Oil temps from time attack

phunk · 07-11-2012, 09:11 PM

Quote:

Originally Posted by ChrisSlicks

I've quite literally had complaints that my car was burning from other drivers as I passed them, diff fluid smells pretty nasty when it smokes.

I change it every time I change the engine oil. I'm definitely wanting a diff cooler but drilling and tapping the pumpkin for fittings is a PITA.

If someone made a diff cover with the holes already drilled for the cooling lines that would be awesome! Hint hint, nudge nudge, wink wink.

Huh... Sounds like a simple enough single billet component to consider once the fuel cans are out and about.

clintfocus · 07-11-2012, 09:25 PM

Quote:

Originally Posted by Dwnshift

Just so you know.... Track guys you are Prob pushin 400f and that's only 10-15 minute runs.
We hit 380 f and that was with a pump and cooler.... and have really worked to get them liveable.
Change that fluid often ..... For sure!

yeah thats why i really only do like 3 hot laps right now with no cooler and stock VLSD. im honestly surprised the VLSD lasted this long

my car wont see the track again till after the new diff and diff cooler setup.

Shamu · 07-11-2012, 10:13 PM

Quote:

Originally Posted by Dwnshift

Just so you know.... Track guys you are Prob pushin 400f and that's only 10-15 minute runs.
We hit 380 f and that was with a pump and cooler.... and have really worked to get them liveable.
Change that fluid often ..... For sure!

Yep that's temp we got when I pulled into hot pit after 15 minutes on THill 400 on the dot. Ignorance isn't bliss! I use OS Giken fluid with OS Giken LSD it holds up remarkably well. And runs a little cooler but not much. During track days I would just run couple laps on couple laps off to manage heat. Even for time trails that worked for me. But guys who don't pay attention to rear diff heat are going to cook things nicely especially if they don't change fluid.

When I plan longer track days at hot tracks it will be my next mod but my sprints really don't stress rear diff too badly. Temps under 350 degrees mostly.

I see one main problems being lack of fluid capacity in stock diff. But cooler is mandatory for anyone running these cars seriously.

Dwnshift · 07-11-2012, 07:53 PM

Copy.... Or you could buy one and send it to us... And we could do it for a small fee.

Not only do we run a pump and cooler... But we also have upgraded the fan twice to move more air though our cooling block. Our system sits where the OEM saddle tank was ...on the driers side.... The cooling block is home for trans, oil, and diff cooler.

ChrisSlicks · 07-11-2012, 09:25 PM

Quote:

Originally Posted by Dwnshift

Copy.... Or you could buy one and send it to us... And we could do it for a small fee.

Not only do we run a pump and cooler... But we also have upgraded the fan twice to move more air though our cooling block. Our system sits where the OEM saddle tank was ...on the driers side.... The cooling block is home for trans, oil, and diff cooler.

I'm probably going to lose the muffler can and stick it there, and maybe add a baffle/air guide for more air flow.

phunk · 07-11-2012, 09:13 PM

Does the 370z borrow the 350z diff cover? I have a 350z cover in the garage, but never stared at my 370s cover.

ChrisSlicks · 07-11-2012, 09:15 PM

Quote:

Originally Posted by phunk

Does the 370z borrow the 350z diff cover? I have a 350z cover in the garage, but never stared at my 370s cover.

Covers are different I believe, just slightly.

Edit: Hmm, they are listed as separate part numbers but I'm not sure what the difference actually is.

Dustin@Z1 · 07-12-2012, 04:15 PM

Quote:

Originally Posted by ChrisSlicks

Covers are different I believe, just slightly.

Edit: Hmm, they are listed as separate part numbers but I'm not sure what the difference actually is.

That is probably one of the old Nissan tricks that they pull with the part numbers from time to time. The covers are identical from what I recall. Just an example, Nissan Motorsports lists the same part number for the Finned NISMO Diff Cover (which is really not a NISMO part at all, but a Middle Eastern/Austrailian spec part) for all VQ platforms. They just re-number the OE boxes....

ChrisSlicks · 07-12-2012, 04:21 PM

Quote:

Originally Posted by Dustin@Z1

LOL....I have seen a few cars where the diff temps get hot enough that the magnet on the drain plug literally mushrooms out. You end up having to pull the diff to get the cover off to drain the fluid.

My magnet literally melted off, I guess I got lucky that it didn't get stuck!

Quote:

Originally Posted by Dustin@Z1

That is probably one of the old Nissan tricks that they pull with the part numbers from time to time. The covers are identical from what I recall. Just an example, Nissan Motorsports lists the same part number for the Finned NISMO Diff Cover (which is really not a NISMO part at all, but a Middle Eastern/Austrailian spec part) for all VQ platforms. They just re-number the OE boxes....

Good to know!

wstar · 07-12-2012, 01:59 AM

I'm surprised the 12/10 combo didn't work out for you. I'm running 10/8 with Stillen's brake ducts on the front and it's the best setup I've had yet. This is street tires in HPDE-like stuff though.

clintfocus · 07-12-2012, 03:03 PM

id look into a upgraded radiator also if your going to be on track during the summer. our are very thin. I was on track last weekend in 105 degree weather. My oil was soilid with my 34 row cooler, but water started to get hot

07-11-2012, 07:53 PM	#4 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 15	Copy.... Or you could buy one and send it to us... And we could do it for a small fee. Not only do we run a pump and cooler... But we also have upgraded the fan twice to move more air though our cooling block. Our system sits where the OEM saddle tank was ...on the driers side.... The cooling block is home for trans, oil, and diff cooler. Last edited by Dwnshift; 07-11-2012 at 07:58 PM.

07-11-2012, 09:13 PM	#6 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	Does the 370z borrow the 350z diff cover? I have a 350z cover in the garage, but never stared at my 370s cover. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

07-12-2012, 01:59 AM	#10 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	I'm surprised the 12/10 combo didn't work out for you. I'm running 10/8 with Stillen's brake ducts on the front and it's the best setup I've had yet. This is street tires in HPDE-like stuff though. __________________ 7AT Track Car! Journal thread / Car setup details

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07-12-2012, 03:03 PM	#11 (permalink)
clintfocus Track Member Join Date: Jan 2011 Location: los angeles Age: 39 Posts: 933 Drives: 370z, EK Civic, F150 Rep Power: 16	id look into a upgraded radiator also if your going to be on track during the summer. our are very thin. I was on track last weekend in 105 degree weather. My oil was soilid with my 34 row cooler, but water started to get hot