Race Tracking Your Supra - Information exchange

[razorlab]

Just means that you’re going fast. No way to avoid it except to lift… even then you’ll still fuel starve a few laps later.

Hahha yea totally. Ironically I have yet to experience this at Lime Rock and that is the track I am currently fastest at, being my home track.

It's interesting too because turn 1/2 at Lime Rock is much like this turn at Thompson. Maybe the banking and surface changes at Thompson compounded it.

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[kaj]

Hm... I'm wondering if my problem at my last track day was fuel starvation again, though I don't remember having that particular warning. When I got the car home, it said it was on reserve, so........................ Damn it.

 

[razorlab]

Hm... I'm wondering if my problem at my last track day was fuel starvation again, though I don't remember having that particular warning. When I got the car home, it said it was on reserve, so........................ Damn it.

This was the most apparent one for sure. The others were very subtle and it was like the car just stopped accelerating for a little bit, like I let off the throttle.

 

[decodeddiesel]

This was the most apparent one for sure. The others were very subtle and it was like the car just stopped accelerating for a little bit, like I let off the throttle.

This is all that I've experienced at this point. Nothing like what happened to you on Sunday.

 

[Evolution]

Do you guys not get an error on the dash that says reduced power when it starves?

 

[razorlab]

You need an exhaust lol. The Supra is like a whisper compared to the other cars out there. ?

Hahha, I felt the same about yours when watching it at Lime Rock.

Your supra coming out of turn 2:

Other cars coming out of turn 2:

 

[razorlab]

Do you guys not get an error on the dash that says reduced power when it starves?

Nope. Maybe a 2020 thing?

 

[Evolution]

Nope. Maybe a 2020 thing?

I wouldnt assume so but who knows. Last time I pulled the code, it said something along the lines of bank 1 too lean, max fuel trims reached (stock tune). Definitely went in to 200hp mode right after.

 

[razorlab]

I wouldnt assume so but who knows. Last time I pulled the code, it said something along the lines of bank 1 too lean, max fuel trims reached (stock tune). Definitely went in to 200hp mode right after.

I'll scan and see if there are any shadow codes.

 

[kaj]

Do you guys not get an error on the dash that says reduced power when it starves?

I get a generic warning, yes. I assumed it was for my tire pressure. I didn't notice the fuel being on "reserve" until about a week ago, when I went back to move the car.

 

[kyle9]

Hahha yea totally. Ironically I have yet to experience this at Lime Rock and that is the track I am currently fastest at, being my home track.

It's interesting too because turn 1/2 at Lime Rock is much like this turn at Thompson. Maybe the banking and surface changes at Thompson compounded it.

I got low fuel warnings there (when I wasn’t low fuel)
so it’s for sure possible. The low fuel warnings still pop up with a surge tank. Presumably the sensor in the fuel cell doesn’t see the fuel but there is enough in the surge tank to keep you going until the LPFP can start pumping fuel again.

 

[razorlab]

I got low fuel warnings there (when I wasn’t low fuel)
so it’s for sure possible. The low fuel warnings still pop up with a surge tank. Presumably the sensor in the fuel cell doesn’t see the fuel but there is enough in the surge tank to keep you going until the LPFP can start pumping fuel again.

And how low where you? I always go out with a full tank.

 

[decodeddiesel]

Hahha, I felt the same about yours when watching it at Lime Rock.

Your supra coming out of turn 2:

Other cars coming out of turn 2:

 

[garudathree]

chassis control may be part of it, i don't think i've hit fuel starve at LRP yet at the fuel reserve warning level, but i run effectively full stiff for rebound dampening + 650/750 lb springs, so my chassis is pretty flat through the corner vs being jacked up by the inside wheels. this might allow the fuel level to be more parallel relative to the tank vs a chassis that's 10-20 degrees leaned over. that's with vMin of 105-108 in the downhill so decent g load

 

[RichSC]

Depends. I've had it give me no errors during fuel starve, a low fuel message and a drivetrain malfunction message.

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