i20n Race Car / Some Heat Managment Problems

[orcunince]

check the firtech r60.

I will mate, but i don't think that it is available in turkey, i will check.

I’m pretty certain that the Corsa was never sold with four piston calipers, nor any Mini sold with six piston ones. If your competitors are running these setups then they are aftermarket brakes.

When you say the discs have to be non-vented, do you mean you cant run the original front vented discs?

As far as pads go you are in uncharted territory as you are the first that I know of to run this vehicle in national competition. I found the attached table from EBC which you may or may not have seen before.

The rule about brakes is as follows: If the car did not originally come with ventilated discs from the factory (either at production or afterwards), you are not allowed to use them. Likewise, if you want to change the calipers, you must switch to a brake system produced by Hyundai. This means that if the i30N has a 4-piston caliper, we could use it (provided it stays mounted on the original caliper brackets).


Additionally, there is no restriction on adding cooling to the braking system. I’m already channeling air from around the fog lights onto the disc, but even so, with a single-piston brake always pressing on the same spot, at some point it’s still not enough.

 

[orcunince]

I think this is your best bet for little money. The stock grill is quite obstructive and if you could do away with it altogether it might be beneficial (wire mesh grill?). Even the "facelift" grill seems to have plenty of blocked off areas. I have not had the front bumper off my car but maybe a shroud between grill and radiator to help channel/force air through the radiator rather than vent around it.
Judging by your latest videos you are absolutely killing it in your class anyway

I have at least 2,500 laps at Istanbul Park with a car, about 100 on a bicycle, and maybe 40 walking. I also worked there as an instructor in 2013, so this track is essentially my home race.

Apart from that, the i20N’s apex speeds are better than the Corsa’s, and at high speeds the Corsa loses a lot due to aero while we can keep accelerating. If we overcome the heating and break issues, we’ll dominate the Turkish Circuit Championship

This video is perfect to watch Corsa vs i20n

 

[Jerome92]

The rule about brakes is as follows: If the car did not originally come with ventilated discs from the factory (either at production or afterwards), you are not allowed to use them. Likewise, if you want to change the calipers, you must switch to a brake system produced by Hyundai. This means that if the i30N has a 4-piston caliper, we could use it (provided it stays mounted on the original caliper brackets).

Well, Hyundai does make a 4-piston system: https://nperformanceshop.com/product/n-퍼포먼스-브레이크-시스템/33/category/25/display/1/
I've seen an i30N fitting this very kit or a similar one from Hyundai Korea. Fitting on i20N might be tricky but not impossible.
Anyway if you can run the i30N system that would already be an upgrade I think. There is a guy on Instagram who has fitted the i30N 345mm discs and calipers, he said compatibility is not a problem, you just need a 3mm spacer between disc and hub to center the discs with the caliper.

Additionally, there is no restriction on adding cooling to the braking system. I’m already channeling air from around the fog lights onto the disc, but even so, with a single-piston brake always pressing on the same spot, at some point it’s still not enough.

Are you running the kit from HRNSHN? I have it and I don't find it particularly effective, now that SPEED as release their own, it could be good to have them both?

 

[YNWaN]

I think the problem with all these brake cooling kits is with the way they direct the air onto the disc. Also, if the gap between the disc and the exit tube isn’t extremely small then the cooling effect will be minimal as the exiting air will just be mixed with existing turbulence and effectively dispersed.

 

[orcunince]

I think the problem with all these brake cooling kits is with the way they direct the air onto the disc. Also, if the gap between the disc and the exit tube isn’t extremely small then the cooling effect will be minimal as the exiting air will just be mixed with existing turbulence and effectively dispersed.

Yes, you’re right there’s no section behind the caliper where you can attach brake cooling ducts, and there isn’t enough space for the hoses either. Since it’s a GP circuit, the brakes are under a lot of load.

 

[orcunince]

I asked my software engineer friend in Türkiye to purchase all the ECU-related software he could find for the i20N and to roll back the thermostat settings. He didn’t let me down—he worked on it for a month, and yes, we can now set the thermostat to open at 85°C and 95°C.

At the same time, he developed an amazing custom software map. On the 95-octane map, the car now does 100–200 km/h in the 13-second range, which is extremely impressive under circuit conditions.

We also finished the season as champions—an i20N is now the Turkish Circuit Champion! As far as I know, this is the first time this car has ever won a championship on a racetrack.

