2023.10.31 - LRP Mass Tuning - Session 4 with Overlay

[@Efficient659]

Hey, I was at this event and the 11/18 one. I did not know the gray M2 was you, but you gave me the courage to push for sub 1s in my M3! Great driving!

[@dvas2686]

Hi, looks like you did better than "just" getting sub 1 min, Congrats! Judging by your vid, it looks like you and the car are pretty fast but unbalanced and a bit of a handful to drive. Look to get a better balance and keep finding places to push a little!

[@Efficient659]

@@dvas2686 quite the opposite actually. The video uploaded at LRP was with a replica GTS wing and it made the front end very numb. I didn’t have a very good alignment but was still able to get consistent ~59.5 almost all sessions on heat cycled tires. The last event I was able to do a 58.8 on fresh tires but slightly less aggressive alignment. I also added a replica gt4 lip that really helped with front end balance. I don’t think there is more than a couple tenths left on the table with the v730s.

[@Efficient659]

@@dvas2686 without any aero, my best was was a 59.8 but that was more of a handful. I’ve since updated to swift springs and the handling is definitely much better. Next season, I will try some laps without aero to see how much of an improvement I can get!

[@samellio]

Great vids and channel 👍👍 Would you mind answering some questions about your Bilstein suspension? Are you still on the same springs and valving that comes with the kit? Does the progressive spring foul the suspension turret and prevent enough camber adjustment? I’m guessing it doesn’t as you have over 3 degrees camber. Do you find the b16 kit ok for track? Not too soft? It looks great. And price wise seems to beat all the other kits on market. Thanks 🙏

[@dvas2686]

Thanks for the kind comments. I installed my the Bilstein PSS10 as they came from the factory in 2017 along with Ground Control camber plates and have not touched them since, other than adjusting the stiffness. The springs I received were 515lbs up front and 900 lbs rear and I have not changed them or the valving. I've run up to 3.4 negative camber without issue, which was more than my setup needed and have dialed it back a touch. I think they are as much as one needs for a typical HPDE and are a great value. Built like a tank, there's a reason why Porsche uses Bilstein as an OEM supplier. Over wavy pavement, there is much better control than the stock setup - with the stock suspension the tires tended to bounce out of control in some situations. The Bilsteins remind of the very controlled ride in some of the Porsches I have driven. 30k miles and 80+ track days on the with no issues. Much better control than stock and love the adjustability for track.

[@samellio]

Thanks a lot for the feedback, extremely useful!! I have F82, got it in 2018, fitted GC camber plates and pads and have been tracking it ever since. Swapped for Mperformance has kit a couple of years ago which made it quicker but finally looking to swap suspension and hope it feels a bit lighter and slightly quicker. You’re the only reference point for B16 I found online, keep up the good work 👍👍

[@cammgt3rs370]

D Vas I saw you video posted in 2019 and you are still running great runs. Any mechanical issues with the M2 or has it been reliable all these years?

[@dvas2686]

@cammgt3rs370 Thanks for watching and commenting. Overall, I have to say that the M2 has been very reliable. Just hit over 30k miles over 80+ track events this year. And other than an occasional limp mode because of not enough gas in the tank, all she needed was periodic oil changes and one new set of spark plugs. Pretty bullet proof...until this past summer when I noticed the diff leaking which required a gasket change and then later the OEM plastic charge pipe blew up on a very hot track day, despite being at stock power. Nevertheless, given the amount of track days and heat cycles the car has gone through, I think these two items were relatively minor issues.