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Strange smell when exceeding 4k RPMs for more than a few seconds

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08 Aug 2022 11:06 #244446 by Vandoni
As the title says, the car starts producing a weird "hot" smell when i push the engine over 4k rpms for more than a few seconds, i don't know what it could be, but i had the backbox removed since it's rusty and broken and i'm running it with only the cat for now (enjoying the sound).
What could be the cause and is it something bad?

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08 Aug 2022 12:13 #244447 by Lambert
Running without the back box is essentially pumping very hot exhaust gas straight into the side of the fuel tank and into the plastic of the bumper. They are not going to like this for very long. You need to route the exhaust properly.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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08 Aug 2022 12:26 #244448 by Vandoni
oof, didn't think about that, thanks for the advice

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08 Aug 2022 14:42 #244449 by Lambert
Don't forget the tank is plastic too

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.

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