Is porting my motor worth it?

[albertp86]

I got a esr 310 now that has the 9 porting. Looking to get a little more out of the motor. The reason why I ask is I could just sell this cylinder and go bigger or have a good builder port the motor for $2-300 bucks and do all they need to do. Just looking for some thoughts of people who have done some port work. I am not looking to go drag port just want it to pull a little harder. Any thoughts?

[deadly]

I got a esr 310 now that has the 9 porting. Looking to get a little more out of the motor. The reason why I ask is I could just sell this cylinder and go bigger or have a good builder port the motor for $2-300 bucks and do all they need to do. Just looking for some thoughts of people who have done some port work. I am not looking to go drag port just want it to pull a little harder. Any thoughts?

Porting is truly an art. I dont mean to sound negative but ive seen Several esr cylinders make more hp when some else ports them. I think most people are happy when they get their new setup and rightfully so but they couldve had more. Anyone can make a sleeve match a cylinder but understanding exhaust port timing is a whole different animal. I say heck yes send that cylinder to a reputabke mechanic and get that thing to sing. I guess it explains why esr only charges ~$100 for porting (light joke)

[june]

Porting is truly an art. I dont mean to sound negative but ive seen Several esr cylinders make more hp when some else ports them. I think most people are happy when they get their new setup and rightfully so but they couldve had more. Anyone can make a sleeve match a cylinder but understanding exhaust port timing is a whole different animal. I say heck yes send that cylinder to a reputabke mechanic and get that thing to sing. I guess it explains why esr only charges ~$100 for porting (light joke)

Exactly what deadly said. Porting is an art I'v got a stock cylinder that Mike Hunt (HUNT's CYCLE) ported & one that Neil Pritchard (C-Leigh Racing) did. Both run like pretty amazing. I just rode Mike's personal 250R yesterday (which happens to be for sale). He did a pretty extensive port job on it with a stock cylinder and wow. I've never riding an R that had some much usable torque. I'm gonna get him to do another one just like the one thats on his quad.

[maxx power]

I had Carlos from BDT port mine and it made a huge difference on my stock cylinder

[albertp86]

I just keep kicking the idea around of going bigger or do a nice port. Some things I have read said that a well ported 310 can outrun a 330 that is not fully ported. Kind of interesting if you think about it.

[morse250r]

310s properly ported and tuned can be hard to beat

[jdh250r]

Carlos is porting my ESR 310 right now as we speak... i can relay the results to you if you'd like.

[albertp86]

That would be great. I will be tearing into the motor in the next week or so and deciding from there. Thanks

[albertp86]

JDH250r, what exactly did you decide to go with as far as porting and motor work? I currently have the 9 port and 9 pipe.

[Dman250r]

Carlos ported (XC) and set up my ESR 310 to run on race gas (210lbs compression). I can't say enough about how it runs. I've got a channel set up on youtube (quadrider250450) with a lot of go pro vids of my 310. I've also got a 450r with some vids on there, but the 310 will walk away from the 450 now. I love the 310 kit.