Newbie with a few questions

« **on:** December 14, 2007, 10:51:34 AM »

Hi all name is Mark and have been a lurker fo a little while now. You all sound like a great bunch, quite funny also. Just didnt have anything to post. Anyhow I have a 1976 Nordic jet boat 19'. Has a mild 460 ford and a berk jet with hyd place diverter. I have a intake grate from Jim Guthrie racing. The question I have is about putting a splitbowl, droop, and rideplate on and what might the benefits be and if it would be worth it. I also had heard that the bowl I have now is better than a split bowl, true? Any help would be great Thanks

« **Reply #1 on:** December 14, 2007, 11:20:11 AM »

good to here from you.....there is a really great group of people in here to answer any jetboat questions.
first of all we are going to need to know what model jet you have (there are ### stamped on a aluminum plate) on it, berkeley had made a few different ones and im sure we can answer your questions......

« **Reply #2 on:** December 14, 2007, 12:33:28 PM »

Wow someone else with a Nordic Bubble. I have a 454, Alum heads, roller cam..etc. I have a 77. I have a spit bowl JG berk with a manual diverter, shoe, ride plate and intake grate (Dominator B imp. with UWR). I just got it together this fall so I did not have much tuning of the ride plate yet. I do not have a droop. There are some that say a droop does not work good on this hull, others say try it and note the change if any. I have GPS'd at 73MPH @ 6000 RPMS.(loaded fuel, fat passenger and big driver..me). I like this hull cause full stringers and pretty straight as well.
T.J.
www.tjsperformance.com

« **Reply #3 on:** December 14, 2007, 01:34:41 PM »

My buddy had a 76 Nordic with an outboard. Lot's of good times on that boat while we were in highschool. We'd pile 8 people on that sucker and she'd still do 45. With 2 of us in it she was screaming around in the 70's. I know a totally different animal..... That was a great boat while he had it.

« **Reply #4 on:** December 14, 2007, 02:06:34 PM »

I'm assuming he has a JC pump, since someone told him that the bowl he has now is better than a split bowl.

However...supposedly an American Turbine extruded split bowl flows better than anything out there...and with a split bowl you can droop and wedge it, which will allow you to really change the handling characteristics of the boat.

« **Reply #5 on:** December 14, 2007, 02:09:36 PM »

NOT TO TAKE AWAY FROM 76NORDIC'S QUESTION BUT ISN'T IT POSSIBLE TO CONVERT A JC TO A SPLIT BOWL?

« **Reply #6 on:** December 14, 2007, 04:01:27 PM »

A quote from Dave at Aggressor...

Quote from: Dave@aggressor Je5ts on December 14, 2007, 10:53:33 AM

the 11 Vane Bowl the added 54 CFM it wants. Remember our 9 Vane is 52 CFM (non Cavatational) above all others and we just completed up-dating it to withstand higher pressures and force. The same is planned for the 11 Vane. Anyway thats enough about what can be until we demonstrate it in a monster way at a Drag Race in public its all marketing BS till then.

The 9 vane is Aggressor's standard bowl, outflowing all competition by 54 CFM...

« **Reply #7 on:** December 14, 2007, 04:08:35 PM »

Quote from: COORS HEAVY on December 14, 2007, 02:09:36 PM

NOT TO TAKE AWAY FROM 76NORDIC'S QUESTION BUT ISN'T IT POSSIBLE TO CONVERT A JC TO A SPLIT BOWL?

Yes there is. Chop cut and weld

« **Reply #8 on:** December 14, 2007, 06:03:27 PM »

Quote from: 76NORDIC on December 14, 2007, 10:51:34 AM

Hi all name is Mark and have been a lurker fo a little while now. You all sound like a great bunch, quite funny also. Just didnt have anything to post. Anyhow I have a 1976 Nordic jet boat 19'. Has a mild 460 ford and a berk jet with hyd place diverter. I have a intake grate from Jim Guthrie racing. The question I have is about putting a splitbowl, droop, and rideplate on and what might the benefits be and if it would be worth it. I also had heard that the bowl I have now is better than a split bowl, true? Any help would be great Thanks

If your not lookin at a time slip then my recommendation would be to just put a diverter on you JC bowl since the vains in the C bowl go further down , closer to the nozzle . Less turbulence basically . The diverter will give you some added adjustability and maybe some MPH . Speed in a split bowl isnt gained in the bowl . Its gained in the adjustment of the bolt-ons such as diffrent snoots , wedges . Not to mention all the tuning that will be required upon installation of all this new equipment . Anyways , thats my .02

