There wil be NO competion from any other boat out there. Top speed will be greater than he 87.5 achived by the GPR from Riva. The only issue is handeling on the turns. For those of u that went to the World Finals, if you looked closely to MC's 15F, you can see that he was having a hand-full on the turns. There will be a new improve ride plate for that ski in late 2005 from the Socialist Republic of Kalifornia. This will help control this monster on the turns. As per the kit it self, since RIVA now has the exclusive with VORTEX, it will be expensive. As to the RIVA claim that some people may not be able to handle the power of the SC.. well.. if u pay more $$$ they will sell it to you. There was a 15F at the WF that had over 400HP, on the new modified series.
The 15F will not win all of the races, but for sure the followings:
Close Course
Off-Shore
Endurance
Top Speed.
It will problably loose on the rest of the races.
No more GPR any-thing. They are HISTORY.
I know, I have 2 heavely modified. 2001 GPR 1396, with everything that u can put on it, and a GPR 1300 also heavely modified. ANY BUYERS???
Four Stroke is here and that it it.
Sorry guys but that is reality

We're all aware of the reality of the sport. Legislation, regulation and the advancement of technology are all pushing our sport in its current direction. But that's not a bad thing, as you've made it out to be.

quote:

---

As per the kit it self, since RIVA now has the exclusive with VORTEX, it will be expensive.

...if u pay more $$$ they will sell it to you.

---

What is the basis of your opinion's?

quote:

---

The 15F will not win all of the races, but for sure the followings:
Close Course
Off-Shore
Endurance
Top Speed.

---

There aren't too many other races that I'm aware of.

I'm not sure what you're trying to accomplish by posting the way you did. It isn't very positive and doesn't follow the spirit of our forums very well.....

I never said that it was a bad course that the industry is taking becuase of the regulations that are being impose on all of us. It is in reality a better way to ride. The 15F that Kawasaki makes is a great ski. It will certantly out live all two stroke engines. Sure it is more costly, but in the long run it will be more cost effective to own. The problems that I see is none other that the weight of the new ski are way up. As for my comment on the cost of the SC. Well the cost of the SC for the FX is over Seven Thousand US Dollars, and that is a lot of money. Although I will agree that compare to the same performace from a two strke engine, it will more with alot less reliability. I own four skies. All of the parts put on three of them came from you. Factory Pipes included.
Question..
Can you make the FX HO engine to put out the same horse power that the 15F will have?

quote:

---

Originally posted by RIVA CREW:
We're all aware of the reality of the sport. Legislation, regulation and the advancement of technology are all pushing our sport in its current direction. But that's not a bad thing, as you've made it out to be.

quote:

---

As per the kit it self, since RIVA now has the exclusive with VORTEX, it will be expensive.

...if u pay more $$$ they will sell it to you.

---

What is the basis of your opinion's?

quote:

---

The 15F will not win all of the races, but for sure the followings:
Close Course
Off-Shore
Endurance
Top Speed.

---

There aren't too many other races that I'm aware of.

I'm not sure what you're trying to accomplish by posting the way you did. It isn't very positive and doesn't follow the spirit of our forums very well.....

---

This message has been edited. Last edited by: r7304,

quote:

---

Originally posted by r7304:
I never said that it was a bad course that the industry is taking becuase of the regulations that are being impose on all of us. It is in reality a better way to ride. The 15F that Kawasaki makes is a great ski. It will certantly out live all two stroke engines. Sure it is more costly, but in the long run it will be more cost effective to own. The problems that I see is none other that the weight of the new ski are way up. As for my comment on the cost of the SC. Well the cost of the SC for the FX is over Seven Thousand US Dollars, and that is a lot of money. Although I will agree that compare to the same performace from a two strke engine, it will more with alot less reliability. I own four skies. All of the parts put on three of them came from you. Factory Pipes included.
Question..
Can you make the FX HO engine to put out the same horse power that the 15F will have?
[QUOTE]Originally posted by RIVA CREW:
We're all aware of the reality of the sport. Legislation, regulation and the advancement of technology are all pushing our sport in its current direction. But that's not a bad thing, as you've made it out to be.



