Silencer Ring Removal - Affecting CFM ?
#1
Silencer Ring Removal - Affecting CFM ?
I know everyone says removing the silencer ring does not affect anything... BUT.. is there actual study on this...
The HX35 is a really popular turbo on M50B25 and M20B25 BMW Turbo projects, and i have one guy telling me his dyno went down 18hp with removing the silencer ring?
I also know a older guy that pulls a trailer around a lot, he has pyro, boost and fuel press gauges in his truck, and he tells me EGTs dropped with removing it...
Is this fictional or real ???
The HX35 is a really popular turbo on M50B25 and M20B25 BMW Turbo projects, and i have one guy telling me his dyno went down 18hp with removing the silencer ring?
I also know a older guy that pulls a trailer around a lot, he has pyro, boost and fuel press gauges in his truck, and he tells me EGTs dropped with removing it...
Is this fictional or real ???
#3
i want to see hard evidence !!!
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#5
The silencer ring will effect performance. The reason it gets louder when you take the ring out is because there is more turbulance in the airflow. The ring directs the air being rerouted from the mapwidth grove back into the the inducer smoother than not having it at all. I'm sure some of you have heard of "race covers" they are just a JD compressor cover that has a silencer ring permanetly mounted in them. Oh and they're also polished and shiny weee!
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angelic0- (03-23-2011)
#6
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#8
there's no dyno where i live but... i would be more than willing to dyno my truck to see if this is true...
i will however... refuse to drive around with my silencer in... a few horsepower.. vs cool whistle... i think my truck can really spare a few hp to coolness hehe...
but i think it's a interesting topic, now that i've seen a 18hp difference on the dyno sheet for that BMW...
anyone want to try this out next dyno event ???
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BUT... why cooler EGT's with taking out the ring ?? anyone care to explain that ??
i will however... refuse to drive around with my silencer in... a few horsepower.. vs cool whistle... i think my truck can really spare a few hp to coolness hehe...
but i think it's a interesting topic, now that i've seen a 18hp difference on the dyno sheet for that BMW...
anyone want to try this out next dyno event ???
---AutoMerged DoublePost---
BUT... why cooler EGT's with taking out the ring ?? anyone care to explain that ??
Last edited by Red_Rattler; 03-23-2011 at 10:06 PM. Reason: Language...
#9
BTW I wouldn't listen to a thing most of those bimmer guys have to say. There are a few good knowledgeable BMW guys out there but not many. I have an e34 and every BMW forum ive been on is mostly full of misinformed retards that migrated from a ricer civic into a cheap bimmer, kinda like they are migrating to diesels.
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