changing Volvo stock exhaust to through hull

Joined
Dec 2, 2010
Messages
14
Hi, I'm considering going to through hull on my old Volvo 260A (350 chevy)...

any comments on difficulty, noise increase, power increase?

Thanks!
:)
 

LAC_STS

Master Chief Petty Officer
Joined
Jul 1, 2010
Messages
895
Re: changing Volvo stock exhaust to through hull

I wan to do this also. From what I have read there is no performance gain, it will be louder, and the biggest problem is reversion (or maybe if you find your transom is rotted when you drill the holes).
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,148
Re: changing Volvo stock exhaust to through hull

Ayuh,... L_S pretty much has read the truth of it...
Dependin' on whatever manifolds, 'n risers you're starting with, they may need replacin', or not...

Definitely LOUDER, 'n No performance gains...
 

zbnutcase

Commander
Joined
Sep 19, 2009
Messages
2,055
Re: changing Volvo stock exhaust to through hull

Possibly even a performance loss, due to loss of scavenging effect.
 
Joined
Dec 2, 2010
Messages
14
Re: changing Volvo stock exhaust to through hull

Thanks for all your input...NOW you will know the extent of my knowledge.....or lack thereof.....:)

what is the "scavenging effect"?
 
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