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-Track: Shenandoah Circuit - Summit Point WV
-Transmission Type: Manual 7 speed
-Driving Mode/Settings: Sport 1
-Aero Package/Option Package/Setup: Level 1 Aero / Track alignment
-Tires: Michelin Pilot Super Sport
-Conditions/Temp: 81 degrees, dry
-Modifications: aFe CAI with oiled filter, Carbotech XP12 front and XP10 rear, RBF 600 fluid, 50% of coolant drained and replaced with water and water wetter.
-Notes: Video is of my third session, cut short by 10 minutes due to late start with issues in previous group. I ran this track in 3rd and 4th gear during this session. 2nd session I ran 2nd and 3rd and overheated about 11 minutes in. I haven't downloaded Cosworth Toolbox yet but will post pics of data once I do. I am coming from an AWD car with much less power so I kept the nannies on, this was my first track event in the car. Had a lot of fun, but disappointed that running in lower gears got me too hot. I believe 1:44 was my quickest lap of the day.
Cosworth Data for session when I thought I overheated:
After seeing the data on the lap where I thought it overheated, it looks like oil got up to 268 at the most. I am thinking it may have been the computer getting upset with increased airflow due to the aFe intake. 268 isn't that high.
Last edited by samwisemueller; 05-18-2015 at 05:37 PM.
Reason: added cosworth pics
I will be at two tracks this weekend - Friday at PittRace and Saturday at Nelson Ledges - The weather forecast is a high of 54 Friday and a high of 70 Saturday, so I am not sure if I will have any problems with heat, but I will try to get the videos and stats up by Tuesday of next week.
-Track ================== Mid America Motorplex, Council Bluffs Iowa.
-Layout (if more than 1) ======= Full
-Transmission Type========== A8
-Driving Mode/Settings ======== Sport 2, Full Auto
-Aero Package/Option Package/Setup = Stage 1, Non-Z07, Stock coolant and alignment. 15W50 oil.
-Tires ================== Pilot Super Sports
-Conditions/Temp =========== 60 degrees
-Modifications, if any========= Stage 2 style side skirts
-Notes ========= Quite a bit of slow traffic. Had one lap with no traffic ran a 1:43.63 on PDR. 8 lap run max water: 255, max oil 297. Had some dandelions in the grill from a previous off track excursion, surely affecting the cooling. Max Trans Temp 214.
Thanks everyone for contribution on this page so far...all added.
Greg Quillen...you must be getting a good feel for this car, you've tracked quite a bit. I like your results so far...you are going by the book on the cooling system prep. Have you ensure the intercooler circuit is bled properly, as Tadge suggested, as well?
I have to say, we've heard a lot of talk about the 86F benchmark, and thus far, while guys are getting hot, the over temp seems held off until the mid 80's somewhere...but that 86F margin seems at the LIMIT, not more of a benchmark like Tadge may have suggested.
What you have to say so far...what are your feelings about the car overall...I'm curious.
Thanks everyone for contribution on this page so far...all added.
Greg Quillen...you must be getting a good feel for this car, you've tracked quite a bit. I like your results so far...you are going by the book on the cooling system prep. Have you ensure the intercooler circuit is bled properly, as Tadge suggested, as well?
I have to say, we've heard a lot of talk about the 86F benchmark, and thus far, while guys are getting hot, the over temp seems held off until the mid 80's somewhere...but that 86F margin seems at the LIMIT, not more of a benchmark like Tadge may have suggested.
What you have to say so far...what are your feelings about the car overall...I'm curious.
I haven't touch the intercooler system yet. But running water with water wetter and splash of coolant might help cool it. Not sure what Chevy runs in there but I'm sure they just went simple with 50/50 coolant. . I lnow im losing power i can feel it. I did a side by side video where 2 sessions later i was leaving the corner 10mph faster but still just hitting same top speed on straight
Getting a good feel for it Lil by Lil. It Is a great car. Constantly hanging with cars on r compounds or track suspension except where their skill trumps my skill lol..
I lowered the front half an inch. Kept rear at stock height. Rotates slightly more . I'm try it one more track day see how i like it.
