SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: quick olds on March 26, 2010, 11:50:35 AM

Title: How do i get more
Post by: quick olds on March 26, 2010, 11:50:35 AM: Out of my pump i am good with motors but the pumps are like rocket science to me its a 12 jc
Title: Re: How do i get more
Post by: mash on it on March 26, 2010, 03:22:51 PM: more info needed
-current speed
-RPM
-what motor (Olds?)
-hull length/weight
-what impeller?
-other pump mods?
-goals?
-pics, pics, pics...

( m.p.h x 7 = hp +/-)
Title: Re: How do i get more
Post by: quick olds on March 26, 2010, 03:41:29 PM: ok its a 455 bored .030 over tunnel ram dual 660 holleys crower cam bassets a cut impeller and the speeds prolable around 75 we had it on gps at 53 when i didnt have a fuel pump to hold the 660s so i was barely gettin 1/4 throttle be fore it stumbled on its self its running good now im just looking for more >:D
Title: Re: How do i get more
Post by: Marcsrollin on March 26, 2010, 06:17:03 PM: Quote from: mash on it on March 26, 2010, 03:22:51 PM

( m.p.h x 7 = hp +/-)

How do you figure?
Title: Re: How do i get more
Post by: Brad @ SCJB on March 26, 2010, 06:23:16 PM: Quote from: Marcsrollin on March 26, 2010, 06:17:03 PM
How do you figure?

according to my calculations its about 100hp off....or better yet...i should be doing almost 110mph

it takes a lot more then 100hp to go from 100mph to 107mph
Title: Re: How do i get more
Post by: Marcsrollin on March 26, 2010, 08:53:23 PM: Quote from: Brad @ SoCalJetBoats.com on March 26, 2010, 06:23:16 PM
according to my calculations its about 100hp off....or better yet...i should be doing almost 110mph

it takes a lot more then 100hp to go from 100mph to 107mph

According to what my last boat did it is about 230hp off. And i guarantee the new boat will be at least 15-20 mph faster with the exact same motor in it.
Title: Re: How do i get more
Post by: quick olds on March 27, 2010, 12:23:10 AM: Ok so with out the confusing math stuff what needs to be done to my pump 4 me to go faster lol
Title: Re: How do i get more
Post by: quick olds on March 27, 2010, 12:31:18 AM: Ok so with out the confusing math stuff what needs to be done to my pump 4 me to go faster lol
Title: Re: How do i get more
Post by: Ralph Brunt on March 27, 2010, 05:15:50 AM: Quote from: quick olds on March 27, 2010, 12:31:18 AM
Ok so with out the confusing math stuff what needs to be done to my pump 4 me to go faster lol
it may not be the pump, mite be the bottom of the hull, however, a good rebuild will do any tired pump wonders
Title: Re: How do i get more
Post by: quick olds on March 27, 2010, 09:30:36 AM: it was recently rebuilt and it runs better than before but im still looking for more lol "i wanna go fast"
Title: Re: How do i get more
Post by: jet boat performance on March 28, 2010, 08:16:29 PM: The Jet being "Right" and "tight " is critcal , but Horse power , "set up" and "tune up" will bring you speed Tom
Title: Re: How do i get more
Post by: quick olds on March 28, 2010, 08:23:19 PM: How do i know if its tight?
Title: Re: How do i get more
Post by: IRRebel on March 28, 2010, 09:53:36 PM: I'm confused. you were hitting 53 or 75?

53 with your set up, yeah, I'd go after the pump. 75? leave the focker alone!!! you're doing more than fine!

Ray
Title: Re: How do i get more
Post by: quick olds on March 29, 2010, 12:22:40 PM: It was 53 at about half throttle so im estimating 75 wide open its a 17.5 ft anthony
Title: Re: How do i get more
Post by: Baja and Bust on March 29, 2010, 03:25:57 PM: I don't understand. You know you want to go faster... But you still haven't even pushed it to W.O.T. to see where you're at? :D
Title: Re: How do i get more
Post by: quick olds on March 29, 2010, 03:42:21 PM: It got squirly after i fixed the bugs and could open it up and i just got a diverter on to fix that i just like to go fast lol really fast
Title: Re: How do i get more
Post by: jet boat performance on March 29, 2010, 08:31:03 PM: Quote from: quick olds on March 28, 2010, 08:23:19 PM
How do i know if its tight?

I've always heard "its gotta be tite to be good" ....................

but seriously IF its still in the boat and all is know , performance (rpms vs speed and performance is key) if its apart its all about measurement and inspection call Pm or post up if we can help Tom