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Old 10-05-2018, 04:55 PM   #4775
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Originally Posted by DerekM View Post
Glad to hear your response. I guess my next move will be when the Sachs dampers wear out. What should I replace those with? I was considering Bilstein B8s. My goal with the car is to make it as fun a track toy as I can but have it drive well on the highway too. I plan on visiting several tracks per year that are 6 to 12 hour away. This car seems to do that well with a couple extra tires along for the ride.
Also I am considering a more track dedicated car for local tracks That is a little faster. VIR is an hour from my house and I will drive there more than anywhere else. What are good choices in the 15 to 20 range? I am looking at e46 m3, mustang gt, c5 corvette. I would like to have a well balanced car that won't kill me on wearables or kill me dead.
Thanks Derek
A lot of it comes down to not up front cost, but the upkeep and running cost of each of those cars. What are you willing to spend in that area?

Replacement OEM Sachs dampers can be found lightly used for very cheap!
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Old 10-05-2018, 04:56 PM   #4776
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I'm not looking to get addicted to (purple)crack.
71R is already dangerously close to purple crack grip, for a very short period of time.
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Old 10-05-2018, 04:56 PM   #4777
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Speaking of VR1s....

Still NDA?
Unfortunately.

Trust me, I want to talk about things.
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Old 10-05-2018, 11:14 PM   #4778
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how someone can help me getting faster on the track

my question is about trail braking

i think i did trail braking in my video

can someone point out am i did the trail braking in the video or not



here is video link





by the way i will take anything for me to be faster

thx
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Old 10-05-2018, 11:21 PM   #4779
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You're not often trail braking, as your inputs are very punctuated, but there are some moments where you are definitely using the brakes to help balance and rotate the car on entry.

Have you considered hiring yourself a driving coach? You have a pretty good level of confidence in your car, and you'll pick up time by cleaning up the fundamentals and focusing on clean, rather than fast.

The electronics are definitely interfering with your driving here and there.
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Old 10-06-2018, 06:52 AM   #4780
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Quote:
Originally Posted by CSG Mike View Post
A lot of it comes down to not up front cost, but the upkeep and running cost of each of those cars. What are you willing to spend in that area?

Replacement OEM Sachs dampers can be found lightly used for very cheap!
I'm guessing 3 to 5 per season for 10-15 track days after the car is set up correctly. That would be tires, brake pads, rotors and fluids. I would like to go the e46 route. Am I in the ballpark? Do you have other options that might work better? Thanks again for sharing your experience.
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Old 10-06-2018, 06:18 PM   #4781
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What hot pressures/temps do Hankook RS4 tires like to see?


Here is the pressure and (outside/middle/inside) tire temp data from my last session on the (predominantly right turn) track layout. All data from Joe's Racing gauges:

Run 5/
1:15.82 fastest lap / 1:14.30 RaceChrono optimal

LF 154/156/160 39.6 psi
RF 130/140/151 39.2 psi
RR 124/139/142 34.7 psi
LR 132/139/140 34.7 psi

Temps measured in the order above, then pressures done in same order. Measured right off the track after a 1/4 mile cool down, tops.


1) Will running lower front "hot pressures" increase front end grip?


2) If so, will this also translate to more initial bite on turn in?
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Old 10-06-2018, 10:39 PM   #4782
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Originally Posted by DerekM View Post
I'm guessing 3 to 5 per season for 10-15 track days after the car is set up correctly. That would be tires, brake pads, rotors and fluids. I would like to go the e46 route. Am I in the ballpark? Do you have other options that might work better? Thanks again for sharing your experience.
It'll depend on heavily ont he pads, but that would be in the ballpark.

With equal tires, a 86 will cost you less than half the running cost of a E46.
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Old 10-06-2018, 10:40 PM   #4783
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What hot pressures/temps do Hankook RS4 tires like to see?