-beerjet-

« **Reply #9 on:** December 14, 2007, 08:59:58 PM »

I do have a diverter and had the pump gone thru to a stage 2, so am I to understand that if im not into full blown racin I dont need a ride plate or droop, and just leave it the way it is? I have a few buddies that have jet boats and we have our little friendly rivaleries at the river Racin each other on occasion. Just tryin to one up them while its cold time here in sunny socal. Been a Park Moabi guy since the late 70's. My pump is a 12JC with an A impeller. The last time I gps the boat I was at 65 mph @ about 4300 rpm and I know I was way off on the timing had it set at about 19. So anywhose I probably got ya all spinin with my back and forthness. just tryin to get a clue as to whats up. Thanks all Mark

« **Reply #10 on:** December 14, 2007, 11:28:55 PM »

Quote from: 76NORDIC on December 14, 2007, 08:59:58 PM

I do have a diverter and had the pump gone thru to a stage 2, so am I to understand that if im not into full blown racin I dont need a ride plate or droop, and just leave it the way it is? I have a few buddies that have jet boats and we have our little friendly rivaleries at the river Racin each other on occasion. Just tryin to one up them while its cold time here in sunny socal. Been a Park Moabi guy since the late 70's. My pump is a 12JC with an A impeller. The last time I gps the boat I was at 65 mph @ about 4300 rpm and I know I was way off on the timing had it set at about 19. So anywhose I probably got ya all spinin with my back and forthness. just tryin to get a clue as to whats up. Thanks all Mark

65 MPH sounds pretty good for 4300 RPM . My opinion has always been that all the bolt on goodies will get you more MPH. As to how much , well who knows .

we'll say for the sake of arguement :
Used brekeley split bowl $300 (before someone goes in and cleans it up)
Used Droop snoot $150
Wedges $60

Once you dial it all in (and this is just a stab in the dark) 3 mph , could be more , could be less , could not gain you anything , who knows . Anyways , that was just in purchases dont forget some new gaskets and seal when you stick the new bowl on there and not to mention you have to pay someone to make sure it's gonna fit . Its a toss up but there is alot of potential with all this hardware. They dont make this shit for no reason .

As for a ride plate , another great piece of tuning hardware. As far as I know is great for adding stability at high speed and with diffrent shoes could also help in some more MPH . All this stuff has infinite adjustability . I just hope I'm not leading you down the wrong path and hopefully someone will chime in with some added info or just straighten us out on all this .

Motor wise , how are you lookin . Logs , headers , Manifold , carb , ignition . With your numbers , it looks like pump might not be whats holding you up .

-beerjet-

« **Reply #11 on:** December 15, 2007, 10:42:52 AM »

Quote from: 76NORDIC on December 14, 2007, 08:59:58 PM

I do have a diverter and had the pump gone thru to a stage 2, so am I to understand that if im not into full blown racin I dont need a ride plate or droop, and just leave it the way it is? I have a few buddies that have jet boats and we have our little friendly rivaleries at the river Racin each other on occasion. Just tryin to one up them while its cold time here in sunny socal. Been a Park Moabi guy since the late 70's. My pump is a 12JC with an A impeller. The last time I gps the boat I was at 65 mph @ about 4300 rpm and I know I was way off on the timing had it set at about 19. So anywhose I probably got ya all spinin with my back and forthness. just tryin to get a clue as to whats up. Thanks all Mark

Not sure what kinda hull you have, but you're pretty damn close to the mark with 65@4300 RPM (mine did 65 @ 4500 with a Legend A impeller).

Friendly rivalries and river racin'? No wonder they're tellin' ya to keep it the way it is! They don't want ya passin' 'em up! lol

« **Reply #12 on:** December 15, 2007, 11:58:41 AM »

lol too funny Jet. Engine wise a 10 1/2 to 1 460 the heads ported and polished, an American cam with 507 lift and 276 duration, an Edelbrock Performer 460 manifold and a Holley 650 DP converted to a 780. Am running an MSD marine all in 1 distributor (no box) The exhaust im not sure what brand are not headers or logs and thru the transom, and like I said before I was runnning the timing at about 18 or 19 when I have heard some are running at 28 to 30 Thanks all for your input. Hey TJ is your boat the one I saw when talkin about the splash guard? If so your 77 looks EXACTLY like my 76. I'm lookin for a splash guard also

« **Reply #13 on:** December 15, 2007, 12:01:20 PM »

