Tracking car hard in hot climate

[wahsm]

Truth, if I have learned one thing from this forum it is do not buy any radiator other than OE.

Koyo radiator has been fantastic for me, well respected for JDM cars. Has more capacity and all aluminum which is a bonus. Fitment is perfect as well.

[zzyzx85]

Koyo radiator has been fantastic for me, well respected for JDM cars. Has more capacity and all aluminum which is a bonus. Fitment is perfect as well.

I've got one waiting for me to install. I also have a Koyo in my STI and it's been great at the track, even during the summer.

[Estoril]

Koyo radiator has been fantastic for me, well respected for JDM cars. Has more capacity and all aluminum which is a bonus. Fitment is perfect as well.

Are you tracking your car in 100 degree temperatures?

[Driver407]

So i had my first event with the E46 out at thunderhill west today. Was about 80* and the car did great! Oil never even made it to the 3 dot and coolant was also a non worry. Guess i was just overthinking it
As everyone stated OEM works and mine hasnt even been refreshed yet.

Usually run a 1:25 in my F80 (ap racing bbk, tc klines,CS tune,apex ec7, nitto nt01). Ended up doing a 1:31 on a pretty much stock E46 with continental extreme sports (came with car). Not to mention this is my first manual car so ive only had 2 months of experience.

[zzyzx85]

Would it be a good idea to throw in a few gallons of 100+ octane (unleaded) in the interest of ping prevention? Any downsides, besides being a waste of money?

[EthanolTurbo]

Would it be a good idea to throw in a few gallons of 100+ octane (unleaded) in the interest of ping prevention? Any downsides, besides being a waste of money?

Would probably be much easier/more convenient to throw in 2-3 gallons of E85. It will give about the same amount of knock protection/octane boost.

[Obioban]

Would it be a good idea to throw in a few gallons of 100+ octane (unleaded) in the interest of ping prevention? Any downsides, besides being a waste of money?

So long as your car is correctly tuned for pump, that's just lighting money on fire.

[zzyzx85]

So long as your car is correctly tuned for pump, that's just lighting money on fire.

the sound of that money burning is pretty great though 🤣

[wahsm]

Are you tracking your car in 100 degree temperatures?

I have yes, handled it well. The stock one was old so could be similar in performance, but additional capacity and all aluminum housing was a bonus for me.

[S14]

Would it be a good idea to throw in a few gallons of 100+ octane (unleaded) in the interest of ping prevention? Any downsides, besides being a waste of money?

When I was dealing with overheating in Colorado, putting a 1/2 tank of 100 octane extended the time it took for the car to overheat. This made me consider the tune's timing might be too aggressive.

[eacmen]

Right now I have my gauges go into warning territory at 200F, engine outlet temp, and go red at 210F.

What on track coolant temps do you guys stop pushing at? Last event I saw 210F and did a cooldown lap.