Re: Installed Aero resonator Reply #75 – March 01, 2014, 11:47:29 pm Tim \ Thank you. Sound is different but not that loud or louder too me, but the new exhaust discharges with noticeable force. Compare to OEM muffler, my friend thinks it is a bit louder when standing behind the RV. We finished it late Friday night & i had to get home & today was my wife's birthday ... I just did not have time to drive it yet. I can't wait though so Sunday I will drive it & i hope it will add a bit hp, even it does not I like the new clean set up and I am glad I get rid of the restrictive old muffler. I did not pay attention what brand the heat tape. My friend got it for me. Over the years he has done a lot of performance work, he knows his craft and what to use. I asked him to get it for me, but I will find out to share it here. John \ Thank you. It is a solid pipe all the way through. My friend custom build it for me, also applied couple of coats of ceramic paint before wrapping it with a heat wrap/tape. Not visible in the pictures but there is a rubber bushing / washer used to attach the resonator to frame, it provides some flex and play. I believe all turned out very nice. For now its tail end does come out under the bumper just like the original was but I want to get it out of the side through the fiberglass panel, there is enough room available to do it. So the way we positioned the Resonator is set that we can remove the tail end pipe later and once we custom build a tail pice, it will exit out of the side ... This way I will not have to worry about scraping it. I did scraped the old one twice. I don't want to do that again.I will have more information for you John about the VDO Gauge once I get in to office Monday. Quote Selected
Re: Installed Aero resonator Reply #76 – March 03, 2014, 12:20:00 pm JohnHI spoke with Nichols Speedometer & Instruments (Nichols Speedometer & Instruments - Speedometers, Tachographs, Service and) for my speedometer after talking with John at 800-265-1818 VDO tech support, he is very helpful. They will sell me the VDO speedometer i need for $160 this includes them programing the odometer with milage that I have on the engine, without programing the odometer it is $103 or 108 I don't recall exactly. John (VDO) also gave me 818-761-5136 for North Hollywood speedometer but i did not talk to them.I hope this helps you,AL Quote Selected
Re: Installed Aero resonator Reply #77 – March 03, 2014, 12:26:07 pm Did you need any wiring changes to go from the older one (which I am sure would be same as mine on 240) to make the digital one work??John H Quote Selected
Re: Installed Aero resonator Reply #78 – March 03, 2014, 02:03:27 pm Quote from: John Haygarth – March 03, 2014, 12:26:07 pm Did you need any wiring changes to go from the older one (which I am sure would be same as mine on 240) to make the digital one work??John HI did not order the speedometer yet but when i purchased & installed the new Tachometer, it was plug and play, I did not need new wiring. When you find your speedometer on the VDO web site ( Speedometer | By Type | Instruments | VDO Instruments and Accessories ) & find your speedometer for example mine ( Vision Black 120MPH 3 1/8" Electronic Speedometer with Autocalibration, 12V | ) click on the downloads click on the instructions sheet ( http://www.vdo-gauges.com/media/instructions/0%20515%20012%20051%20--%20Programmable%20Speedometer©.pdf ) you will see if there is anything you need to do once you had time to go over the document.Also you may want to call VDO tech support @ 800-265-1818 to make sure. Quote Selected
Re: Installed Aero resonator Reply #79 – March 06, 2014, 01:02:11 am Tim \ Finally crazy weather was better today. Since we installed the new resonator this evening I took Matilda and few friends for a joy ride .. now wow .. wow! I did not expect this much improvement :-) very happy I got rid of the old muffler. The 20 to 40-45 & 55 to 70mpg climb is so different now, there is defiantly HP gain with the new resonator. Everyone should get rid of the old muffler. Next i have to find out if there is mpg gain. Quote Selected
Re: Installed Aero resonator Reply #80 – March 06, 2014, 08:41:31 am I too noticed a huge difference. Sadly it is the normal now so I will have to look at turning it up to 500 HP next. Quote Selected
Re: Installed Aero resonator Reply #81 – March 06, 2014, 05:58:23 pm John S, What's so sad about that Larry Quote Selected
Re: Installed Aero resonator Reply #82 – March 06, 2014, 08:04:10 pm @ Propman, we have the same coach. Our exhaust is 3" from the turbo to a 4" adapter at the muffler.Did you leave the 3" to the adapter at the muffler ?Our 'rigid' pipe changes to 'flex' pipe 18" or so before the muffler, was thinking we could make the 3" to 4" change at the new larger flex pipe. ?We wouldn't have to have a new rigid pipe.Thanks for your help.............~Johnnie~ Quote Selected
