interesting read on horsepower "lost" with catalytic converters

"aberson Bresident of the FullyAssed Committe" (emaxxbl) 02/27/2018 at 21:23 • Filed to: None

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!!!error: Indecipherable SUB-paragraph formatting!!!

Basically me the entire time.

But it would of been neat if they also tested a turbo’d car and/or something with a big honking V8/10/12/16.

TL;DR: if you have a modern NA car cutting the cat only makes it smelly.

TorqueToYield > aberson Bresident of the FullyAssed Committe 02/27/2018 at 21:38

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No cat - good luck with that carbon monoxide poisoning.

Urambo Tauro > aberson Bresident of the FullyAssed Committe 02/27/2018 at 21:51

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Seems like manufacturers are already incorporating all the easy stuff that used to be must-have mods. Like CAIs. Aftermarket ones are pretty much pointless now that cars are coming from the factory with literal cold air intakes . Aren’t all modern OE catalytic converters already “high-flow” units too?

aberson Bresident of the FullyAssed Committe > Urambo Tauro 02/27/2018 at 22:05

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ye basically all OE cats are the matrix type and not the pellet cats of yester-year.

Jordan and the Slowrunner, Boomer Intensifies > TorqueToYield 02/27/2018 at 22:39

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...Catted cars will still kill the fuck out of you with Carbon Monoxide. Carbon Dioxide and Carbon Monoxide are two different things.

kanadanmajava1 > aberson Bresident of the FullyAssed Committe 02/28/2018 at 06:21

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Weird that stock unit unit was surprisingly good compared to the other.

My trackday project Vectra doesn’t have a catalytic converter as it’s from the last year (‘89) when Vectras weren’t yet “low emission” vehicle. Its engine management doesn’t even have a lambda sensor to monitor the mixture.

But after I changed the engine into a more powerful one I’m going to give it a catalytic converter and a bit more sophisticated engine management.

punkgoose17 > aberson Bresident of the FullyAssed Committe 02/28/2018 at 06:37

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I’m just here for the sloth gif. You get a star.

vondon302 > Urambo Tauro 02/28/2018 at 06:54

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Too true. All the low hanging fruit has been picked