shift @ what rpm (POLL)
09-05-2008 | 10:15 AM
#31
Drifting
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From: Michigan
So many more factors are involved then just your peak power. It's depends on your gearing, the conditions your driving in, the powerband of the vehicle, the mechanical redline, etc..
Some cars such as mine have are still gaining power when it hits the rev limiter so it's ideal to shift just before that but often I'm not quick enough and it bounces ones or twice on it. Other cars with a shorter powerband may require shifting much earlier. There are times you would want to shift before your peak power in one gear in order to be in the powerband in the next gear. Other times you may want to shift early to purposely be below the powerband in the next gear to not upset the stability of the car or for traction concerns.
There is no "shift at this rpm all the time" or an "always shift at this point" answer. Learn you car's powerband, mechanical redline, and gearing then shift accordingly. When driving hard, on a track, auto-x, or "simulated" actions on the street, the speedo and tach are pretty much completely ignored. Too many other things to worry about that are more important. This is why shfits lights help. When your powerband is beyond the redline, they let you know that your going to have to shift soon eventhough your still well within the powerband.
09-05-2008 | 10:37 AM
#32
Odd Posts
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I agree with those espousing conditions as being a key factor. But in general, around town, I try to shift arond 3 to 3.5K. When pushing it around 6K.
09-05-2008 | 11:01 AM
#33
Chainsaw
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Here is a link to the 944 Spec Dyno Charts. http://members.rennlist.com/m758/944SpecDynoCharts.htm
Below is the dyno on my 944 with lots of miles.
Ideal shifting for my car is between 4,500 rpms (tq) and 6,000 rpms (hp).
Below is the dyno on my 944 with lots of miles.
Ideal shifting for my car is between 4,500 rpms (tq) and 6,000 rpms (hp).
09-05-2008 | 11:11 AM
#34
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Here's my honest answer:
So many more factors are involved then just your peak power. It's depends on your gearing, the conditions your driving in, the powerband of the vehicle, the mechanical redline, etc..
Some cars such as mine have are still gaining power when it hits the rev limiter so it's ideal to shift just before that but often I'm not quick enough and it bounces ones or twice on it. Other cars with a shorter powerband may require shifting much earlier. There are times you would want to shift before your peak power in one gear in order to be in the powerband in the next gear. Other times you may want to shift early to purposely be below the powerband in the next gear to not upset the stability of the car or for traction concerns.
There is no "shift at this rpm all the time" or an "always shift at this point" answer. Learn you car's powerband, mechanical redline, and gearing then shift accordingly. When driving hard, on a track, auto-x, or "simulated" actions on the street, the speedo and tach are pretty much completely ignored. Too many other things to worry about that are more important. This is why shfits lights help. When your powerband is beyond the redline, they let you know that your going to have to shift soon eventhough your still well within the powerband.
So many more factors are involved then just your peak power. It's depends on your gearing, the conditions your driving in, the powerband of the vehicle, the mechanical redline, etc..
Some cars such as mine have are still gaining power when it hits the rev limiter so it's ideal to shift just before that but often I'm not quick enough and it bounces ones or twice on it. Other cars with a shorter powerband may require shifting much earlier. There are times you would want to shift before your peak power in one gear in order to be in the powerband in the next gear. Other times you may want to shift early to purposely be below the powerband in the next gear to not upset the stability of the car or for traction concerns.
There is no "shift at this rpm all the time" or an "always shift at this point" answer. Learn you car's powerband, mechanical redline, and gearing then shift accordingly. When driving hard, on a track, auto-x, or "simulated" actions on the street, the speedo and tach are pretty much completely ignored. Too many other things to worry about that are more important. This is why shfits lights help. When your powerband is beyond the redline, they let you know that your going to have to shift soon eventhough your still well within the powerband.
09-05-2008 | 11:25 AM
#35
UAE Rennlist Ambassador
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Generally, every gear i shift between 3,000 and 3,500rpms
I take it easy on the car in traffic and in summer.
At night, when i have the chance to open up, i shift at 6,000rpms. There is really no need to go beyond that point (my opinion) since power & torque drop like a rock after that.
I take it easy on the car in traffic and in summer.
At night, when i have the chance to open up, i shift at 6,000rpms. There is really no need to go beyond that point (my opinion) since power & torque drop like a rock after that.
