1999 Dealer brochure revelations
02-05-2010, 09:56 PM
#1
Advanced
Thread Starter
Join Date: Dec 2009
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
1999 Dealer brochure revelations
Three things that make me cringe I learned from my 1999 Dealer brochure that just came in. And I quote from page 15
"Each engine is tested rigorously---on the bench for up to half an hour, with a full minute nonstop at redline!!!!!!!!!
Then a rolling road test. And ultimately , the final exam: 90 minutes on the Autobahn, where every 911 off the assembly line must satisfy perhaps the worlds most demanding , and some say most fortunate, driver- a Porsche test driver."
"Each new 911 must slow from 90% of its top speed to 62mph 25 times. Consecutively. Without suffering significant brake fade."
1. So there are two schools of thought on breaking in a motor, apparently Porsche takes the rough road.
2. Some yahoo was given the keys to my car for 90 minutes at unlimited speeds when it had no miles and the crap was beaten out of it and the factory sanctions it.
3. Our cars are place under load to 156.6mph 25 times in a row when they are brand new and the brake pads are not broken in any way I have ever read about. There would be no reason to try and break in your new Porsche when you received it, because the darn thing is beat all to heck anyway.
This could explain a lot with these engines, would be a neat graph to see trans bearings and IMS failures vs test drivers name.
tntempest is online now Report Post Edit/Delete Message
"Each engine is tested rigorously---on the bench for up to half an hour, with a full minute nonstop at redline!!!!!!!!!
Then a rolling road test. And ultimately , the final exam: 90 minutes on the Autobahn, where every 911 off the assembly line must satisfy perhaps the worlds most demanding , and some say most fortunate, driver- a Porsche test driver."
"Each new 911 must slow from 90% of its top speed to 62mph 25 times. Consecutively. Without suffering significant brake fade."
1. So there are two schools of thought on breaking in a motor, apparently Porsche takes the rough road.
2. Some yahoo was given the keys to my car for 90 minutes at unlimited speeds when it had no miles and the crap was beaten out of it and the factory sanctions it.
3. Our cars are place under load to 156.6mph 25 times in a row when they are brand new and the brake pads are not broken in any way I have ever read about. There would be no reason to try and break in your new Porsche when you received it, because the darn thing is beat all to heck anyway.
This could explain a lot with these engines, would be a neat graph to see trans bearings and IMS failures vs test drivers name.
tntempest is online now Report Post Edit/Delete Message
02-05-2010, 10:29 PM
#2
Addict
Rennlist Member
Rennlist Member
There are indeed different schools of thought on the topic. I agree with Porsche's technique, and I've rebuilt motors that after thousands of track and tens of thousands of road miles are still at factory spec compression and leakdown-or above... They're meant to be driven, and going to redline or staying under load is not outside the design parameters IMO, nor Porsche's, obviously.
02-05-2010, 10:46 PM
#3
Rennlist Member
I wonder if the remans they are putting in go through this same great test?
Three things that make me cringe I learned from my 1999 Dealer brochure that just came in. And I quote from page 15
"Each engine is tested rigorously---on the bench for up to half an hour, with a full minute nonstop at redline!!!!!!!!!
Then a rolling road test. And ultimately , the final exam: 90 minutes on the Autobahn, where every 911 off the assembly line must satisfy perhaps the worlds most demanding , and some say most fortunate, driver- a Porsche test driver."
"Each new 911 must slow from 90% of its top speed to 62mph 25 times. Consecutively. Without suffering significant brake fade."
1. So there are two schools of thought on breaking in a motor, apparently Porsche takes the rough road.
2. Some yahoo was given the keys to my car for 90 minutes at unlimited speeds when it had no miles and the crap was beaten out of it and the factory sanctions it.
3. Our cars are place under load to 156.6mph 25 times in a row when they are brand new and the brake pads are not broken in any way I have ever read about. There would be no reason to try and break in your new Porsche when you received it, because the darn thing is beat all to heck anyway.
This could explain a lot with these engines, would be a neat graph to see trans bearings and IMS failures vs test drivers name.
tntempest is online now Report Post Edit/Delete Message
"Each engine is tested rigorously---on the bench for up to half an hour, with a full minute nonstop at redline!!!!!!!!!
Then a rolling road test. And ultimately , the final exam: 90 minutes on the Autobahn, where every 911 off the assembly line must satisfy perhaps the worlds most demanding , and some say most fortunate, driver- a Porsche test driver."
"Each new 911 must slow from 90% of its top speed to 62mph 25 times. Consecutively. Without suffering significant brake fade."
1. So there are two schools of thought on breaking in a motor, apparently Porsche takes the rough road.
2. Some yahoo was given the keys to my car for 90 minutes at unlimited speeds when it had no miles and the crap was beaten out of it and the factory sanctions it.
3. Our cars are place under load to 156.6mph 25 times in a row when they are brand new and the brake pads are not broken in any way I have ever read about. There would be no reason to try and break in your new Porsche when you received it, because the darn thing is beat all to heck anyway.
This could explain a lot with these engines, would be a neat graph to see trans bearings and IMS failures vs test drivers name.
tntempest is online now Report Post Edit/Delete Message
Trending Topics
02-07-2010, 02:49 PM
#8
