[jg968]

I am curious what RPM range others on this forum use on a daily basis. The reason I ask, the owners manual for a '94 928GTS i owned a few years ago had a section on lugging the engine. It actually recommended keeping the engine over 3000 RPM during normal driving. The 928 owners always commented that the 968 engine was "half" of the 928. Since the years are similar, are the engines and engine management similar enough that the same rule would apply? I don't see anything in the 968 owners manual about this...



Jerry

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[Chris Vais]

My 968 is a normally aspirated car with the air box mod as opposed to supercharged. I usual stay above 2800 rpm. My sense, as measured by my butt-o-meter, is the the car really begins to spool-up at about 2800 rpm and above 3200 it just pulls hard all the way to red line.

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[Rap]

That's interesting, what gear are you in keeping it above 2800?

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[DaveN]

I'm cheap on normal driving, I keep around the middle to low 2's for the DD stuff. If I had need poop I just kick it down a gear and hit the SC! Spirited driving I keep the car in the mid 3's and ready for action ;-)

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[flash]

3ish for me now that i am supercharged. i used to keep it near 4 normally aspirated, unless i was on the freeway.

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[Cloud9...68]

On the track, 4-6K (tight, technical track, without any long straights). On the street, I'm with DaveN - little old lady-ish low 2's.

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[ds968]

For tne last ten years that I' ve had this car I have never kept it below 4k rpm, whether in regular city driving or highway driving ( including cruise control ) I typically I drive in the mid 4s to mid 5s all the time. Simply put, I just prefer the sound and feel of the engine revs in that range, so why drive at a lower rpm ?! I could not care less about gas consumption.

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[tamathumper]

I'd go insane in the 4's. I'm a "high 2's" kind of guy.

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[Rap]

Well that's a bit of a range. Seems that everyone drives to their own preference.

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[Darryl]

I run around 3K most of the time, shifting around 4K. That seems to be where this car is most enjoyable, but is certainly still spirited enough to get you in trouble.



- Darryl

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[94SilverCab]

I drive in the mid 3s and shift around 5700 <img src="/forum/images/smilies/968/3gears.gif" class="smilie" alt="" />



Jay

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[BeBe]

I enjoy getting up to speed quickly, then cruising at lower rpm's.

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[Trueblue]

NEVER below 2k, or above 6,2k, otherwise depands on the mood.

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[jfrahm]

My rule is no <acronym title='wide open throttle'>WOT</acronym> under 2500RPM, I think that might be based on something I dimly recall from the manual. I do not get into 6th unless I am over 55 or 60 ish. My bigger worry is what to do when getting out of the neighborhood, Short shifting 1-2 a few times on the cold engine vs revving 1st out more.

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[ds968]

[quote name='ds968' timestamp='1355016361' post='135987']

For tne last ten years that I' ve had this car I have never kept it below 4k rpm, whether in regular city driving or highway driving ( including cruise control ) I typically I drive in the mid 4s to mid 5s all the time. Simply put, I just prefer the sound and feel of the engine revs in that range, so why drive at a lower rpm ?! I could not care less about gas consumption.

[/quote]



addendum - the above is after the engine warms up for five minutes or so.. for some reason I shy away from going over 3,000 - 3,500 rpm when the engine is cold in the mornings . don't ask me why, it's just something I might have read, or heard, etc that stuck with me , whether it's valid or not..

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[gbarrier]

2 to 3 with shifting around 3 to 3.5 but just seems like every day I drive it I manage to push it at least once over 6. I remember that when I had the Tip it would not shift until it reached 3 when it was cold so I would leave the driveway and slowly nurse it up to 3 so it would shift. Once warmed up it was a different story. With that in mind I usually do the same with the stick.

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[ryker]

I got my car back from the transmission shop a couple months ago because the pinion bearing went bad. The mechanic there is a friend of mine, and he told me that in his opinion, the pinion bearing "problem" is not necessarily a design flaw but owners not driving their cars correctly. He said the hardest thing on a pinion bearing is shifting too early, or lugging the motor. He recommends minimum of 3000 rpm for all driving. Not sure if he is correct but come on guys, these are sports car, let 'em rev! <img src="/forum/images/smilies/968/EmoticonCar.gif" class="smilie" alt="" />

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[flash]

nope - your mechanic needs to do some reading. there was even a recall on this. it's a mechanical design and installation issue. the preload was set by robot and the casting tolerances sometimes added up to an incorrect setting. the failure has nothing to do with age, mileage, or driving style. it's just preload.



these are not sports cars. that misnomer is a carryover from the gas crunch 70s where everything with 4 cylinders that could do over 100mph got called a sportscar. these are grand touring cars. it doesn't take much to see that. take a look at the things they did to maintain low end torque. they designed this engine to produce its power between 2500 and 5500. they did not design it to be a high revving engine. sure, it can do it, but there isn't a lot going on up top.



i've always been a high rev nut. until recently i revved my blue car to 7500 all the time. no real reason other than i liked it. now, i just don't have to.

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[ryker]

I defer to your expertise, flash. I also have read about the preload set robotically. Teaches me to listen to everything I hear from local mechanics! I have driven with friends who own "sporty" cars and they shift in the 2000 rpm range, and I cringe. Why own a GT, and drive it like an old sedan?



I'll have to read up on the differences between "sports" and "GT". Never really gave that much thought.



Wow, 7500? That's sure to make some noise. I'm in the 3500-4000 rpm range normally, then kick it up to 5500 or so for more spirited driving.

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[flash]

lol - no worries. between the older mechanics and the internet, there is a whole lot of misinformation floating about. but that is why this site is here. we hope to dispel all of that.



briefly regarding "sportscars" they have to be useless for anything but sport. they cannot have a back seat, or be a hatchback. they would not have things like power seats and such either. some, like me, will argue that no true sportscar has a roof. our car is a touring car for sure. it has ample space for luggage and such, all the creature comforts, and a supple ride. it's light enough to be sporty though, so i happen to think it's a great gt.



re rev - yeah - it was noisy. it was fun, but somewhat silly. this motor really doesn't like to rev that high. that was one of the things that made it a great candidate for the supercharger

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