Quote from: 76NORDIC on December 15, 2007, 11:58:41 AM

lol too funny Jet. Engine wise a 10 1/2 to 1 460 the heads ported and polished, an American cam with 507 lift and 276 duration, an Edelbrock Performer 460 manifold and a Holley 650 DP converted to a 780. Am running an MSD marine all in 1 distributor (no box) The exhaust im not sure what brand are not headers or logs and thru the transom, and like I said before I was runnning the timing at about 18 or 19 when I have heard some are running at 28 to 30 Thanks all for your input. Hey TJ is your boat the one I saw when talkin about the splash guard? If so your 77 looks EXACTLY like my 76. I'm lookin for a splash guard also

Hey 76, PM me your phone number, or email it to jmwilder1@sbcglobal.net

« **Reply #14 on:** December 15, 2007, 01:11:57 PM »

Quote from: 76NORDIC on December 15, 2007, 11:58:41 AM

lol too funny Jet. Engine wise a 10 1/2 to 1 460 the heads ported and polished, an American cam with 507 lift and 276 duration, an Edelbrock Performer 460 manifold and a Holley 650 DP converted to a 780. Am running an MSD marine all in 1 distributor (no box) The exhaust im not sure what brand are not headers or logs and thru the transom, and like I said before I was runnning the timing at about 18 or 19 when I have heard some are running at 28 to 30 Thanks all for your input. Hey TJ is your boat the one I saw when talkin about the splash guard? If so your 77 looks EXACTLY like my 76. I'm lookin for a splash guard also

I think you need to let the 460 breath a little better. Especially if your tryin out run your boys. 850dp and I'm guessing some through transome headers . Maybe a ford guy will chime in on a good tune up for your motor .

-beerjet-

« **Reply #15 on:** December 15, 2007, 01:31:12 PM »

Quote from: 76NORDIC on December 15, 2007, 11:58:41 AM

lol too funny Jet. Engine wise a 10 1/2 to 1 460 the heads ported and polished, an American cam with 507 lift and 276 duration, an Edelbrock Performer 460 manifold and a Holley 650 DP converted to a 780. Am running an MSD marine all in 1 distributor (no box) The exhaust im not sure what brand are not headers or logs and thru the transom, and like I said before I was runnning the timing at about 18 or 19 when I have heard some are running at 28 to 30 Thanks all for your input. Hey TJ is your boat the one I saw when talkin about the splash guard? If so your 77 looks EXACTLY like my 76. I'm lookin for a splash guard also

Hey 76 Nordic. Post a pic of your boat. Here is mine. My site has a lot of my buildup on it as well.

T.J.
www.tjsperformance.com

« **Reply #16 on:** December 15, 2007, 01:53:52 PM »

Heres another from a newbie...... how to post a pic??

« **Reply #17 on:** December 15, 2007, 01:56:04 PM »

Quote from: 76NORDIC on December 15, 2007, 11:58:41 AM

lol too funny Jet. Engine wise a 10 1/2 to 1 460 the heads ported and polished, an American cam with 507 lift and 276 duration, an Edelbrock Performer 460 manifold and a Holley 650 DP converted to a 780. Am running an MSD marine all in 1 distributor (no box) The exhaust im not sure what brand are not headers or logs and thru the transom, and like I said before I was runnning the timing at about 18 or 19 when I have heard some are running at 28 to 30 Thanks all for your input. Hey TJ is your boat the one I saw when talkin about the splash guard? If so your 77 looks EXACTLY like my 76. I'm lookin for a splash guard also

the timing is 18/19 at idle? because that dizzy should have 22 in it so your idle timing would have to be about 3*

or are you18 at idle? just tying to get some clairity

« **Reply #18 on:** December 15, 2007, 02:04:18 PM »

76NORDIC...check your PM's (private messages).

« **Reply #19 on:** December 15, 2007, 03:23:01 PM »

Hey Jet did so and replied Need some help to post a pic of my boat tho

« **Reply #20 on:** December 15, 2007, 04:57:55 PM »

My pics are linked from my server on my site.
T.J.
www.tjsperformance.com

« **Reply #21 on:** December 15, 2007, 05:11:18 PM »

Ralph im at 19 at idle on the trailer with water runnin thru it

« **Reply #22 on:** December 15, 2007, 05:25:29 PM »

here it is

« **Reply #23 on:** December 15, 2007, 05:25:57 PM »

Here is my boat

« **Reply #24 on:** December 15, 2007, 06:06:54 PM »

Nice boat Jet too bad it has a chevy in it, oh well to each their own.....

76NORDIC

CHROMEY

TJS Nordic

UNDONE

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COORS HEAVY

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pw_Tony

beerjet

76NORDIC

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Ralph Brunt

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