SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: 75Hustler on May 22, 2012, 07:26:42 PM

Title: Exhaust Question
Post by: 75Hustler on May 22, 2012, 07:26:42 PM
Hi guys, so my exhaust runs thrue transom under my swim step below the water line and im wondering if its possible to move it above the swim step?

Can i just cap the old holes and cut out new ones about 8 inches higher then run like an elbow from the water logs? If this is possible where could i get the block offs and elbows?

Thanks
Title: Re: Exhaust Question
Post by: GT Jets on May 22, 2012, 07:39:30 PM
Hi guys, so my exhaust runs thrue transom under my swim step below the water line and im wondering if its possible to move it above the swim step?

Can i just cap the old holes and cut out new ones about 8 inches higher then run like an elbow from the water logs? If this is possible where could i get the block offs and elbows?

Thanks

Why would anyone want to do this?
Title: Re: Exhaust Question
Post by: 75Hustler on May 22, 2012, 07:49:34 PM
The exhaust is very quite and im looking for a bit more sound. My buddy's is above the swim step and it sounds great.

Just want to hear the exhaust :)
Title: Re: Exhaust Question
Post by: GT Jets on May 22, 2012, 08:34:17 PM
The exhaust is very quite and im looking for a bit more sound. My buddy's is above the swim step and it sounds great.

Just want to hear the exhaust :)

It will only change at idle and it's a buttload of work... :screwy:

With your exhaust system (sound like logs and risers) you will be filling the engine with water unless you get tall risers (outlet above the inlet) have not seen any in decades...

What motor do you have?

Title: Re: Exhaust Question
Post by: 75Hustler on May 22, 2012, 08:44:28 PM
It will only change at idle and it's a buttload of work... :screwy:

With your exhaust system (sound like logs and risers) you will be filling the engine with water unless you get tall risers (outlet above the inlet) have not seen any in decades...

What motor do you have?

Its an olds 455 with the harden water logs. If its a pain and wont change much then im good whith what's there lol spent enough time on the dry dock ;)
Title: Re: Exhaust Question
Post by: GT Jets on May 22, 2012, 08:53:36 PM
Its an olds 455 with the harden water logs. If its a pain and wont change much then im good whith what's there lol spent enough time on the dry dock ;)

IMHO good call LOL   ;D
Title: Re: Exhaust Question
Post by: Your Mom on May 23, 2012, 08:49:10 AM
What size snail exhaust do you have? If its a step down, you could remove the 3" flange and port it so you can have a 3 1/2" and change out your tips to SS. Should get a tad more flow...
Title: Re: Exhaust Question
Post by: ka0tyk on May 23, 2012, 09:41:57 AM
mr nordic454 didnt do it with logs but he did move his exhaust to on top of the swim step...

(https://www.socaljetboats.com/index.php?action=dlattach;topic=13264.0;attach=47680;image)

just sayin its not IMPOSSIBLE...
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