Subject	Yes, I used one. I was advised to install it as close to >>
Posted by	Gordo NA2LS Daytona on September 08, 2018 at 9:18 AM
	This message has been viewed 353 times.
In Reply To	Has anyone recently tried a venturi inside the exhaust? posted by MikeD (Philly) on September 07, 2018 at 11:46 AM
Message	the muffler, or resonator, as possible. The tailpipe was cut and the venture tack welded in so it could be removed later. I was running a resonated 2.5 Borla system and the drone was minor; however it did in fact perform as advertised, and eliminate the drone around 2200-2400... I forget the exact rpm range. As I recall the concept was to speed up the relatively cool [and slower] exhaust gases by constricting the diameter of the tubing before these gases passed through the noise silencer. Apparently the speed of the flow is related to the resonant sound. I'm not sure about that, but the device did reduce the offending noises without moving them up or down the rpm range. _________________________________________________
Follow Ups	Trying to quiet 3" test pipe drone.... - TTkeeper 23:55:18 09/05/18 Stock cat location is where they fit. (n/m) - Bernie (NoVA) 00:17:13 09/06/18 I went with 3" resonated TP's and it's overall pretty good. - PiotrC70 11:21:03 09/08/18 You might consider a resonated X-pipe - Polish 01:27:44 09/06/18 Re: You might consider a resonated X-pipe - Unluky (MO) 14:09:23 09/06/18 Did you get resonated TPs in addition to the resonated X - Polish 14:38:03 09/06/18 I have a full 3" exhaust. Even with large resonators - MixManMash 07:31:18 09/06/18 Did you calculate the necessary size of the helmholtz - nissubaru 14:26:14 09/06/18 I winged it. These are really Branch-T resonators. (n/m) - MixManMash 21:54:27 09/06/18 Synapse's testing shows biggest is best. - BlackholeZ 01:14:37 09/07/18 build a valvetronic setup like mine if you want it very - volcomstone550 14:00:19 09/06/18 Re: Trying to quiet 3" test pipe drone.... - Unluky (MO) 14:05:48 09/06/18 Cats are supposed to be better than resonators - ZXoltan 16:04:10 09/06/18 That has been my experience also; however, the nature of - Gordo NA2LS Daytona 09:27:13 09/08/18 I had very similar exhaust for years..... - Z ONLY1 17:23:11 09/06/18 Re: Trying to quiet 3" test pipe drone.... - holcomb74 19:52:12 09/06/18 Has anyone recently tried a venturi inside the exhaust? - MikeD (Philly) 11:46:23 09/07/18 Yeah this is the easy mod I'd suggest. (n/m) - BlackholeZ 02:42:06 09/08/18 I had a venturi in my setup on a car I owned in the past - Mr.Stacy 06:02:35 09/08/18 Did it quiet down the B&B or just help with resonance? (n/m) - ZXoltan 15:03:37 09/08/18 Changed the tone and helped with the resonance. I - Mr.Stacy 04:58:06 09/09/18 Yes, I used one. I was advised to install it as close to >> - Gordo NA2LS Daytona 09:18:21 09/08/18 I’ve been looking at these and my thoughts were - MikeD (Philly) 14:16:39 09/09/18 Borla has always been 2.25 for the z32 (n/m) - Bernie (NoVA) 23:27:07 09/11/18
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