Wierd Dust Queston

[timcantwell]

Since it was so rainy at VIR last week, I needed an FGT track fix and drove about 125 miles on my home track - Nelson Ledges today. The FGT ran great!!! I gave rides to corner workers who have worked tirelessly all season and had fun. However, I noticed a black dust on my rear bumper and facia that I never have seen before. I also noticed that out of turn 13, a slow right-hander that leads to the front straight (and therefore is a pedal-to-the-metal corner exit) that the rear end "chattered", kind of like traction control was kicking in. Note that it was not loss of mechanical tire grip, as I typically rotate the car/tires on that exit. I assumed that the chatter was the differential - limited slip. With the black dust I am wondering if my clutch isn't up to the task of the sticky Hoosiers on a race course. Any thoughts and ideas? I attached a photo of the dust with my fingers running through for contast.

 

[Mullet]

I get that on mine. I'd say it is a combination of exhaust and tire dust

 

[Triheart7]

I get that on mine. I'd say it is a combination of exhaust and tire dust

I have noticed the same after track sessions! Think Mullet is correct!

 

[Fubar]

If your clutch were giving out, you'd definitely smell it first. You may have just dislodged some accumulated dust in the clutch housing. I recommend several more track excursions to research the issue further.

 

[dbackg]

I get that on mine. I'd say it is a combination of exhaust and tire dust

+1

However, it might be the pollution Toledo produces. Lol.

Another reason why black is the best!

I believe this never happens to GT's that are permanently parked in the garage either.

 

[BlackICE]

I believe this never happens to GT's that are permanently parked in the garage either.

Are you refering to EP?

 

[nota4re]

Tim,

I think that is tire dust - from your Hoosier's and perhaps some rubber already on the track.

 

[Neilda]

I think all of us get that, and it's the same with other cars too.... a combination of tire dust, particulates from the exhaust (sticking by static), road dust, brake dust, moon dust, angel dust etc

 

[HHGT]

While Kendall was changing my oil last weekend, he showed me some normal clutch dust that weeps out from where the transaxle and the engine come together. I would imagine Tim that if you wanted to make sure it was not clutch dust, you could remove the diffuser pan and do a visual inspection to determine the amount of clutch dust deposits and put your mind at ease.

Cheers!

 

[timcantwell]

I'll pull the pan and take a peek. Good idea.

 

[Mase]

Tim,

I dont think that is clutch dust. Exhaust/Tires for sure.

 

[FLY GT40]

Since it was so rainy at VIR last week, I needed an FGT track fix and drove about 125 miles on my home track - Nelson Ledges today. The FGT ran great!!! I gave rides to corner workers who have worked tirelessly all season and had fun. However, I noticed a black dust on my rear bumper and facia that I never have seen before. I also noticed that out of turn 13, a slow right-hander that leads to the front straight (and therefore is a pedal-to-the-metal corner exit) that the rear end "chattered", kind of like traction control was kicking in. Note that it was not loss of mechanical tire grip, as I typically rotate the car/tires on that exit. I assumed that the chatter was the differential - limited slip. With the black dust I am wondering if my clutch isn't up to the task of the sticky Hoosiers on a race course. Any thoughts and ideas? I attached a photo of the dust with my fingers running through for contast.

Tim
Diagnosis: Fun dust
Definition: Dust accumulation from exhaust, tires,track or road dust in the wake of car after going out for a spirited run. Kind of like sweat after a good work out. Good job keep it up.:cheers

 

[MTV8]

Just looks like you have been enjoying the car.

 

[Team Jeff]

Tim, I've experienced the same sort of "dust" - often times some of it is stuck on the paint & I end up using cleaner wax or bug & tar remover to clean it all off. Glad your enjoying the fastest of all the colors.

 

[timcantwell]

Tim, I've experienced the same sort of "dust" - often times some of it is stuck on the paint & I end up using cleaner wax or bug & tar remover to clean it all off. Glad your enjoying the fastest of all the colors.

I agree, I just haven't tracked it enough to know. It is running a bit richer with different timing than the stock tune, which also changes things. I was getting 4 MPG on the track. Three fill-ups during the day!