All-Terrain Lawn Tractor Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSearchRegisterLog inBuild-OffTop Tractor Challenge
Welcome to the All Terrain Lawn Tractor Forum! . . .
New Top Tractor Challenge and Build-Off Profile Buttons on the menu bar! . . .
2020 Build-Off Winners . . . 1-Hillbilly Offroading . . . 2-darkside0914
HASPIN 2021 . . . Wednesday June 23rd through Sunday June 27th.
2021 Top Tractor Challenge August 14 competition –August 15 competitors ride, Pymatuning Pennsylvania **INFO HERE**
No 2021 Build-Off. Will return in 2022. Stay tuned later this year for rule changes!

 

 Honda gx390 exhaust ideas

Go down 
+2
matthew sidor
goesman
6 posters
AuthorMessage
goesman
Screwdriver
Screwdriver
goesman

Age : 42
Join date : 2012-01-18
Posts : 119
Forum Rep : 0
Location : Salem, Mo.

Honda gx390 exhaust ideas Empty
PostSubject: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeFri Aug 24, 2012 1:28 pm

I am running a Honda 13 HP gx390 that was originally used on a power washer. I am wanting do some thing different with the exhaust. I'm not looking for any thing loud so a quite muffler of some sort would be great. Any ideas
Back to top Go down
goesman
Screwdriver
Screwdriver
goesman

Age : 42
Join date : 2012-01-18
Posts : 119
Forum Rep : 0
Location : Salem, Mo.

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeFri Aug 24, 2012 1:58 pm

I found this cool kit but its a bit expensive for my liking. http://www.nr-racing.com/exhaust.htm
Back to top Go down
matthew sidor
Screwdriver
Screwdriver
matthew sidor

Age : 27
Join date : 2012-04-13
Posts : 184
Forum Rep : 0
Location : Montesano, Washington

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeFri Aug 24, 2012 3:36 pm

well thats not a lot but if your not lazy u can make one
Back to top Go down
Hillbilly Homer
Screwdriver
Screwdriver
Hillbilly Homer

Join date : 2012-04-22
Posts : 197
Forum Rep : 3
Location :

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeFri Aug 24, 2012 4:46 pm

$12.00
Honda gx390 exhaust ideas DSCF0303
Back to top Go down
goesman
Screwdriver
Screwdriver
goesman

Age : 42
Join date : 2012-01-18
Posts : 119
Forum Rep : 0
Location : Salem, Mo.

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeSat Aug 25, 2012 4:11 pm

Nope I am not lazy at all. I liked that one kit for it nice smooth bends and ready to go exhaust flange. I am going to go to Lowes and check out there galvanize conduit bends. I have used them before. I like the idea with the two mufflers put together. Its not to restrictive is it. Thanks
Back to top Go down
W1ldyOvvnZ
Screwdriver
Screwdriver
W1ldyOvvnZ

Age : 25
Join date : 2011-12-06
Posts : 499
Forum Rep : 0
Location : Winchester, ON, Canada

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeSat Aug 25, 2012 5:15 pm

I like the Tractor Exhaust by NR Racing, im not sure if they make them for the GX390's or if its only for the GX200's. I bought alot of my Parts for my Baja Warrior from there, never bought an exhaust from them though.
Back to top Go down
http://www.stat10.tk/
Hillbilly Homer
Screwdriver
Screwdriver
Hillbilly Homer

Join date : 2012-04-22
Posts : 197
Forum Rep : 3
Location :

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeSat Aug 25, 2012 6:54 pm

@goesman wrote:
I like the idea with the two mufflers put together. Its not to restrictive is it. Thanks

Not at all. i used 1" the stock outlet was less then 1/2.
Back to top Go down
Chopperhed
Moderator
Moderator
Chopperhed

Age : 54
Join date : 2012-10-14
Posts : 801
Forum Rep : 0
Location : Edmonton, Alberta, Canada Eh!

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeMon Dec 10, 2012 7:38 pm

For custom exhaust on the GX390, you will either have to modify the stock manifols to take threaded pipe or build a new axhaust from the flange back.

The exhaust port is not threaded like some of the other engines.

I made a flange out of 1/4" plate, and brazed a piece of 1-1/8" galvinized flex to that, and brazed a piece of 1" conduit to the end of the flex. It exits out the rear under the fender

Be very careful when welding or brazing galvinized, zinc fumes are very very bad for you.
Back to top Go down
http://http:\\members.shaw.ca\ducksgarage
Tractor Man Jeff
Moderator
Moderator
Tractor Man Jeff

Age : 26
Join date : 2012-06-26
Posts : 492
Forum Rep : 0
Location : Back in the sticks of VA

Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitimeMon Dec 10, 2012 10:40 pm

5$ for the muffler. Used black iron 3/4" pipe and the flange from the stock muffler. Welded using a Lincoln AC/DC Stick box. It can be done. It will need a lot of test fitting done IF you do it off the tractor.
Honda gx390 exhaust ideas DSC_0252

Honda gx390 exhaust ideas DSC_0253

Honda gx390 exhaust ideas DSC_0244

Honda gx390 exhaust ideas DSC_0384
Back to top Go down
Sponsored content




Honda gx390 exhaust ideas Empty
PostSubject: Re: Honda gx390 exhaust ideas   Honda gx390 exhaust ideas Icon_minitime

Back to top Go down
 
Honda gx390 exhaust ideas
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Chassis Modification :: Exhaust-
Jump to: