Z51 questions
Thread Starter
Instructor
Joined: Aug 2019
Posts: 127
Likes: 66
From: SE MASS, FREEDOM NH
Z51 questions
I saw that the Z51 package comes with a bag of Tupperware in the boot. SA said track use only. Really? Does it reduce the clearance that much? And how hard is it to put on and take off? I have a lift.
Drifting
Joined: Mar 2020
Posts: 1,568
Likes: 1,024
From: 31 hours East of Peoria, AZ
You can put in the upper half permanently and never worry about ground clearance as it does not change that way.
Race Director
Joined: Aug 2016
Posts: 12,715
Likes: 10,143
From: Garden Valley CA
The OP didn't say how many pieces were in the bag. There are 8 pieces total (2 front ducts, 2 rear hub pieces, and 4 halves that mount to the rear lower A arms) and some fasteners. Everything but the 4 halves that mount to the lower A arms are supposed to be installed during PDI but some dealers can't follow instructions and install everything or nothing.
If the rear A arm ducts are left on during street use they can direct debris into the brakes. There has been at least one report of a brake fire attributed to this. Many track rats only remove the lower half of the A arm ducts during street use. The lower halves are easy to remove and reinstall once you raise the car enough to get at them.
If the rear A arm ducts are left on during street use they can direct debris into the brakes. There has been at least one report of a brake fire attributed to this. Many track rats only remove the lower half of the A arm ducts during street use. The lower halves are easy to remove and reinstall once you raise the car enough to get at them.
Thread Starter
Instructor
Joined: Aug 2019
Posts: 127
Likes: 66
From: SE MASS, FREEDOM NH
Thanks everybody. Hope to pick it up next week in Nashua. I will ping MacMulkin and ask if they have that done. Once broken it it will see track time.
So this ductwork can cause a fire from street use? This is just GM trying to keep up with Porsche. Not that many years ago that Porsche pioneered the self igniting engine in the 2014 GT3s, shortly followed by the self destructing engines a few years later.
Its all good, thanks.
Scruffy
So this ductwork can cause a fire from street use? This is just GM trying to keep up with Porsche. Not that many years ago that Porsche pioneered the self igniting engine in the 2014 GT3s, shortly followed by the self destructing engines a few years later.
Its all good, thanks.
Scruffy
Burning Brakes
Joined: May 2023
Posts: 1,004
Likes: 357
From: Ontario
There are some youtube vids out there on how to do it. Dealer, if they read/follow the PDI Checklist, will know what to install (fronts) and not to install (rears).
Fronts are 4 X 10mm bolts and one pushpin (per side), On a lift, would be easy.
Fronts are 4 X 10mm bolts and one pushpin (per side), On a lift, would be easy.
