Mufflers or Turn Downs

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07-07-2008 | 05:22 PM

#11

NEVERSATISFIED

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From: LANCASTER, OHIO

I am leaning towards the turn down tips but concerned while sitting at the dock or at the beach, can water from waves or boat traffic surge up the tips and into the motors?

07-08-2008 | 03:08 PM

#12

NEVERSATISFIED

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From: LANCASTER, OHIO

What mufflers are most used and how many DB. sound reduction can I expect along with horsepower loss?

07-14-2008 | 08:33 PM

#13

NEVERSATISFIED

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From: LANCASTER, OHIO

What mufflers work with 600 hp. and how many db. sound reduction could I expect?

07-16-2008 | 01:12 PM

#14

NEVERSATISFIED

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From: LANCASTER, OHIO

Does anyone have a contact number for GGB?
Thanks Steve

07-17-2008 | 12:04 AM

#15

1CE

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kooool

Quote:

Originally Posted by RMPRam

Here is how I "solved" that problem. The exhaust pipes are 4-5" under water @ idle, thus killing most of the "noise" and all 4 are between the drives and pointing downward , sending the exhaust rearward, not out to the side. I have not done a db test on this system, but I know it is a lot quieter than when I had Gaffrig air-mufflers, with built in turndowns, that leaked ex. around the butterfly's. The motors are 572" PSI supercharged, 1100hp. Hope this helps.

nice exhaust set up/ever try spinning those wheels inward/?

07-17-2008 | 07:33 AM

#16

Nordicflame

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From: Layton, Utah

Quote:

Originally Posted by NEVERSATISFIED

Does anyone have a contact number for GGB?
Thanks Steve

888-898-9902 / ask for Gram
They are currently testing there new release!

07-17-2008 | 07:35 AM

#17

wellcrafted

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From: Seneca Lake

ggb mufflers

Quote:

Originally Posted by NEVERSATISFIED

Does anyone have a contact number for GGB?
Thanks Steve

I had ggb's on my last boat they worked great. no rpm loss Talked to him last week hes not building boat mufflers right now (wouldnt say why ) only for atv's, did say next year would be back in boat mufflers business .

wellcrafted

07-17-2008 | 07:38 AM

#18

Nordicflame

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From: Layton, Utah

Quote:

Originally Posted by wellcrafted

Interesting.. I talked with Gram last week as well and he said Fall release???

Maybe the testing did not go well. May have to look to the Zoomers

07-17-2008 | 07:44 AM

#19

RMPRam

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From: Santa Barbara CA. USA

Reply to 1CE. I tried inward only once, several years ago. It did not seem to make any difference, but the handling around the docks was a struggle. I'm planning on switching the drives in a week, to turn the props inward, to give it another shot. I will report back as to what my findings are.