Other gp800 motor for freestyle

[mike b]

Planning on getting a freestyle hull this winter. Am thinking about motors and was considering just starting with a 701. Then started thinking about 760 motor. Was on CL and found some gp800s near prices of other skis with 701 or 760. Ive seen some people who run these motors. How good would this motor be for bottom end power. Can i run a normal bpipe on this or would this be a different style exhaust port? Found a cheap one with a blown motor so would this be good to get and bore the motor, put a pipe and head on it? My initial plans were to get a 701 for a season then send it off to get a php mightymouse. Point of this post is would that be a good engine to build and give more power than a small bore stroker?

 

[freestyle 650]

It will cost alot more to rebuild that 66e and make it fit in a hull intended for a 62t motor so if your on a budget it may not be your best option, however the 66e motor has alot more potential to make great power than a 62t based motor. A b pipe or any sj pipe will not fit the stock cylinders, you would need a wdk pipe or some type of custom adaptor plate along with a upright mounting kit and wdk intake mani before you can even think about fitting a 66e into a stand up.

 

[Matt_E]

Planning on getting a freestyle hull this winter. Am thinking about motors and was considering just starting with a 701. Then started thinking about 760 motor. Was on CL and found some gp800s near prices of other skis with 701 or 760. Ive seen some people who run these motors. How good would this motor be for bottom end power. Can i run a normal bpipe on this or would this be a different style exhaust port? Found a cheap one with a blown motor so would this be good to get and bore the motor, put a pipe and head on it? My initial plans were to get a 701 for a season then send it off to get a php mightymouse. Point of this post is would that be a good engine to build and give more power than a small bore stroker?

It's been tried for over ten years now to use the GP800 motor as a cheap freestyle motor. Never caught on.

 

[mike b]

Good info and points. Just saw one for 1k in a rtr sitdown and 500 for the blown ski so thought could make a low budget build

 

[Matt_E]

By the time you have all the parts - and a few of those are made by WDK only - you will have a motor with a lot of bugs to work out and very little knowledge-base to draw from. It will always and forever be a project and every time you try out a well built 701-based motor, you'll kick yourself and realize you did not save any money at all.

 

[restosud]

the upside is that incredible power can be made easily and the motor will last and last unlike temperamental 701 base jobs.
intake manifold can be found new or used( heck i have 2 new ones),wdk pipes come up used every now and then but some adapter plates are out there to fit a pfp or b pipe.
the mount kits also come up used here and there.
if you're lucky,wdk can get you all the stuff new but ???
if starting with a used engine,get the cylinders bored to 927 with new nikasil and enjoy the ride.either run the electric power valves or get gas valves.plenty of them out there.
the electrics are reliable and hook up readily to your oem s/s switch.
done right it will not be a budget job however.

 

[Matt_E]

the upside is that incredible power can be made easily and the motor will last and last unlike temperamental 701 base jobs.

Hold up. Who is making incredible power with a 66E platform?
I've seen a few and I didn't find them to be "incredible" but I did not ride them.
Even the WDK 1200 doesn't exactly get rave reviews for power. The only exception is the XS1200.
And what about these 'temperamental 701 base jobs'? Are 701 based builds somehow considered unreliable? That hasn't been my experience with well-built 701 based motors.

done right it will not be a budget job however.

And that's the problem. A done-right 701 based motor won't be cheap, either - but it will be reliable and have plenty of power.

 

[Dutchie]

Now we are in to this engine questions..

What is better a 760 or a 701 ? I know about the timing issues. But there are sleeves out there that have the same timing as the 701.

Then the 760 would be the way to go right ?

 

[Matt_E]

That's a very broad topic that has been answered dozens of times. I'd recommend searching for it - no point in repeating information that's already out there.

To get you started:
http://www.x-h2o.com/threads/57315-701-or-760
http://www.x-h2o.com/threads/116755-760-or-701
http://www.x-h2o.com/threads/11449-701-or-760
http://www.x-h2o.com/threads/40520-760-Ported-VS-701-Ported-my-opinon

More: https://www.google.com/search?q=701...s=org.mozilla:en-US:official&client=firefox-a

 

[Idok]

701>760

however

760cc's >701cc's

so,

760cc 701 > 760 760cc





hopefully this made it easy for you to understand

 

[Dutchie]

I HATE THE < > hahaha

The 760 with the 701 specs is greater then the 701. The 760 is not a freestyle. I know that couse of the timing 88degrees ptdc e.c.

I wanne make a bigbore. But want the low timings offcourse. To translate it all is a lot of work. And inventing the wheel again is not smart ( and time consuming haha )

So to resleeve a 701 to 760 is the way to go or make a 61 T 850 blowsions ?

I thing the blowsions with the biggest bore so thats a plus. then the timing issue

Maby some one wants to help me. Im also interested in buying some info if it's a big deal.

I got my mind on the blowsion 850 for some reason haha

Greetings mates !

 

[Idok]

I HATE THE < > hahaha

The 760 with the 701 specs is greater then the 701. The 760 is not a freestyle. I know that couse of the timing 88degrees ptdc e.c.

I wanne make a bigbore. But want the low timings offcourse. To translate it all is a lot of work. And inventing the wheel again is not smart ( and time consuming haha )

So to resleeve a 701 to 760 is the way to go or make a 61 T 850 blowsions ?

I thing the blowsions with the biggest bore so thats a plus. then the timing issue

Maby some one wants to help me. Im also interested in buying some info if it's a big deal.

I got my mind on the blowsion 850 for some reason haha

Greetings mates !

lol..you got it


the easy way is to take a 61x and just bore it to 84mm

 

[Dutchie]

Still the blowsions sleeves Ar on my Mind

 

[restosud]

Hold up. Who is making incredible power with a 66E platform?
I've seen a few and I didn't find them to be "incredible" but I did not ride them.
Even the WDK 1200 doesn't exactly get rave reviews for power. The only exception is the XS1200.
And what about these 'temperamental 701 base jobs'? Are 701 based builds somehow considered unreliable? That hasn't been my experience with well-built 701 based motors.
i don't know but pin bearings come to mind,so do rods and main bearings wearing out on stroked 701.lets not forget pistons.it's a well known fact and has been discussed and experienced by many here.= temperamental.and strokers are needed to make equivalent power a gp base makes stock.
having had or still riding gp base jobs i can tell you they are more motor than a 7 port cast lamey stroker.first hand experience here.


And that's the problem. A done-right 701 based motor won't be cheap, either - but it will be reliable and have plenty of power.

once again,cheap will not get anyone anywhere.

 

[Twinturbostang]

701>760

however

760cc's >701cc's

so,

760cc 701 > 760 760cc

hopefully this made it easy for you to understand

I like where your head is at.
heres even more logic for you

4mill stroker 701> stock 701

kawi 750 or 800 are a better stronger beefier case design with 4 more mils of cranks so

Kawi>yami

Bam

 

[Dutchie]

I got a kawi and love my yami