Out of curiosity does anyone have the oil specification table from the owner's manual handy? I'm curious to know what it says for severe duty.
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Yes, thinner oil would in theory lower temps a little (less resistance to flow) bit but I have a hard time believing it would be significant.
Biggest thing you need to worry about is maintaining sufficient oil pressure with high oil temps. With a good cooler setup and reasonable temps... a stout 'street oil' is probably just fine.... 260 ish like you said. When I was tracking I would start paying attention when it hit 260 and 280 is when I would start backing off or do a cool down lap etc.
HTHS is what is most important in terms of oil pressure....not necessarily the kinematic viscosity at 100C or whatever. So pay attention to that instead of a 30wt or 40wt... like the red line man says.
However a good 40 wt may still be worthwhile I think if you're gonna be in that 260 range. Another option is to simply run a thicker oil for track events and swap it out more often. Here in the USA mobil 1 15w50 can be had for around 25 bucks / 5 quart and has a HTHS of ~ 4.5 IIRC.
Being a little on the heavier side/high HTHS for track is never a bad thing.
lol yea thanks!I'm glad to see my plan worked on selling you a failsafe kit that broke. Get rekt nerd.
Glad to see it's being put to good use. I'm going to be buying another soon to get set up.
What vent pod did you use?
Also like mentioned above, I was simply going to wire it in w/ my EBCS to dump the BOV when triggered. Interesting way you have it.

i have the guys name but he didnt have a title in his signature so not sure who he is at red line. He seemed pretty knowledgeable though and i definitely questioned him on switching to a 5w30 oilI'm curious as to who wrote that for redline. It's the opposite of what other manufacturers say and contrary to real world experience of many people
i tried to find this in the manual, all i got was 5w-30. nothing about severe dutyOut of curiosity does anyone have the oil specification table from the owner's manual handy? I'm curious to know what it says for severe duty.











UPDATE!
installed my new oil drain line from mazdaspeed wiretuck, and what a pain in the ass this install was. damn.
my old homemade oil line was cooked and definitely had to go though,
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new line,
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new line installed(terrible picture)
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FINALLY made it out to the track, and i have some real results here.
first off, suspension feels amazing. its incredible the difference. the car feels more planted, gripped up, and less like a boat leaning all over. Body roll has been decreased significantly. no crazy dive under hard braking, no crazy lift at corner exit. still picking up some wheel spin at exit but that may be down to my throttle modulation. still need to iron corn exits out. im no longer bottoming out under trail braking in a few spots like i was before, so thats a huge win!!
Brakes held up amazingly well also. no signs of fade, no lack of stopping power for confidence. i was braking way too early, and slowing down too quickly. ill have to re-calibrate myself to the new stopping power.
now the not so great news,
OIL TEMPS. it was a warm day, 30c(86f) and the sun was just cooking.
2 hard laps, 270f+ oil temps. like shit. real quick, do a cool down lap, and temps drop but even one lap after and thats it we're back to 270f+.
oil pressure would seriously eat it at those temps, im talking 15psi on idle, and 45-50psi in the upper rpms.
now ive done some reading around on the topic and it seems like pressure is either there, or it isnt there. the value itself means very little. ive read 10psi for 1k rpm, ive read modern engines with modern oils have protection all the way down to as low as 5psi per 1k rpm. i do run the redline 5w40 which has a crazy high HTHS rating, which is real important in these high heat situations.
after cooling down the car and parking it for about 20-30 minutes, oil temps dropped to 190, and pressure was back up to a more comfortable value. fought with overheating oil all day though. like non stop.
this now makes me think, last year, before i installed the gauge, how HOT was i running my oil to? how low was my pressure getting to? i would do full 20-25 minute sessions and just send it non stop. so...thats scary lol.
at this point im looking into a bigger core, significantly bigger. something like these,
https://www.pegasusautoracing.com/productdetails.asp?RecID=8949
https://www.pegasusautoracing.com/productdetails.asp?RecID=8962
im also considering switching to a 5w50 for track days. not sure on that yet though. its clear my little 10 row oil cooler just isnt enough. ive said it before in this thread, but the heat a car sees on the street, is nowhere NEAR the heat a car sees on track. its not even a little bit close. at all.
this said, when i install one of those big cores, ill probably go back to a thermostatic sandwich plate, and have to install my sensors a different way.
suggestions on where i could mount a massive 25 row core? im thinking infront of my fmic? maybe?
another issue i encountered, i was losing fuel pressure past 4k rpm, hpfp dropping from 1700-1800 down to 900. my afr's would go directly to 14+. my failsafe was going off saving me there, thankfully. but i need to address this now. ive been told it could be the autotech internals sticking together, or fusing together. ive been told to pull them apart, and inspect. they may need a cleaning, or hopefully not, a replacing.
ideas?
some pictures from the day, i didnt have my gopro mount so no videos unfortunately, hunted down this mustang GT, as well as a nice C7. ill take that in my overheating hot hatch, not bad.
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look at that, massive suspension compression. love it
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well thats all for now.
Nice to hear the new bilsteins are working great.
Check your Autotechs, if they are fusing you will see severe scoring on them. If there is no scoring, check your oil for a heavy fuel smell. If your oil has a really strong smell, it might be the screw seals.
LOL. no problem, all the info will be here!!I'm glad you're dealing with all of these problems so then I know how to avoid them when I eventually track my Pu LOLOL.
The oil cooling definitely seems like the challenging bit. I still need to get a gauge set up for my car.LOL. no problem, all the info will be here!!
i will definitely be going with a larger core, probably the 25 row from setrab, and itll probably just get mounted directly infront of my fmic. is what it is. oil temps were WAY out of hand on track. on the street, its a non issue thoughThe oil cooling definitely seems like the challenging bit. I still need to get a gauge set up for my car.