250R porters

[IamJasyn]

I tried to use the search function up top, but it didn't work for some reason...
So, who are the best porters for the 250R? I don't go to big companies anymore after ESR had their hack screw up a simple bore job for me. I've had my porting done by Rick Kirmil (macdizzy), who did an amzing job but he doesn't seem to be available, at least not to me. Eric Gorr I hear was good, but moved his work out of country.

[flotek]

rick kirmil is such an awesome 2 stroke genius who is on another level well over eric gorr . those will be some hard shoes to replace IMO esr has done some nice work,im kind of surprised to hear that ,what mods do yo u have ?...and what kind of riding do yo udo primarily ?

[IamJasyn]

Well, the work right now anyway isn't for me. It's for a friend with a stockish 88R who is going to be blasting Glamis dunes. My quad is now at 69mm bore, 38mm AS carb, reeds, TRX5 pipe, RK head, and midrange ported for duning. He's new to riding so mine is a little bit too touchy for him, but he thinks he can handle more power in his.

I don't know why ESR did what they did. I was surprised too. I was just having them do a bore job for me. People seem to like them so much I didn't even think about it. But when I got it back, the left exhaust port wasn't chamfered at all, they didn't take enough material out to clean up a ring groove by the intake port, did what looked like a quick job on chamfering all the other ports, the ex. bridge was relieved so unevenly it measured like a roller coaster. To top it off they lost my contact information and preference on piston choice and when I called them they had a little more attitude than I thought they should have given the bullshit experience I was having. I was pissed after it was over. I wound up sending it off to Rick to finish the work, paying for the job twice.

Anyway, so basically, I'm looking for someone who isn't going to do rush work and knows the technical ins and outs enough to do a 100% job on the porting and can recommend the best pipe for the work, etc. Do you know anything about Rick? My guess is he's basically not coming back, or maybe he's sick of me berrating 4strokes on his site. haha. I dunno.

[flotek]

Originally Posted by IamJasyn

Well, the work right now anyway isn't for me. It's for a friend with a stockish 88R who is going to be blasting Glamis dunes. My quad is now at 69mm bore, 38mm AS carb, reeds, TRX5 pipe, RK head, and midrange ported for duning. He's new to riding so mine is a little bit too touchy for him, but he thinks he can handle more power in his.

I don't know why ESR did what they did. I was surprised too. I was just having them do a bore job for me. People seem to like them so much I didn't even think about it. But when I got it back, the left exhaust port wasn't chamfered at all, they didn't take enough material out to clean up a ring groove by the intake port, did what looked like a quick job on chamfering all the other ports, the ex. bridge was relieved so unevenly it measured like a roller coaster. To top it off they lost my contact information and preference on piston choice and when I called them they had a little more attitude than I thought they should have given the bullshit experience I was having. I was pissed after it was over. I wound up sending it off to Rick to finish the work, paying for the job twice.

Anyway, so basically, I'm looking for someone who isn't going to do rush work and knows the technical ins and outs enough to do a 100% job on the porting and can recommend the best pipe for the work, etc. Do you know anything about Rick? My guess is he's basically not coming back, or maybe he's sick of me berrating 4strokes on his site. haha. I dunno.

i have no idea about his work load or where he is at .... theres a couple of us who port 250rs on here ,id suggest a setup very similar to yours for your friend those are really good bolton choices IMO (trx5 pipe ,38mmA.S carb etc...) you may want to pM member fiveonick as hes the honda250R go to guy on here ,i also have ported them

[fiveOnick]

Sounds like you have the best basis for what he needs to follow. The biggest thing about getting the last bit of power out is the head setup. It sounds like you have a killer head, RK tech is top notch. Was your cylinder decked to close in the squish tighter or do you know. The R's have a positive deck of 1mm from the factory which is approx .040in so by the time you add a gasket to that your looking at more than .040 squish which is where I would like to have it set. It is a minor difference but it is there. The porting can be approached in several ways. Do you guys mostly use them in the sand? I have a port on my 262 that is just a few degrees taller than what I would consider MX, it works fantastic in the sand but is a bit pipey in the dirt. If you have any ?'s feel free to PM. I am sure Evil could lend a hand in that as well.

[fiveOnick]

Oh I have a 68mm jug with a TRX 5, a 38AS, and a ESR 111 alky dome in currently. Close setup to yours

[IamJasyn]

Hey, thanks for the replies. Ya, the cyl is decked. I dial it to .39-.40 squish when I do a top end on it. Funny story was my RK cracked and for a temporary I had Loren Duncan make a head for me as we're both in the San Diego area. He took his measurements and cut the thing and when I got it on the cyl the squish was like 2mm after he said it would wind up around .45". I was shocked... I separated the stock head gasket he sold me and with my flat stone "milled" the rest down but I had to run C12 to run it while I was waiting for a replacement dome from Kelsey (which I still need to bolt on).

The next step for me in doing my own work probably at this point is porting, but I don't know if I want to go that far into things. Seems like good 2stoke builders are drying up tho. Where did you start with porting? Do you use some of the free software out there? I'll keep your cyl in mind in case he just wants to buy a bolt on. I will definetely keep it in mind.

[fiveOnick]

Originally Posted by IamJasyn

The next step for me in doing my own work probably at this point is porting, but I don't know if I want to go that far into things. Seems like good 2stoke builders are drying up tho. Where did you start with porting? Do you use some of the free software out there? I'll keep your cyl in mind in case he just wants to buy a bolt on. I will definetely keep it in mind.

I'm not selling my cylinder if you are thinking so, I was just saying I did it and thats what I thought of it. Its a nice motor for the sand and still works pretty good in the dirt if you like the 2stroke feel. I dont use any software except the one Odaen made, its a hand reference tool. Before that I just calculated stuff with equations. I started with a friend who does it on the side for money, he invited me to try and I picked it up. Bought my own stuff and now do it on the side some, but mostly for friends and myself.