Esr Wanted

[CHARDOG]

WHAT DOES EVERONE THINK OF ESR CYLINDERS? LOOKING TO BUY A 370 OR A 380. WANT SOME FEEDBACK BEFORE MAKING THE JUMP!!!:twisted:

[CHARDOG]

everyone looked but noone replied!!!!!!!! too late ......370 cyliner is on the way!!!!:twisted:

[TimSr]

everyone looked but noone replied!!!!!!!! too late ......370 cyliner is on the way!!!!:twisted:

Consider yourself lucky! That means people read, but didnt know. Usually you one or two good opinions and 3 pages of opinions by people who have never seen one before and you have to figure out which ones know what they are talking about!

[deathman53]

I can say, that a 370 kit reures crank work and you will have problems like I did using a esr 330 on my atc250r with the sprak plug hole being directly under the frame rail and having the grind it out some for the spark plug to go in easy. Also with the atc radiator you might have heat problems too. I have a lrd310pv and the rest of the "right" mods and its more bike than alot can handle. you might want to use a 40mm carb, cr reeds, getting rid of the airbox, +7 swinger and extended axle if you plan on upgrading power that much to make the atc ridable to and make the power it should, you also need to consider a custom made big-bore pipe, the smaller pipe will make your bike run hotter and it won't make the power as expected w/o a big bore pipe. Somethings to consider.

[RideRed250R]

deathman also is dealing with a pv as i believe? i have no problem fitting my 310 based cylinder spark plug in.... not one problem, loss of room?> O YAH, the stroker plate will rase it up, but it will be way worth it, I do however say get it dyno tuned... my esr motor has a crap load of torque but defently needs some tuning, theres alot still hidden in that little motor....
Adam

[deathman53]

I had problems getting the spark plug on with a bolt on 330 and spacer plate. I had to grind out part of the frame, wierd, I didn't have that problem near as bad after I switched to a 86 frame. Esr motors are very generic, the 330 could have made more power if the porting was better. Now I have a lrd310pv and I am more than happy with it, it nearly throws me off under hard acceleration.

[3leggeddog]

la sleeve makes the jugs for esr,and esr just sells,and i think they do the port work.


i really like the psi kits.they are outrageous money,but i've been told they are the baddest of the big bores.never rode one though

[250r'en +TCB]

I'm gonna get the eccono 310cc, $799 I plan to be spanking every 450 I see. Those damn 4 strokers won't know what just blew past them!!!:twisted: :crazy: :beer

[CHARDOG]

Took the leap and got a 370 kit!!! Have to get the crank from esr.....5mm stroker!!
bought it from a guy who ran it for a season. He was very pleased with it!! said it smoked cubs and banshees!! We will see!! He is going to a Sabertooth!! Too rich for my blood!!

[RideRed250R]

370 kit is fast, but ant gettin my cheetah! lol 400PV ordered and the funds have no died! lol, 370's have known to hit the high 80's , and beat a few cubs but a well built cub will be around the same, all 4strokes are done! i love my 310
Adam