Re: Installed Aero resonator Reply #83 – March 06, 2014, 11:35:46 pm Quote from: Johnnie & Susan Laird – March 06, 2014, 08:04:10 pm@ Propman, we have the same coach. Our exhaust is 3" from the turbo to a 4" adapter at the muffler.Did you leave the 3" to the adapter at the muffler ?Our 'rigid' pipe changes to 'flex' pipe 18" or so before the muffler, was thinking we could make the 3" to 4" change at the new larger flex pipe. ?We wouldn't have to have a new rigid pipe.Thanks for your help.............~Johnnie~We debated quite a bit about going to 4' all the way from the turbo, well I talk to few trusted Diesel nuts .. long story short consensus was stay with 3' and see how the improvement turns out, especially how it effects transmission shifting. Very happy with results so this is a done project for my GV. It is 3' rigid with ceramic paint and heat wrap in to 4' resonator and 4' out to tail end. We did not wrap the resonator, I am not sure if it is necessary, at that point it is out of the engine compartment and heat is released away from the turbo already, maybe I will do it later on.AL Quote Selected
Re: Installed Aero resonator Reply #84 – March 07, 2014, 12:30:28 am Sad because now I want more. Quote Selected
Re: Installed Aero resonator Reply #85 – March 07, 2014, 12:52:31 am Quote from: John S – March 07, 2014, 12:30:28 amSad because now I want more. Made a living giving boys and girls "more" in the next rv Quote Selected
Re: Installed Aero resonator Reply #86 – March 07, 2014, 11:41:40 pm Is this something that would help on older rigs with say frinstance a cat 3208? I am looking at the oem setup and wondering how it could be restrictive enough that this resonator would make any difference. A couple more liters displacement maybe but half the boost pressure. Quote Selected
Re: Installed Aero resonator Reply #87 – March 08, 2014, 07:00:00 am I got about 2-3 pounds more boost. I run a bit cooler too. The reason I replaced my muffler was because it had a hole in it and would not pass inspection on Virginia. The benefits and better fuel milage of about 1 mpg pay for the change over in three trips to Spokane. I use approximately 170 gallons less each round trip. I record every drop of fuel and when and where purchased. Used to put the price ore gallon but that became painful. This is over multiple trips before the resonator and after. It is about 6000 mile round trip and 170 gallons times 3 bucks a gallon, which is pretty low saves me over five hundred a trip. Quote Selected
Re: Installed Aero resonator Reply #88 – March 08, 2014, 08:33:53 am John S,I like your kind of math. Doesn't take long to figure that one out. It will be on the wish list.Larry Quote Selected
Re: Installed Aero resonator Reply #89 – March 08, 2014, 10:16:25 am What are the reasons and or advantages of the insulation wrap on the exhaust? Quote Selected
Re: Installed Aero resonator Reply #90 – March 08, 2014, 10:39:27 am Quote from: Dave M – March 08, 2014, 10:22:08 amThe insulation on the exhaust pipe is to keep the temp inside the pipe until it escapes out the end of the tail pipe, keeping the engine / rear of the coach much cooler. The original muffler and piping does produce large amount of noticeable heat in the rear.Yep, never never never grab your tail pipe, muffler, or exhaust when the engine has been running for a while. You will end up with a very nasty burn if you do!!! Quote Selected
Re: Installed Aero resonator Reply #91 – March 08, 2014, 12:28:29 pm Quote from: PatC – March 08, 2014, 10:39:27 amYep, never never never grab your tail pipe, muffler, or exhaust when the engine has been running for a while. You will end up with a very nasty burn if you do!!! While we are giving free advice, don't touch your brake disk after stopping either. (I saw grooves and wanted to feel how deep they were - does amazing things to the pads of your fingers!) Trent Quote Selected
Re: Installed Aero resonator Reply #92 – March 08, 2014, 03:16:45 pm I can second to never touch your brakes especially if one sticks and you are going to remove it and replace without waiting a good while. Quote Selected
Re: Installed Aero resonator Reply #93 – April 07, 2014, 11:17:55 pm Does the change to a resonator cause any problems with smog / emissions test Quote Selected
Re: Installed Aero resonator Reply #94 – April 08, 2014, 08:06:53 am We do not have one in VA on our coaches. I do not know but I would say you have to be compliant to the year you are built. Now CA might be different but who knows. It is an interesting question though. Quote Selected
Re: Installed Aero resonator Reply #95 – April 08, 2014, 01:58:30 pm Ii wouldn't know about the newer coaches, but my 2003 is exempt from smog testing in California because of weight. I suspect the newer coaches with pig urine injection are also exempt. Quote Selected
Topic: Installed Aero resonator