If you have a bypass valve instead then you should still be safe. If you have absolutely NO means of venting or recirculating the air, then you are gonna have a bad time indeed. The turbo needs a way to let off that excess boost when you let go of the throttle. Or else things break or worse, you hit the brakes and you keep going because the engine is still recieving boost for that tiny bit of time.
I know this is a long time ago, but that is absolutely wrong. Your car will not just keep boosting without your foot on the throttle, lol. What WILL happen is the remaining boost pressure will vent it’s way out of the turbo (that’s where turbo flutter comes from), and it can destroy your turbo over time.
It’s not bad, but it’s not good for it either. Pretty much when you build boost, then snap the throttle shut, the pressure between your TB and compresser wheel has nowhere to go so it gets forced back to the compressor, thats where the infamous “stu stu stu” noise comes from. This in itself is not bad for the turbo, but it puts A lot of stress on it and will shorten its lifespan.
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If you have a bypass valve instead then you should still be safe. If you have absolutely NO means of venting or recirculating the air, then you are gonna have a bad time indeed. The turbo needs a way to let off that excess boost when you let go of the throttle. Or else things break or worse, you hit the brakes and you keep going because the engine is still recieving boost for that tiny bit of time.
I know this is a long time ago, but that is absolutely wrong. Your car will not just keep boosting without your foot on the throttle, lol. What WILL happen is the remaining boost pressure will vent it’s way out of the turbo (that’s where turbo flutter comes from), and it can destroy your turbo over time.
It’s not bad, but it’s not good for it either. Pretty much when you build boost, then snap the throttle shut, the pressure between your TB and compresser wheel has nowhere to go so it gets forced back to the compressor, thats where the infamous “stu stu stu” noise comes from. This in itself is not bad for the turbo, but it puts A lot of stress on it and will shorten its lifespan.