[Trak Ratt]

Wow Ryan you still da man!!! Long way from wheeling your 996 cab in DEs boy-o! BTW, grid gurl pics???

Originally Posted by vranko

https://www.facebook.com/9magazine

Wow. Vasteve's face is intimidating

His wife would disagree

Originally Posted by vranko

... I'm in the process of checking with Napleton Porsche about the issue. Body Motion has a proprietary fix that they do for Caymans. Probably applies to Gen I 997s also...
John

Stat a new thread when you fnd out. Might make a good DVor article too

[Chakka]

Congrats Ryan! Great write-up, sorry for the issue's, but glad you ended on such a high note!

[Hunter]

Well done Ryan, congratulations.

[jerome951]

Congrats Ryan,

The other East-coast H racers should be afraid.. Very afraid.....

[FrankyV]

Originally Posted by jerome951

Congrats Ryan,

The other East-coast H racers should be afraid.. Very afraid.....

I called it, I knew this was going to be ugly for them.

[ausgeflippt951]

I'm blown away at this Ice Pedal thing. Caymans/997s have been around for a long time now...

How is this acceptable? You should bill Porsche for your entrance fees + the cost of the new brake parts you overnighted. It's their fault for the crap design.

[forklift]

Originally Posted by ausgeflippt951

I'm blown away at this Ice Pedal thing. Caymans/997s have been around for a long time now...

How is this acceptable? You should bill Porsche for your entrance fees + the cost of the new brake parts you overnighted. It's their fault for the crap design.

LOL, I'd like to see the letter requesting that....and their response.

[John Clay]

Ice pedal isn't just Porsche. FR-S has the issue as well.

[Ryan]

Originally Posted by vranko

Welcome to the Ice Pedal Club (Ice Pedal thread link). Sorry to hear you've joined. Intersport was checking out my ice pedal issues a few weeks ago. Robert M (PCA Potomac Instructor) was having the same issues with his Koni challenge car this year. He disabled the ABS. I'm in the process of checking with Napleton Porsche about the issue. Body Motion has a proprietary fix that they do for Caymans. Probably applies to Gen I 997s also.

Thanks for the detailed write-up and contrats on the great finish.

John

Originally Posted by ausgeflippt951

I'm blown away at this Ice Pedal thing. Caymans/997s have been around for a long time now...

How is this acceptable? You should bill Porsche for your entrance fees + the cost of the new brake parts you overnighted. It's their fault for the crap design.

Ice pedal is known. Happens in BMWs also. The key is trying to program out, or minimise the inputs to the PSM/ABS to prevent it, as you can't program the ABS. Grand Am petitioned to allow ABS change to motorsport ABS (both in BMW and Porsche) because of all the wrecks caused by it in '05. With the incorrect master cylinder, it was going to ABS every corner, and causing Icemode almost every time. Once that was changed it reduced it. Then the programming/bias/yaw sensor helped a bit. We'll keep working on it until it get down to street car levels. Over last 6 years tracking street Gt3s it only happened to me about 4 times total. When you change suspension, tires, pads, calipers it has huge impact on the ABS/PSM system. Porsche designed abs around these factors, so no chance of "contacting" Porsche and complaining. Unfortunately it's going to be a lot of trial and error trying to get thru this. Thew Bodymotion proprietary fix isn't really proprietary, and doesn't completely fix it. They put an on/off switch on the yaw sensor. We actually just disconnected it. BodyMotion was actually the team which lent us their PIWIS at Sebring.

Originally Posted by 87turbolook911

Was great to see you Ryan. I could tell you were bummed and was focusing on finding a solution.

Here's a pic I snapped of you.

Thanks!

[ausgeflippt951]

Originally Posted by John Clay

Ice pedal isn't just Porsche. FR-S has the issue as well.

Originally Posted by Ryan

Ice pedal is known. Happens in BMWs also. The key is trying to program out, or minimise the inputs to the PSM/ABS to prevent it, as you can't program the ABS. Grand Am petitioned to allow ABS change to motorpsort ABS (both in BMW and Porsche) because of all the wrecks caused by it in '05. With the incorrect master cylinder, it was going to ABS every corner, and causing Icemode almost every time. Once that was changed it reduced it. Then the programming/bias/yaw sensor helped a bit. We'll keep working on it until it get down to street car levels. Over last 6 years tracking street Gt3s it only happened to me about 4 times total. When you change suspension, tires, pads, calipers it has huge impact on the ABS/PSM system. Porsche designed abs around these factors, so no chance of "contacting" Porsche and complaining. Unfortunately it's going to be a lot of trial and error trying to get thru this. Thew Bodymotion proprietary fix isn't really proprietary, and doesn't completely fix it. They put an on/off switch on the yaw sensor. We actually just disconnected it. BodyMotion was actually the team which lent us their PIWIS at Sebring.

That's great info -- I didn't know that.

Poor design when you're dealing with a street car intended for the track. It sounds like what you're saying is that it's an extremely prevalent issue (esp. with the wrong MC) on a bone-stock car, but by upgrading most of the rest of the componentry you can minimize it.

I can understand it for a car not intended for the track. Seems very odd that BMW, Porsche, and now Scion/Subie would neglect such a glaring issue like that.