SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: beerjet on January 21, 2008, 05:17:43 PM

Title: Backwards or forwards
Post by: beerjet on January 21, 2008, 05:17:43 PM
The scoop that is . I heard that in some cases , facing forwards , they can cause a bit of terbulance (sp?) and negatively affect performance . Yes I know all the super fast drag guys run them forward . Not everyone is a super fast drag guy though .

-beerjet-
Title: Re: Backwards or forwards
Post by: Ema Non-Performance Marine - BANNED on January 21, 2008, 05:21:23 PM
Yes it can cause an over charge but it looks cooler !
As long as there are hole in the bottom or back of the scoop you would be fine, except if you get roosted. Then you will eather have very clean pistons tops or a hydro-locked engine.
Title: Re: Backwards or forwards
Post by: beerjet on January 21, 2008, 05:38:53 PM
Yes it can cause an over charge but it looks cooler !
As long as there are hole in the bottom or back of the scoop you would be fine, except if you get roosted. Then you will eather have very clean pistons tops or a hydro-locked engine.
Not nessicarily me but in general . I personally run mine backwards . As you know .

-beerjet-
Title: Re: Backwards or forwards
Post by: HDriderTH on January 21, 2008, 05:52:41 PM
I used to hate 'em on backwards, the first thing I did when i got my boat is turn the scoop around forward. After a while I just decided the lines fit the boat better backwards.
Title: Re: Backwards or forwards
Post by: MORBEER on January 21, 2008, 05:59:11 PM
tried mine both ways, no difference.
Title: Re: Backwards or forwards
Post by: hotrod56cars on January 21, 2008, 07:57:21 PM
Not nessicarily me but in general . I personally run mine backwards . As you know .

-beerjet-

But doesn't your scoop just end up sideways anyway?   :D
Title: Re: Backwards or forwards
Post by: Brad @ SCJB on January 21, 2008, 08:43:21 PM
in jet circle boat racin, i would perfer mine backwards to avoid getting water sucked down the carb in the event of getting roosted......depending on the scoop, i think they look cooler facing forward....

but isnt it a USCG mandated thing to have it race backwards? i remember reading that somewhere. not sure if its ever been enforced.
Title: Re: Backwards or forwards
Post by: flytime on January 21, 2008, 08:54:28 PM
Not sure about racing but I once heard the reason you face it backwards is so if you have a big back fire the flame shoots out the back of the boat instead of in the direction of who ever happens to be sitting in the back seat. I have a full engine cover so what the fuk do I know ;D
Title: Re: Backwards or forwards
Post by: gregb on January 21, 2008, 08:58:55 PM
My understanding was if it's facing forward it has to have a flame arrestor in it, if backwards it doesn't.
Title: Re: Backwards or forwards
Post by: 76 Bonneville on January 21, 2008, 09:08:53 PM
Not sure about racing but I once heard the reason you face it backwards is so if you have a big back fire the flame shoots out the back of the boat instead of in the direction of who ever happens to be sitting in the back seat. I have a full engine cover so what the fuk do I know ;D
[/quotBack in the day, we use to go to the river with a guy who had a real nice Southwind. Had the old school foward facing fiberglass scoop. Whenever he started it, we all leaned to the outside just incase of the backfire/flamethrower.
Title: Re: Backwards or forwards
Post by: GAWnCA on January 21, 2008, 09:41:07 PM
My understanding was if it's facing forward it has to have a flame arrestor in it, if backwards it doesn't.

A flame arrestor would be ok since the butterflies would hide it most of the time.
Title: Re: Backwards or forwards
Post by: hotrod56cars on January 21, 2008, 09:56:40 PM
A flame arrestor would be ok since the butterflies would hide it most of the time.

Correct me if I'm wrong, but I think Beerjet has little birdies flying around his head - not butterflies.   ;)
Title: Re: Backwards or forwards
Post by: Ema Non-Performance Marine - BANNED on January 21, 2008, 10:07:38 PM
Correct me if I'm wrong, but I think Beerjet has little birdies flying around his head - not butterflies.   ;)

I saw him using a Shotgun at Parker in April, Ducks !
I am just surprised he didn't have a dog with him or waders ! ;D
Title: Re: Backwards or forwards
Post by: hotrod56cars on January 21, 2008, 10:20:52 PM
I saw him using a Shotgun at Parker in April, Ducks ! ...

That's right, it is ducks.  ;)
Title: Re: Backwards or forwards
Post by: The Chaz on January 22, 2008, 03:25:40 PM
I was told by the lake patrol that legally you need a flame arrestor if the scoop faces forward in an uncovered engine bay.
Title: Re: Backwards or forwards
Post by: hotrod56cars on January 22, 2008, 05:49:15 PM
I was told by the lake patrol that legally you need a flame arrestor if the scoop faces forward in an uncovered engine bay.

Correct, USCG.
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