Track forum general chit chat.

rhyary · 02-14-2021, 03:31 PM

Quote:

Originally Posted by leftfootbr8king

Quote:

Originally Posted by sc_tr0jan_m3

Quote:

Originally Posted by leftfootbr8king

If an NT01 is a fair baseline for what 100tw is, RR is a fair baseline for what a 40tw tire is. It's a few seconds faster over a 2 min lap than NT01. AO52 is a bad baseline for what 200tw is, and is likely closer to 40tw. It's basically an RR with a little tread, that wears worse, but quite a bit more expensive. It doesn't compute.

People talk about the AO52 being shot after 3 track days. I haven't tried them because there is literally zero reason when the RR exists. They aren't going to be faster. They aren't going to last longer, and they aren't going to cost less.

I can get 4-5 days out of a set of RR's (25ish heat cycles). They are typically their fastest right at the end, and when it's over it's over. I like that lap time curve in a DE tire. Get's faster and faster until it dies, unlike the tires that start fast and decline in grip all the way to the cords.

Do they suck in the wet? oh yea. I either swap to my street tires for wet track days or if it's just damp keep em on, getting free laps with little to no tire wear and work on catching slides/car control.

good to know. thanks for the comparison. i might have to put the RR back on the "to try" list after the S3R.

i never tried the A052's because they drop off too fast. i need a tire that has some life to it since i go to the track at least twice a month.

I've got some dhhb scrubs from BW to try next after my RR's are done (after my next weekend at the track, eom).

There is very little info out there, and I'm not even entirely sure what they are. Hard Hard? When I called BW there were surprisingly unhelpful as to what they even were for a compound. Idk, but the price tasted nice and they look to be in pretty decent condition. So cheap they'd make rhyary blush. Alas, they don't sell 19" sizes so he won't be pulling from my supply.

yep, you are lucky, I am out of the running foe 18".

I am busy figuring out how many 285/30/19 RE50A for $134.00/tire do I want. I am fully stacked on the rears

Grip Addict · 02-14-2021, 09:45 PM

So I am thinking of hitting up a 1/2 mile event in my area.

I know people get real serious about trap speeds and being within the set roll speed, but I have done it in the past and took off higher than the set speed and stayed in it for like a bus length just to see if I could hit a personal top speed best.

I managed s top speed of 139 mph at a 1/3 mile event rolling from probably 70-75 mph when it should have been 60-65 mph and ending at about a bus length after the trap speed sensors.

I think the 1/2 mile event is from a dig, but where should I be able to get my M3 in a 1/2 if I just stay in it a bit (safely of course).

Shmelgy · 02-15-2021, 12:11 AM

Quote:

Originally Posted by Dreamer99

I've been running the AR-1 in 295/30/18 on a 10" rim and they fit the rim nicely. How would the same size RR compare in width?

Attached pics show how much the 295 RR poke on 18x10 apexs, as well as compared to 305 Pirelli dh

Bartledoo · 02-15-2021, 12:35 AM

Quote:

Originally Posted by Shmelgy

Attached pics show how much the 295 RR poke on 18x10 apexs, as well as compared to 305 Pirelli dh

That's wide!

Vybz · 02-15-2021, 02:22 AM

wow... I'm actually shocked at how narrow 305 Pirelli DH is. Was not expecting that.

rhyary · 02-15-2021, 04:44 AM

Are the DH And RR even on the other side?
that means it will be half of that difference toward the shock and the fender

dparm · 02-15-2021, 11:50 AM

Quote:

Originally Posted by OG Shark

Yeah definitely could be

COTA is going to be slick again. Was starting to rubber in from the winter wet/snow but guessing this is going to be another reset.

At this point, the Friday morning sessions will be in the high 30s or low 40s. Might be a day of just driving at 8/10ths and focusing on refining my racing line, maybe even experimenting with the new flat-tune to see if I need to change shift points.

Shmelgy · 02-15-2021, 01:48 PM

Quote:

Originally Posted by rhyary

Are the DH And RR even on the other side?
that means it will be half of that difference toward the shock and the fender

Yeah, up against a wall

tsk94 · 02-15-2021, 02:33 PM

Quote:

Originally Posted by Shmelgy

Yeah, up against a wall

Wow, that's a bigger difference then 295 RR's and 275 NT01's lol.

