Realistic top speed and tire choice for circuit driving

[Humble]

I'll dust this off a bit...

Realistically I think 130-140 might be your limit mainly due to aero and I speak from experience. Having recently played with a mclaren mp4-12c it was nice to see the differences in aerodynamically affected acceleration. You find out on track that the bug accelerates very quick to about 90mph and that's where aero starts to hold you back. Above 90mph you have to work harder for each 10mph than that 930 on the same track. In my case, I had my rear wing on but I didn't have my front air dam on but I don't think it would have helped much on the straights. You only have so much road at a track, so hitting 150mph in any car is fast, but slowing down reliably, that's the key. I don't think you'll have any problems in the braking department

[Luismj]

Originally Posted by Humble

... I don't think you'll have any problems in the braking department

What type of front suspension you have? And tire size?

[Humble]

I run 87 944T spindles on 1303 arms, sectioned 944T struts with koni adjustable A1 golf/rabbit strut inserts, 87 944T 298mm disks with 87 930 calipers and master cylinder. I run a 245/40-17 semi slick in the dry or 225/50-16 summer tire for rain up front

[Luismj]

Originally Posted by Humble

I run 87 944T spindles on 1303 arms, sectioned 944T struts with koni adjustable A1 golf/rabbit strut inserts, 87 944T 298mm disks with 87 930 calipers and master cylinder. I run a 245/40-17 semi slick in the dry or 225/50-16 summer tire for rain up front

I believe that the suspension of the 1303 is much better than the standard and no misalignment with the big brakes.