What is the basis of your opinion's?

[QUOTE]The 15F will not win all of the races, but for sure the followings:
Close Course
Off-Shore
Endurance
Top Speed.

---

There aren't too many other races that I'm aware of.

Did I type something that is not true? Let me know what is it.

In Los Angeles California there is a 15F with an after maket blower on it. The ski has run just a tac over 87mph. It does not have 400HP, it does have an over pitch prop. It is not for close course since it takes a bit longer to get to speed, but with more power and the right pump, 90 + may be real. The engine was build by a motorcycle dragter mechanic. As for the closed course comments.... Show me GPR that can run with the modified 15F or the super stock 15F. If it existed we would have a different world champion. This is not the first year that the Kawis rule that event. In reference to the top speed,.. well you know better than I. Endurance race. Well with a ski of that size and power., Who and what can run with it?. And if MAC run the LongBeach to Catalina and back race next year on one of those monsters, we may see a sub 60 minutes time.

This message has been edited. Last edited by: r7304,

quote:

---

Originally posted by r7304:

quote:

---

[QUOTE]The 15F will not win all of the races, but for sure the followings:
Close Course
Off-Shore
Endurance
Top Speed.

---

Show me GPR that can run with the modified 15F or the super stock 15F. If it existed we would have a different world champion. .

---

he who has the deepest pockets wins the races. I am not taking anything away from Mac, Dustin,Minoru or any of the other factory kawi riders but when you have factory backing you can dump R&D money into a boat all day to make it fast

and 2 out of the top 5 finishers in pro 1200 were gpr's and there were some XPL's mixed in as well

the competition is out there, it's just that the competition doesn't have a big enough bank roll

just out of curiosity who is the manufacturer of the blower that is on that 15F in los angeles

as far as i know unless you get one that was developed my team kawi there isn't a blower kit available.

BTW Vortex is a spray on bedliner comapny, Vortech is the supercharger company

and they were using a V5-KQ trime supercharger

DTF_Dan, according to my buddy Malvin, the people from Pro-charger company one of vortech main competitors in the S/C business in the U.S. have already their own S/C model that share exactly the same size and dimensions of the vortech V5 S/C that Riva and Kawi use for their S/C kit, he told me this after taking a close look at Mac's factory Kawi 330hp S/C race boat at the last SEMA show at Vegas, (he took more than 20 pics at close range of the S/C set-up) by the way he offered to build for me a custom made S/C intercooled kit for my 4 stroke 15F using the pro-charger S/C instead of the vortech.

This message has been edited. Last edited by: Gpr/STX-15F/RXT,

quote:

---

Originally posted by GprSTX-15F:
DTF_Dan, according to my buddy Malvin, the people from Pro-charger S/C company that is one of vortech main competitors in the S/C bussines in the U.S. have already their own S/C model that share exactly the same size and dimensions of the vortech V5 S/C that Riva and Kawi use for their S/C kit, he told me this after taking a close look at Mac, factory Kawi 330hp race boat S/C at the last SEMA show at Vegas, (he took more than 20 pics at close range of the S/C set-up) by the way we offered to build for me a custom made S/C intercooled kit for my 4 stroke 15F using the pro-charger S/C instead of the vortech.

---

i was at the show as well and had an up close look @ Mac's ski too. essentially it is possible for it to be down but finding a suitable spot for the intercooler would be a pain in the behind to get it significant airflow to make it efficient

Dan, are you involve in the force induction business?

quote:

---

Originally posted by GprSTX-15F:
Dan, are you involve in the force induction business?

