Track Nanny

Tom · #51

TonyL128 wrote: Sat Jul 23, 2022 7:45 pm Hi Tom,

Some questions regarding the Track Nanny:

1. Do you know if the Cayman GTS 4.0 will use same harness as the 718 GT4?

2. Does the Track Nanny work with the 992 Turbo S with PSE? Our car will blow past 93db with PSE button off at Laguna Seca. Not sure whether PSE is turning itself back on while accelerating between turn 5 & 6.

3. Would we be able to use 1 unit between the two cars if we bought extra harnesses?

Thanks, Tony

Hi Tony -- welcome to Carpokes! I'm 99.9% sure the Cayman 4.0 uses the same harness as the 718 GT4, but don't think I've actually sold one to a Cayman GTS 4.0 owner, unless I'm forgetting someone. They have been installed on a Spyder 4.0 using the GT4 harness.

Right now, I have no solution for the 992 Turbo S. I have that car myself, and it uses a more sophisticated system with feedback to the ECU's -- so over-riding the valves without simulating the feedback risks a CEL light on the dash. There is some effort afoot to solve that issue, but it will necessarily involve additional or different hardware.

Yes, one Track Nanny can be used on two cars as long as you have the right harness in each car. The Track Nanny has a jumper inside you'd need to move for a 997, but everything that it works on after the 997 (i.e., 981, 991, 718) use the same internal settings, so can be moved freely between those cars. Hope that helps, but let me know if you have more questions. Thanks!

thejackamo · #52

I purchased Casey's old Track Nanny and had it sent to Tom to get re-wired. I was going to install it prior to a track day out at Lime Rock; I recently installed OAPs on my 718 GT4 and was a bit worried I might not pass sound. Unfortunately I didn't have time to get it into the car and just crossed my fingers that I wouldn't get flagged and need to do an install in the pits. Luckily it wasn't needed, so anyone that's running a GT4 with GPFs deleted with a stock exhaust, you're probably safe at Lime Rock!

However, I did run into another driver with a GTS3 series car who was running the nanny for the majority of the day. During his last session he was curious what he'd be putting out sound-wise unmuffled & put it into "Loud" for a few laps; he ended up getting black flagged and told he was around 102dB! So, a) the nanny definitely works, and b) really good confirmation that Tom's GPS location at Lime Rock is right on the money.

07turbeaux · #53

Has anyone installed one on a 997 Turbo? No matter where I drive with the flaps open the car sounds like a Corvair with straight pipes. At higher RPMs with flaps closed I think the car sounds pretty good tho no luft Gekuhlt. Does the Nanny do anything more than just open the flaps? If I missed the answer its cause I am really tired from working for hours in 95F.
This is my first H2O car and side by side I will take the 993 auspuff sound over the 997 Turbo anytime.
Thanks for bearing with me. I am hoping this place is more friendly then Rennlist and heaven forbid Porsche Forum. I have owned 10 Porsches and have many track hours but often have a dumb questioin or two.

Thanks

07 Turbeaux

Tom · #54

07turbeaux wrote: Thu Sep 08, 2022 10:34 pm Has anyone installed one on a 997 Turbo? No matter where I drive with the flaps open the car sounds like a Corvair with straight pipes. At higher RPMs with flaps closed I think the car sounds pretty good tho no luft Gekuhlt. Does the Nanny do anything more than just open the flaps? If I missed the answer its cause I am really tired from working for hours in 95F.
This is my first H2O car and side by side I will take the 993 auspuff sound over the 997 Turbo anytime.
Thanks for bearing with me. I am hoping this place is more friendly then Rennlist and heaven forbid Porsche Forum. I have owned 10 Porsches and have many track hours but often have a dumb questioin or two.

Thanks

07 Turbeaux

Sorry I missed this. Early on, we installed a Track Nanny on a 997GT3. The 997 cars control the PSE valve with a switched negative signal, unlike the all the cars after it, but there is a jumper inside to let it work with the 997. The Track Nanny simply closes the PSE flaps when inside its GPS zone, but there is also a knob on the box to force the flaps open all the time. On request, I can also add a "close the flaps" setting on the knob. I don't include that by default due to urban legends about cats overheating and melting when people clamp their PSE flaps shut on the track to stay under the sound limits. I've never actually had a Track Nanny on a 997 Turbo, but would be willing to bet it's the same as the other 997-based cars and, if you are local to the Bay Area, I'd be happy to test your signals to confirm that.

As for this place being more friendly than many of the other Porsche forums, you have my solemn word on that. That was literally the very reason we started Carpokes.

07turbeaux · #55

thanks for the REPLY.
I no longer track my car as I live in Central OR and our track is ORP ((Oregon raceway Park) I have always thought of it as a mini Laguna Seca. Ergo at my advanced age I can not memorize the many uphill blind turns so it was no fun for me or the Miatas that were crawling up my butt. (I got flagged)
So since I can no longer track my car I really would not benefit from the track nanny.
Tom, I am a SF native and two shops set up my 911s when I lived in Woodside. Roger Krause Racing in Fremont and RMG in Sunnyvale. I also lived on, according to Cycle World the second best Motorcylcle run in the world. So every evening commuting from the Silly Valley my 911 cars all got a good work out. It was no surprise that I only got 5k miles on the Yokahoma A00R tires, the stickiest available at the time.

07turbeaux · #56

BTW Tom, congrats on the product. Pretty sexy the way it is tied in with GPS

kfarmgz · #57

Following a Rennlist post led me here. Wondering if this will work for 3 separate GPS locations in 1 track?

Tom · #58

kfarmgz wrote: Tue Oct 04, 2022 11:20 am Following a Rennlist post led me here. Wondering if this will work for 3 separate GPS locations in 1 track?

The standard firmware allows me to pre-program 2 locations into the star setting. I can do a 3-location unit on special request (for a small fee), but at some point my concern would be the flaps staying shut for so much of the track that it wouldn't be worth it? What track is it?

and, p.s., Welcome to Carpokes!

kfarmgz · #59

Thanks Tom for the welcome,

Track is in the great white north. Rocky Mountain Motorsports 45 min north of Calgary, Alberta.
https://rockymotorsports.com/

I blew over in my Bone Stock 991.1 GT3RS, i switched over to the soul resonated tips with angles down and it is still blowing 98db, Track Limit is 95db. There are 3 locations for the sound check, I have only found 2 myself so far, however since its a membership track and some of my friends are members, would not be hard to find the last one.

Can I ask, each time the GPS Valves closes, how far outside of the GPS zone would it need to be before it opens again? Or if they are time based, how long do they stay shut after the GPS signal triggers it to close?

You bring up a good point on the flaps staying shut for so much of the track, I wonder if there is any risk damaging Engine or Muffler?

larry · #60

I can tell you that valves closed can burn out your cats. Not will, can.