Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB
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Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Tracking / Autocross / HPDE / Drifting (https://www.ft86club.com/forums/forumdisplay.php?f=39)
-   -   Foot to floor, but data sez big "accel pedal %" dropoff (https://www.ft86club.com/forums/showthread.php?t=146565)

gcranston 09-18-2021 02:41 PM
Quote:
Originally Posted by ZDan (Post 3466668)
:thumbsup:

Do you have a sawzall?
And an angle grinder, jigsaw, files, deburring tool, dremel...

edit: and a dark grey metallic rattle can that's close enough for under-hood stuff. Also, I have aerocatch to install, so if there's hood cutting to be done I'd rather do it all in one day.

Shoebox 10-12-2021 04:15 AM
Quote:
Originally Posted by ZDan (Post 3466806)
Oil analysis would tell me what's going on in my engine, which would be good info. I might do it but honestly I'm not that worried.

Adding an oil cooler when it isn't necessary is not "cheap insurance". You're adding some risks, but you're not ensuring you won't have issues. Engines (particularly '13s) have had oiling-related failures while running an oil cooler. The oiling-related problems FA20 engines have had seem to me to be more related to oil delivery rather than oil temperature.
Most common cause of oil delivery issues is dropping oil pressure at high rpm because hot oil has less viscosity. The oil pump design does this no favors. But hey, you know better than the rest of us🤷🏽*♂️

ZDan 10-12-2021 08:59 AM
Quote:
Originally Posted by Shoebox (Post 3472605)
Most common cause of oil delivery issues is dropping oil pressure at high rpm because hot oil has less viscosity. The oil pump design does this no favors. But hey, you know better than the rest of us🤷🏽*♂️
:rolleyes:
For the hundredth time, you choose oil viscosity based on operating temperature, and 30-weight at 275F has the same viscosity as 20-weight at 250F. I wouldn't track this car with no oil cooler, running 275F oil temp, with 20-weight oil.


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