- Location
- Fortwalton Beach Fl.
Is 57 to 60 mph possible?
650/X-2 650sx topspeed
- Thread starter anthonystempak
- Start date
- Location
- Land O Lakes FL
not with a 650..but anything is possible with money
Vumad
Super Hero, with a cape!
- Location
- St. Pete, FL
The 650 motor could possibly get you into the mid 50's with the right amount of work, but it'd be a silly investment. My all stock 650 with a carb and prop did 45. You'd be looking at a 650 motor, bored out, ported, high compression, ignition, pipe, carbs, all with a prop overpitched with no bottom end punch. When it was all said and done, you'd have a motor like no one else, that no one else would be impressed by, that costs way more than you could ever recover from the sale.
Now, assuming you are talking about the hull, anything is possible. 60MPH isn't a very unreasonable speed with the kind of power that is available. SXR with a pipe can easily pull 55. A 650sx with a 800 motor and pipe could probably pull close to that. The problem is that the design of the hull itself is going to be limiting. The 650SX hull becomes unstable over 50mph, will chine walk and sway, and more importantly, it will not handle the corners at those speeds. It might be able to go 60, but it probably would become so crazy at 55 that you'd fall before you reached 60. Having a ski that can go fast in a straight line, but slower than a better design with the same parts, that can't corner at all, is completely worthless. The only thing to be gained from that is bragging rights, where everyone you brag to will just roll their eyes, because they know fast in a straight line isn't "fast".
If you goal is to go fast in a straight line, buy a couch. They go faster than any of the stand ups. The GP1300R all stock can be bought used for less than a used SXR, but will beat it in a measurement of top speed.
Top speed is irrelevant. You need to concern yourself with acceleration and handling. When I race bouy's against SXRs with my Superjet, I don't loose in a straight line, I loose in hookup (rough water) and corners. The SXR is only a few MPH faster than my SJ, and due to it's extra weight, only has a slight advantage out of the corner. What makes the SXR so amazing is that it stays hooked up in rough water, and it can corner at amazing speeds.
So, don't concern yourself with a high top speed. Unless you can hold your ski wide open into and through the corner, it goes fast enough. If your 650sx does 45, but your corner at 25, your lack of speed is caused by a lack of handling, not a lack of power.
If you want to go faster. If you want to race. If you want to win. You need another hull. If price is an issue, get a 750sx hull. They are not the best, but are much better than the 650sx. The 750sx is not much more $$ than the 650sx, but comes with much improved handling and more power all stock. It also has a larger engine compartment that accomadates much larger pipes.
If you can afford it, you need a SXR hull. A hydrospace, trinity or other aftermarket hull would be best, but that's a huge step in price. A clean stock SXR can be had for $3-5000. They pull about 50-55 all stock. By simply adding a pipe, you can push 55-60. If you are set on 60, you can over-prop it and be there, but again, you will lose the race because top speed is often the least important factor. If you get a SXR, you can simply bolt on some stuff and get to the 60-65mph range with a reasonable investment. If you want to get crazy, just drop in a 1100 motor, and start working up from there, pushing into the 70+ mph range.
But in the end, all of those top speed numbers are completely pointless, because races are not won by going really fast in a straight line. Races are won by speeding up and not slowing down. Acceleration and handling wins races. Not top speed. Top speed is a factor, but so little of an amature race is done at WOT 55+ MPH, that top speed really is not a factor.
Now, assuming you are talking about the hull, anything is possible. 60MPH isn't a very unreasonable speed with the kind of power that is available. SXR with a pipe can easily pull 55. A 650sx with a 800 motor and pipe could probably pull close to that. The problem is that the design of the hull itself is going to be limiting. The 650SX hull becomes unstable over 50mph, will chine walk and sway, and more importantly, it will not handle the corners at those speeds. It might be able to go 60, but it probably would become so crazy at 55 that you'd fall before you reached 60. Having a ski that can go fast in a straight line, but slower than a better design with the same parts, that can't corner at all, is completely worthless. The only thing to be gained from that is bragging rights, where everyone you brag to will just roll their eyes, because they know fast in a straight line isn't "fast".
