Nick wants more power for his 250x!!
Feb 9, 2000 | 05:44 PM
#1
Thread Starter
|
Weekend Warrior
Joined: Feb 2000
Posts: 6
Likes: 0
I want more power and speed for my 87 Honda 250x. It is mostly stock except for K&N filter and RCM Straight pipe which I don't even run cause its too loud for me. I don't want to spend a whole lot of money. Anyone PLEASE HELP!!!
Feb 9, 2000 | 09:59 PM
#2
Pro Rider
Joined: Aug 1999
Posts: 305
Likes: 0
Nick,
Depends on how far into the engine you want to get, but if you still have the stock muffler, you can get a larger headpipe & run the stock muffler and get the same performance increase (or better) than you have with the RCM system. Powroll sells headers that fit your stock muffler ($100).
After that, I'd go with a vented airbox lid ($50), as long as you're not using the thing as a submarine!
If you're willing to get into the engine, you can add a mild camshaft (about $130), and maybe a slightly larger piston kit ($100-$200).
If you do all this, you'll end up with about 20 - 25% more hp.
Depends on how far into the engine you want to get, but if you still have the stock muffler, you can get a larger headpipe & run the stock muffler and get the same performance increase (or better) than you have with the RCM system. Powroll sells headers that fit your stock muffler ($100).
After that, I'd go with a vented airbox lid ($50), as long as you're not using the thing as a submarine!
If you're willing to get into the engine, you can add a mild camshaft (about $130), and maybe a slightly larger piston kit ($100-$200).
If you do all this, you'll end up with about 20 - 25% more hp.
Feb 10, 2000 | 10:54 AM
#3
Pro Rider
Joined: Jul 1999
Posts: 207
Likes: 0
Pam...
That is a very intesting idea !! New header pipe w/stock muffler !! You said this will give you as much or more then the RCM set-up !! What about vs. FMF or SuperTrapp ?? How does this compare !! I would also like more performance, but don't want to get to loud ! I have a 300ex.
Thanks
That is a very intesting idea !! New header pipe w/stock muffler !! You said this will give you as much or more then the RCM set-up !! What about vs. FMF or SuperTrapp ?? How does this compare !! I would also like more performance, but don't want to get to loud ! I have a 300ex.
Thanks
Feb 12, 2000 | 02:20 AM
#4
Weekend Warrior
Joined: Feb 2000
Posts: 6
Likes: 0
I have an 87 X also. I did a pocket porting job on mine by just deburring the intake and exhaust ports and cleaning up the area under the valves. I then put a Wiseco 12.5 75.5mm piston in and rejetted the stock carb. I don't run an air box lid and I still have the stock exhaust to keep things quiet.
Its not the fastest X around, but it holds it own a whole lot better than it ever did before. I ride with other Xs and mine seems to have more top end power. I'm going with the cam, exhaust, and carb next.
Its not the fastest X around, but it holds it own a whole lot better than it ever did before. I ride with other Xs and mine seems to have more top end power. I'm going with the cam, exhaust, and carb next.
Feb 12, 2000 | 02:21 AM
#5
Weekend Warrior
Joined: Feb 2000
Posts: 6
Likes: 0
I have an 87 X also. I did a pocket porting job on mine by just deburring the intake and exhaust ports and cleaning up the area under the valves. I then put a Wiseco 12.5 75.5mm piston in and rejetted the stock carb. I don't run an air box lid and I still have the stock exhaust to keep things quiet.
Its not the fastest X around, but it holds it own a whole lot better than it ever did before. I ride with other Xs and mine seems to have more top end power. I'm going with the cam, exhaust, and carb next.
Its not the fastest X around, but it holds it own a whole lot better than it ever did before. I ride with other Xs and mine seems to have more top end power. I'm going with the cam, exhaust, and carb next.
Thread
Thread Starter
Forum
Replies
Last Post
MeadowlarkFarm
Test Your Signatures (sigs) Here!
3
Nov 27, 2019 08:40 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
