2013 CRF 450 with FMF duals?

brocsdad
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brocsdad
Edited Date/Time 1/1/2013 5:41pm
Has anyone tried the FMF dual's on their 2013 CRF 450?

If so where did you see gains? Does it pull farther on top-end?

Thanks!
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gyd58
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gyd58 12/28/2012 9:21pm
12/28/2012 9:21pm
The FMF duals work really well. Gains mainly mid to top with bottom very close to the same. This is on a modified motor. Have not tried the duals on the stock motor.

brocsdad
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brocsdad 12/31/2012 9:51am
12/31/2012 9:51am
What other mods were done to the bike?
mxb2
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mxb2 12/31/2012 1:46pm
12/31/2012 1:46pm
brocsdad wrote:
What other mods were done to the bike?
Are you def wanting the fmf? I head the yosh works really good and even better with one of their cams.
brocsdad
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brocsdad 12/31/2012 4:52pm
12/31/2012 4:52pm
Well my son is sponsored by FMF so I would be using the same pipe on my bike.

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gyd58
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gyd58 12/31/2012 5:07pm
12/31/2012 5:07pm
brocsdad wrote:
What other mods were done to the bike?
mxb2 wrote:
Are you def wanting the fmf? I head the yosh works really good and even better with one of their cams.
You can make the 2013 CRF 450 faster than you want it using the stock cam. We have the FMF duals and the bike has a ported head, stock cam, stock valves, PSI valve springs, the cylinder has been machined, the cam properly timed, a CP piston, and mapping. It is faster than the 2011-12 crf 450's with way more work and lots of expensive valve train components. The 2013 motor is a really good base for a really good race motor.
mxb2
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mxb2 1/1/2013 3:53pm
1/1/2013 3:53pm
brocsdad wrote:
What other mods were done to the bike?
mxb2 wrote:
Are you def wanting the fmf? I head the yosh works really good and even better with one of their cams.
gyd58 wrote:
You can make the 2013 CRF 450 faster than you want it using the stock cam. We have the FMF duals and the bike has a...
You can make the 2013 CRF 450 faster than you want it using the stock cam. We have the FMF duals and the bike has a ported head, stock cam, stock valves, PSI valve springs, the cylinder has been machined, the cam properly timed, a CP piston, and mapping. It is faster than the 2011-12 crf 450's with way more work and lots of expensive valve train components. The 2013 motor is a really good base for a really good race motor.
Good info thanks. What type of money is involved with head work cylinder work?
motofab36
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motofab36 1/1/2013 5:24pm
1/1/2013 5:24pm
gyd58 wrote:
You can make the 2013 CRF 450 faster than you want it using the stock cam. We have the FMF duals and the bike has a...
You can make the 2013 CRF 450 faster than you want it using the stock cam. We have the FMF duals and the bike has a ported head, stock cam, stock valves, PSI valve springs, the cylinder has been machined, the cam properly timed, a CP piston, and mapping. It is faster than the 2011-12 crf 450's with way more work and lots of expensive valve train components. The 2013 motor is a really good base for a really good race motor.
what was machined on the cylinder?
slipdog
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slipdog 1/1/2013 5:41pm
1/1/2013 5:41pm
motofab36 wrote:
what was machined on the cylinder?
Decking the cylinder raises compression and tightens up the squish, whereas decking the head will only raise the compression.

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