HPDE experiments, results and observations

[rhyary]

Visually seeing the ABS kicking in:
Blue line is Brake Pressure
Dark line is Longitude Acceleration
.

[rhyary]

Because AiM's RS3 Beta now links the SmartCam video to the data, you can point to the data and see exactly where you were on the track and if other cars are involved.
.
Truly amazing capability if you are into data and if you have to deal with winter and NO trackdays until March 2021.
.

[dparm]

Originally Posted by rhyary

Because AiM's RS3 Beta now links the SmartCam video to the data, you can point to the data and see exactly where you were on the track and if other cars are involved.
.
Truly amazing capability if you are into data and if you have to deal with winter and NO trackdays until March 2021.
.

Surprised that took so long. Cosworth has had it for years. It is a good feature to bring more context to the data, I agree.

[Kelse92]

Originally Posted by rhyary

Because AiM's RS3 Beta now links the SmartCam video to the data, you can point to the data and see exactly where you were on the track and if other cars are involved.
.
Truly amazing capability if you are into data and if you have to deal with winter and NO trackdays until March 2021.
.

I am still using OG RaceStudio, guess I need to upgrade haha this is a very nice feature!

[dparm]

Originally Posted by Kelse92

I am still using OG RaceStudio, guess I need to upgrade haha this is a very nice feature!

Use backup copies of your files. I have heard of problems with the RS3 beta corrupting data.

[rhyary]

Originally Posted by dparm

Use backup copies of your files. I have heard of problems with the RS3 beta corrupting data.

For me until a week a go the beta was unusable.
The last update fixed many small things and I was able to use it for a good hour with out crashing or messing up things

Absolutely point it to a beta data directory and copy to the beta folders few sessions to work on. Don't point it to you RS2 data directory!!

[rhyary]

I have taken few virtual coaching sessions with Racers360 and I really liked the outcome. Because my SmartyCam video contains a lot of information, I feel that the virtual coach has a good insight into my driving.

I uploaded the sessions into my YouTube account but I am not making these sessions public.

If any of you want to view a virtual session, and decide for yourself if it would be helpful to you, send me a private message with an email address and I can provide you access to the session for a limited time.
(I asked Racers360 if I can do it and got permission)

[rhyary]

I was able to get 2 x MPSS 275/35/19 2020 like new for $424 or $212/tire from eBay.

This will now allow me to test 275 vs 295 on the rear with same MPSS tire

I was happy with the 295 but could not get the temp high enough, so now I can test the 275 for my objective price. I suspect the 275, being narrow, will have a better chance to come up to temp.

Front with the 275 will most likely be 265/35/19 Cup2 I have in inventory

The spring in the back is going from 1000 to 1100.

[rhyary]

Getting ready for 2021
.

[Datka]

Those brake ducts look exactly like mine. Got it done at ACM?
Those are absolutely necessary at WGI if you plan to go there next year.
Tom installed them for me and some other go fast parts in preparation for the 2021 season.
See you at WGI

[rhyary]

Originally Posted by Datka

Those brake ducts look exactly like mine. Got it done at ACM?
Those are absolutely necessary at WGI if you plan to go there next year.
Tom installed them for me and some other go fast parts in preparation for the 2021 season.
See you at WGI

yes. still at ACM
WGI 8/30 and 8/31

[Datka]

Originally Posted by rhyary

yes. still at ACM
WGI 8/30 and 8/31

With SCDA? I should be there. Probably will be hot but we installed do88 dct cooler and do88 radiator. Oil cooler was upgraded a few years ago.
Just the bigger oil cooler didn't keep oil temp. down, just helped to cool down quicker.

[rhyary]

Originally Posted by Datka

With SCDA? I should be there. Probably will be hot but we installed do88 dct cooler and do88 radiator. Oil cooler was upgraded a few years ago.
Just the bigger oil cooler didn't keep oil temp. down, just helped to cool down quicker.

Yes, SCDA.
Double sessions each day.
Very little rest per hour.
I was on full set of Do88 this year and no limp mode doing double sessions.

Just the way I like it :-)

[rhyary]

To any one that care here are the differences between 295/30/19 and 305/30/19.

Note that the 305/30/19 is the correct OEM diameter and 295/30/19 is a bit shorter.

295/30/19
PS91 section width 11.9" tread width 10.8"
MPSS 11.9 and 11.5 (widest and most square)
MPS4S 11.9 and 11"
RR 11.8 and 11"
R888R 11.9 and 11.3"


305/30/19
Corsa 12.3 and 12" (very square)
GY F1 3R 12.3 and 11.3
MPSCup2 12.3 and 11
V720 12.3 and 11

[e36clubracer]

Originally Posted by rhyary

Getting ready for 2021
.

Who is the maker of the brake duct backing plates? Are they specific for your brake kit?

[rhyary]

Originally Posted by e36clubracer

Who is the maker of the brake duct backing plates? Are they specific for your brake kit?

Sorry, I don't know who ACM is using

[//steve\\]

Originally Posted by rhyary

Getting ready for 2021
.

If you're looking for some roll center correction/bump steer correction on those SPL parts the spacers are installed in the wrong place. They should go above the joint, not below.

[Datka]

Originally Posted by e36clubracer

Who is the maker of the brake duct backing plates? Are they specific for your brake kit?

Burkhart engineering CF brake backing plates. They are lighter than the bimmerworld ones, closer to the original dimensions, bolt on to the original mounting points and are the only ones that fit stock brakes or any BBK.

[rhyary]

Originally Posted by Datka

Burkhart engineering CF brake backing plates. They are lighter than the bimmerworld ones, closer to the original dimensions, bolt on to the original mounting points and are the only ones that fit stock brakes or any BBK.

Thanks David

[rhyary]

Originally Posted by //steve\\

If you're looking for some roll center correction/bump steer correction on those SPL parts the spacers are installed in the wrong place. They should go above the joint, not below.

noted. Passed the information to ACM

[e36clubracer]

Originally Posted by Datka

Burkhart engineering CF brake backing plates. They are lighter than the bimmerworld ones, closer to the original dimensions, bolt on to the original mounting points and are the only ones that fit stock brakes or any BBK.

Thanks for the info, do you know if they are actually directing air into the rotor center or blowing on the rotor face? I went to their website and it’s hard to tell.

[sbo76]

This is a great thread! I drive a semi-race prepped E46 (just under 3000 lbs). I have historically ran NT01 (275/19 square) or R888 (275/19 square) with great results. I recently changed to Michelin S8M (265/19 square) and have loved them. I don't have all the data you have been keeping but i know that the NT01's last forever and have great traction. The Michelin S8M are next level for me although they wear very fast. I am surprised at how quickly you go through tires so i guess the extra HP and LBS take a toll on them. Keep up the posts, i am learning a ton!