Sponsored

Upgrade Base GT Pads and lines or Buy 6 Piston

SVT-DADDY

World's heaviest S550
Joined
Apr 28, 2016
Threads
93
Messages
1,513
Reaction score
472
Location
CT
Vehicle(s)
2015 GT Convertible
Vehicle Showcase
1
OP
OP

ZanarkO

Well-Known Member
Joined
Aug 21, 2016
Threads
7
Messages
188
Reaction score
34
Location
Richmond
Vehicle(s)
2006 Evo IX, 2000 C5, 2006 Eclipse GT, 2003 Evo 8
I am in exactly the same situation- just starting HPDE in a base 2015 GT. My instructor recommended his brake specialist www.zeckhausen.com to inquire about upgrading pads for continuing HDPE in my daily driver. I talked with CJ Pony Parts in my local area and Zeckhausen by email. With no disrespect to CJ Pony Parts at all, the email reply I got from zeckhausen was excellent and thorough. I'd be glad to copy & paste the content of their reply if you wish, but I didn't want to flood the board with too much content since I'm such a newbie myself. He had to research to find pads for a non-PP, but he recommended these Porterfield R4-S.
https://www.zeckhausen.com/catalog/product_info.php?cPath=11_90_6439_6441&products_id=21196
https://www.zeckhausen.com/catalog/product_info.php?products_id=21198
I just had them installed yesterday, and I'll be tracking them in mid April at Lime Rock Park. For whatever it's worth, my first HPDE experience was a Pocono raceway with the stock pads and everything held up fine for the entire day, including withstanding the heavy braking from the NASCAR backstretch to the infield road course.
great info and post up
 

BmacIL

Enginerd
Joined
Sep 21, 2014
Threads
69
Messages
15,010
Reaction score
8,920
Location
Naperville, IL
Vehicle(s)
2015 Guard GT Base, M/T
Vehicle Showcase
1
I am in exactly the same situation- just starting HPDE in a base 2015 GT. My instructor recommended his brake specialist www.zeckhausen.com to inquire about upgrading pads for continuing HDPE in my daily driver. I talked with CJ Pony Parts in my local area and Zeckhausen by email. With no disrespect to CJ Pony Parts at all, the email reply I got from zeckhausen was excellent and thorough. I'd be glad to copy & paste the content of their reply if you wish, but I didn't want to flood the board with too much content since I'm such a newbie myself. He had to research to find pads for a non-PP, but he recommended these Porterfield R4-S.
https://www.zeckhausen.com/catalog/product_info.php?cPath=11_90_6439_6441&products_id=21196
https://www.zeckhausen.com/catalog/product_info.php?products_id=21198
I just had them installed yesterday, and I'll be tracking them in mid April at Lime Rock Park. For whatever it's worth, my first HPDE experience was a Pocono raceway with the stock pads and everything held up fine for the entire day, including withstanding the heavy braking from the NASCAR backstretch to the infield road course.
Pricey!

I have been looking at these for a similar performance pad, since my focus is just street and autocross:
http://www.cjponyparts.com/hawk-per...ance-pack-ecoboost-base-gt-2015-2017/p/BS856/
 

jdilissio

Member
Joined
Mar 24, 2017
Threads
1
Messages
17
Reaction score
13
Location
Harrisburg, Pa
Vehicle(s)
2015 Mustang GT
Below I'll post the content from David Zeckhausen as I inquired about options for my non-PP GT. It seems there aren't nearly as many options for these smaller brakes. CJ Pony Parts' rep recommended the Hawk HPS pads, but reading reviews on Tirerack gave a lot of negative reviews from track use.
I installed the Portfields yesterday and they have given no brake noise during daily driving use. My 2015 GT has one day of track use under it's belt and has just hit 30k, and when my mechanic friend bled the brake fluid as he changed the pads, he found it in great condition with no air bubbles. Hope Zeckhausen's info is helpful for anyone else in the same situation of beginning HPDE with a non-PP GT.

