Does anyone have it?? How much of a increase is it? I have a stock engine with DG snorkle/holeshot.. Also isn't it around $1200?

 

I don't have one of these kits, but I did call FST about 2 weeks ago and asked for the price. If you have FST do the installation work (including mods like valve springs, etc), I believe they told me the price is around $1800. They said if I ordered the kit that day, they would not be able to get it done until August or so (because they are very busy right now).

When I asked FST if they had dyno tested a prairie 650 with the 750 kit installed, they said no. But they said the seat of the pants feel was it made double the horsepower.

 

thx for the feed back.. How do you like your mudlites by the way??

 

To answer your question, I do like my 25" Mudlites (ML) alot. They grip the sand and mud alot better than stockers. They handle well on the trails too and are very light weight compared to other after-market tires. FYI: While all ML tires have the same tread pattern, the 22-25 inch ML tires have much shorter lugs (to save weight I guess) when compared to the 26-28 inch ML tires. Personally, I chose NOT to go big because I was concerned about losing acceleration with taller/heavier tires and so far, its worked out nicely. I believe the set of four 25" Mudlite tires weigh the same as the stock set of four Dunlop tires that came from the factory. However, I believe the set of four "C" series rims that I chose weigh about 10 lbs. more (in total) than the set of four stock rims. But hey, the C series look much better and appear much more durable than stock rims, so I'm happy with my choice.

How do you like the DG holeshot? I'm currently trying to decide whether to buy DG's holeshot module or the holeshot module made by Kunytec (in Canada). The other forum postings seem to indicate a slight difference in performance, but no one has reported running the two modules in a side by side comparison yet. Are you impressed with yours and did it live up to all of the hype?

 

Hi there.

Hope not to bother you but would you happen to have the phone number for 4stroke tech's.
I had it a while ago but have lost it and need it again for parts.


Thank you for your time.

 

Infoplease,
I found FST's phone number somewhere on this atv forum...I believe FST's phone number is (814) 842-6159.

Happy trails...[img]i/expressions/face-icon-small-smile.gif[/img]

 

I have the 750 kit. It was $1700 with FST doing the porting and installing the HVD springs. I had the cylinders bored by a local machine shop another $400. My kit consist of 11 to 1 pistons, rings, gaskets, sleeves, cams, HVD springs, and porting. Then I put it back together myself. Right know I am in the process of moding my clutch. I will hopefully be dragging on asphalt this Sunday. That is if they get my clutch done!

I am also looking to dyno sometime over the winter, I will post with results. Last year with the 650 I ran about 48 mph in 300 ft. this year 56 mph with 750. That was with a blown front head gasket and seized rocker arms in rear head (750). I haven't been back since rebuild, so hopefully I get there this weekend.

 

Wildwill,
Thanx for the info. What kind of times did you make in the 300' runs with the 750 kit installed? Also, what was your top-end speed with the 750 kit installed?

 

I think they were around 6.4 to 6.6 seconds. Top speed was 68mph, that is when the rev limiter would kick in. It can do that up hill!! That was with stock clutch(blk spring & wht stripe spring) and stock belt. With the mods I am having done hopefully be able to hit 75-77 mph and do it in less time.

 

I should have my 785 big bore for my 700 Prairie next week sometime and I have to have it up and going before our next harescramble September 28th,, I will post my results as soon as I get it all done!Then we will be running it in the 12 Hours of ATV America race October 25th which will give it a real endurance test!

Wildwill,,, I lost your number but I definately need it again, I'd like to talk with you to hopefully speed my tuning time up cause I won't have much time to have it all up and screaming!