The upgrades are done. Or should I say Dundon?
01-08-2023 | 06:45 PM
#17
Burning Brakes
Joined: Aug 2022
Posts: 868
Likes: 443
From: Florida
The TQ/HP gains provided by the Dundon headers/OAPs represent the best aftermarket tune available for the GT4. Porsche really squeezed most of the juice out of the Flat6 when it comes to tuning. All they really left on the table is what the EPA forced them to leave with the exhaust regulations. Dundon headers/OAPs gave it back to us.
Avera, There were a few reasons why I went with the R's over the regular Cup 2's.
1. There was only a 200 price difference between the two for a complete set
2. There was a 9% price increase from Michelin that went into effect Jan 1
3. (and this is really the biggest one) The R's were in stock
My understanding is that they are even more track focused and will wear faster than the Cup 2's. My car originally had the Dunlops on them.
1. There was only a 200 price difference between the two for a complete set
2. There was a 9% price increase from Michelin that went into effect Jan 1
3. (and this is really the biggest one) The R's were in stock
My understanding is that they are even more track focused and will wear faster than the Cup 2's. My car originally had the Dunlops on them.
Avera
01-09-2023 | 01:48 AM
#18
Instructor
Joined: Feb 2020
Posts: 159
Likes: 39
[QUOTE
@IndigoInkTaco no tune is necessary with this current configuration. I do not think I could justify the cost for one right now as I do not think I would be able to notice the difference. If this were a turbo it would have been done.[/QUOTE]
I'm in the same boat in this for over a year now, but because i have catless headers it blinks engine sign in my dash permanently which i may end up to tune in order to remove it.
@IndigoInkTaco no tune is necessary with this current configuration. I do not think I could justify the cost for one right now as I do not think I would be able to notice the difference. If this were a turbo it would have been done.[/QUOTE]
I'm in the same boat in this for over a year now, but because i have catless headers it blinks engine sign in my dash permanently which i may end up to tune in order to remove it.
01-09-2023 | 03:48 AM
#19
Instructor
Joined: Feb 2020
Posts: 159
Likes: 39
OP. Glad you are happier with the car, you are heading in the right direction. However you missed an opportunity by not getting the TPC adjustable rear toe links and throwing some shims on in the front to get a better alignment. Buying cup2R tires and not supporting them with a decent alignment is a bit of a waste. You said you think your skill should grow before you adjust the car further… but imagine if the car became less vague and more predictable how much quicker your confidence and skill would grow? As Tom at TPC Racing told me when I first got my GT4 2 years ago - traction is traction and more is always better. Good luck!
1- it will induce dead steering feel and response ( i suffered this in my car and removed them).
2- there has to be a better approch to increase front cambers without adding shims (not sure 100% but an Lower Control arm was an option)
at least this will lessen the steering dead spot as the shims did change my steering rotation degree as well not to mention the dead feel spot going 90"
This was my personal experience so far, reverted back to complete stock with agreesive settings on Track and normal Setting in the Street as per porsche book.
01-09-2023 | 04:45 AM
#20
Rennlist Member
Joined: Oct 2020
Posts: 2,036
Likes: 1,143
From: Santa Monica
Hi Dnimi123, I agree with you and not recommend adding front shims for several reasons:
1- it will induce dead steering feel and response ( i suffered this in my car and removed them).
2- there has to be a better approch to increase front cambers without adding shims (not sure 100% but an Lower Control arm was an option)
at least this will lessen the steering dead spot as the shims did change my steering rotation degree as well not to mention the dead feel spot going 90"
This was my personal experience so far, reverted back to complete stock with agreesive settings on Track and normal Setting in the Street as per porsche book.
1- it will induce dead steering feel and response ( i suffered this in my car and removed them).
2- there has to be a better approch to increase front cambers without adding shims (not sure 100% but an Lower Control arm was an option)
at least this will lessen the steering dead spot as the shims did change my steering rotation degree as well not to mention the dead feel spot going 90"
This was my personal experience so far, reverted back to complete stock with agreesive settings on Track and normal Setting in the Street as per porsche book.
Last edited by dnimi123; 01-09-2023 at 04:46 AM.
01-09-2023 | 07:34 AM
#21
Burning Brakes
Joined: Mar 2021
Posts: 1,065
Likes: 607
Hi Dnimi123, I agree with you and not recommend adding front shims for several reasons:
1- it will induce dead steering feel and response ( i suffered this in my car and removed them).
2- there has to be a better approch to increase front cambers without adding shims (not sure 100% but an Lower Control arm was an option)
at least this will lessen the steering dead spot as the shims did change my steering rotation degree as well not to mention the dead feel spot going 90"
This was my personal experience so far, reverted back to complete stock with agreesive settings on Track and normal Setting in the Street as per porsche book.
1- it will induce dead steering feel and response ( i suffered this in my car and removed them).
2- there has to be a better approch to increase front cambers without adding shims (not sure 100% but an Lower Control arm was an option)
at least this will lessen the steering dead spot as the shims did change my steering rotation degree as well not to mention the dead feel spot going 90"
This was my personal experience so far, reverted back to complete stock with agreesive settings on Track and normal Setting in the Street as per porsche book.