If you dont drive your car for 3-5 days
#31
No real obsession over the blender mezger, just an actual real world speculation that the noises produced by the oil starved parts, aren't benefitting them one bit. The wear may be minuscule, but the noise isn't normal from most machines built in the last 70 years or so.
#32
So, you picked up an LS1 w/o piston slap on cold start?
Seriously, if there are no issues with the small amount of noise, why are you stressing? If you want a luxury car that's always whisper quiet, buy a Benz. And it is really difficult to make out what is rattling on that 917 start vid - it is so loud through the open headers that the cam's mic can NOT cope.
And, btw, the LS1 never won Le Mans....
Seriously, if there are no issues with the small amount of noise, why are you stressing? If you want a luxury car that's always whisper quiet, buy a Benz. And it is really difficult to make out what is rattling on that 917 start vid - it is so loud through the open headers that the cam's mic can NOT cope.
And, btw, the LS1 never won Le Mans....
#33
Sorry - I should have been more precise. No LS engine ever won LeMans outright. And I did not mean this as a put down, it was just a simple poke in the ribs. And I am not going to get into a debate over better design (define better - just kidding).
None of my Porsches, air or water cooled, make sounds that worry me on start up. If it bothers you that much, get something else.
And, just for the record, I don't own any LS powered vehicles as I moved to Europe prior to its introduction, but I love all things Chevy racing. I am not bashing.
None of my Porsches, air or water cooled, make sounds that worry me on start up. If it bothers you that much, get something else.
And, just for the record, I don't own any LS powered vehicles as I moved to Europe prior to its introduction, but I love all things Chevy racing. I am not bashing.
Last edited by stevemfr; 08-21-2016 at 08:47 AM.
#34
Lol. More dead end engine noise threads. Some people should just go back to garage building chevy engines and corvettes.
Your metzger engined 911 is not a corvette. They all makes noises yet run great. For well over 100,000 miles with proper oil changes and reasonable mods. If you are the kind of person who obsesses over noises to no end and fears having to rebuild the engine, you should buy a corvette. Or another muscle car. But you will not find a single brand of american car that implements race engineered and proven parts on production cars to the same extent that Porsche does. And if you think those LS motor race teams are running the same engine every race without failures you are high. The engines they run are not the same engines as your corvette or muscle car has. And they have problems. Talk to the people who track their cars, not the stoplight or 1/4 mile racers. The tracked cars prove themselves time and time again to be reliable. I read time and time again about people with LS motor issues at the track. Use good oil. Change it every 3000 miles. Drive it and don't worry. You won't save any money worrying.
Your metzger engined 911 is not a corvette. They all makes noises yet run great. For well over 100,000 miles with proper oil changes and reasonable mods. If you are the kind of person who obsesses over noises to no end and fears having to rebuild the engine, you should buy a corvette. Or another muscle car. But you will not find a single brand of american car that implements race engineered and proven parts on production cars to the same extent that Porsche does. And if you think those LS motor race teams are running the same engine every race without failures you are high. The engines they run are not the same engines as your corvette or muscle car has. And they have problems. Talk to the people who track their cars, not the stoplight or 1/4 mile racers. The tracked cars prove themselves time and time again to be reliable. I read time and time again about people with LS motor issues at the track. Use good oil. Change it every 3000 miles. Drive it and don't worry. You won't save any money worrying.
#35
my car w 135k+ miles is as well maintained as any. the only issues with its condition might be cosmetic.
i can say with 100% degree of certainty that if ANYone here heard the oil starved SCREECH that occurs during a cold start in 100+ degree outside ambient temps would reach the same conclusion i have in that while it may well be "normal" it also ain't "right" and is disconcerting as f**k. this while running my summer oil of castrol edge 5/50 which helps lessen this phenomenon dramatically.
still,..i'm not gonna pull a fuse to start the damn car.
i can say with 100% degree of certainty that if ANYone here heard the oil starved SCREECH that occurs during a cold start in 100+ degree outside ambient temps would reach the same conclusion i have in that while it may well be "normal" it also ain't "right" and is disconcerting as f**k. this while running my summer oil of castrol edge 5/50 which helps lessen this phenomenon dramatically.
still,..i'm not gonna pull a fuse to start the damn car.
#36
my car w 135k+ miles is as well maintained as any. the only issues with its condition might be cosmetic.
i can say with 100% degree of certainty that if ANYone here heard the oil starved SCREECH that occurs during a cold start in 100+ degree outside ambient temps would reach the same conclusion i have in that while it may well be "normal" it also ain't "right" and is disconcerting as f**k. this while running my summer oil of castrol edge 5/50 which helps lessen this phenomenon dramatically.
still,..i'm not gonna pull a fuse to start the damn car.
i can say with 100% degree of certainty that if ANYone here heard the oil starved SCREECH that occurs during a cold start in 100+ degree outside ambient temps would reach the same conclusion i have in that while it may well be "normal" it also ain't "right" and is disconcerting as f**k. this while running my summer oil of castrol edge 5/50 which helps lessen this phenomenon dramatically.
still,..i'm not gonna pull a fuse to start the damn car.
Just thinking out loud.
#37
Originally Posted by VAGscum
Lol. More dead end engine noise threads. Some people should just go back to garage building chevy engines and corvettes.
Your metzger engined 911 is not a corvette. They all makes noises yet run great. For well over 100,000 miles with proper oil changes and reasonable mods. If you are the kind of person who obsesses over noises to no end and fears having to rebuild the engine, you should buy a corvette. Or another muscle car. But you will not find a single brand of american car that implements race engineered and proven parts on production cars to the same extent that Porsche does. And if you think those LS motor race teams are running the same engine every race without failures you are high. The engines they run are not the same engines as your corvette or muscle car has. And they have problems. Talk to the people who track their cars, not the stoplight or 1/4 mile racers. The tracked cars prove themselves time and time again to be reliable. I read time and time again about people with LS motor issues at the track. Use good oil. Change it every 3000 miles. Drive it and don't worry. You won't save any money worrying.
Your metzger engined 911 is not a corvette. They all makes noises yet run great. For well over 100,000 miles with proper oil changes and reasonable mods. If you are the kind of person who obsesses over noises to no end and fears having to rebuild the engine, you should buy a corvette. Or another muscle car. But you will not find a single brand of american car that implements race engineered and proven parts on production cars to the same extent that Porsche does. And if you think those LS motor race teams are running the same engine every race without failures you are high. The engines they run are not the same engines as your corvette or muscle car has. And they have problems. Talk to the people who track their cars, not the stoplight or 1/4 mile racers. The tracked cars prove themselves time and time again to be reliable. I read time and time again about people with LS motor issues at the track. Use good oil. Change it every 3000 miles. Drive it and don't worry. You won't save any money worrying.
#38
Originally Posted by z06801
Your right, they make them run less displacement and I'll guarantee you that rebuild intervals are not any longer on the Porsche RSR's then what Corvette racing does, if anything the Corvettes go longer due to lower revs. The LS motors share just as much with what's raced as the factory RSRs with what sold at the dealership. That said I love the motor in the turbo, mine has a modded 143k on the clock and still pulls like a freight train. When I change the oil, Analysis shows very low metal and the filter is always clear of any metal bits. I can see though why the sound at start would concern owners.
#39
Originally Posted by VAGscum
The RSR are not the only race platform. The 997 and 996 cups share a pretty high number of production parts. Rebuild intervals are easy. You can plan that. It is the unscheduled explosive teardowns that happen when the LS motors become oil starved or have oil pump failures that turn the track into a scattered parts bin. And they happen more often than many of the stoplight racing LS motorheads know or care to admit. The RSR is significantly more different from the Cup than the CUP is from the GT production street cars.
#40
Originally Posted by z06801
Easy? Every 50 hours and a 30k trip to PORSCHE motor sports, cups are very expensive to run. So which parts are the exact same on the cup motors as ours? Both LS3s in grand sports and LS7s in the Z06 had dry sumps and don't oil starve. My LS6 had 110k on the clock with a lot of time trials hours on it, pulled it out running great, very durable motor.
Last edited by VAGscum; 09-01-2016 at 09:00 PM.
#41
Originally Posted by VAGscum
Easy, yes. Cheap, no. And many club racers go beyond overhaul intervals without failures. Which is the same metric LS guys seem to go by. But, you should probably go back to the Z06. After all they are bullet proof and cheap to race. As for for the parts comparisons do your own homework. I am not going to put out any more effort to sell you a car you have already made your mind about.
My only point is the LS motors have a place in motor sports. Hmmm..... I wonder what these high down force PTC cars run in Tudor
#42
Originally Posted by z06801
Well everything is easy if there is no regard for cost. I don't have to go back because I have both. I love my turbo but club racing W2W with the z06 makes more sense for me at this point.
My only point is the LS motors have a place in motor sports. Hmmm..... I wonder what these high down force PTC cars run in Tudor Attachment 458052
My only point is the LS motors have a place in motor sports. Hmmm..... I wonder what these high down force PTC cars run in Tudor Attachment 458052
Last edited by VAGscum; 09-01-2016 at 10:36 PM.
#43
Nobody said they have no place in motorsports. That argument has not happened. Just saying drive the ****ing car. If you are so baller to own a vette and 911 turbo then a little noise at idle shouldn't be a concern. You can blow the engine if that is your concern and bolt in an LS motor and blast about it on the ****ing corvette forum. But for ****s sake read the endless threads here about noises that mean and lead to nothing. Then decide if you are going to shotgun $20k for a ****ing idle noise before you decide to litter this forum of more of the same ****.
#44
I recently have notice the same situation on my 997T. I don't like/appreciate the sound either. It never sounds great when you hear metal against metal. This all stared once i have consistently, not drove my car for more than 1 week.
Obviously, this may be one reason that the oil pressure remains so high during casual driving ect. Porsche may have built this car as a daily driver.
Does anyone know if GT3's have this same issue?
Z06801, I look forward to seeing you soon at the track. I believe your attending the PCA event in Utah next month.? I would love some insight on some of the turns at this track. I'll buy the beers!
Attended last year and had a blast!
Obviously, this may be one reason that the oil pressure remains so high during casual driving ect. Porsche may have built this car as a daily driver.
Does anyone know if GT3's have this same issue?
Z06801, I look forward to seeing you soon at the track. I believe your attending the PCA event in Utah next month.? I would love some insight on some of the turns at this track. I'll buy the beers!
Attended last year and had a blast!