I've run both on 10" wheels and the difference is close, but I believe a bit smaller then what you've shown here.

305 take-offs would be easy to fit if I/anyone can fit 295 RR's.. surprising.

fsmtnbiker · 02-16-2021, 07:55 AM

Quote:

Originally Posted by leftfootbr8king

People talk about the AO52 being shot after 3 track days. I haven't tried them because there is literally zero reason when the RR exists. They aren't going to be faster. They aren't going to last longer, and they aren't going to cost less.

While I’m no fan of the A052, they are definitely faster than the RR. Shorter lived, worse with heat, basically worse in every possible metric... but the A052 is definitely a faster tire than the RR.

rhyary · 02-16-2021, 08:12 AM

I have 4 x RE50A 285/30/19 en route from Tire Rack for $135/tire plus tax for new 2018.

This is a tire I tried on the front last last year and it produced the fastest time at NYST for a max performance. While I am not advocating for this tire to be the fastest, or best, or current technology, it is worth noting that i did full two and a half days on a very abrasive track. So it had excellent longevity.

Not sure how long the price will last, but you it is worth checking if you are in the market.

leftfootbr8king · 02-16-2021, 11:48 AM

Quote:

Originally Posted by fsmtnbiker

Quote:

Originally Posted by leftfootbr8king

People talk about the AO52 being shot after 3 track days. I haven't tried them because there is literally zero reason when the RR exists. They aren't going to be faster. They aren't going to last longer, and they aren't going to cost less.

While I’m no fan of the A052, they are definitely faster than the RR. Shorter lived, worse with heat, basically worse in every possible metric... but the A052 is definitely a faster tire than the RR.

Interesting. I haven't heard that before. Maybe it's just because there aren't that many people who have run both tires sufficiently to speak to it. Thanks for the insight.

Ximian · 02-16-2021, 04:05 PM

Quote:

Originally Posted by rhyary

I have 4 x RE50A 285/30/19 en route from Tire Rack for $135/tire plus tax for new 2018.

...

Not sure how long the price will last, but you it is worth checking if you are in the market.

Rear: 275/35R19 100Y XL
2018 Production
Qty: 1

Not many left.

StripclubDJ · 02-16-2021, 10:40 PM

Roastbeef got coilovers

So fuck it

StripclubDJ · 02-17-2021, 12:02 AM

I guess I gotta blow my vape smoke out of the side windows now

:

turbo_joe · 02-17-2021, 07:14 AM

Quote:

Originally Posted by StripclubDJ

Roastbeef got coilovers

So fuck it

I did the same thing

slowdown_dan · 02-17-2021, 09:44 AM

Nice to know I'm not alone. I was starting to feel like I was the only dipshit with a sunroof'd e92 m at the track. like they made a total of (1), and it was mine.

I ask myself often: WHY DIDNT I MAKE THE CF ROOF A PRIORITY WHEN I BOUGHT THIS THING??

DRLane · 02-17-2021, 09:48 AM

Quote:

Originally Posted by butte2butte

Nice to know I'm not alone. I was starting to feel like I was the only dipshit with a sunroof'd e92 m at the track. like they made a total of (1), and it was mine.

I ask myself often: WHY DIDNT I MAKE THE CF ROOF A PRIORITY WHEN I BOUGHT THIS THING??

Haha, right there with you! My M3 was a bit of an impulse and then I had no idea I'd get into tracking. Mrs Riker is still 😠.

Installed mine a week ago.

slowdown_dan · 02-17-2021, 10:13 AM

What are you guys doing for headliners? I assume just keeping the factory sunroof headliner in place?

turbo_joe · 02-17-2021, 10:29 AM

Quote:

Originally Posted by butte2butte

What are you guys doing for headliners? I assume just keeping the factory sunroof headliner in place?

I plan to rip mine out completely

DRLane · 02-17-2021, 10:30 AM

Quote:

Originally Posted by butte2butte

What are you guys doing for headliners? I assume just keeping the factory sunroof headliner in place?

I kept mine. Which I didn't realize how low it was until I installed a half cage intended for the carbon headliner. Is pressing up on the liner.

If it was easy to find the other liner I'd swap it, but for foreseeable future this works fine.

