RM144 ???

BAMX
Profile picture for user BAMX
Posts
2890
Joined
1/22/2012
Location
Fallbrook, CA US
BAMX
Edited Date/Time 4/16/2015 10:26am
I need some advice on my 125. Currently it is a stock 2002 with a milled head. I have a chance to get a 144 cylinder and head done by Millineaum. Or, I could have mine ported. Does anyone have experience with 144 RM's. Is it better to go with the ported 125 or 144 kit?
|
slipdog
Profile picture for user slipdog
Posts
10055
Joined
7/25/2009
Location
Nor Cal, CA US
slipdog 12/30/2012 12:34pm
12/30/2012 12:34pm
Comparably the ported 125 will have more top end but much less torque. Boring a cylinder will lower intake ports and lower and narrow the exhaust port. The best option is having the 144 cylinder ported to raise the ports up to take advantage of the extra cc's.
BAMX
Profile picture for user BAMX
Posts
2890
Joined
1/22/2012
Location
Fallbrook, CA US
BAMX 12/30/2012 1:16pm
12/30/2012 1:16pm
slipdog wrote:
Comparably the ported 125 will have more top end but much less torque. Boring a cylinder will lower intake ports and lower and narrow the exhaust...
Comparably the ported 125 will have more top end but much less torque. Boring a cylinder will lower intake ports and lower and narrow the exhaust port. The best option is having the 144 cylinder ported to raise the ports up to take advantage of the extra cc's.
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in both.
slipdog
Profile picture for user slipdog
Posts
10055
Joined
7/25/2009
Location
Nor Cal, CA US
slipdog 12/30/2012 2:09pm
12/30/2012 2:09pm
BAMX wrote:
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in...
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in both.
Since you're in So-Cal I'd get a hold of Terry Varner http://varnermotorsports.com/

Like with suspension, you'll get 100 different opinions on Vital as to who you should have do what. I like the idea of being able to walk in and talk to the person that will do your work instead of shipping it to a faceless company. That dosen't mean you can't get quality work by shipping it out of the area, it's just what you feel the most comfortable with.
BAMX
Profile picture for user BAMX
Posts
2890
Joined
1/22/2012
Location
Fallbrook, CA US
BAMX 12/30/2012 2:36pm
12/30/2012 2:36pm
BAMX wrote:
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in...
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in both.
slipdog wrote:
Since you're in So-Cal I'd get a hold of Terry Varner [url=http://varnermotorsports.com/]http://varnermotorsports.com/[/url] Like with suspension, you'll get 100 different opinions on Vital as to who you...
Since you're in So-Cal I'd get a hold of Terry Varner http://varnermotorsports.com/

Like with suspension, you'll get 100 different opinions on Vital as to who you should have do what. I like the idea of being able to walk in and talk to the person that will do your work instead of shipping it to a faceless company. That dosen't mean you can't get quality work by shipping it out of the area, it's just what you feel the most comfortable with.
Thanks....that's who milled my head and he was great. Until then I had never had an engine builder call me a couple of weeks later to see if I was happy. I have had good work from the larger shops but they do treat you like a number.

The Shop

See All »
TerryK
Profile picture for user TerryK
Posts
9899
Joined
8/17/2006
Location
CA
TerryK 12/30/2012 9:09pm
12/30/2012 9:09pm
slipdog wrote:
Since you're in So-Cal I'd get a hold of Terry Varner [url=http://varnermotorsports.com/]http://varnermotorsports.com/[/url] Like with suspension, you'll get 100 different opinions on Vital as to who you...
Since you're in So-Cal I'd get a hold of Terry Varner http://varnermotorsports.com/

Like with suspension, you'll get 100 different opinions on Vital as to who you should have do what. I like the idea of being able to walk in and talk to the person that will do your work instead of shipping it to a faceless company. That dosen't mean you can't get quality work by shipping it out of the area, it's just what you feel the most comfortable with.
This x 100.
mxmaniac08
Profile picture for user mxmaniac08
Posts
507
Joined
8/6/2008
Location
Melbourne AU
mxmaniac08 1/4/2013 1:42pm
1/4/2013 1:42pm
who does the 144 kits for the RM? any ideas on pricing? Cheers
BAMX
Profile picture for user BAMX
Posts
2890
Joined
1/22/2012
Location
Fallbrook, CA US
BAMX 1/4/2013 2:58pm
1/4/2013 2:58pm
There are a bunch of guys who do it. Eric Gorr is probably the most popular and he gets $500 is you supply your own cylinder. Google Eric Gorr Forward Motion
Tumic
Profile picture for user Tumic
Posts
2777
Joined
11/27/2012
Location
Sundsvall SE
Tumic 1/10/2013 7:32am
1/10/2013 7:32am Edited Date/Time 1/10/2013 7:34am
BAMX wrote:
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in...
Do you have any recomendations on who could port the thing? I race it both in mot and enduros but I generally run moto setup in both.
slipdog wrote:
Since you're in So-Cal I'd get a hold of Terry Varner [url=http://varnermotorsports.com/]http://varnermotorsports.com/[/url] Like with suspension, you'll get 100 different opinions on Vital as to who you...
Since you're in So-Cal I'd get a hold of Terry Varner http://varnermotorsports.com/

Like with suspension, you'll get 100 different opinions on Vital as to who you should have do what. I like the idea of being able to walk in and talk to the person that will do your work instead of shipping it to a faceless company. That dosen't mean you can't get quality work by shipping it out of the area, it's just what you feel the most comfortable with.
Sounds like the best thing to do, im not happy with my EG kit, seems like just a "kit" ( mass produced BIG bore and litle/no porting) and no personal touch to the parts, his work didn't match up to the sweet storys on his homepage, ironic when he writes a perfomance handbook and takes up a miss-match problem on the 99 cr125 cylinder, and when he ported mine he didn't fix that problem..

Go with someone where you can meet the person behind the engine mod...

My parts are going to http://www.tdc2strokeperformance.com/ and Brett seems like a really nice guy to that takes his job serious!
moto_manics 4/16/2015 6:56am
4/16/2015 6:56am Edited Date/Time 11/3/2015 3:28am
BAMX wrote:
I need some advice on my 125. Currently it is a stock 2002 with a milled head. I have a chance to get a 144 cylinder...
I need some advice on my 125. Currently it is a stock 2002 with a milled head. I have a chance to get a 144 cylinder and head done by Millineaum. Or, I could have mine ported. Does anyone have experience with 144 RM's. Is it better to go with the ported 125 or 144 kit?
......................
MXVet261
Profile picture for user MXVet261
Posts
723
Joined
4/1/2008
Location
Valley City, OH US
MXVet261 4/16/2015 7:36am
4/16/2015 7:36am
I have a 2006 RM144 from Eric Gorr and it's been bulletproof and runs awesome. Love it.
CrGuy2T
Profile picture for user CrGuy2T
Posts
4503
Joined
3/11/2015
Location
Santa Fe, TX US
CrGuy2T 4/16/2015 10:26am
4/16/2015 10:26am
Can't speak for rm's but big bore 125's are so fun.

Post a reply to: RM144 ???