SoCal Jet Boats
Tech Talk => Jet Pumps => Topic started by: riverrat4life on March 08, 2014, 07:30:47 PM
-
Im not sure if this has been posted before...if so, sorry but/and please redirect me to the answers...
If you guys could help clear up a couple questions please... how many different berk pumps are out there, how are they classified and what makes them different? what kind of upgrades/modifications can a person do or have done to them that not gonna break my wallet? and what kind of accessories can be used on them( rudder, different size nozzles, etc)..
The float i have in mind is a 75-77 rogers hull
Im going to build a mild 468 good for 50-5500 all day long( im going to post another topic in the engines forum)
Im looking to build a fun boat, id like carry my family(3 total for now, 5 later down the road), pull a tuber every now and then.. basically be able to cruise around all day long at around 60+/- 10mph.
this is all a learning process for me and all the input is always greatly appreciated!! Thanks in advance!!
-
Most common is the JC
Throw a diverter on it and it should be good to do 95% of your boating needs.
JB (being the earlier model split bowl) and JG
Having more adjustability with wedges, droops.
JF and JE Which are "insert pumps" and the F being the more adaptable one of the 2 .
-beerjet-
-
JE and JF ARE NOT "set back" PUMPS....
I've been seeing that term used on these pumps at that is not what they are.
-beerjet-
-
If you are looking at a Rogers, it'll have a JB .
They always do.
At least that's how were built.
-beerjet-
-
insert pumps? as in are they the types of pumps that people speak of when building a combo from a split bowl? i hear of early and late split bowls.. :screwy:
thanks you so far omar.. :)
-
insert pumps? as in are they the types of pumps that people speak of when building a combo from a split bowl? i hear of early and late split bowls.. :screwy:
thanks you so far omar.. :)
Insert pumps look like a set back pump where the hand hole cover is out of the boat....but in reality are glued and bolted to the hull on the outside.
More common on newer boats.
-beerjet-
-
hmm..now im stumped. so are you saying they actually put the intake/pump housing behind the transom nowadays? im having difficulty picturing this..lol
-
http://www.berkeleyjet.com/
The E and F pumps have the intake incorporated into the suction housing.
Not great performers
-beerjet-
-
This is all pointless and a moot point if you are looking at a Rogers though.
-beerjet-
-
Sick with the jb then...i was reading about something referring to the pros/cons of machining the the veins on the bowl or swapping it out with a denominator bowl?.. the dom bowl is said to be "go to go" vs a modified stock bowl..
Sent from my SCH-I535 using SoCal Jet Boats mobile app
-
Dominator* damn autospell...
Sent from my SCH-I535 using SoCal Jet Boats mobile app
-
I went from a C bowl to a modified split C bowl then a aggressor 9 vain on my berk. The 9 seemed to help out of the hole and better flow/rpm at cruising both splits with stuffers. Its also bout 2" ( the 9) longer and with my straight snoot, this allowed more leverage as it brought back the thrust even further. Adding the "bolt on" plate and shoe was a big help to.
-
Is there no way to put a droop on a c bowl and if not what's involved switching to a jg so I can .I have a place diverter now so I imagine that's gotta swap out to a different diverter it doesn't look like it bolts on a jg bowl
Sent from my SCH-I545 using SoCal Jet Boats mobile app
-
Sorry to jump in. I have a hallett with a JR jet. What is that built off of. It works really great.
Sent from my iPad using SoCal Jet Boats
-
Sorry to jump in. I have a hallett with a JR jet. What is that built off of. It works really great.
Sent from my iPad using SoCal Jet Boats
I was gonna mention the JR but they RARELY pop up.
The JR is Berkeleys split bowl in full "race" trim.
AQ shaft, stainless impeller, full droop, race nozzle and ram horn reverse gate.
And yes, they do work great.
I want to say there was one more split bowl pump, post JG ..... the JI.
Maybe the Berkley site or someone else can chime in on details that changed between each pump.
I'm pretty sure I've killed off the pesky brain cells that retained most of important information.
-beerjet-
-
Thanks
Sent from my iPad using SoCal Jet Boats
-
Is there no way to put a droop on a c bowl and if not what's involved switching to a jg so I can .I have a place diverter now so I imagine that's gotta swap out to a different diverter it doesn't look like it bolts on a jg bowl
Sent from my SCH-I545 using SoCal Jet Boats mobile app
Take your diverter, bowl and hardware off. Add new bowl/gaskets after measurements taken to make sure bowl will not touch impeller...You can add the droop, mini or straight to bowl and diverter to the droop, mini or straight. If you dont want to add the droop...ect but want the bowl then you need the bowl to nozzle adapter to add the diverter. Once installed if droop..ect you might have to add a steer tube/cable extension if you cant get the steer cable to adjust to it. Same with your forward/reverse/diverter cables will need to be lengthened. If replacing the stock C with a modified split C or G, chances are they should bolt right up without any mods.
-
Take your diverter, bowl and hardware off. Add new bowl/gaskets after measurements taken to make sure bowl will not touch impeller...You can add the droop, mini or straight to bowl and diverter to the droop, mini or straight. If you dont want to add the droop...ect but want the bowl then you need the bowl to nozzle adapter to add the diverter. Once installed if droop..ect you might have to add a steer tube/cable extension if you cant get the steer cable to adjust to it. Same with your forward/reverse/diverter cables will need to be lengthened. If replacing the stock C with a modified split C or G, chances are they should bolt right up without any mods.
Thanks that's the 411 I was looking for, I really want to add a droop
Sent from my SM-P600 using SoCal Jet Boats mobile app