iceracercrx

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

Walter

boost cut

leed

Its a fuel cut.

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

Walter

iK,.... fuel cut FTW!

Zeniceguycrx

y would u want to lean the ---- out of your car to slow the rev's?

ichbinsobose

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..

Zeniceguycrx

exactly

Chris Harris

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.

Zeniceguycrx

but when it turns back on would that not fire with the boost already there and become a lean condition?

Chris Harris

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.