Just Curious..at what RPM do you shift?

[Tobra]

I always shift when it sounds like it is time to shift.

[GrindingGears]

One of the joys of the Porsche flat 6 is the torque in the mid to higher RPMs. When driving air-cooled Porsches I generally cruise at 3-4k and shift from 3k up to red.

My DD is a turboed Subaru flat four and I generally follow the same technique, though I have no problem cruising on the freeway at 2.5k with that car.

[trekkor]

My car is limited at 7000 with the MSD rev limiter.

I'll free it up to 7300-7400 later this year.


KT

[wdfifteen]

Originally Posted by id10t

Learning to drive in the 356, dad would get on me about not shifting until whatever rpm you'd end up at was out of the lugging-the-engine range and starting to get into the develops-the-power range... about 2k rpms on the C engine.

Your dad is a good guy. He let you drive the 356.
One of the things I most regret in life is telling my stepson he couldn't drive my Speedster to his prom when he asked. The lights weren't working and it wasn't starting reliably and I was too lazy to fix it. As I look back - seeing he and Andrea drive off in that car would be one of my fondest memories and proudest moments. I've been kicking myself for 25 years over that.

[dd74]

Between 5000 and 7300 RPM.

[id10t]

Originally Posted by wdfifteen

Your dad is a good guy. He let you drive the 356.
One of the things I most regret in life is telling my stepson he couldn't drive my Speedster to his prom when he asked. The lights weren't working and it wasn't starting reliably and I was too lazy to fix it. As I look back - seeing he and Andrea drive off in that car would be one of my fondest memories and proudest moments. I've been kicking myself for 25 years over that.

I learned to drive in it but wasn't allowed to drive it myself on the streets... so if it makes you feel any better I couldn't take it to my prom either, and it is "just" a C coupe... but had has been dead for almost 15 years now, and I still have the car.

[livi]

Originally Posted by Tobra

I always shift when it sounds like it is time to shift.

Same here. I keep reading all about focus on certain rev numbers. I believe load is more relevant than exact revolutions.

[Jim Bremner]

Milt Mitner who raced for Ford in Mustangs in the Trans Am Series in 1967 .The Alfa Romeo Club of Southern California had him out as a guest instructor.

He buckled into the drivers seat of my '67 fastback mustang. He asked me that question.

"Peak Hp is at 6,400 rpm so I shift around there" He grumbled "seems about right." "Did I ever tell you how much I HATED driving these heavy pigs" he exclaimed.

Leaving pit row on a cold engine on the warm up lap he hit 7,100 rpm for his shift into 2nd.

I could go about the three laps of terror, but I will say that his lap times helped me to drop my lap times down to his. Thank You Milt!

[sc_rufctr]

I don't really know for sure but somewhere over 3,000... I shift when it feels/sounds right.

My old car loves revs... She just goes and goes.

On one of my first drives I existing the car with the engine running to check the oil level. As I got out of the seat my left foot flattened the throttle. (RHD)
It took me a few moments to realize what was happening and as I took my foot of the pedal I saw well over 7,500 on the RPM gauge.

That scared the hell out of me... I was expecting the thing to blow on the way home. That was over 11 years ago.

[kaisen]

Shift a few hundred rpms above peak horsepower, depending on how heavy the flywheel is

[A930Rocket]

On the track, I had a shift light that came on at 6000 RPM, then the MSD kicked in at 6400 RPM. Conservative? Maybe, but it helps the engine to live longer IMHO.