the cost of the systems you buy on-line or in speed shops. And as an extra added bonus: if my venting system is damaged or torn from the car, a quick visit to any Home Depot remedies the fix, and I'm back on the track at full speed. A little innovation and a fist full of Zip-Ties will keep me driving.

So, laugh as you will, I'll save my $$ for entry fees.