I also applied a bead of RTV black when installing and another bead from above to be 100% confident about water.

DRLane · 02-17-2021, 10:33 AM

Quote:

Originally Posted by turbo_joe

Quote:

Originally Posted by butte2butte

What are you guys doing for headliners? I assume just keeping the factory sunroof headliner in place?

I plan to rip mine out completely

This makes the most sense depending on class restrictions regarding interiors.

02-14-2021, 09:45 PM	#16084
Grip Addict Banned 1082 Rep 713 Posts Drives: ///M3 Join Date: Jun 2018 Location: PA iTrader: (9)	So I am thinking of hitting up a 1/2 mile event in my area. I know people get real serious about trap speeds and being within the set roll speed, but I have done it in the past and took off higher than the set speed and stayed in it for like a bus length just to see if I could hit a personal top speed best. I managed s top speed of 139 mph at a 1/3 mile event rolling from probably 70-75 mph when it should have been 60-65 mph and ending at about a bus length after the trap speed sensors. I think the 1/2 mile event is from a dig, but where should I be able to get my M3 in a 1/2 if I just stay in it a bit (safely of course).
	Appreciate 0 Quote

02-15-2021, 02:22 AM	#16087
Vybz Captain 134 Rep 673 Posts Drives: Adidas and Puma Join Date: Sep 2010 Location: Kitsap County, WA iTrader: (10) Garage List 2012 BMW M3 [8.60]	wow... I'm actually shocked at how narrow 305 Pirelli DH is. Was not expecting that. __________________ Highway Star Garage / Ruined Luxury Auto InstaGram: Ruinedluxury_vybz NA1 NSX - Storage 2nd Gen Taco - Daily
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02-15-2021, 04:44 AM	#16088
rhyary Colonel 1573 Rep 2,871 Posts Drives: 2013 M3 Join Date: May 2015 Location: Albany, NY iTrader: (0)	Are the DH And RR even on the other side? that means it will be half of that difference toward the shock and the fender
	Appreciate 0 Quote

02-16-2021, 08:12 AM	#16093
rhyary Colonel 1573 Rep 2,871 Posts Drives: 2013 M3 Join Date: May 2015 Location: Albany, NY iTrader: (0)	I have 4 x RE50A 285/30/19 en route from Tire Rack for $135/tire plus tax for new 2018. This is a tire I tried on the front last last year and it produced the fastest time at NYST for a max performance. While I am not advocating for this tire to be the fastest, or best, or current technology, it is worth noting that i did full two and a half days on a very abrasive track. So it had excellent longevity. Not sure how long the price will last, but you it is worth checking if you are in the market.
	Appreciate 0 Quote

02-16-2021, 10:40 PM	#16096
StripclubDJ Lieutenant Colonel 4102 Rep 1,612 Posts Drives: e92 m3 Join Date: May 2016 Location: calis iTrader: (2)	Roastbeef got coilovers So fuck it Attached Images
	Appreciate 6 DRLane3996.00 roastbeef11593.00 Bartledoo2691.50 slcook541863.00 911r907.50 Epoustouflant1164.00 Quote

02-17-2021, 12:02 AM	#16097
StripclubDJ Lieutenant Colonel 4102 Rep 1,612 Posts Drives: e92 m3 Join Date: May 2016 Location: calis iTrader: (2)	I guess I gotta blow my vape smoke out of the side windows now :
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02-17-2021, 09:44 AM	#16099
slowdown_dan First Lieutenant 286 Rep 304 Posts Drives: e93 Join Date: Jan 2020 Location: FLORIDA iTrader: (0)	Nice to know I'm not alone. I was starting to feel like I was the only dipshit with a sunroof'd e92 m at the track. like they made a total of (1), and it was mine. I ask myself often: WHY DIDNT I MAKE THE CF ROOF A PRIORITY WHEN I BOUGHT THIS THING??
	Appreciate 5 DRLane3996.00 Bartledoo2691.50 slcook541863.00 turbo_joe1618.50 Kelse921133.50 Quote

02-17-2021, 10:13 AM	#16101
slowdown_dan First Lieutenant 286 Rep 304 Posts Drives: e93 Join Date: Jan 2020 Location: FLORIDA iTrader: (0)	What are you guys doing for headliners? I assume just keeping the factory sunroof headliner in place?
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