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Duals banging floor....affect dyno?

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Old Dec 12, 2005 | 11:09 AM
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Default Duals banging floor....affect dyno?

I scheduled my car for the dyno this Wednesday. At partial to WOT, the driver side pipe bangs on the floorboard. I have poly motor mounts on the way. Will this banging have a negative affect on my numbers. I have read that the banging will set off knock sensors or something to that nature. I just want to make sure that this won't cause me lower or inaccurate numbers. If that is the case, I will wait until I get the poly motor mounts in. Thanks for any input.
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Old Dec 12, 2005 | 11:58 AM
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it will probably cause some KR, mine did. i had to put some rubber inbetween so it wouldnt hit
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Old Dec 12, 2005 | 01:07 PM
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I ended up using a five pound hammer to take care mine hitting the floor. I also had to use some rubber hose, just in case. My problem was with TSP TDs.
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Old Dec 12, 2005 | 01:11 PM
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Originally Posted by WicketMike
it will probably cause some KR, mine did. i had to put some rubber inbetween so it wouldnt hit
Exactly, it could cause some knock, hp loses less than 10. Or you could be fine.
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Old Dec 12, 2005 | 10:20 PM
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So should I wait until the poly motor mounts are in, or go ahead and dyno as is?
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Old Dec 13, 2005 | 12:35 AM
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From: Justin, TX
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lay the rubber in there then dyno. couldnt hurt. That is what I did when I had my y-pipe.
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Old Dec 13, 2005 | 08:04 PM
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Thanks for the input, but I decided to delay the dyno until I get the poly motor mounts in there. Hopefully next week or the week after.
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