Crf450 - cam/ecu/porting for rideable power increase?

Yeti831
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1323
Joined
1/30/2020
Location
UT US
Edited Date/Time 3/18/2022 10:45pm
So after this season, I’m going to be doing a full tear down and sending my ecu to XPR.

I’ve never been been keen on high comp pistons in 450s but I’ve also never ridden a cammed bike before.

Not sure if I’ll have the head ported or not (depends on opinions), but thoughts on mapping and a cam?

Just looking to get a more lively bottom end that carries into the mid a lot better/linear and carries into the top, but not have an overly sensitive throttle response. Granted most of that is mapping, but I wanted to hear thoughts on aftermarket cams, with or without porting.

I never considered this in the past but due to how tame this bike feels off bottom, I don’t lug it like you usually do a 450 so I’ve been using the whole power of the bike more often.

Thoughts, opinions from experience?

Again, high comp piston is not an option I’m willing to take.
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kb228
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6161
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1/31/2018
Location
Mansfield, OH US
3/19/2022 6:57am
Id talk to an engine builder but i will give you my experience. I have 2 kx450s. One is a 2009 with an HC piston, cams, and an ecu remap from tokyo mods. The other is a 2019 kx450 bone stock. The 2009 feels like an electric bike compared to the 19. Dont know why or how though
2
Factor E
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734
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9/22/2011
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So Cal, CA US
3/19/2022 8:04am
You need to talk to Matt the owner of Proven Moto in UT.
Great Honda guy
2
Yeti831
Posts
1323
Joined
1/30/2020
Location
UT US
3/19/2022 11:16am
Factor E wrote:
You need to talk to Matt the owner of Proven Moto in UT.
Great Honda guy
I honestly tried looking for reviews for UT based companies and came up short.

You rock, dude 🤘ty

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