2011 c2gts
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Joined: Apr 2006
Posts: 1,445
Rep Power: 101
Zone 3 - and above are where it starts to get rough on the engine. These only happen when someone downshifts to a lower gear, forcing the engine above the range where the rev-limiter would cut in. PDK transmissions will NOT allow any Zone 3 over-revs to occur.
Registered User
Joined: Sep 2011
Posts: 294
From: New jersey
Rep Power: 26
**from my dealer**
For reference: An "ignition" is one single spark plug firing. There are 3 ignitions per RPM, so they rack up VERY quickly.... for a track car, it is regular to see hundreds of thousands of zone 1 'ignitions'
Zone 1 - This is redline- essentially, hitting the rev-limiter once will produce tens or hundreds of ignitions. These will not damage the engine at all.
Zone 2 - Only a few RPM's over redline - Essentially you will have a handful of Zone 2 ignitions even if you hit the rev limiter. Again, these are not hard on the engine.
Zone 3 - and above are where it starts to get rough on the engine. These only happen when someone downshifts to a lower gear, forcing the engine above the range where the rev-limiter would cut in. PDK transmissions will NOT allow any Zone 3 over-revs to occur.
For reference: An "ignition" is one single spark plug firing. There are 3 ignitions per RPM, so they rack up VERY quickly.... for a track car, it is regular to see hundreds of thousands of zone 1 'ignitions'
Zone 1 - This is redline- essentially, hitting the rev-limiter once will produce tens or hundreds of ignitions. These will not damage the engine at all.
Zone 2 - Only a few RPM's over redline - Essentially you will have a handful of Zone 2 ignitions even if you hit the rev limiter. Again, these are not hard on the engine.
Zone 3 - and above are where it starts to get rough on the engine. These only happen when someone downshifts to a lower gear, forcing the engine above the range where the rev-limiter would cut in. PDK transmissions will NOT allow any Zone 3 over-revs to occur.
How much a dealer changes for DME readout. is this can be done by yourself with any OBDII port readers?
Last edited by ksdprasad; Feb 17, 2012 at 07:05 AM.
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