If you goal is to go fast in a straight line, buy a couch. They go faster than any of the stand ups. The GP1300R all stock can be bought used for less than a used SXR, but will beat it in a measurement of top speed.
Top speed is irrelevant. You need to concern yourself with acceleration and handling. When I race bouy's against SXRs with my Superjet, I don't loose in a straight line, I loose in hookup (rough water) and corners. The SXR is only a few MPH faster than my SJ, and due to it's extra weight, only has a slight advantage out of the corner. What makes the SXR so amazing is that it stays hooked up in rough water, and it can corner at amazing speeds.
So, don't concern yourself with a high top speed. Unless you can hold your ski wide open into and through the corner, it goes fast enough. If your 650sx does 45, but your corner at 25, your lack of speed is caused by a lack of handling, not a lack of power.
If you want to go faster. If you want to race. If you want to win. You need another hull. If price is an issue, get a 750sx hull. They are not the best, but are much better than the 650sx. The 750sx is not much more $$ than the 650sx, but comes with much improved handling and more power all stock. It also has a larger engine compartment that accomadates much larger pipes.
If you can afford it, you need a SXR hull. A hydrospace, trinity or other aftermarket hull would be best, but that's a huge step in price. A clean stock SXR can be had for $3-5000. They pull about 50-55 all stock. By simply adding a pipe, you can push 55-60. If you are set on 60, you can over-prop it and be there, but again, you will lose the race because top speed is often the least important factor. If you get a SXR, you can simply bolt on some stuff and get to the 60-65mph range with a reasonable investment. If you want to get crazy, just drop in a 1100 motor, and start working up from there, pushing into the 70+ mph range.
But in the end, all of those top speed numbers are completely pointless, because races are not won by going really fast in a straight line. Races are won by speeding up and not slowing down. Acceleration and handling wins races. Not top speed. Top speed is a factor, but so little of an amature race is done at WOT 55+ MPH, that top speed really is not a factor.
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Vumad
Super Hero, with a cape!
- Location
- St. Pete, FL
Here's a good example to help you out. It's dirt, but it applies.
I had a Warrior 350. My friends said I should buy aftermarket long travel A-arms and suspension, a CAM, big bore kit, etc. They said just a little here and there and I will have a fast quad.
I said no. Waste of money. I can set aside those same amounts, and when I have enough money, I can sell my warrior 350 and buy a race Quad. No no they said. Your warrior will be fast, just spend some money.
Well, I didn't listen. I sold my Warrior 350 for $1000, and bought my YFZ 450 for $3000. For $2000, I upgraded from 350cc to 449cc, from 19hp to 29hp, I gained 2 inches of width and 2 inches of travel, I went from 2 valves to 5, from 1 cam to 2, from a plain suspension to a fully adjustable suspention, from steel valves to titanium, from standard compression to high compression, from a tight cockpit with a wide seat, to a huge cockpit with a narrow seat. Not only that, but I haven't even begun to tap the potential of my new quad, which with an investment, will far exceed anything that warrior 350 could ever hope to be, all for a $2000 investment and giving up reverse, while maintaining an all stock reliability.
I loved my warrior, more than I can express, but sometimes you simply have to change platforms. If you want more than what your 650sx has to offer, don't waste money by throwing at it, just upgrade the platform. You will thank me.
I had a Warrior 350. My friends said I should buy aftermarket long travel A-arms and suspension, a CAM, big bore kit, etc. They said just a little here and there and I will have a fast quad.
I said no. Waste of money. I can set aside those same amounts, and when I have enough money, I can sell my warrior 350 and buy a race Quad. No no they said. Your warrior will be fast, just spend some money.