---

i am in the performance products and mobile video business. i have dealt with forced induction in the past. I have owned two grand nationals, a lightning, and a turbocharger 99GT so i know a thing or two about intercooling, forced induction, volumetric efficiency of the intercooler and so on and so on

It's not as hard as it sounds. If you have the money anyone can set up one of these machines!!! The technolgy has been out for a while now in streetbikes, which is basically the same engine.

If only it were that easy.

If i can fab, fit, tune a t3 turbo on a hayabusa or zx-12 i can do it on a 15f.

Like i said it takes $$$$ and even more if you don’t have the knowledge/equipment to get the job done.

Hardest part about tuning a watercraft is there is not dynos available to the general public to pull your ski on and tune the motor to the correct A/F. Of coarse it could be done with a engine management system with data recording functions using a wide band 02 sensor...etc..etc. This would be alot slower approach and even more $$$

This is just from my experience.

A.J

Riva crew, I agree with board member efreak about this, if you have the knowledge, equipment, experience and money building a custom made S/C intercooled kit for the Kawi 15F it is NOT a big deal, in my particular case I have the luck to have about 200 meters from my house the most knowledgeable person in the force induction business here in our island, this guy was the first person in the world to build a custom made S/C intercooled kit for the Yamaha Raptor and Honda ATV'S, currently his latest project (also the first in the world) is a 04' Mitsubishi ralliart that comes from the manufacturer with a normal aspirated 2.4 mavic engine rated at 146 HP but later this same car was converted by him to a wild street driven turbocharged/intercooled beast rated at 446 HP @ 20 psi of boost on pump gas and at 506 HP @ 30 psi with race gas on a rear wheel chassis dyno, not so bad at all for a 4 cylinder engine don't you think?? as you can see R/C for guys like him building a S/C kit for the 15F would be like a "walk in the park" project

This message has been edited. Last edited by: Gpr/STX-15F/RXT,

when your sole business is to do forced induction then ys it would be a walk in the park but for comapnies like riva who encompasses a whole range of products and services it would take a little bit more time for them to produce a kit that not only looks good but performs as well


turbocharging is a little easier to do because you can bend pipes to make stuff fit. superchargin you have to cut, notch, make brackets, make sure pulley alignments are right, custom length serpentine belt system. the list goes on.

if i had my choice i would go turbo over supercharging for the power gains in the long run

but for quick instantaneous power gains an s/c is the way to go

for example

by simplychanging the upper and lower pullies, headers, exhaust, remapping the computer via predator flash tuner and putting a new cold air intake on, an 03/04 Ford Mustang Cobra will produce an extra 125-130 hp and will drop the 1/4 mile acceleration times by approximately 1-1.5 seconds

If its so easy to do, then why aren't you doing it?

You still think you can take a S/C and stick it on that boat and it will be bad like macs or closs....Trust me it wont do enough. And it wont be even close to what MAC had...

Kawi is a whole differant world....and the Only Factory Team and the a good Reason alot of people have left racing and not moving to pro class....

Next year unless someone flys off the boat or it breaks or missed bouy or something of that nature then odds are 9 to 1 a kawi will win with Rius more than likely in top 3...and the next two or three will be others that are known
to about top ten and thats it

And it's been that way since S/S has been added and The factory teams have droped out....

Yami has great boats and has been in the spot light as many times or more than kawi
It wont be long untill a new boat comes out from yami or who nows Honda if they stick around to start winning then back to kawi...

And besides most people who have high powered ski's are still not close to a top pros boat nore could handle the darn thing with out hurting them selves....

I say wait and see what happens ....things dont go from just 65 to 90 in one year....ok maybe one or two people might have enough cash to blow to make a boat run some passes at that speed but not likey...

It's funny the gpr's are almost at 90mph or about 5 off at 300cc's less and 220..+HP and about 10 grand less and only cost about $350 to rebuild if you do it your selve....Top only...

Sorry but next year is not the almighty year of the four stroke but 06 or 07 very well could be....