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Probably a dumb/noob question..

OK... First off, this method of keeping the throttle more than 0% is called "No-Lift Shifting" AKA "Power Shifting". This is easily done on cable-driven throttle bodies and on some

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Old 07-06-2009, 01:42 AM   #1 (permalink)
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OK... First off, this method of keeping the throttle more than 0% is called "No-Lift Shifting" AKA "Power Shifting".

This is easily done on cable-driven throttle bodies and on some newer cars with electronic "Fly-By-Wire" throttle bodies. I believe all cars since 2005 are fly-by-wire. For example, on my 2007 Solstice, you cannot power shift. The throttle body automatically closes if you try to power shift. But newer models now allow this.

With the syncrorev matching system on with the 370z, I wouldn't attempt this. With it off, I'm sure it's possible.
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Old 07-06-2009, 01:58 AM   #2 (permalink)
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Originally Posted by Crash View Post
OK... First off, this method of keeping the throttle more than 0% is called "No-Lift Shifting" AKA "Power Shifting".

This is easily done on cable-driven throttle bodies and on some newer cars with electronic "Fly-By-Wire" throttle bodies. I believe all cars since 2005 are fly-by-wire. For example, on my 2007 Solstice, you cannot power shift. The throttle body automatically closes if you try to power shift. But newer models now allow this.

With the syncrorev matching system on with the 370z, I wouldn't attempt this. With it off, I'm sure it's possible.
Sounds like bad shifting in general, like flatfoot shifting (same thing?)... but it is possible, although without a strong clutch or tranny (or both), something might break. If not those two, possibly a torque sensing diff or a bad driveshaft, even the connections, could break. But that also means in a car with high torque curves (linear like our Zs), you can basically chirp the tires constantly up to 2nd or 3rd gear. Pretty insane.
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Old 07-06-2009, 09:54 AM   #3 (permalink)
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Originally Posted by 370Z Purist View Post
Sounds like bad shifting in general, like flatfoot shifting (same thing?)... but it is possible, although without a strong clutch or tranny (or both), something might break. If not those two, possibly a torque sensing diff or a bad driveshaft, even the connections, could break. But that also means in a car with high torque curves (linear like our Zs), you can basically chirp the tires constantly up to 2nd or 3rd gear. Pretty insane.
It's actually an advertised feature of the turbocharged Cobalts and HHRs. It keeps the turbo spooled up between shifts. I think it basically amounts to a secondary rev limiter.
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Old 07-06-2009, 12:33 PM   #4 (permalink)
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Originally Posted by Crash View Post
OK... First off, this method of keeping the throttle more than 0% is called "No-Lift Shifting" AKA "Power Shifting".

This is easily done on cable-driven throttle bodies and on some newer cars with electronic "Fly-By-Wire" throttle bodies. I believe all cars since 2005 are fly-by-wire. For example, on my 2007 Solstice, you cannot power shift. The throttle body automatically closes if you try to power shift. But newer models now allow this.
There is an aftermarket piggy-back kit that can allow for this (drive by wire only). You can program the delay for your normal shift time. When the clutch is engaged, the piggy-back reduces the throttle and then goes back to WOT after the programmed delayed. It is more beneficial for a turbo car because you can have the system keep the boost on....or at least help keep the turbo spooled. For an NA car, it just seems like being lazy.

EDIT----The piggy-back pulls ignition, not throttle. Oppss.... Here is the link....
http://www.npcompleteperformance.com/wotbox
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Last edited by Island_370; 07-06-2009 at 12:38 PM. Reason: Correction and added link
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