Well, I didn't listen. I sold my Warrior 350 for $1000, and bought my YFZ 450 for $3000. For $2000, I upgraded from 350cc to 449cc, from 19hp to 29hp, I gained 2 inches of width and 2 inches of travel, I went from 2 valves to 5, from 1 cam to 2, from a plain suspension to a fully adjustable suspention, from steel valves to titanium, from standard compression to high compression, from a tight cockpit with a wide seat, to a huge cockpit with a narrow seat. Not only that, but I haven't even begun to tap the potential of my new quad, which with an investment, will far exceed anything that warrior 350 could ever hope to be, all for a $2000 investment and giving up reverse, while maintaining an all stock reliability.
I loved my warrior, more than I can express, but sometimes you simply have to change platforms. If you want more than what your 650sx has to offer, don't waste money by throwing at it, just upgrade the platform. You will thank me.
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- Location
- Fortwalton Beach Fl.
Tough decision l ride in the ocean, and it gets so fn rough l just love my 650sx cause the tank weight makes it plow through the rough l'll just stick a ported 650 in it and see how it goes. I was just think about when its flat calm. I rode with a say 99 superjet and its so rough its more if you can hangon at times.
I was thinking a 750sx and factorylimited pipe cause l can get the 750 with mounts for the cdi
In the stock 650's spot for 300 but if its gonna overspeed the hull, l'll just run a 650 and save gas aswell
I was thinking a 750sx and factorylimited pipe cause l can get the 750 with mounts for the cdi
In the stock 650's spot for 300 but if its gonna overspeed the hull, l'll just run a 650 and save gas aswell
- Location
- Fortwalton Beach Fl.
I do want a sxr in the long run l think if l can get one for a decant price everything is a arm and leg price wise.
That's what l was thinking a sxr a limited pipe,mill and your at low 60's
Prop aswell. How much run time though 25mins compared to and hour on
A 650 with SBN 44
100BUCKS A DAY WITH A SXR F THAT
That's what l was thinking a sxr a limited pipe,mill and your at low 60's
Prop aswell. How much run time though 25mins compared to and hour on
A 650 with SBN 44
100BUCKS A DAY WITH A SXR F THAT
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- Location
- Stockton CA
I had my 650sx doing 52 mph. I had a 13/18 solas, ocean pro ride plate, pjs scoop, dual 38s, mariner head, ported and polished top end, westcoast pipe and no waterbox(if that makes a difference). It became soooo squirrelly at 52 mph it wasn't even fun. Im not trying to put you down at all. But dont even waste your time on a 650 hull.I dumped all that into a 750 hull and it was the smartest move I've made so far.
- Location
- Reno/Sparks
My 650 X2 will run in the 50s. I did the added cylinder mod. lol
- Location
- Valley Springs, CA
How did those dual 38's work for u as far as tuning?
Vumad
Super Hero, with a cape!
- Location
- St. Pete, FL
My limited X2 runs about 52. I'll have to GPS it when I get it back together.
An X2 is different than a 650sx. The X2 is a unique, one of a kind boat with nothing else like it. This 1100 X2 is cool, but a 1100sx would be silly. The 650sx is just an old ski. There's nothing unique or special about it like there is about the X2. Don't spend money to get your SX into the mid to high 50s. That's all money wasted that could be going to a SXR or SXI.
Yes, but its not cool so nobody does it. Maybe if you wrapped it in carbon and made it really loud. Otherwise nobody will talk to you.
- Location
- Fortwalton Beach Fl.
Ya you wana drop it to 175-180 psi with a factorypipe
There's 3mph in a dales cdi the 650 had a weak spark
Those dales are a couple hundred though
Probably under propped,with a 9-17 and factory your at 49-52
There's 3mph in a dales cdi the 650 had a weak spark
Those dales are a couple hundred though
Probably under propped,with a 9-17 and factory your at 49-52
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- Location
- Fortwalton Beach Fl.
55mph is about the safe limit, that's movin fall off at speed and it starts to hurt