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Search: Posts Made By: zeroomega
Forum: BRZ Second-Gen (2022+) -- General Topics 10-31-2024, 10:16 PM
Replies: 22
Views: 4,554
Posted By zeroomega
Sorry, the people who own the paper copy of the...

Sorry, the people who own the paper copy of the technical paper don't allow us to share it in public.

The title is
"エンジン内オイル挙動予測モデル構築と 2023年NBR エンジン検討への適用"
"Calculation Model Development for...
Forum: BRZ Second-Gen (2022+) -- General Topics 09-12-2024, 04:27 PM
Replies: 22
Views: 4,554
Posted By zeroomega
I would say me included, there will be a portion...

I would say me included, there will be a portion of potential buyers will be concerned if the baffle plate has moving parts like rubber flap (which could degrade from old age). The lower pan is not...
Forum: BRZ Second-Gen (2022+) -- General Topics 09-12-2024, 03:51 PM
Replies: 22
Views: 4,554
Posted By zeroomega
I am not sure. STI engineers didn't mention how...

I am not sure. STI engineers didn't mention how they attach the vertical baffle in place. From the graph, it blocks the oil from flowing around the oil pickup tube section in the timing chain cover...
Forum: BRZ Second-Gen (2022+) -- General Topics 09-10-2024, 07:04 PM
Replies: 22
Views: 4,554
Posted By zeroomega
I am not sure if vertical trap door is a good...

I am not sure if vertical trap door is a good design choice. The reason why the GR86 starve oil on lateral g is not primarily due to oil leaving the pan under lateral g, but the oil cannot return...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-23-2024, 02:19 PM
Replies: 4
Views: 5,560
Posted By zeroomega
I built my own. See the finished board...

I built my own. See the finished board https://github.com/HPDE-Tools/CANMIM/issues/1#issuecomment-1868334660 . This is also what is currently used by 900BRZ. My board can be paired with an off the...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 06-26-2023, 07:54 PM
Replies: 2
Views: 3,099
Posted By zeroomega
I already posted similar findings before in...

I already posted similar findings before in forum: https://www.ft86club.com/forums/showthread.php?t=151509 roughly 8 months ago.

And in 900BRZ's video, that White GR86 (with RTV cleaned) is my...
Forum: BRZ Second-Gen (2022+) -- General Topics 03-24-2023, 04:01 PM
Replies: 57
Views: 8,982
Posted By zeroomega
Gen1 diff rarely fail, even among track folks. It...

Gen1 diff rarely fail, even among track folks. It is a torsen unit, which is robust and mostly worry free. People who upgrade the diff are mostly for changing into clutch type LSD for tunability and...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 02-08-2023, 01:14 AM
Replies: 121
Views: 30,554
Posted By zeroomega
Upper oil pan has some metal shielding below the...

Upper oil pan has some metal shielding below the crank shaft, if that can be called as baffle. The same structure is already present in gen1 FA20.

Lower oil pan (the one people drop for RTV...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-30-2023, 10:30 PM
Replies: 121
Views: 30,554
Posted By zeroomega
Some updates after last weekend at Buttonwillow. ...

Some updates after last weekend at Buttonwillow.

TL;DR, I don't think Syms Racing oil pan baffle is quite useful. But it doesn't seem to make the matter worse.

I did a side by side comparison...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-23-2023, 04:23 PM
Replies: 121
Views: 30,554
Posted By zeroomega
Oil cooler has nothing to do with lateral g oil...

Oil cooler has nothing to do with lateral g oil pressure drops. KillerBMotorsports is just concerned the pressure drops too much when oil temperature rises while I felt it is just normal oil...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-23-2023, 03:53 PM
Replies: 121
Views: 30,554
Posted By zeroomega
Well, my sandwich plate does have ports to put...

Well, my sandwich plate does have ports to put 1/8 NPT sensor at inlet and outlet. But GR86 hood is too low so the sensor will hit the hood when closed. I tried 90 degree adapter before, but without...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-20-2023, 01:55 PM
Replies: 121
Views: 30,554
Posted By zeroomega
If you look at the oil from the same brand, 0w30...

If you look at the oil from the same brand, 0w30 and 5w30 doesn't have the same HTHS spec or 100C (212F) viscosity, with 5w30 usually have higher HTHS rating. In NorCal tracks, usually there is no...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-18-2023, 03:23 PM
Replies: 121
Views: 30,554
Posted By zeroomega
I sometimes overfill the oil by 0.3qt during oil...

I sometimes overfill the oil by 0.3qt during oil change, because the dipstick is just not very accurate. I didn't see any noticeable difference in logged oil pressure. I did't try 0.5qt overfill...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-17-2023, 10:19 PM
Replies: 121
Views: 30,554
Posted By zeroomega
I did continue to log the oil pressure and see...

I did continue to log the oil pressure and see similar oil drops patterns at other tracks and my friend (TrackAndBuild (https://www.youtube.com/@TrackandBuild) at Youtube) also did similar oil...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 10-18-2022, 10:28 PM
Replies: 121
Views: 30,554
Posted By zeroomega
Well the datalogger itself is AIM Solo DL2, which...

