First Day at Track with Z

TrackRat · 09-15-2010, 12:36 AM

So I kind of knew what I had instore as I held off on installing an oil cooler until I saw exactly what the car did... well it sucked. Within three laps at Infineon the oil temps were hitting 280+ and the car pulled power at 6k RPM. Even when I short shifted to avoid 6k it felt as though it was down on power.

What I was surprised to encounter was when I pulled into the pits to swap passengers there was a noticable issue with the clutch easing into first and if I had to put in in reverse it was far worse. Damn thing would just buck and fight. Gave up and just circled around instead of reversing. All of that went away once the car cooled down.

I had bled the brakes with Motul and swapped pads and the brakes worked fine. Neglected to bleed the clutch as I've never had to do that with any of my other track cars... is this the issue?

cossie1600 · 09-15-2010, 10:06 AM

that would be a start

G Fo12ce · 09-15-2010, 11:15 AM

what brake pads did you use?

TrackRat · 09-15-2010, 12:00 PM

XP10s with Motul. Worked very well.

Sharif@Forged · 09-15-2010, 12:31 PM

The OEM internal slave has been problematic for many people. I would start by switching to Motul fluid for your clutch, and give it a thorough bleeding.

Glad you liked those pads..they are pretty awesome on stock brakes.

TrackRat · 09-19-2010, 07:50 PM

Ordered the race cooler from Josh @ Stillen, arrived 2-days later with free shipping, goes in on Wednesday along with a full flush of the clutch with Motul (how much fluid will likely be needed on the clutch btw?). We'll see how she performs after all that.

ChrisSlicks · 09-19-2010, 08:08 PM

It doesn't take much fluid to flush the clutch as it is a short line, 1/2 a pint probably.

TrackRat · 09-20-2010, 12:23 PM

Thanks... just wanted to make sure I have enough on hand. Still have an unopened bottle of Motul so it sounds like I should be good.

09-15-2010, 12:36 AM	#1 (permalink)
TrackRat Base Member Join Date: Jul 2010 Location: Danville, CA Posts: 86 Drives: '10 370Z MB M6 Rep Power: 234	First Day at Track with Z So I kind of knew what I had instore as I held off on installing an oil cooler until I saw exactly what the car did... well it sucked. Within three laps at Infineon the oil temps were hitting 280+ and the car pulled power at 6k RPM. Even when I short shifted to avoid 6k it felt as though it was down on power. What I was surprised to encounter was when I pulled into the pits to swap passengers there was a noticable issue with the clutch easing into first and if I had to put in in reverse it was far worse. Damn thing would just buck and fight. Gave up and just circled around instead of reversing. All of that went away once the car cooled down. I had bled the brakes with Motul and swapped pads and the brakes worked fine. Neglected to bleed the clutch as I've never had to do that with any of my other track cars... is this the issue? __________________ Rob Montgomery '10 370Z Sport 6MT - Pretty much stock... '88 Porsche 911 Turbo - You name it... its got it www.bloodsweatandbrokengears.com

09-15-2010, 11:15 AM	#3 (permalink)
G Fo12ce Premium Member Join Date: Nov 2009 Location: Socal Posts: 996 Drives: Sold! Rep Power: 52	what brake pads did you use? __________________ Nismo Suspension: New Owners Check Here!

09-15-2010, 12:00 PM	#4 (permalink)
TrackRat Base Member Join Date: Jul 2010 Location: Danville, CA Posts: 86 Drives: '10 370Z MB M6 Rep Power: 234	XP10s with Motul. Worked very well. __________________ Rob Montgomery '10 370Z Sport 6MT - Pretty much stock... '88 Porsche 911 Turbo - You name it... its got it www.bloodsweatandbrokengears.com

09-15-2010, 12:31 PM	#5 (permalink)
Sharif@Forged The370Z.com Sponsor Join Date: Dec 2008 Location: Marietta, GA Posts: 840 Drives: 2009 GT-R, 2010 370Z Rep Power: 18	The OEM internal slave has been problematic for many people. I would start by switching to Motul fluid for your clutch, and give it a thorough bleeding. Glad you liked those pads..they are pretty awesome on stock brakes. __________________ Sharif@Forgedperformance.com General Manager/Certified Tuner/NASA-PCA-BMWCAA Instructor JRZ RS1's Available NOW...PM me Cobb ProTuner, Uprev ECU Flash, FCON Vpro, Haltech, Motec Certified

09-19-2010, 07:50 PM	#6 (permalink)
TrackRat Base Member Join Date: Jul 2010 Location: Danville, CA Posts: 86 Drives: '10 370Z MB M6 Rep Power: 234	Ordered the race cooler from Josh @ Stillen, arrived 2-days later with free shipping, goes in on Wednesday along with a full flush of the clutch with Motul (how much fluid will likely be needed on the clutch btw?). We'll see how she performs after all that. __________________ Rob Montgomery '10 370Z Sport 6MT - Pretty much stock... '88 Porsche 911 Turbo - You name it... its got it www.bloodsweatandbrokengears.com

09-15-2010, 10:06 AM	#2 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	that would be a start

09-19-2010, 08:08 PM	#7 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	It doesn't take much fluid to flush the clutch as it is a short line, 1/2 a pint probably. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

09-20-2010, 12:23 PM	#8 (permalink)
TrackRat Base Member Join Date: Jul 2010 Location: Danville, CA Posts: 86 Drives: '10 370Z MB M6 Rep Power: 234	Thanks... just wanted to make sure I have enough on hand. Still have an unopened bottle of Motul so it sounds like I should be good. __________________ Rob Montgomery '10 370Z Sport 6MT - Pretty much stock... '88 Porsche 911 Turbo - You name it... its got it www.bloodsweatandbrokengears.com

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