Here is last race

 

[Spilner]

Congrats, great work

 

[gpaaa]

I asked my software engineer friend in Türkiye to purchase all the ECU-related software he could find for the i20N and to roll back the thermostat settings. He didn’t let me down—he worked on it for a month, and yes, we can now set the thermostat to open at 85°C and 95°C.

At the same time, he developed an amazing custom software map. On the 95-octane map, the car now does 100–200 km/h in the 13-second range, which is extremely impressive under circuit conditions.

We also finished the season as champions—an i20N is now the Turkish Circuit Champion! As far as I know, this is the first time this car has ever won a championship on a racetrack.

Here is last race

Congrats. Great smart -smooth driving, Two Questions.1) Do you have removed the catalytic convertor? Car seems not to engage the EGT limit, so it should perform around 250-255 hp. Second Whats the allignment values of the car? toe in/out, negative camber and caster?

 

[FlamingHedgehog]

Impressive performance considering the very ordinary conditions. The traction in the wet is extraordinary. Well done mate!

 

[orcunince]

Congrats. Great smart -smooth driving, Two Questions.1) Do you have removed the catalytic convertor? Car seems not to engage the EGT limit, so it should perform around 250-255 hp. Second Whats the allignment values of the car? toe in/out, negative camber and caster?

There are no catalytic converters or mufflers on the car, and for this reason the EGT does not exceed 650–700°C.

This second question is a bit risky for me, since I now have i20N competitors on the track and they might be reading here If you reach out via Instagram, I can share it with you there. insta

Impressive performance considering the very ordinary conditions. The traction in the wet is extraordinary. Well done mate!

This was the final race on the following day. During the formation lap, one car crashed due to the damp track. The formation was cancelled and we waited for 10 minutes on slick tyres. When the formation lap restarted, the track had become very wet, so I had to pit for wet tyres and ended up starting from the pit lane.

As usual, I finished 1st in my own category, but the real highlight is that I finished the race ahead of five TCR cars and one M4 GT4. This is a first in Turkey’s history, and I wanted to share it with you.

second race link

 

[Seherehe]

There are no catalytic converters or mufflers on the car, and for this reason the EGT does not exceed 650–700°C.

This second question is a bit risky for me, since I now have i20N competitors on the track and they might be reading here If you reach out via Instagram, I can share it with you there. insta




This was the final race on the following day. During the formation lap, one car crashed due to the damp track. The formation was cancelled and we waited for 10 minutes on slick tyres. When the formation lap restarted, the track had become very wet, so I had to pit for wet tyres and ended up starting from the pit lane.

As usual, I finished 1st in my own category, but the real highlight is that I finished the race ahead of five TCR cars and one M4 GT4. This is a first in Turkey’s history, and I wanted to share it with you.

second race link

Damn, that's awesome! What tyres do you use in the wet?

 

[orcunince]

Hello everyone,

We've officially finished our second season, and we're champions again this year!

We had 10 Hyundai i20Ns on the grid this season and enjoyed some really great races.

I'd like to share a few updates about the cars:

1. Coolant Temperature: The overheating issue has been resolved with a thermostat software modification. We've also all switched to Wagner radiators, and coolant temperatures now stay below 101°C, even in the hottest weather.
2. Brakes: The soft brake pedal and brake fading issues have been completely resolved. Switching to brake calipers with steel pistons is all you need to fix these problems.
3. Race Videos: I'm sharing all the videos from this season below. Feel free to watch and enjoy! 2026 Videos

 

[_LAH_]

Hello everyone,

We've officially finished our second season, and we're champions again this year!

We had 10 Hyundai i20Ns on the grid this season and enjoyed some really great races.

I'd like to share a few updates about the cars:

1. Coolant Temperature: The overheating issue has been resolved with a thermostat software modification. We've also all switched to Wagner radiators, and coolant temperatures now stay below 101°C, even in the hottest weather.
2. Brakes: The soft brake pedal and brake fading issues have been completely resolved. Switching to brake calipers with steel pistons is all you need to fix these problems.
3. Race Videos: I'm sharing all the videos from this season below. Feel free to watch and enjoy! 2026 Videos

Congrats on your victory, orcunince! That's some nice action indeed!

Regarding brake calipers, do any of the cars run standard calipers? Is it like a custom steel piston in the stock caliper or we're talking about off the shelf bbk calipers? (I believe standard pistons on the i20n are plated steel already)

I'm surprised steel pistons solved the brake fade issue, I would expect some material with less thermal conductivity to be utilized there like titanium pistons found on high end sports cars if the pistons are the solution.