Track forum general chit chat.

[roastbeef]

We're gunna look like pros.

[Longboarder]

Hillman House Number Stickers $1.58 each just got 6 of these BAM:

http://www.homedepot.com/p/The-Hillm...4097/100158613

[dab_of_oppo]

Alright, laugh if you want, but i have a noob question about tires. Recently up some PSS's for the M3. After an autocross session of 6 runs, in 15*C weather my front tires look like a mess. it looks like the rubber is melted into some of the siping in the tire and in some places, the rubber looks like gum stuck onto the surface of the tread. Is this normal? After a few weeks of city driving the worst of it wears off.

[roastbeef]

Originally Posted by nholmes

I've always wondered about that foil stuff in places where it can get heat soaked. Does anyone know if external air passes over the motor? Where does the hot air that passes through the coolers go? Is it passed under the car? I know zero about the aero on the E92M.

air is forced through the radiator and some is evacuated under the car in the slit in the undertray. some makes its way past the engine and escapes underneath near the headers/firewall.
i took out my passenger side hood grommet plug, so some lets out there. transmission cooler lets out right behind it in the front passenger side wheel well. intake is flushed with cool air and lets out at the driver's side hood vent.

if the undertray is missing, air simply hits the radiator and most flows beneath it and escapes under the car (path of least resistance). that is why people with damaged or missing undertrays overheat or run hot.

i'm not entirely convinced i "need" this heat reflective covering, but it is marginally functional and it was fun to do. plus, when i beat someone by .2 seconds, i get to tell them it was the heat wrap.

[roastbeef]

Originally Posted by Longboarder

Hillman House Number Stickers $1.58 each just got 6 of these BAM:

http://www.homedepot.com/p/The-Hillm...4097/100158613

the sign place i posted earlier does three 6" number and two arrows for $10. for some reason i thought it was more. i would have picked you up some, but i won't see you sat.

[nholmes]

Originally Posted by dab_of_oppo

Alright, laugh if you want, but i have a noob question about tires. Recently up some PSS's for the M3. After an autocross session of 6 runs, in 15*C weather my front tires look like a mess. it looks like the rubber is melted into some of the siping in the tire and in some places, the rubber looks like gum stuck onto the surface of the tread. Is this normal? After a few weeks of city driving the worst of it wears off.

Pics?

[Longboarder]

Originally Posted by roastbeef

the sign place i posted earlier does three 6" number and two arrows for $10. for some reason i thought it was more. i would have picked you up some, but i won't see you sat.

Good luck Saturday guys. I guess I'll see elim Sunday. Anyone else carrying over on Sunday?

[Longboarder]

Originally Posted by dab_of_oppo

Alright, laugh if you want, but i have a noob question about tires. Recently up some PSS's for the M3. After an autocross session of 6 runs, in 15*C weather my front tires look like a mess. it looks like the rubber is melted into some of the siping in the tire and in some places, the rubber looks like gum stuck onto the surface of the tread. Is this normal? After a few weeks of city driving the worst of it wears off.

Yes normal for street tires to do that.

[nholmes]

Originally Posted by roastbeef

i took out my passenger side hood grommet plug, so some lets out there.

Interesting. I'll have to look into doing this.

Originally Posted by roastbeef

if the undertray is missing, air simply hits the radiator and most flows beneath it and escapes under the car (path of least resistance). that is why people with damaged or missing undertrays overheat or run hot.

My car is missing the felt covered plastic so I'm keeping a close eye on the temps. Right now I've got hot air coming into my vents but I think it's due to me removing the cabin filter tray that sits under the hood in front of the windshield on top of the brake reservoir.

Originally Posted by roastbeef

i'm not entirely convinced i "need" this heat reflective covering, but it is marginally functional and it was fun to do. plus, when i beat someone by .2 seconds, i get to tell them it was the heat wrap.

This argument was beaten to death on the evo forums. I think if you can get "fresh" air passing over the foil to remove the ambient air it might work to help keep the plastic cooled. Otherwise the air doesn't sit inside the intake arm long enough to be heated by it.