Here is the pressure and (outside/middle/inside) tire temp data from my last session on the (predominantly right turn) track layout. All data from Joe's Racing gauges:

Run 5/
1:15.82 fastest lap / 1:14.30 RaceChrono optimal

LF 154/156/160 39.6 psi
RF 130/140/151 39.2 psi
RR 124/139/142 34.7 psi
LR 132/139/140 34.7 psi

Temps measured in the order above, then pressures done in same order. Measured right off the track after a 1/4 mile cool down, tops.


1) Will running lower front "hot pressures" increase front end grip?


2) If so, will this also translate to more initial bite on turn in?
Front pressures are good. Rear is slightly high. You need less rear camber for your current setup/driving style.

More likely, your setup/driving is front loaded.
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Old 10-06-2018, 10:52 PM   #4784
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Originally Posted by CSG Mike View Post
More likely, your setup/driving is front loaded.

I'm not sure I know what you mean by this, Mike. Could you expand, please?


Are you referring to the overall handling balance of the car? Or maybe 'rake' of the car? I believe the rear fender-lip-to-ground distance is set 1/4" higher then the front (with me in the cockpit).

Should I maintain a level ride height? And if so would you advise lowering the rear or raising the front to get there? I believe I'm -26mm from stock all around with HKS SP IV coils.


Also, I have Hotchkis bars on the car front & rear. Front on the softest setting, rear on the second softest.
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Old 10-06-2018, 11:02 PM   #4785
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Quote:
Originally Posted by CSG Mike View Post
You're not often trail braking, as your inputs are very punctuated, but there are some moments where you are definitely using the brakes to help balance and rotate the car on entry.

Have you considered hiring yourself a driving coach? You have a pretty good level of confidence in your car, and you'll pick up time by cleaning up the fundamentals and focusing on clean, rather than fast.

The electronics are definitely interfering with your driving here and there.

thx for point out!!

currently waiting for the racing seating with 6 points harness get install

this video was my first track day with re71r 245 40 17
was using stock tire for last 4 track day


so i need work on trail braking for now right ?
and disable the traction control fully by hold the left button right ?
or should i do a pedal dance thing ?

i dont know if the track has the driving coach for this track
but they do have a $1000 per one track day with instructor
should i try that ?

and what kind of question should i go with if i take that deal
i get group which we rent a track for one day and share the price 500 per day with 5-6 section with 20 min per section
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Old 10-07-2018, 02:08 AM   #4786
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Originally Posted by Turbo View Post
I'm not sure I know what you mean by this, Mike. Could you expand, please?


Are you referring to the overall handling balance of the car? Or maybe 'rake' of the car? I believe the rear fender-lip-to-ground distance is set 1/4" higher then the front (with me in the cockpit).

Should I maintain a level ride height? And if so would you advise lowering the rear or raising the front to get there? I believe I'm -26mm from stock all around with HKS SP IV coils.


Also, I have Hotchkis bars on the car front & rear. Front on the softest setting, rear on the second softest.
You and/or your car overuses the front tires relative to the rear.
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Old 10-07-2018, 02:09 AM   #4787
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Originally Posted by jayliu.jiayu@gamil.com View Post
thx for point out!!

currently waiting for the racing seating with 6 points harness get install

this video was my first track day with re71r 245 40 17
was using stock tire for last 4 track day


so i need work on trail braking for now right ?
and disable the traction control fully by hold the left button right ?
or should i do a pedal dance thing ?

i dont know if the track has the driving coach for this track
but they do have a $1000 per one track day with instructor
should i try that ?

and what kind of question should i go with if i take that deal
i get group which we rent a track for one day and share the price 500 per day with 5-6 section with 20 min per section
If your local instructor is proven, that would be a great route to go. I also offer private coaching if you're interested.

You should be using the pedal dance. First, explore the limits in a safe area.

If you are renting an entire venue for the whole day, I can accomplish a LOT with you in one day. I can go a full 8 hours of seat time, if you can.
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