"There aren't many pad choices, especially in race friction or even dual-use (street & track). I've reached out to Porterfield in California to see if they'll make their R4-S high performance street compound in the front and rear shapes for your car. If they agree, then that would be the no-brainer choice as you progress from Novice to Intermediate level and continue running high performance street tires. As you progress further, we'll have to discuss other options. By then, maybe Hawk and Performance Friction will have some intermediate street/track pads available."

(subsequent followup email)
Porterfield agreed to make the R4-S dual-use pad, in addition to the R4 race pad. Hawk HPS would be a disaster. When that pad reaches its maximum operating temperature, the friction level falls off rapidly and with very little warning to the driver. It's a great street pad, but a deadly track pad. I think some folks get confused between HPS and HP PLUS, which is why you see some recommendations for it. That would be a bad mistake.
Hawk Street-Race is functionally equivalent to their DTC-30 race pads, if you look at their torque curves vs temperature. It might be an option, but the noise would probably drive you crazy. My suggestion for now is Porterfield R4-S.

No need to upgrade the brake fluid over a normal DOT4, like ATE TYP200. Just make sure it's fresh. Meaning bleed it within a week or two of your first track day. Then play it by ear, to see if you might need another bleed after a few events."
Hawk Torque Curves.jpg
 

BmacIL

Enginerd
Joined
Sep 21, 2014
Threads
69
Messages
15,010
Reaction score
8,920
Location
Naperville, IL
Vehicle(s)
2015 Guard GT Base, M/T
Vehicle Showcase
1
Below I'll post the content from David Zeckhausen as I inquired about options for my non-PP GT. It seems there aren't nearly as many options for these smaller brakes. CJ Pony Parts' rep recommended the Hawk HPS pads, but reading reviews on Tirerack gave a lot of negative reviews from track use.
I installed the Portfields yesterday and they have given no brake noise during daily driving use. My 2015 GT has one day of track use under it's belt and has just hit 30k, and when my mechanic friend bled the brake fluid as he changed the pads, he found it in great condition with no air bubbles. Hope Zeckhausen's info is helpful for anyone else in the same situation of beginning HPDE with a non-PP GT.

"There aren't many pad choices, especially in race friction or even dual-use (street & track). I've reached out to Porterfield in California to see if they'll make their R4-S high performance street compound in the front and rear shapes for your car. If they agree, then that would be the no-brainer choice as you progress from Novice to Intermediate level and continue running high performance street tires. As you progress further, we'll have to discuss other options. By then, maybe Hawk and Performance Friction will have some intermediate street/track pads available."

(subsequent followup email)
Porterfield agreed to make the R4-S dual-use pad, in addition to the R4 race pad. Hawk HPS would be a disaster. When that pad reaches its maximum operating temperature, the friction level falls off rapidly and with very little warning to the driver. It's a great street pad, but a deadly track pad. I think some folks get confused between HPS and HP PLUS, which is why you see some recommendations for it. That would be a bad mistake.
Hawk Street-Race is functionally equivalent to their DTC-30 race pads, if you look at their torque curves vs temperature. It might be an option, but the noise would probably drive you crazy. My suggestion for now is Porterfield R4-S.

No need to upgrade the brake fluid over a normal DOT4, like ATE TYP200. Just make sure it's fresh. Meaning bleed it within a week or two of your first track day. Then play it by ear, to see if you might need another bleed after a few events."
Great info, thanks! FYI the HP+ is a pretty decent dual use pad. It holds up very well to sustained hard braking on track. That said, the squealing at cold temps on the street is very pronounced.
 

Sponsored

Competition Orange

Well-Known Member
Joined
Aug 25, 2015
Threads
40
Messages
1,402
Reaction score
436
Location
Columbus, Ohio
Vehicle(s)
2017 GT350
I had the Porterfield R4S on my Golf R at mid ohio, it was well paired with stock power and a 300tw tire, but anything more than that and it wouldn't have been enough pad.
 
OP
OP

ZanarkO

Well-Known Member
Joined
Aug 21, 2016
Threads
7
Messages
188
Reaction score
34
Location
Richmond
Vehicle(s)
2006 Evo IX, 2000 C5, 2006 Eclipse GT, 2003 Evo 8
Well I just got done running an AUTOX event today, stock 4 pots did great and had no issues what so ever. I wont be upgrading to 6 pots for a very long time as I dont think its really needed. A Road course would be different but I have a feeling they wont fade. Main issue are these crappy ass factory P zero all seasons. Horrible tire.
 

