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Spray-Bomb · 03-13-2007, 12:29 AM

Has anyone made megaphones for their exhaust

If I could just get the formula or measurements then I could figure it out from there (I'd like to go from 3" to 6" in 2 feet)

Thanks in advance, Matt

RACINJASON22 · 03-13-2007, 01:00 AM

Not a fan of the magaphone thing but if it's yours thats OK. did a little figuring for you and seem all you would need to do is 3"Xpi 3.14 IIRC and 6"xpi 3.14 and draw out on poster board like this and wrap and weld. the poster board will help you get the ends to come out squared off instead of angled then the local parts store or exaust shop for the short piece needed for the clamping area. hope this helps. NO MESUREMENTS WERE DONE IN DRAWING. Just to show what I mean. drawin came out smalle than it shoul have wording is ends will be curved in final and roll and weld seam. if you find a fomula post it for us. RJ22

FLEET72 · 03-13-2007, 01:01 AM

Cone layout software: http://www.pulserate.com/

RACINJASON22 · 03-13-2007, 01:30 AM

Thats the curve I was thinking of....hmm....I guess I did pay attention in school alittle.

Thanx FLEET&@ for the link to that software. RJ22

cdowns · 03-13-2007, 01:53 AM

it's alot easier to buy them from speedway motors and trim to length and for the pipe diameter

FLEET72 · 03-13-2007, 02:00 AM

Quote:

Originally Posted by Spray-Bomb

If it comes in a box, It's not custom !

^ ^ ^

Quote:

Originally Posted by cdowns

it's alot easier to buy them from speedway motors and trim to length and for the pipe diameter

Besides, they don't have the size he wants :http://www.speedwaymotors.com/p/1719,,_Megaphones.html

Spray-Bomb · 03-13-2007, 12:10 PM

Thanks everyone

The reason I want to build them in the first place is that I don't have much money at the moment

I'll post a thread whif (when / if) I build em

Thanks, Matt

03-13-2007, 12:29 AM	#1
Spray-Bomb Texas Big Wig Join Date: Jan 2007 Location: Mineola, Texas Posts: 5,620	Has anyone made... Has anyone made megaphones for their exhaust If I could just get the formula or measurements then I could figure it out from there (I'd like to go from 3" to 6" in 2 feet) Thanks in advance, Matt __________________ Just not low enough... ----------------------------- Sinister Killer

03-13-2007, 01:00 AM	#2
RACINJASON22 GEARHEAD Join Date: Jan 2007 Location: CENTRAL,PA Posts: 2,284	Re: Has anyone made... Not a fan of the magaphone thing but if it's yours thats OK. did a little figuring for you and seem all you would need to do is 3"Xpi 3.14 IIRC and 6"xpi 3.14 and draw out on poster board like this and wrap and weld. the poster board will help you get the ends to come out squared off instead of angled then the local parts store or exaust shop for the short piece needed for the clamping area. hope this helps. NO MESUREMENTS WERE DONE IN DRAWING. Just to show what I mean. drawin came out smalle than it shoul have wording is ends will be curved in final and roll and weld seam. if you find a fomula post it for us. RJ22 Attached Images __________________ 72 SWB 2WD MY PROJECT 72 LWB 4X4 FUTURE PROJECT SUBSCRIBE HEREBOARD VENDORS HERE NORWOOD MEET SURVIVOR!

03-13-2007, 01:01 AM	#3
FLEET72 Registered User Join Date: Jan 2007 Location: Sonoma, CA Posts: 521	Re: Has anyone made... Cone layout software: http://www.pulserate.com/ Attached Images __________________ Oscar '72 Shortbed Fleetside '95 Jimmy 4X4 '69 GMC Custom Camper

03-13-2007, 01:30 AM	#4
RACINJASON22 GEARHEAD Join Date: Jan 2007 Location: CENTRAL,PA Posts: 2,284	Re: Has anyone made... Thats the curve I was thinking of....hmm....I guess I did pay attention in school alittle. Thanx FLEET&@ for the link to that software. RJ22 Attached Images __________________ 72 SWB 2WD MY PROJECT 72 LWB 4X4 FUTURE PROJECT SUBSCRIBE HEREBOARD VENDORS HERE NORWOOD MEET SURVIVOR!

03-13-2007, 01:53 AM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Has anyone made... it's alot easier to buy them from speedway motors and trim to length and for the pipe diameter __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-13-2007, 12:10 PM	#7
Spray-Bomb Texas Big Wig Join Date: Jan 2007 Location: Mineola, Texas Posts: 5,620	Re: Has anyone made... Thanks everyone The reason I want to build them in the first place is that I don't have much money at the moment I'll post a thread whif (when / if) I build em Thanks, Matt __________________ Just not low enough... ----------------------------- Sinister Killer



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