Crusing engine RPM -
Racer
Joined: Jun 2013
Posts: 438
Likes: 7
From: New York
You hit the nail though regarding sound. I've got an aftermarket exhaust, and the sound is intoxicating above 3k, but it does have some drone in the 2's. So I've just kept it out of that range as a force of habit. But this thread has caused me to play around a bit and now I find myself gently cruising in 6th in the 60MPH range. The drone isn't oppressive as long as I don't ask too much of the car, and when I do, I drop a gear or three.
Maybe I'll even get another few MPGs.
-V
Burning Brakes
Joined: Mar 2002
Posts: 1,093
Likes: 1
From: London UK
Anything below 2k rpms in our cars is asking for trouble. Sure it's easy to do and for some strange reason it feels perfectly ok to sit comfortably at 2k because of the huge torque on tap but this cars are meant to be driven above 2k in any gear especially 3rd onwards. If you lug your car you will prematurely screw your front diff, the cardan-shaft and the gearbox especially if the car is flashed and has even higher torque values lower down. I mentally retrained myself to keep my revs above 3k. Of course I then comfortably take it to onwards to the red line :-). Ps. If any of you recall I had my cardan-shaft and front diff replaced a while ago and complained to Porsche immediately about the rattling noise at low revs. They said that this is normal but I should avoid driving conditions whereby I can hear the noise. Ha ha ha. That answered my question - read; engineering weak point! If you love your transmission parts keep your rpms @ 3k and above for most of your driving.
RL Community Team
Rennlist Member
Rennlist Member
Joined: Sep 2001
Posts: 12,283
Likes: 819
From: Atlanta, Georgia
I don't think that is a valid blanket statement.
!["02996ttx50's Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%23759d7b' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>"</text></svg>)
Banned
Joined: Aug 2011
Posts: 6,522
Likes: 28
Race Director
Joined: Nov 2006
Posts: 15,863
Likes: 1,632
From: Clifton, NJ
Anything below 2k rpms in our cars is asking for trouble. Sure it's easy to do and for some strange reason it feels perfectly ok to sit comfortably at 2k because of the huge torque on tap but this cars are meant to be driven above 2k in any gear especially 3rd onwards. If you lug your car you will prematurely screw your front diff, the cardan-shaft and the gearbox especially if the car is flashed and has even higher torque values lower down. I mentally retrained myself to keep my revs above 3k. Of course I then comfortably take it to onwards to the red line :-). Ps. If any of you recall I had my cardan-shaft and front diff replaced a while ago and complained to Porsche immediately about the rattling noise at low revs. They said that this is normal but I should avoid driving conditions whereby I can hear the noise. Ha ha ha. That answered my question - read; engineering weak point! If you love your transmission parts keep your rpms @ 3k and above for most of your driving.
perhaps try not to make it appear that your opinions are facts?
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Race Car
Joined: Feb 2005
Posts: 4,861
Likes: 91
+1...of course you might have to disregard most of the posts on these forums as very few have actual data to support statements made...LOL
Banned
Joined: Aug 2011
Posts: 6,522
Likes: 28
i agree, but would up the ante. disregard ALL the posts on here as they are all conjecture and no one has any experience with these cars. why, I've never even had a 911 myself LOL
Race Car
Joined: Feb 2005
Posts: 4,861
Likes: 91
Rennlist Member
Joined: Aug 2014
Posts: 193
Likes: 9
From: Maine
It seems that each gear 4th and higher is at about 2,000 RPMs when I'm at 40mph in 4th, 50mph in fifth, and 60mph in 6th (speedometer reading). I generally use that as a rule of thumb when cruising as my minimum speed in those 3 gears. I've found this to be true in my 6-speed A4 and 6-speed S4 I had previously. If anything more than mild throttle is needed, I downshift.
Similar to what others have experienced, my aftermarket exhaust gets the most drone in the 2,200 to 2,800 rpm range so I try to avoid that. Luckily the freeway speed limits here are 70 for the most part so I can cruise in 6th at 77mph actual (80 speedometer) at around 3,000rpm with little to no drone.
I don't think driving at 2,000rpm in this car can be considered "lugging it" unless you're flooring it in a high gear, are going up a steep incline, or a combination of both. My engine seems happy at 2,000rpm and low load with no strange vibrations etc. associated with lugging a car. One downside I can think of though is carbon buildup, so some wide open throttle pulls in high RPM's from time to time are recommended
Similar to what others have experienced, my aftermarket exhaust gets the most drone in the 2,200 to 2,800 rpm range so I try to avoid that. Luckily the freeway speed limits here are 70 for the most part so I can cruise in 6th at 77mph actual (80 speedometer) at around 3,000rpm with little to no drone.
I don't think driving at 2,000rpm in this car can be considered "lugging it" unless you're flooring it in a high gear, are going up a steep incline, or a combination of both. My engine seems happy at 2,000rpm and low load with no strange vibrations etc. associated with lugging a car. One downside I can think of though is carbon buildup, so some wide open throttle pulls in high RPM's from time to time are recommended
