Bump geometry is really important on these street car builds where you have 3 - 5" of suspension travel. Good job driving awareness! It matters more than many people know, and it doesn't take much to get away from an ideal setup. We enjoy working with you guys on these projects!
The hot muffler also helps air stay attached. Air's viscosity increases, and density decreases with temperature increase, both parameters lower the Reynolds number. RE# is flow velocity times density divided by viscosity. Mathematically increasing viscosity lowers the RE, as does reducing density.
Excuse me. Explain how increasing fluid (air is a fluid) temperature decreases density and viscosity? Furthermore, flow is relative to pressure (difference) over resistance (resistance determined by viscosity and vessel radius).🧐
@@Bimmer_Bill Air's density decreases with an increase in temperature, see hot air balloons, or intercoolers on turbocharged cars. It's kinematic viscosity also increases with temperature. Why this happens, I don't know, it would be nice to understand, but that's what happens. "Furthermore, flow is relative to pressure (difference) over resistance (resistance determined by viscosity and vessel radius)." Air mainly interacts with air, objects influence air only insomuch as the boundary layer caused by said object.
@@rolandotillit2867 I’m very familiar with density brother which is proportional to mass/volume. However temperature decreases fluid viscosity. So if you “spread” air molecules apart there should be less resistance (decreased viscosity = decreased flow resistance)
@@Bimmer_Bill That's incorrect. There are intermolecular forces within liquids, far less with air. When you heat a liquid the increased kinetic energy in the liquid molecules overcomes the intermolecular forces lowering viscosity. These are not present to the same extent in gases, thus as the kinetic energy of the molecules increases, it increases the resistance to flow.
Where is the next track day? Would really love to see this setup go around Road America. Hopefully you can get it out there next year as it’s pretty much end of the season here now
I just found you guys. I’ve got an M2 on order. Previous E46 M3, E92 M3 current X3M and trading in my Cayman S for the M2. I’m going to occasionally track my M2 at Apex here in Arizona (not nearly to your level) so I’m really interested to see your feedback of track biased components. Mine is coming with MP sport suspension and I’m adding Apex forged wheels 20/10 & 20/11 with Michelin Cup 2s as a starting point. Thanks for the great videos and explanations!
Are you getting the new Alpha-N G87 M2 Carbon Fixed Rear Wing - Class 3 by IND Distribution? They started selling it on their website. It's the best looking wing for the G87 M2 so far.
Nice Vid! You might wanna check out the brake cooling from the guys of "Speedengineering GmbH" (Video in german) They proved 200* Celsius less at the breaks on a track in Germany.
Bump geometry is really important on these street car builds where you have 3 - 5" of suspension travel. Good job driving awareness! It matters more than many people know, and it doesn't take much to get away from an ideal setup. We enjoy working with you guys on these projects!
This content is fire. I was looking for a roll Center correction kit and you guys are the only ones who really understand suspension
Looking forward to the on-track impressions of the changes.
this thing is finally starting to be fast with all those decals :)
active autowerks been around since when I first started taking interest in cars in the 90s. great to see that they're still going strong!
Livery is NICE!
Alex looks better than ever. Miss you guys!
keep your work !
Great video…love what you’re doing to the M2!
Living the dream! Keep it up
Great work guys.
Big ding 🚀
Smart kid! 🙌
Jackie you are a bad influence, I was working towards a supra but now i might have a new love, Looks incredible!
PHD, you need to remove the brake dust shields to keep those nice girodiscs cool.
Ok Bee Vang, big shaft guy. 😂
I'm anxious to see how these new changes perform on track, I suspect far more records will be broken next season.
Car is coming along mega dude. Hit us up if you want any aero for the project 👊🏼
The hot muffler also helps air stay attached. Air's viscosity increases, and density decreases with temperature increase, both parameters lower the Reynolds number. RE# is flow velocity times density divided by viscosity. Mathematically increasing viscosity lowers the RE, as does reducing density.
Excuse me. Explain how increasing fluid (air is a fluid) temperature decreases density and viscosity? Furthermore, flow is relative to pressure (difference) over resistance (resistance determined by viscosity and vessel radius).🧐
@@Bimmer_Bill Air's density decreases with an increase in temperature, see hot air balloons, or intercoolers on turbocharged cars. It's kinematic viscosity also increases with temperature. Why this happens, I don't know, it would be nice to understand, but that's what happens.
"Furthermore, flow is relative to pressure (difference) over resistance (resistance determined by viscosity and vessel radius)."
Air mainly interacts with air, objects influence air only insomuch as the boundary layer caused by said object.
@@rolandotillit2867 I’m very familiar with density brother which is proportional to mass/volume. However temperature decreases fluid viscosity. So if you “spread” air molecules apart there should be less resistance (decreased viscosity = decreased flow resistance)
@@Bimmer_Bill That's incorrect. There are intermolecular forces within liquids, far less with air. When you heat a liquid the increased kinetic energy in the liquid molecules overcomes the intermolecular forces lowering viscosity. These are not present to the same extent in gases, thus as the kinetic energy of the molecules increases, it increases the resistance to flow.
@@rolandotillit2867 as I’m an expert on blood flow (liquid) I will defer to your explanation (for air), since it makes sense.
Lovin it
Where is the next track day? Would really love to see this setup go around Road America. Hopefully you can get it out there next year as it’s pretty much end of the season here now
Before watching this the system sounds awesome scoobiefreak86 installed this on his f80 M3
Lol shoutout to Home Depot for catalytic converter theft deterrent haha.
I just found you guys. I’ve got an M2 on order. Previous E46 M3, E92 M3 current X3M and trading in my Cayman S for the M2. I’m going to occasionally track my M2 at Apex here in Arizona (not nearly to your level) so I’m really interested to see your feedback of track biased components. Mine is coming with MP sport suspension and I’m adding Apex forged wheels 20/10 & 20/11 with Michelin Cup 2s as a starting point. Thanks for the great videos and explanations!
Of course! We're happy to help on any parts as well, just email us at info@phdracinglab.com!
How much weight was saved by taking out the rear interior?
Are you getting the new Alpha-N G87 M2 Carbon Fixed Rear Wing - Class 3 by IND Distribution? They started selling it on their website. It's the best looking wing for the G87 M2 so far.
Hey Jackie what video shows how the chassis mount wing attaches to the Supra?
Big shaft life
Where's your next track day event?
Curious …. So far cost wish how much this far in? Gotta dump that muffler right ? Haha
I don’t see high speed compression for JRZ RS PRO listed on the website. Wondering how would that affect the lap times
Is the m2 racing at laguna seca by any chance?
Look up where the ‘rule of thumb’ comes from 😉
Nice Vid! You might wanna check out the brake cooling from the guys of "Speedengineering GmbH" (Video in german) They proved 200* Celsius less at the breaks on a track in Germany.
Time to ditch the back box and do a single exit 😁
I can’t stop laughing big shaft