BmacIL

Enginerd
Joined
Sep 21, 2014
Threads
69
Messages
15,010
Reaction score
8,920
Location
Naperville, IL
Vehicle(s)
2015 Guard GT Base, M/T
Vehicle Showcase
1
Well I just got done running an AUTOX event today, stock 4 pots did great and had no issues what so ever. I wont be upgrading to 6 pots for a very long time as I dont think its really needed. A Road course would be different but I have a feeling they wont fade. Main issue are these crappy ass factory P zero all seasons. Horrible tire.
Ugh yeah, they're garbage. The car's performance with those is subpar even for a non-PP car. Just wait till you upgrade.
 

Sponsored

jdilissio

Member
Joined
Mar 24, 2017
Threads
1
Messages
17
Reaction score
13
Location
Harrisburg, Pa
Vehicle(s)
2015 Mustang GT
Ugh yeah, they're garbage. The car's performance with those is subpar even for a non-PP car. Just wait till you upgrade.
What recommendations would you or any other replier give for a tire upgrade for tracking + daily driver usage? Anyone have any input on the Continental ExtremeContact Sport reviews on the forum? http://www.mustang6g.com/?p=10871
 

wildcatgoal

@sirboom_photography
Joined
Feb 8, 2016
Threads
76
Messages
6,589
Reaction score
2,500
Location
USA
Vehicle(s)
TBD
That Conti tire is brand new and probably doesn't have much track time yet, but the people I've spoken to at track days repeat rumblings that they are very good.

The Conti DW tire - good to train you on how your car handles and APEXes and all that and a great rain tire, but in the dry when trying to give it a push... they suck nuts. I also don't like them all that much on the street - those huge wide grooves seem to catch road imperfections and jut the car around. Arrrrg they suck.

A great track/street tire is the BFG Sport Comp-2. Numerous race schools use them, I see them on Advanced HPDE driver cars ALL THE TIME. Everyone recommends them.
 
OP
OP

ZanarkO

Well-Known Member
Joined
Aug 21, 2016
Threads
7
Messages
188
Reaction score
34
Location
Richmond
Vehicle(s)
2006 Evo IX, 2000 C5, 2006 Eclipse GT, 2003 Evo 8
I ran sport comp 2s on my evo9, it's a fantastic tire and it lasts a pretty long time. Imma cheap out though and run the htrz IIIs on the mustang.
 

Norm Peterson

corner barstool sitter
Joined
Jul 22, 2013
Threads
11
Messages
9,011
Reaction score
4,720
Location
On a corner barstool not too far from I-95
First Name
Norm
Vehicle(s)
'08 GT #85, '19 WRX
Great info, thanks! FYI the HP+ is a pretty decent dual use pad. It holds up very well to sustained hard braking on track. That said, the squealing at cold temps on the street is very pronounced.
Squeaking and dust aside, the HP+ is still marginal at best as a street pad due to rapid rotor wear in street settings. Been there. Even XP12's don't beat the rotors up the way HP+'s do, not even close.


Norm
 

Norm Peterson

corner barstool sitter
Joined
Jul 22, 2013
Threads
11
Messages
9,011
Reaction score
4,720
Location
On a corner barstool not too far from I-95
First Name
Norm
Vehicle(s)
'08 GT #85, '19 WRX
Well I just got done running an AUTOX event today, stock 4 pots did great and had no issues what so ever. I wont be upgrading to 6 pots for a very long time as I dont think its really needed. A Road course would be different but I have a feeling they wont fade. Main issue are these crappy ass factory P zero all seasons. Horrible tire.
Don't even try to predict road course fade resistance based on either street or autocross driving.

Except for chilly track days - I'm talking low 40°'s/high 30°'s F here - Carbotech pads up to XP12 (G-loc up to R12) are a good match for wider than stock MPSS tires. On the cold days, the pads can and will warm up faster than the tires.


Norm
Sponsored

 
 




Top