Hard track use upgrades
MBWorld Fanatic!
Joined: May 2008
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From: Overland Park, KS
‘24 BMW iX M60
I just found out that AP Racing have J-Hook rotors for the GTS. These MAY, and I stress may as I don’t know, work for the GTR with iron brakes also.
If they do fit, they are a fantastic rotor. I’ve used them on an ‘09 Nissan GTR with great results:
https://www.essexparts.com/essex-des...rcedes-amg-gts
If they do fit, they are a fantastic rotor. I’ve used them on an ‘09 Nissan GTR with great results:
https://www.essexparts.com/essex-des...rcedes-amg-gts
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Joined: Jun 2018
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GTR
I just found out that AP Racing have J-Hook rotors for the GTS. These MAY, and I stress may as I don’t know, work for the GTR with iron brakes also.
If they do fit, they are a fantastic rotor. I’ve used them on an ‘09 Nissan GTR with great results:
https://www.essexparts.com/essex-des...rcedes-amg-gts
If they do fit, they are a fantastic rotor. I’ve used them on an ‘09 Nissan GTR with great results:
https://www.essexparts.com/essex-des...rcedes-amg-gts
I know Girodisc has front and rear rotors for the GTR
MBWorld Fanatic!
Joined: May 2008
Posts: 2,524
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From: Overland Park, KS
‘24 BMW iX M60
GTS rotors are the same as GTR steel rotors they do fit. Exotics Racing Las Vegas has the J hook fronts on their GTR. But I believe they are not as thick as the stock rotors so you might have to get a different pad compared to stock.
I know Girodisc has front and rear rotors for the GTR
I know Girodisc has front and rear rotors for the GTR
The nice thing about the AP Racing rotors is that you can just replace the rotors ring when worn and re-use the hat. Great rotors!
Bish
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GTR
Yes you can run the 295/30/19 front and 335/25/20 rear. They work great on the car no rubbing what so ever. You might want to put a little more negative camber than stock just so you don’t kill the outside of the fronts
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AMG GT
What sizes are you running? 285 and 335?
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AMG GTR
Yep 285, 335 from Mclaren P1. Trofeo's are a level up to regular Cup2. Way better grip, a lot better heat resistance and consistent times lap by lap. In cup2 after 2 fast laps you can fell tires have enough. One weaknes is that they are big. In fast corners or on fast tracks they touch mudguards so preapre for holes 
However i heard some guys use cup2 zp and they are very satisfied and no mudguard issue, but not sure if they are better in performance than Trofeo R. Maybe this direction will be better. They look pretty much like new cup2 R which are probably better than trofeo's. I will try them on my Porsche when i finish trofeo's.
However i heard some guys use cup2 zp and they are very satisfied and no mudguard issue, but not sure if they are better in performance than Trofeo R. Maybe this direction will be better. They look pretty much like new cup2 R which are probably better than trofeo's. I will try them on my Porsche when i finish trofeo's.
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Senior Member
Joined: Jun 2018
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GTR
Member
Joined: May 2019
Posts: 77
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AMG GT
Yep 285, 335 from Mclaren P1. Trofeo's are a level up to regular Cup2. Way better grip, a lot better heat resistance and consistent times lap by lap. In cup2 after 2 fast laps you can fell tires have enough. One weaknes is that they are big. In fast corners or on fast tracks they touch mudguards so preapre for holes
However i heard some guys use cup2 zp and they are very satisfied and no mudguard issue, but not sure if they are better in performance than Trofeo R. Maybe this direction will be better. They look pretty much like new cup2 R which are probably better than trofeo's. I will try them on my Porsche when i finish trofeo's.
However i heard some guys use cup2 zp and they are very satisfied and no mudguard issue, but not sure if they are better in performance than Trofeo R. Maybe this direction will be better. They look pretty much like new cup2 R which are probably better than trofeo's. I will try them on my Porsche when i finish trofeo's.
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AMG GTR
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AMG GT
Wait, which bit of Europe are you in, I’m in the UK and I can’t find ZP tyres anywhere for a sensible price, €3,000 is the best. Where are you getting them from?
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AMG GTR
I'm from Poland. Right now zp number in storages is "ZERO". At least for central and east Europe. My Michelin guy can't get info when they be available again. It's probably due that Michelin is preparing cup2 R launch. However i have prices for R in 285 and 335. I will get info on Monday when they be available.
You can try to order them directly from USA. I'm waiting for reply regarding shipping costs.
You can try to order them directly from USA. I'm waiting for reply regarding shipping costs.
