Autocross Videos - Tips and Discussion - Page 18

Cito · 10-04-2018, 09:18 AM

Will having a taller front versus rear tire mess with the 1LE's computer/electronic systems?

apexit53 · 10-04-2018, 09:20 AM

Quote:

Originally Posted by Cito

Will having a taller front versus rear tire mess with the 1LE's computer/electronic systems?

Shouldn't. The car does need to be driven to that the sensors can "learn" the new tire sizes. that just takes a short drive over 40mph and maybe some good amount of braking.

Cito · 10-04-2018, 10:48 AM

Cool. Thanks. I was planning on running 305's square, but I do not live in a place where anyone is going to go out of their way to mount them on a 10" rim if it is difficult at all. I know it is possible because it has been done, but I watched the guy at Nationals unsuccessfully struggle to mount a 305 on a 10" rim for quite a while and he was giving a better effort than anyone I have locally would.

apexit53 · 10-04-2018, 01:05 PM

Quote:

Originally Posted by Cito

Cool. Thanks. I was planning on running 305's square, but I do not live in a place where anyone is going to go out of their way to mount them on a 10" rim if it is difficult at all. I know it is possible because it has been done, but I watched the guy at Nationals unsuccessfully struggle to mount a 305 on a 10" rim for quite a while and he was giving a better effort than anyone I have locally would.

yeah im lucky i work at a shop... it doesn't make them easier to mount but at least that way im pissing myself off rather than someone else lol

Scargoes · 10-04-2018, 05:16 PM

Quote:

Originally Posted by jwisjw

I would go with the 285/35/19 and 305/30/19 combo on the 1LE width wheels instead of 305's based on my testing with the RE-71R.

Since I do not have 19" wheels yet and would be ordering something up to fit my needs. What would you recommend? This would be for Autocross and track days.

19x10 or 19x10.5 (same front and rear)and 285/35 RE71R
19x11 F&R with 305/30 RE71R
Factory size with 295/30R20 RE71R

It's been about 12 years since I autocrossed last. And boy what a change of vehicles since then (GLHS Omni and a 1st Gen RX-7). The last El Toro event was my first in the Camaro. I ram in CAM-C because so much has changed since before. But I'm not building this Camaro for any class, It's a toy for me to enjoy at autocrosses and track days. So I'm not worried about fitting in anywhere.

Best run of the day for me (53.6xx). I didn't get a chance to swap over to the Goodyear tires so I ran on the Conti ExtremeContact Sport. Yes, I know I'm slow and that I wasn't pushing the car that hard.

Sept 30th 18 El Toro SS 1LE 4th run

rotis · 10-04-2018, 09:40 PM

Run 19x10 / 19x11 if you want to stay legal to run in Street class.

Roostie · 10-04-2018, 10:46 PM

If you don't care about classing, a square setup is good for handling, tire rotation and tire longevity. If you deal carefully with clearance, the 19x11 may work. 19x10.5 square is more common. I think you'll find that CAM-C is a fun place to play.

I am running 18x10 on my V6 LS 1LEl with cheap Nexen NFERA SUR4 tires that seem to be working well (not that I have compared them to anything else).

jwisjw · 10-08-2018, 04:35 PM

For all you California people, PCA had an event at the Minter Airport located near Bakersfield... Might be a future venue.

Wasn't expecting to have solo time trials hosted there though. The start along with the finish section allowed for some tuning on steady state and turn in, maybe with some "high speed" stability testing... Though the surface was really dusty so might have to take things with a grain of salt. Heikotter was in a STU EVO and drove a slightly faster course but was still a second or so off the Camaro. <3 HP

STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Jeff

STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Nicole

apexit53 · 10-09-2018, 07:59 AM

Quote:

Originally Posted by jwisjw

For all you California people, PCA had an event at the Minter Airport located near Bakersfield... Might be a future venue.

Wasn't expecting to have solo time trials hosted there though. The start along with the finish section allowed for some tuning on steady state and turn in, maybe with some "high speed" stability testing... Though the surface was really dusty so might have to take things with a grain of salt. Heikotter was in a STU EVO and drove a slightly faster course but was still a second or so off the Camaro. <3 HP

STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Jeff

STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Nicole

well that looks like some butt clinching terror!

slvrsrpnt · 10-09-2018, 02:06 PM

Wow, that one confused the heck out of me!

apexit53 · 10-10-2018, 01:31 PM

video from our last local event of 2018!

on to 2019!

weighing out a few options but im thinking about selling or trading in my 2017 for a 2019 1SS. Some brake re calibrations done by the Sean Bailey and the awesome GM performance driving team might force my hand in buying a 2019... hopefully this means less or no more icemode or hard pedal!

jwisjw · 10-15-2018, 01:44 PM

Saving our most treaded tires for the upcoming Fontana SCCA events and got creative with the left over F-Street tires. We ended up running PCA this weekend with 265/285's on 9.5/11" wheels. Surprisingly with all the changes optimizing the car, the less ideal tire configuration still provided decent times. Only reference was Ken Motonishi which was driving the winning STR ND at Solo Nationals(similar tire conditions to what we had) and one of the brand new GT3's on Bridgestones that would be SS legal.

STP Camaro - 54.4
STR ND - 54.3
SS GT3 - 53.9

STP 2017 Camaro Bridgestone RE-71R El Toro 10/14 PCA Event Jeff

STP 2017 Camaro Bridgestone RE-71R El Toro 10/14 PCA Event Nicole

Cito · 10-18-2018, 10:06 AM

This past Sunday, we ran in the cold with drizzle that was persistent enough to keep it wet. With wet in sub-40's temperatures on stock SS 1LE tires, the car was near impossible to drive. Experimented with multiple settings as well as with all the nannies off and ended up doing best with it set on track with wet performance mode.

