Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   Formula (https://www.offshoreonly.com/forums/formula-36/)
-   -   Silent Thunder Modification. (https://www.offshoreonly.com/forums/formula/96140-silent-thunder-modification.html)

Formula Outlaw 02-10-2005 04:21 PM

Re: Silent Thunder Modification.
 

Originally Posted by MadMat
Having seen how much better outlaw looks, I plan on doing the same, barring any disasters. I think I might go for the 12 degree tips though.


If the "flange" is mounted on an angle from a "pipe" that is straight, it won't work. The flange will mate up to the transom on the bottom but be almost 3/4's of an inch off at the top. The pipe itself would have to be bent. I know, I got sent the "angled" flange tips by mistake the first time and it don't work. The hole is drilled at a 90 degree angle to the transom, in otherwords the hole is drilled at the same angle as my tips are showing because the transom itself is angled. Did that make sense????? :D

offthefront 02-11-2005 04:40 AM

Re: Silent Thunder Modification.
 

Originally Posted by CMG
Not an option on older style silent thunders, its all or nothing

not so fast men ....I been looking at mine and I think you could have the box redone to resemble the newer style platforms ..prob would not be cheap ....but...hell ...whats cheap these days ?

also thought about removing the rectangular flanges and installing 4" round tips ..plus modifing the baffles to get a more sound (noise) ...

CMG 02-11-2005 05:34 AM

Re: Silent Thunder Modification.
 
I agree not cheap at all. I doubt it would hold a person without the bottom support and would need a lot of work.

Formula Outlaw 02-11-2005 07:28 AM

Re: Silent Thunder Modification.
 
Yank it off, go with new tips, and put an Extreme Marine, or whatever platform on. It would be a lot easier, a lot cheaper, and lose a lot of "dead weight" over the props.

R-Don 02-11-2005 07:30 AM

Re: Silent Thunder Modification.
 
Spoken like a real Trooper. :drink:

Formula Outlaw 02-11-2005 06:57 PM

Re: Silent Thunder Modification.
 

Originally Posted by R-Don
Spoken like a real Trooper. :drink:


"Thank ya, Thank Ya Vary Much"....:D

offthefront 02-11-2005 07:40 PM

Re: Silent Thunder Modification.
 

Originally Posted by Formula Outlaw
Yank it off, go with new tips, and put an Extreme Marine, or whatever platform on. It would be a lot easier, a lot cheaper, and lose a lot of "dead weight" over the props.

Speakin of dead weight .....you open that beast up yet ?

f311fr1 02-11-2005 08:23 PM

Re: Silent Thunder Modification.
 
On my '89 F311 I bought 4 haws pipe's from West Marine, milled the flange down to about 1/4" high, made 4 oval aluminum backing plates, cut 4 holes under the bottom of the platform in line with the existing exhaust outlets and installed. Quite around the dock and let the blower motors ROAR when on plane.Quick, cheap fix that looks good as the hawse pipes were chrome over bronze.

Formula Outlaw 02-11-2005 08:23 PM

Re: Silent Thunder Modification.
 

Originally Posted by offthefront
Speakin of dead weight .....you open that beast up yet ?


Nope, been working all week. Figured on going out last Sunday to see what she'd do but couldn't get a coupler/adaptor for the trailer lights until Monday.

Maybe Sunday if it warms up. Right now it's getting rather chilly down here, imagine chilly up your way too. :drink:

mopower 02-11-2005 09:25 PM

Re: Silent Thunder Modification.
 

Originally Posted by offthefront
Speakin of dead weight .....?


AHA! weighed my new Canfield aluminum heads...37 lbs each
Weighed the old Merlin heads...80lbs each :eek: X4 = 172 lbs savings. Guess I can leave my Silent Thunder on for now. :cool: :D


All times are GMT -5. The time now is 05:51 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.