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Rev limiter

Old 01-16-2007, 02:46 AM
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Default Rev limiter

How does a chipped PR4 limit the revs It's a stupid question I know.

1. Spark
2. fuel cut

Which way is better for a turbo car?

Randy
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Old 01-17-2007, 04:25 PM
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Default Re: Rev limiter

boost cut
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Old 01-17-2007, 04:36 PM
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Default Re: Rev limiter

Its a fuel cut.

What is better? I think it depends on what you'd be using the limiter for.

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Old 01-18-2007, 04:08 PM
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Default Re: Rev limiter

iK,.... fuel cut FTW!
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Old 01-18-2007, 04:22 PM
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Default Re: Rev limiter

y would u want to lean the ---- out of your car to slow the rev's?
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Old 01-18-2007, 04:45 PM
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Default Re: Rev limiter

cut the spark, rich is no good either but a lot better then lean... and when you limit by ignition it keeps your turbo spooled slightly in a launching scenario if your bouncing of it, and just backfires if you go too high..
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Old 01-18-2007, 04:48 PM
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Default Re: Rev limiter

exactly
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Old 01-18-2007, 07:27 PM
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Default Re: Rev limiter

You guys are wacko...

Fuel cut means ZERO fuel...zero fuel means no combustion what-so-ever...there is no LEAN in this case...just no fire.
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Old 01-18-2007, 07:29 PM
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Default Re: Rev limiter

but when it turns back on would that not fire with the boost already there and become a lean condition?
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Old 01-18-2007, 07:34 PM
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Default Re: Rev limiter

Originally Posted by Zeniceguycrx
but when it turns back on would that not fire with the boost already there and become a lean condition?
no when it fires...it fires with the right amount of fuel

it shows up lean on a wideband because the WB02 measures amount of O2 (oxygen) content left over from a burn and when that exhaust is all mixed together it would appear lean to an O2 sensor.
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