My driving, especially throttle inputs, leaves a lot of room to do better. So, I'll take credit for sucking, but it was about the most frustrating day of autocrossing I have ever had. I need a better plan for the next time this happens, and am wondering if anybody has found settings that seem to optimize the car for an admittedly bad situation.

My belief is that the RE-71's would have performed better in this temperature range (especially with the wet) than the stock tires. It was like driving on PVC pipe. Considering going with a set of continental's, PS4S, or S007A's for the stock wheels and Re-71r's on 19's to have more options in the cold and wet.

rotis · 10-18-2018, 01:08 PM

I've autocrossed on RE71's in the low 40's before, they aren't great, but they work significantly better than the stock tires.

10-08-2018, 04:35 PM	#246
jwisjw Drives: 2017 Camaro SS Join Date: Sep 2017 Location: Arizona Posts: 157	For all you California people, PCA had an event at the Minter Airport located near Bakersfield... Might be a future venue. Wasn't expecting to have solo time trials hosted there though. The start along with the finish section allowed for some tuning on steady state and turn in, maybe with some "high speed" stability testing... Though the surface was really dusty so might have to take things with a grain of salt. Heikotter was in a STU EVO and drove a slightly faster course but was still a second or so off the Camaro. <3 HP STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Jeff STP 2017 Camaro Bridgestone RE-71R Minter Airfield 10/7 PCA Event Nicole __________________ Jeff Wong ESP Camaro Last edited by jwisjw; 10-08-2018 at 04:45 PM.

10-15-2018, 01:44 PM	#250
jwisjw Drives: 2017 Camaro SS Join Date: Sep 2017 Location: Arizona Posts: 157	Saving our most treaded tires for the upcoming Fontana SCCA events and got creative with the left over F-Street tires. We ended up running PCA this weekend with 265/285's on 9.5/11" wheels. Surprisingly with all the changes optimizing the car, the less ideal tire configuration still provided decent times. Only reference was Ken Motonishi which was driving the winning STR ND at Solo Nationals(similar tire conditions to what we had) and one of the brand new GT3's on Bridgestones that would be SS legal. STP Camaro - 54.4 STR ND - 54.3 SS GT3 - 53.9 STP 2017 Camaro Bridgestone RE-71R El Toro 10/14 PCA Event Jeff STP 2017 Camaro Bridgestone RE-71R El Toro 10/14 PCA Event Nicole __________________ Jeff Wong ESP Camaro Last edited by jwisjw; 10-15-2018 at 04:49 PM.

10-04-2018, 09:18 AM	#239
Cito Drives: 2017 Camaro SS 1LE Join Date: Jun 2018 Location: Mason City, Iowa Posts: 37	Will having a taller front versus rear tire mess with the 1LE's computer/electronic systems?

10-04-2018, 10:48 AM	#241
Cito Drives: 2017 Camaro SS 1LE Join Date: Jun 2018 Location: Mason City, Iowa Posts: 37	Cool. Thanks. I was planning on running 305's square, but I do not live in a place where anyone is going to go out of their way to mount them on a 10" rim if it is difficult at all. I know it is possible because it has been done, but I watched the guy at Nationals unsuccessfully struggle to mount a 305 on a 10" rim for quite a while and he was giving a better effort than anyone I have locally would.

10-04-2018, 09:40 PM	#244
rotis Drives: 2019 ZL1 1LE Join Date: Sep 2010 Location: Bastrop, TX Posts: 449	Run 19x10 / 19x11 if you want to stay legal to run in Street class.

10-04-2018, 10:46 PM	#245
Roostie all it takes is cash Drives: 2018 LS V6 1LE; 2000 BMW 540i 6MT Join Date: Jan 2017 Location: San Diego Posts: 375	If you don't care about classing, a square setup is good for handling, tire rotation and tire longevity. If you deal carefully with clearance, the 19x11 may work. 19x10.5 square is more common. I think you'll find that CAM-C is a fun place to play. I am running 18x10 on my V6 LS 1LEl with cheap Nexen NFERA SUR4 tires that seem to be working well (not that I have compared them to anything else).

10-09-2018, 02:06 PM	#248
slvrsrpnt Drives: 2017 1SS 1LE Join Date: Nov 2014 Location: Cape Coral, Florida Posts: 228 View My Garage	Wow, that one confused the heck out of me!

10-18-2018, 10:06 AM	#251
Cito Drives: 2017 Camaro SS 1LE Join Date: Jun 2018 Location: Mason City, Iowa Posts: 37	This past Sunday, we ran in the cold with drizzle that was persistent enough to keep it wet. With wet in sub-40's temperatures on stock SS 1LE tires, the car was near impossible to drive. Experimented with multiple settings as well as with all the nannies off and ended up doing best with it set on track with wet performance mode. My driving, especially throttle inputs, leaves a lot of room to do better. So, I'll take credit for sucking, but it was about the most frustrating day of autocrossing I have ever had. I need a better plan for the next time this happens, and am wondering if anybody has found settings that seem to optimize the car for an admittedly bad situation. My belief is that the RE-71's would have performed better in this temperature range (especially with the wet) than the stock tires. It was like driving on PVC pipe. Considering going with a set of continental's, PS4S, or S007A's for the stock wheels and Re-71r's on 19's to have more options in the cold and wet.

10-18-2018, 01:08 PM	#252
rotis Drives: 2019 ZL1 1LE Join Date: Sep 2010 Location: Bastrop, TX Posts: 449	I've autocrossed on RE71's in the low 40's before, they aren't great, but they work significantly better than the stock tires.

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