MBWorld Fanatic!
Joined: May 2008
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From: Overland Park, KS
‘24 BMW iX M60
Do you have a good pricing source for the R7s? I’ve always purchased tyres from Tirerack due to the convenience and generally good pricing, but if you have a favourite place to buy them from, let me know.
TIA.
Bish
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From: Behind the wheel
The best or nothing
MBWorld Fanatic!
Joined: May 2008
Posts: 2,524
Likes: 1,007
From: Overland Park, KS
‘24 BMW iX M60
Bish
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From: Canada
2019 E63s
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AMG GT
I’m in a quandary. I want to buy Renntech brake cooling ducts and a geo setup, but I think the TIKT ducts are better, the fronts at least. They come with really good testing data and have a much larger opening than the Renntech ones, but they don’t appear to have a rear set yet. Has anyone used the Renntech ducts and had a dramatic improvement?
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
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Joined: Jun 2018
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GTR
I’m in a quandary. I want to buy Renntech brake cooling ducts and a geo setup, but I think the TIKT ducts are better, the fronts at least. They come with really good testing data and have a much larger opening than the Renntech ones, but they don’t appear to have a rear set yet. Has anyone used the Renntech ducts and had a dramatic improvement?
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
MBWorld Fanatic!
Joined: May 2008
Posts: 2,524
Likes: 1,007
From: Overland Park, KS
‘24 BMW iX M60
I’m in a quandary. I want to buy Renntech brake cooling ducts and a geo setup, but I think the TIKT ducts are better, the fronts at least. They come with really good testing data and have a much larger opening than the Renntech ones, but they don’t appear to have a rear set yet. Has anyone used the Renntech ducts and had a dramatic improvement?
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
I’m sure a Renntech geo will be really good, so I don’t want to **** on their chips by getting their competitor’s ducts if they aren’t any better.
Even though we were unable to come to terms with Tikt to help organise a group buy, they did tell me that their rear ducts were just a few weeks away.
Like you, I believe that the Tikt product looks like it is superior to the Renntech one, and MG1422 has had great results using just the front Tikt ducts at COTA, which is tough on brakes. Also his car is on iron brakes, not the CCMs; hence more prone to fade.
IF you intend to drive on track with ESP Off, and you aren’t massively hard on the brakes, I believe that your OEM rear brakes especially with the RSC1s will hold up well, even without rear brake ducts installed initially. So, I’d buy the Tikt front ducts; drive the ***** off the car and then just install the rear ducts when they’re available. Just keep an eye on the rear pad depth after the track.
Bish
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Joined: May 2019
Posts: 77
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AMG GT
Peter,
Even though we were unable to come to terms with Tikt to help organise a group buy, they did tell me that their rear ducts were just a few weeks away.
Like you, I believe that the Tikt product looks like it is superior to the Renntech one, and MG1422 has had great results using just the front Tikt ducts at COTA, which is tough on brakes. Also his car is on iron brakes, not the CCMs; hence more prone to fade.
IF you intend to drive on track with ESP Off, and you aren’t massively hard on the brakes, I believe that your OEM rear brakes especially with the RSC1s will hold up well, even without rear brake ducts installed initially. So, I’d buy the Tikt front ducts; drive the ***** off the car and then just install the rear ducts when they’re available. Just keep an eye on the rear pad depth after the track.
Bish
Even though we were unable to come to terms with Tikt to help organise a group buy, they did tell me that their rear ducts were just a few weeks away.
Like you, I believe that the Tikt product looks like it is superior to the Renntech one, and MG1422 has had great results using just the front Tikt ducts at COTA, which is tough on brakes. Also his car is on iron brakes, not the CCMs; hence more prone to fade.
IF you intend to drive on track with ESP Off, and you aren’t massively hard on the brakes, I believe that your OEM rear brakes especially with the RSC1s will hold up well, even without rear brake ducts installed initially. So, I’d buy the Tikt front ducts; drive the ***** off the car and then just install the rear ducts when they’re available. Just keep an eye on the rear pad depth after the track.
Bish
Senior Member
Joined: Jun 2018
Posts: 359
Likes: 152
GTR
I made contact with him today. He says that the bump-steer steering links are also required as the ducts would foul the OE links. Did you also install the bump-steer kit?
I will do exactly this I think. I've sent an email to TIKT to enquire about the rears, but I'll have a quick session or two just to see what's what.
I will do exactly this I think. I've sent an email to TIKT to enquire about the rears, but I'll have a quick session or two just to see what's what.
The bump steer kit is not required for you to run the ducts. That is BS