People with cooling issues run 80% water in radiator. Then Go from there to removing weather stripping.. wrap exhaust manifolds to cats (my next step)
Im install the carbotech XP12 brake pads tomorrow if i get time. Next track day sunday at thompson again
. Hoping to knock a second. I made a lot of mistakes ...I'll just blame it on being tired lol im full of excuses
-Track: Nelson Ledges (NE Ohio)
-Layout: Full course
-Transmission Type: M7
-Driving Mode/Settings: Track / sport 1
-Aero Package/Option Package/Setup: Level 1 Aero, LZ2, track alignment
-Tires: Michelin Pilot Sport Cup 2
-Conditions/Temp: high 60's - dry
-Overheat warning/failure if any: No issues
-Best Time of the day/Session achieved: 1:21.01 - 4th session 2 PM
-Modifications: Halltech CF CIA, Mobil 1 15W-50, Torque Brake Fluid
-Notes: Track was very rough & bumpy, not able to push with confidence (car too new to put at risk) - another 15 ZO6 with the ZO7 package had at least 10 seconds a lap on me
-Track - Circuit of the Americas
-Layout (if more than 1) - CCW
-Transmission Type - M7-Driving Mode/Settings - Track Mode, Traction control on (by accident)
-Aero Package/Option Package/Setup - Stage 3 aero, Z06 (steel rotors)
-Tires - Michelin Pilot Super Sport
-Conditions/Temp - low to mid 80s
-Overheat warning/failure if any - 2 times had power steering warning and steering became much harder to turn, but not on this run
-Best Time of the day/Session achieved - 2:32.84
-Modifications, if any - Forgeline wheels, Stainless steel brake lines, Cobalt Race pads, Harness bar, 6 point restraint
-Notes (issues experienced, failures, passenger, anything pertinent that you feel affected your time, etc)First day ever at this track, so I'm still learning the line. Plus I'm fat.
I must be doing something wrong - I went to Track then selected the third setting "Sport 1" - Just got back from checking - I was moving to the Sport 1 setting and then using the mode select **** to "enter" my choice - apparently things then went back to just Track mode. I will have to remember to adjust at the track - a great future option would be voice commands for starting the PDR recording, setting the start / finish line and choosing the ride selection mode - lots to be thinking about for us newbies rolling onto the track, in traffic and learning all these functions. Thanks for catching that.
I must be doing something wrong - I went to Track then selected the third setting "Sport 1" - Just got back from checking - I was moving to the Sport 1 setting and then using the mode select **** to "enter" my choice - apparently things then went back to just Track mode. I will have to remember to adjust at the track - a great future option would be voice commands for starting the PDR recording, setting the start / finish line and choosing the ride selection mode - lots to be thinking about for us newbies rolling onto the track, in traffic and learning all these functions. Thanks for catching that.
I had this problem too. I had tried to turn the traction to RACE mode, but it ended up switching the traction back on! I realized what I was doing: once I select the box I want, I intuitively press the button in the center of the **** to try to "select it". Instead it just turns the traction control back on, and you have to start over. You have to remember to highlight the box you want and then don't press anything after that. It feels weird, but that's the way to do it.
-Track: Nelson Ledges (NE Ohio)
-Layout: Full course
-Transmission Type: M7
-Driving Mode/Settings: Track / sport 1
-Aero Package/Option Package/Setup: Level 1 Aero, LZ2, track alignment
-Tires: Michelin Pilot Sport Cup 2
-Conditions/Temp: high 60's - dry
-Overheat warning/failure if any: No issues
-Best Time of the day/Session achieved: 1:21.01 - 4th session 2 PM
-Modifications: Halltech CF CIA, Mobil 1 15W-50, Torque Brake Fluid
-Notes: Track was very rough & bumpy, not able to push with confidence (car too new to put at risk) - another 15 ZO6 with the ZO7 package had at least 10 seconds a lap on me
2 tips to cut into that 10 sec lead the other guy has on you:
1. Get the Rough Track suspension setting that has come out. Your dealer can give you details on that. It's a software upgrade by Chevy.
2. Your tire pressures are WAY too high! I'd aim for no higher than 36 degrees hot pressure. Tires will probably feel "greasy" anywhere over 40 degrees. Invest in a good tire pressure gauge and take pressure out before your next track day. You'll feel a huge difference in confidence and you'll gain LOTS of time per lap.
-Track - Circuit of the Americas
-Layout (if more than 1) - CCW
-Transmission Type - M7-Driving Mode/Settings - Track Mode, Traction control on (by accident)
-Aero Package/Option Package/Setup - Stage 3 aero, Z06 (steel rotors)
-Tires - Michelin Pilot Super Sport
-Conditions/Temp - low to mid 80s
-Overheat warning/failure if any - 2 times had power steering warning and steering became much harder to turn, but not on this run
-Best Time of the day/Session achieved - 2:32.84
-Modifications, if any - [COLOR="red"]Forgeline wheels, Stainless steel brake lines, Cobalt Race pads, Harness bar, 6 point
What Stainless steel brake lines?
I bought ones turns out they only make them for Z51 and base. Was getting tugged on loft at full lock. Shop said not to do Just to be safe.
I must be doing something wrong - I went to Track then selected the third setting "Sport 1" - Just got back from checking - I was moving to the Sport 1 setting and then using the mode select **** to "enter" my choice - apparently things then went back to just Track mode. I will have to remember to adjust at the track - a great future option would be voice commands for starting the PDR recording, setting the start / finish line and choosing the ride selection mode - lots to be thinking about for us newbies rolling onto the track, in traffic and learning all these functions. Thanks for catching that.
Thing i do a lot making the same mistake is i select sport 1 then accidentally press tc button turning ptm modes off.. just turn **** and leave it. I've also accidentally hit button resting my hand there lol
05-18-2015, 12:25 PM
