so I was reading an article about the new HHR SS
and I sall it has flat shifting (they call it zero lift shifting) ability. pretty cool, ive never seen a factory car with that feature.
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what the fuck is zero lift/flat shifting
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the car lifts for you because of its electronic throttle? whats the difference?
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wasn't that fire-breather shifting without the clutch?
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Yeah the announcer said he only uses the clutch when moving the shifter across the gate, so he's slamming it from 1-2 and 3-4.
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flat shifting = shifting while haveing the gas pedal floored. The car keeps the engine at a certian rpm when you do this to keep the turbo spooled.
its really flat shifting with anti lag on the HHR SS. |
Doesnt the engine just cut ignition? thats how it usually works for the drag guys.
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i assume theyd cut fuel not spark....
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Originally Posted by Braineack
(Post 217815)
i assume theyd cut fuel not spark....
edit: looked around a little, at least the UTEC standalone uses ignition cut, not fuel cut. |
THeres no gas if they cut fuel.
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thanks for clarifying :hsugh:
I suppose i was thinking in terms of nitrous, extra injectors, manifold mounted injectors.. that sort of thing ;) Not every car has the injectors mounted in the head. |
Either are ours ;)
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Has anyone here implemented flat shifting with their megasquirt?
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pumas FTW
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Well, anyway, there is a strong possibility that there is going to be some fuel in between the injector and the inlet valve.
knock knock.. whos detonating? |
Originally Posted by Niklas
(Post 217850)
Well, anyway, there is a strong possibility that there is going to be some fuel in between the injector and the inlet valve.
knock knock.. whos detonating? |
Originally Posted by miataz
(Post 217844)
pumas FTW
I always thought cutting spark would be safer than fuel in case the fuel cut comes during and injector's cycle only adding a dash of the required fuel :dunno: |
Originally Posted by Bryce
(Post 217834)
Has anyone here implemented flat shifting with their megasquirt?
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Originally Posted by Niklas
(Post 217822)
Wouldnt this be quite dangerous in case of any lingering gas?
edit: looked around a little, at least the UTEC standalone uses ignition cut, not fuel cut. or cut spark, injectors fill camber with fuel, then when you ignite again you backfire and blow flames out the tailpipe like an asshole? |
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