Dose anyone out there have a psi genesis 425 or esr 370, lrd 350p/v, ftz 400. I just want to know how good there motors are. Relibility power ect... thanks

 

Eddie Sanders makes some of the best 2 stroke motors around. I have his 310 kit and it hauls major ***. I don't know anyone who owns the 370 but if it's anything like their 310 or 330, it will be a screamer!!

 

I have the psi 425 power valve genisis motor and i have an esr 370 kit almost done over there and ready to ship. The psi motor is absolutly nasty. It is fast,it is tourqy,and it is powerful.There was no let down with that motor. It truly is an animal. Good for all kinds of riding,from tight trails to sand drags. The kit was really well made with only one exception,i didnt care for the steel silencer that came with the kit and the pipe. Kind of ratty looking with terrible spattery welds on it. But all in all, ever other piece really made well and fit well. I have no idea whats in store for the 370,i will see. I hear they beat up 570 shee's though. That came from an ordinary person from the glamis area,not a engine builder tring to sell a product. I dont know who was building the 570's that it was beating but all i know is that is what he told me. I had a ct 350 kit for two years and realy liked it. One of my favorites to date. I didnt care for ct's customer care but they do have a good product at a good price. It was super reliable and had a great all around power that can beat up mildly performanced banchee's. A good economical motor that will last with some good kick. That kit was all bore by the way,at 78mm.(stock 66) I also had a 330 kit with a 2mm stroker crank that made good power,comparable to the 350,if i had a choice though i would stay with the all bore 350 for reliabilty reasons. remember,always buy a stock honda crank,no imatations and no rebuilds, it will last that way! I believe,if you have to bore your cases than dont stop at a 330,just go the extra 2 mm and get the 350.good luck
Gary

 

ESR just came out with 4 power valve motors, 250-265, 310, 330, 350cc. It's not even on their website yet, saw it in their ad in the sept issue of ATVsport. And I think Duncan Racing just came out with a 340cc PV motor.

Chris

 

esr makes quality products, haven't heard anything bad about them. i would definately get a power valved motor. bill balence and ricky carmichael run power valve motors, so if they can benifit from running one, so can you.

 

It also depends on how and where you ride. I race in sand and i am always on the throttle hard so a power valve is less critical. If you need to let off and hit it coming out of turns and have less opertunities to shift it is better to have a power valve, but remember,its more work,more money,and it has to fit your riding style. They are good but i think it is getting a bit too much hype. Power valves have been around for a long,long time. Its more of a marketing thing i think. Dont get me wrong here, i do like them. I cant wait to see how this 370 esr kit is going to run in the sand! I have heard mainly good things about esr but i just recently spoke with Rick Kirmil (mac dizzy) and he claims they once had an impecable reputation for building awsome motor but that has since been tarnished. That worries me but only i will make that call when im beatin the daylights out of it, ill see what its got!

 

Well i got the esr 370 and you know what,it blew up! The cylinder liner was not the same height as the jug,it was slightly recessed and in an all out drag race it sucked in some water and it was enough to do some good damage. yes it is fast, but im a little disapointed in that dilema.

 

hey i have a question,can you still get big bore kits for the ATc 350x ??

 

Yes you can 350 dude. I had put one in a 250x frame and i put tpgether a 425 big bore kit with pipe and cam and all that. Tell you what,the thing moved out and was super reliable too,i totally recomend that kit.I even installed an electric start on it but that was not too reliable.Look around for a sleeve and piston kit,i got one and had at the time my machinist install the sleve and bore it to the piston.