Well the datalogger itself is AIM Solo DL2, which is the one of the go to choice for most of track rats. But how I connect it to GR86 is completely customized and complicated.

I got the AIM Solo...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 10-17-2022, 04:01 PM
Replies: 121
Views: 30,554
Posted By zeroomega
Did U.S. GR Cup mentioned they are using oil pan...

Did U.S. GR Cup mentioned they are using oil pan baffles? I only know Japan GR86/BRZ cup car has a proved list of baffles and Greddy one is one of them. However, I didn't see any test data proving...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 10-17-2022, 03:19 AM
Replies: 121
Views: 30,554
Posted By zeroomega
Oil pressure drops on race track in S corners

I did some data logging on oil pressure at Thunderhill West race track with a GR86 today and had some interesting(sad) discovery: the pressure seems to be quite steady at long sweep corners but drops...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 02-07-2022, 03:38 AM
Replies: 238
Views: 33,590
Posted By zeroomega
I think both AT and MT has the same engine tune...

I think both AT and MT has the same engine tune (at least for 1st gen pre 2017). So if you just drag race them, which one is faster really depends on the gearing ratio and shifting speed. So there...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 02-02-2022, 05:34 PM
Replies: 93
Views: 24,793
Posted By zeroomega
My car's coolant was around 210F and oil at 265F...

My car's coolant was around 210F and oil at 265F Sonoma with a pace 15sec slower than stock class lap record in 2019 fall before I installed the Jackson Racing dual radiator/cooler. The cooler came...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 02-01-2022, 01:37 PM
Replies: 93
Views: 24,793
Posted By zeroomega
There aren't many data came out this far but some...

There aren't many data came out this far but some GR86 folks are seeing 250F oil temperature after just a few laps on the track, which is around the edge of the not optimal temperature. We have yet...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-29-2022, 02:04 AM
Replies: 69
Views: 20,775
Posted By zeroomega
I think I need a bit clarification on this as...

I think I need a bit clarification on this as well. I would like to know except for the mounting bracket, what other parts are changed and incompatible in the gen2 kits. I have the endurace kit for...
Forum: GR86 General Topics (2nd Gen 2022+ Toyota 86) 01-05-2022, 04:05 AM
Replies: 69
Views: 20,775
Posted By zeroomega
Looks like new GR86 17inch OEM wheels clears old...

Looks like new GR86 17inch OEM wheels clears old gen's AP Racing Endurance Kit without issues.

Pictures are test fitting GR86 wheels on my 2013 Scion FR-S.
Forum: BRZ Second-Gen (2022+) -- General Topics 08-31-2021, 08:00 PM
Replies: 146
Views: 35,180
Posted By zeroomega
Lapping around Nurburgring with 86 by pushing to...

Lapping around Nurburgring with 86 by pushing to the limit is around 8-9mins, which translate to 4-5 laps at Laguna Seca regarding the time duration. If APEX taxi let the car cool down after each lap...
Forum: BRZ Second-Gen (2022+) -- General Topics 08-31-2021, 07:51 PM
Replies: 146
Views: 35,180
Posted By zeroomega
Different people have different needs. I think...

Different people have different needs. I think the decision on whether or not to run oil cooler really depends on how people use the car. Mine is 95% track vs 5% street. I log around 2 track days per...
Forum: BRZ Second-Gen (2022+) -- General Topics 08-31-2021, 02:58 PM
Replies: 146
Views: 35,180
Posted By zeroomega
I just want to point out Toyota factory backed 86...

I just want to point out Toyota factory backed 86 Cup racecar suggests to use 10w60 oil with oil cooler. I bet they know what they are doing. I won't 10w60 since I still drive my car on the street...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 12-29-2020, 12:38 AM
Replies: 52
Views: 17,487
Posted By zeroomega
That is probably a question for annex folks. The...

That is probably a question for annex folks. The assist springs on CSP would probably allow you to have more compression stroke before hitting the bumpstop compared to the ones without the assist...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 12-29-2020, 12:12 AM
Replies: 52
Views: 17,487
Posted By zeroomega
My Club Spec Pro version is slightly different...

My Club Spec Pro version is slightly different than yours. I am interested if we can have a chance to do a side by side comparison when the pandemic is over.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 12-13-2020, 03:00 PM
Replies: 52
Views: 17,487
Posted By zeroomega
I think 9k/10k is a bit too high for street. You...

I think 9k/10k is a bit too high for street. You would definitely like to avoid this rate if you mainly drive the car on the street. If I set the damping to soft side (over 18 clicks out of 24...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 12-10-2020, 02:33 PM
Replies: 52
Views: 17,487
Posted By zeroomega
I have Annex CSP (9K/10K) on my car. However I...

I have Annex CSP (9K/10K) on my car. However I never use other coilovers before so I don't have any data for comparison. My car feel easier to control at limit compared to when it was stock and my...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 12-08-2020, 09:11 PM
Replies: 15
Views: 4,268
Posted By zeroomega
I have AP Racing endurance kit on my FR-S with...

I have AP Racing endurance kit on my FR-S with Carbotech XP8 pads. They sounds like a screaming banshee no matter on street or track and no matter how hard I tried to bed them in. But the combo works...
Showing results 1 to 30 of 31

 
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