and you thought IMS was scary
i think it is a 3 litre air cooled personally ..
01-25-2011, 01:27 PM
#18
Drifting
You air cooled guys like to spread the misnomer of 'air cooled' while 12 quarts of oil spew out the back end for me to clean up on the track. Shouldn't the design of this engine be considered 'oil cooled' if we're honest? 
01-25-2011, 01:40 PM
#19
Burning Brakes
Join Date: Jul 2009
Location: Markham, Ontario, Canada
Posts: 883
Likes: 0
Received 0 Likes
on
0 Posts
Only Rally Guy's 964 spews 12 quarts of oil...the rest of us only spew about 6 quarts..
01-25-2011, 01:44 PM
#20
Drifting
Join Date: Sep 2006
Location: Toronto, C eh! N eh! D eh!
Posts: 2,281
Likes: 0
Received 0 Likes
on
0 Posts
01-25-2011, 01:49 PM
#21
Drifting
Join Date: Sep 2006
Location: Toronto, C eh! N eh! D eh!
Posts: 2,281
Likes: 0
Received 0 Likes
on
0 Posts
During a race, I once had a connecting rod go through the block at the entrance of turn 2 at Mosport. Oil caught fire all over the engine bay, very little steering (tires covered in oil and coolant), very little brakes, no vision initially, and a tonne of heat.... put the car on the grass, and coasted down the hill right to the marshalls waiting with fire bottles ready for action. They where awesome, got me out safe, and saved the rest of the car.... it really pays off to know where the marshalls are, they save more then your car!
01-25-2011, 01:57 PM
#22
Team Owner
yup ..oilcoolman is my hotmail address.....
01-25-2011, 03:29 PM
#24
Drifting
Good to hear you kept it out of those tires down there - good job.
01-25-2011, 06:17 PM
#25
Pocket Sand
Rennlist Member
Rennlist Member
Join Date: Jul 2004
Location: Ask Rusty Shackleford.
Posts: 7,649
Likes: 0
Received 0 Likes
on
0 Posts
01-25-2011, 06:25 PM
#26
Pocket Sand
Rennlist Member
Rennlist Member
Join Date: Jul 2004
Location: Ask Rusty Shackleford.
Posts: 7,649
Likes: 0
Received 0 Likes
on
0 Posts
Yup, though if it let go on the street and following the speed limit, you'll probably not have an issue unless you taking a on ramp and highway speeds.
Coolant hitting a rear tire and it's all over. Coolant is like hitting black ice and even with TCS PSM and everything can't help.
Running water wetter is an option though you may be doing more damage to the engine then you think. It doesn't cool the engine as well and you'll be running the engine at higher temperatures which will decrease engine life.
That may be fine for those that don't keep cars but the next guy will pay for it.
Does any one know if they are gluing in the fittings on the 2009+ 9A1 engine based models?
I'm thinking the most reliable Porsche engine, may be the non DFI 9A1 engine out of the 2009 Cayman (non S).
Coolant hitting a rear tire and it's all over. Coolant is like hitting black ice and even with TCS PSM and everything can't help.
Running water wetter is an option though you may be doing more damage to the engine then you think. It doesn't cool the engine as well and you'll be running the engine at higher temperatures which will decrease engine life.
That may be fine for those that don't keep cars but the next guy will pay for it.
Does any one know if they are gluing in the fittings on the 2009+ 9A1 engine based models?
I'm thinking the most reliable Porsche engine, may be the non DFI 9A1 engine out of the 2009 Cayman (non S).
Greg,
The car cited in the 1st post was a 996TT and Farzaan's GT3 has a significant amount of tracktime on it (far more than average). Eventually something will let go on a tracked car, it's just a matter of when. I don't think that's enough to say that any one series of engines are unreliable.
As these cars get older and more and more high stress life is applied to them, we will uncover more and more issues that need remedying, this press fitting for instance. Your C4S has seen a metric f**kton of track days as well and while i'm sure you're spot on with your maintenance schedules, a worn plastic line bracket could finally let go, a hose tear, an ______ happen, etc....
What's the solution proposed to the fitting problem? Just put a saftey loop on it?
01-25-2011, 06:47 PM
#27
Team Owner
Omar this seams to bea real problem as Greg points out .. Even exellence had an article on it showing all the failure points and remedied fixes .. sure you will get more wear and tear at a track .. all the more reason to address the known weak areas of the car .. these are actually robust cars with robust engines . i just don't know how robsust they will be if they are running at a track or on the highway and dump coolant .. even a " minor" leak . will casue coolant to pour out and the engine to over heat . overheating an aluminum engine could be bad news even if you do it once. Certainly worth checking the areas Greg points out for leaks..
01-25-2011, 06:57 PM
#28
Rennlist Member
Join Date: Aug 2005
Location: In an endless Zoom meeting
Posts: 5,195
Received 101 Likes
on
57 Posts
Of course I was on the receiving end once again in September behind...you guessed it, a 996 GT3!
01-25-2011, 09:17 PM
#30
Nordschleife Master
Thread Starter
yes and they rebuild their engines after so many race hours and it's mandated that they run water for safety not because it runs cooler, which i don't buy into "cooler" at all.