FL5 Overheated on Track

[PointByPatrol]

Third run. 67 ambient. 221 degrees but only briefly.

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[PointByPatrol]

I'm .5 seconds off from my personal best in the FK8.

 

[Jester04]

That oil temp can't be trusted. Just got done with my second run. Hit 214 F ambient 65

Yeah until you get a dedicated oil temp sensor I would not give a second thought to the oil temps on log R.

 

[PointByPatrol]

Yeah until you get a dedicated oil temp sensor I would not give a second thought to the oil temps on log R.

Yep. Ignoring entirely!

 

[Clark_Kent]

That oil temp can't be trusted. Just got done with my second run. Hit 214 F ambient 65

Super helpful and thank you for sharing. Ideally, you want to see ambient temps in the 85-95 F range to get a better sense of the efficacy of the radiator and intercooler combination. Unfortunately, that time has passed and we'll look forward to next season.

I'm .5 seconds off from my personal best in the FK8.

Was your FK8 modified?

 

[PointByPatrol]

Super helpful and thank you for sharing. Ideally, you want to see ambient temps in the 85-95 F range to get a better sense of the efficacy of the radiator and intercooler combination. Unfortunately, that time has passed and we'll look forward to next season.


Was your FK8 modified?

It was. Phearable Stage 2 tune, RV6 suspension gadgetry, intake, intercooler and exhaust.

 

[Clark_Kent]

It was. Phearable Stage 2 tune, RV6 suspension gadgetry, intake, intercooler and exhaust.

Wow, that's incredible. With some more seat time, you'll best it in no time!

 

[PointByPatrol]

Wow, that's incredible. With some more seat time, you'll best it in no time!

The FL5 exceeds in the corners. It's been a blast to drive today. My optimal laps on my Garmin are showing low 2:10's are possible. I'd like to beat my personal best this weekend if I can, but that will ultimately be decided by traffic. I've had a few vague shifts. Thinking a RMM is a necessity.

 

[yeaitsahonda]

The FL5 exceeds in the corners. It's been a blast to drive today. My optimal laps on my Garmin are showing low 2:10's are possible. I'd like to beat my personal best this weekend if I can, but that will ultimately be decided by traffic. I've had a few vague shifts. Thinking a RMM is a necessity.

That's awesome. I was really hoping to get down to VIR before the end of the season but it's not gonna happen. The upper esses and South Bend in a car with this much power has to be epic.

 

[Jester04]

The FL5 exceeds in the corners. It's been a blast to drive today. My optimal laps on my Garmin are showing low 2:10's are possible. I'd like to beat my personal best this weekend if I can, but that will ultimately be decided by traffic. I've had a few vague shifts. Thinking a RMM is a necessity.

I can’t recommend the rmm enough! Its made the car feel more connected and 0 wheel hop.

 

[fishyducky]

Gents and ladies! I'm happy to report that the car did not overheat on track at VIR! I removed the baffle and ran the heat. Water temps didn't get over 204 fahrenheit!

Awesome man! Is baffle referring to the gutter thing under the hood vent?

 

[PointByPatrol]

I can’t recommend the rmm enough! Its made the car feel more connected and 0 wheel hop.

Probably also reduces the feeling that your transmission is running away from you!

 

[PointByPatrol]

Awesome man! Is baffle referring to the gutter thing under the hood vent?

Yes!

 

[tezzasaurusrex]

ah got you! Have not seen the underside of the car yet since my last oil change was done when intercooler was installed and I was not there.

Turns out I am mistaken. The K20C1 does indeed have an engine oil/coolant heat exchanger but unlike K series of old which had it as a sandwich plate at the oil filter housing, rather it is located just under the water pump! Which is only inches away from the scalding hot turbo along with the the main water pipe that runs behind the turbo in front of the engine block. God knows the reasoning behind all this...

See red circled in the attached photo:

Part #14 (highlighted in yellow) in the below exploded diagram:

 

[PointByPatrol]

Turns out I am mistaken. The K20C1 does indeed have an engine oil/coolant heat exchanger but unlike K series of old which had it as a sandwich plate at the oil filter housing, it is located just under the water pump area! It is located only inches away from the scalding hot turbo along with the the main water pipe that runs behind the turbo in front of the engine block. God knows the reasoning behind all this...
See red circled in the attached photo:

Running the heat while driving makes a big difference. I experimented with not running it and saw ECT's climb to 224, I then turned the heat on and about 10 seconds later the temps had fallen to 212. The turbo is more efficient than an FK8, but is immediately dumped into a restrictive catalyst. A high flow cat will likely do wonders in concert with a full exhaust.

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