Ideia to quiet down a 6.2L

[rchalmers3]

Don, if you drive with the passenger window down the intake noise will be right there, even worse because it is kinda choppy and very distinct when separated from the general din.

Some people like it though, so you can never tell...

Rick

 

[islandguydon]

You just solved the sound problem

Thanks for the info, this site is cool as ****. I appreciate your help.

IGD,

I DID exactly what you are trying to contemplate.

http://www.steelsoldiers.com/cucv/37944-hood-insulation-install.html

I use fatmat, not dynamat UNDER the LMC Trucks Insulator (cost $62 plus shipping - you need 12 retainers to hold it in place and they are $1 each, plus the insulator at $40 - edit - note that the middle hole in the hood is NOT the correct size, so if you want to put a insulator retainer there you MUST enlarge the hole).

This quiets the engine down almost entirely. I use a modified intake with a K&N airfilter and that puppy IS noisy, but it does flow air. I recently replaced my mufflers with turbo mufflers so now I have a nice throaty roar from them and now I have good air flow in AND out. It's an interesting sound mix. I'm not sure which is louder, the intake or the exhaust. But it's a sound I enjoy.

Hope that helps.

 

[idM1028]

Banks makes a turbo kit for the 6.2 that includes a full intake and exhaust system plus the turbo. They'll also throw in gauges if you want them. It's pricey though. Figure about $2,000 for the kit with gauges. Maybe 200 or 300 less for the kit without gauges. On the issue of noise, I've got a buddy with an M1009. He once asked me if I tried any additives with the truck. I told him the only thing I've got is Diesel 911 in case it gets really cold and I can't start it. He told me he was running something called Diesel Clean and he noticed the truck ran quieter especially going down the highway. Haven't tried it yet, but might have to.

 

[islandguydon]

I have used 911 my whole life on every diesel truck I own, its a good additive for fuel geling from the cold. I noticed after warm up it quites down some, I do appreciate your info, thanks. I think I might go with a banks turbo or swap out mufflers and ad a snorkel. I will decide in a week or so.

 

[jwaller]

a thick mix of WMO will queit it down considerabbly.

 

[big block 88]

I have used 911 my whole life on every diesel truck I own, its a good additive for fuel geling from the cold. I noticed after warm up it quites down some, I do appreciate your info, thanks. I think I might go with a banks turbo or swap out mufflers and ad a snorkel. I will decide in a week or so.

Banks does make a turbo kit for the 6.2 but it is $$$$$$$$$$$$$ as stated above. Get on egay or go to a junk yard and grab an HX35 off a cummins 6bt, you don't need an intercooler just dump straight into the intake, you can fab your own pressure box above the intake or use one off of a 6.5 turbo diesel. Other than that all that is needed is an oil feed line from you oil pan. It is a but indepth but not out of any shade tree mechanics ability. The entire kit could be assembled for less 200 bucks assumeing you can find a good deal on a turbo.

I'm not sure if this is the route you want to go, but is a viable option for sure. Insulation from LMC will help some too, it may be a good move.

 

[ryan77]

Im trying to find a LOUDNER for my M1009!!!!!!!

 

[islandguydon]

Now your talking, I like the set up. Thanks for your help. Don

 

[islandguydon]

Im trying to find a LOUDNER for my M1009!!!!!!!

What is a LOUNDER...........?

 

[DIESELGREEN]

Think he meant "loudener".... As in somethin to make his rig louder

 

[cucv1833]

Heres a pic of my turbo on my M1008 and theres nothing quite about my truck. The hack job exhaust install and 5in smoke stack in back dont help neither LOL. I got my new M1009 and i will leave it stock just the way it was meant to be. to quite the truck down the right way you probaly need to insulate the firewall, cab, and hood. i like the sound.

http://www.steelsoldiers.com/attach...7323-thanks-s-s-its-coming-along-dsc00251.jpg

 

[SGT Estum]

Im trying to find a LOUDNER for my M1009!!!!!!!

-- except that I would like mine to run on a toggle switch.

 

[Midnight Rider]

Heres a pic of my turbo on my M1008 and theres nothing quite about my truck. The hack job exhaust install and 5in smoke stack in back dont help neither LOL. I got my new M1009 and i will leave it stock just the way it was meant to be. to quite the truck down the right way you probaly need to insulate the firewall, cab, and hood. i like the sound.

http://www.steelsoldiers.com/attach...7323-thanks-s-s-its-coming-along-dsc00251.jpg

I like that setup.

Which turbo is that? 6.2, 6.5, .....????

edit: Nevermind, I just looked at your signature.

 

[patracy]

That's a factory 1ton 6.5 turbo setup.

 

[nk14zp]

Im trying to find a LOUDNER for my M1009!!!!!!!

Put a 3-53 in it.

 

[bigmech]

quiet

I built a snorkel intake out of pvc and ran it up the passenger side a pillar just like your picture. I ran it all over the dunes and pulled a baot also without losing any noticable power.

 

[stampy]

Cold ram air intake from the front and WVO blend in the tank. Mine runs quieter now, than on tank diesel alone.

 

[Keith_J]

I'm having trouble finding a scrap yard with the intake tube from the radiator support. Any online sources? LMC has been mentioned, no luck there.

Diesels run better in hot weather with cool air.

 

[cscmc1]

I'm having trouble finding a scrap yard with the intake tube from the radiator support. Any online sources? LMC has been mentioned, no luck there.

Diesels run better in hot weather with cool air.

Me too. Any tips on what trucks (years/engines) to check? I'm not having much luck either!

 

[edpdx]

I am presently running a modified air cleaner that includes the K&N filter shown. It flows well; but as some here pointed out when I first presented it, it does nothing to lessen the noise.

I always liked the idea of plumbing the snout to the front of the radiator support as the Civvy models have. I have run across dozens of these at the wrecking yard; but have been put off by the fact:

• Longer air intake tube = restriction = power loss
• Plumbing is tight because of battery tray and some other junk.

Having read this thread made me think of the dual snorkels that muscle cars ran in the 70's. With two snorkels feeding the intake:

• you may break even or see an increase in flow
• noise should decrease
• con- still have to be creative getting it plumbed

I'll give it a try. I saw a guy that had simply added a snorkel from another air cleaner- he simply drilled out the rivets that held the snorkel to the Air Cleaner body and installed it onto his existing cleaner after cutting another hole in it the receiving Air Cleaner. Since our engines don't typically have a snorkel anyway, we could rob the entire parts from donor rigs at the yard.


Cover the existing hole on your Air Cleaner with a piece of sheet metal riveted in place. Cut two new holes at the appropriate angles and plumb as required.


Something like this: