496 ho ?
 

so i thought i was doing good by adding an air vent to the engine compartment, the cutout is in a recess in the center of the back seat which is directly in front of the throttle body, unfortunately as a side effect the amount of sucking noise above 2k is rediculous, can barely hear the exhaust, wife is not sure of it, she'd sooner hear the exhaust, i told her the only fix now is some headers:evilb:, can anything be done to quiet it down without hurting the flow? i'm pretty sure i already know the answer

You could make an intake tube that relocates the flame arrestor... But that would most likely reduce air flow........ I would say deal with it or close up the vent hole you created.

Sucking noise is good !:evilb: Balanced with exhaust note , even better !:daz::daz:

Some people haven't heard those noises in years! :hijack:

i'm definately not complaining, it almost sounds supercharged with the whistle, i think it sounds awesome, just doing some reconisence in case the wife starts *****n, i think making the exhaust louder is the only fix here:poopoo:, happy wife happy life!!

Headers aren't going to hide the sucking or whistle sound... They will increase the sound level behind the boat, but they wont increase the sound in the engine compartment, unless you have a terrible header leak.....

Did it improve performance? If not, cover it back up from the inside, maybe with a piece of starboard affixed with wing nuts. That way you can remove it when you want to, but the noise is gone for most boating.

You could have it worse... My 496 water pump squeaks... Can't hear it with the engine hatch down, but I can only imagine what it sounds like at 4500 rpm.....

sucking sound lol. Reminds me of this commercial

http://www.youtube.com/watch?v=AuoNtFUdnn4

thats what i was thinking, i can't say it did anything for performance but just the thought of getting more fresh cooler air in these suffocation boxes is enough for me

I know exactly the noise you're talking about. I was amazed how loud the sucking noise was with my hatch open! With two of those suckers (literally), it is almost annoying just at idle.

You may be missing a little filter that goes into the side of the throttle body, is about 1/2" x 3/4" on the port side under the flame arrestor. looks like a small sponge. when I had mine out it whistled loud

i actually checked that, its located about 11 o'clock looking at the throttle body, its there but looks like there could be a second one? only one there now

Maybe instead a straight hole put some sort of deflector that will allow air to pass but will make sound will bounce off of it. Sound travels in a straight line where air can go around things.

Exactly right, a baffle is called for.

http://www.boats.net/parts/search/Me...ift/parts.html

Here's a ipc breakdown to make sure your filter is in the right spot. or just may need to be replaced

thanks for the advice guys, i think i'm going with the deflector idea, we will see how that works