[redpriest]

Originally Posted by dab_of_oppo

Alright, laugh if you want, but i have a noob question about tires. Recently up some PSS's for the M3. After an autocross session of 6 runs, in 15*C weather my front tires look like a mess. it looks like the rubber is melted into some of the siping in the tire and in some places, the rubber looks like gum stuck onto the surface of the tread. Is this normal? After a few weeks of city driving the worst of it wears off.

I had 50% tread left on PSS. After one day of autocross they were done. I would not use PSS for autocross unless you plan on killing them They just don't hold up to repeated stress very well.

[redpriest]

Originally Posted by Longboarder

Good luck Saturday guys. I guess I'll see elim Sunday. Anyone else carrying over on Sunday?

See you Sunday. I'll be in one of the garages.

[nholmes]

Originally Posted by silvergray545

Any of you guys run external mics on you GoPros? If so, what are you guys using?

Vale® Professional Mini USB External Microphone with Collar Clip for GoPro Hero 3 3+ 4
https://www.amazon.com/dp/B01AJBPZ9U..._.kXcxbRF2427S
Moonshuttle Standard Frame Mount(Wide Side Open) for Gopro 3 3+ + Tripod Mount + Lens Cap Bundle
https://www.amazon.com/dp/B00GLKXQ22..._ClXcxbRP9HHMS
I bought an 8' cable from radio shack so it would reach

I fed the mic through the rubber grommet next to the battery so it sits under the bumper outside the car to catch the exhaust note.

[roastbeef]

Originally Posted by nholmes

Interesting. I'll have to look into doing this.

My car is missing the felt covered plastic so I'm keeping a close eye on the temps. Right now I've got hot air coming into my vents but I think it's due to me removing the cabin filter tray that sits under the hood in front of the windshield on top of the brake reservoir.

This argument was beaten to death on the evo forums. I think if you can get "fresh" air passing over the foil to remove the ambient air it might work to help keep the plastic cooled. Otherwise the air doesn't sit inside the intake arm long enough to be heated by it.

Just pinch the grommet at the top where it connects to the hood. It doesn't damage it and it is easily put back.
On hot days you can see hot air dumping out of it at stoplights. It allows for the main fan to push air out easier.

[elim11]

Originally Posted by Longboarder

Good luck Saturday guys. I guess I'll see elim Sunday. Anyone else carrying over on Sunday?

I will only be there sat. Redprist will be there Sunday

[redpriest]

Hmmm, ever since replacing my DCT transmission fluid with Motul, once the oil gets up to temperature, first gear is pretty jerky - like it slams the clutch in, when moving from a stop. Interestingly, if I specifically set the car to neutral, then move from neutral to first, then go, it doesn't do this behavior.

[roastbeef]

Originally Posted by redpriest

Hmmm, ever since replacing my DCT transmission fluid with Motul, once the oil gets up to temperature, first gear is pretty jerky - like it slams the clutch in, when moving from a stop. Interestingly, if I specifically set the car to neutral, then move from neutral to first, then go, it doesn't do this behavior.

Ugh, F that. I'd be really annoyed.

[Longboarder]

Originally Posted by redpriest

See you Sunday. I'll be in one of the garages.

Cool. Yeah I got a garage space as well - will be next to my buddy with a 911 Turbo vert that runs mid 1:40s

[roastbeef]

Finished up the wrap job. Can't hardly see any gold when everything is together. Part of the engine bay gets a nice gold hue when in the sunlight though.

[nholmes]

Originally Posted by roastbeef

Finished up the wrap job. Can't hardly see any gold when everything is together. Part of the engine bay gets a nice gold hue when in the sunlight though.

That CF intake is stock though, right? I don't see your CARB EO number anywhere.

[elim11]

Finishing touches. See y'all sat. Charge up your gopros

[nholmes]

Originally Posted by elim11

Finishing touches. See y'all sat. Charge up your gopros

That spring looks like it's been making love to your tire.

[roastbeef]

Originally Posted by nholmes

That CF intake is stock though, right? I don't see your CARB EO number anywhere.

I'm going to tell the smog guy it came with the competition package...
I kept my factory intake just in case.