Bedford Autodrome 24/06/24 BMW M4 + Radical
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- Опубликовано: 23 июн 2024
- Huge fun trying to keep this Radical type car in sight!!
Very hot day, working aircon in the M4 is an absolute luxury 😍
The car was on Yokohama AD09. With pressure set at 28 psi, once past about 70-80c they got pretty greasy then at around 100c they were only good for drifting.
Again, the car was slower than much smaller Cup2 that are similarly as good on the road, yet don't completely fall off when hot.
I've got some newish A052 to try but plan to get some more camber before fitting them. To do this the car needs adjustable camber and toe arms at the rear which is expensive 😭
Will run some used BMW cup 2 until then, bored of the AD09 now 😂 
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Awesome. I almost went to this. Would be great to try and follow your lines round the track. Ive done a handful of track days and im looking to start pushing the car a bit more.
Ahh shame you didn't! Do it, MDM is there as a safety if you need it 👍👍
Nice video again Sam. Different sound track this time? IE No squeaky brakes lol 🙂
Thank you 🙏 the brakes were squeaking though 😂😂 there was only about 3 mm left by the end 😬
Great video again! Also can't wait to hear what's you opinion on the a052 vs Ar-1 or Cup2 and longetivity of those.
Thanks! Thanks also for your hardrace recommendation, I was looking at SPL but will check these out. The car already has camber plates and Bilstein B16 passive dampers. Running about -3 fr and -2 rear but it needs much more. Think with the A052 over 4 deg front would be better, 3 deg rear maybe, only one way to find out.
I'm sure you know but all those tyres will die quickly without enough camber. The cup 2 will last the longest by probably hundreds of track miles, then AR-1 (which for the type of tyre it is, actually lasts well), then A052 which I wouldn't use if paying full retail, they wear out too quickly!! If you use cup 2 make sure you get the star marked BMW tyres, I've used lots of different versions of cup 2 and found that only the star marked ones are quick on the M4. Mostly, I just use the cup 2 from F87 M2 as there's good, cheap, supply and they're very quick. It really doesn't matter they're slightly smaller as the car will still put in competitive laps on them.
Looks fun at least! Very interesting about the AD09s - I'm all set for A052s on the GT4 but the fronts are on back order till autumn prob and I need them in 3 weeks. So was all set on AD09s as an alternative..... But if they're worse than Cup2s what's the point ha.
Now thinking rear A052 and front AR1s as an intermediate option 🤔
I think you'll be quicker on A052 but don't be surprised if you get through a set in a day! As above I'm only using A052 because they were less expensive, I wouldn't pay full retail for them. If you can get a full set of AR-1 maybe that's the answer, they won't last as long as cup 2 but probably will be a bit quicker. I'm sure you know they're noisy and ride hard.