Quick tip to get low end power back!!
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Scion Evolution
Joined: Oct 2005
Posts: 5,277
From: Andersen AFB, Guam
Originally Posted by ERIC-TC
Yep, that's why you only want to install the TRD lowering springs in the back. This will make the computer think you are going up hill all the time ;)
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Joined: Jan 2006
Posts: 249
yeah..VVTi is continuous throughout the whole Rpm range. All it means is that as the engine speed picks up..the valve timing gets more aggessive, opening earlier to allow the cylinders to fill more completely before ignition-making for bigger explosions, and more power (than the same engine would make without varied valve timing.
Also, yes, removing the rear section of your exhaust will change the exhaust tone..but not in a good way, i would imagine. Plus, exhaust restricition/backpressure creates torque..i noticed a little loss of torque (but a tad more power) as soon as i put my dc exhaust on. Removing the muffler is just stupid, and illegal.
Also, yes, removing the rear section of your exhaust will change the exhaust tone..but not in a good way, i would imagine. Plus, exhaust restricition/backpressure creates torque..i noticed a little loss of torque (but a tad more power) as soon as i put my dc exhaust on. Removing the muffler is just stupid, and illegal.
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Joined: Mar 2006
Posts: 16
Originally Posted by Petem
don't mean to take the thread of the subject.... but while i believe the VVT-i is always working.. something happens at just over 3000rpms.. because it defenently feels like something "KICKS" in.. im not the only one that feels it.. i have been asked about it by other tc owners ... there is defenently something that does happen at just over 3k rpm .........
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Joined: Jul 2005
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From: Dallas/Fort Worth
Originally Posted by TheQuietThings
Originally Posted by Petem
don't mean to take the thread of the subject.... but while i believe the VVT-i is always working.. something happens at just over 3000rpms.. because it defenently feels like something "KICKS" in.. im not the only one that feels it.. i have been asked about it by other tc owners ... there is defenently something that does happen at just over 3k rpm .........
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Hence the idea of varying the timing of your valves as engine speed increases to maximize combustion and power output...what a novel idea.. WE could call it , VAriable Valve timing!! and we'll throw a little "i" in at the end!
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Joined: Nov 2005
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Originally Posted by The_Sciontist
Hence the idea of varying the timing of your valves as engine speed increases to maximize combustion and power output...what a novel idea.. WE could call it , VAriable Valve timing!! and we'll throw a little "i" in at the end!
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