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Old 01-07-16, 19:31
victohr victohr is offline
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Join Date: Mar 2015
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Engine tuning

Hello,

I'm starting to feel that my xt 660 feels a tiny bit underpowered (Hp/torque wise) for my driving. I really like the torque of the bike but it feels like there is no power up top.

My driving:
Wheelies are a large part of my driving, i also like to do hard accelerations.
Now when i graduated i don't use the bike for commuting, so most of the time when im out riding, the bike runs hard (wheelies, Full throttle etc.).

My bike:
Yamaha XT660X 2007 with 40,000km on the clock
Stage 1+2 Filters
Slipons (straight through style)
Power commander V
02 Optimizer
Dynojet Autotune



I'm wondering what the next step in tuning is.
I've been thinking about :

big bore (couse the milage) Seems to cost 700euro (OTR) 104mm

Stage 1 cam.

Building a stage 3 filter setup.

Turbo conversion, aiming for 80hp on the wheel in that case.

Otr header

What do you guys think is the best way to go? I've spent a lil bit too much money to sell the bike.

Hope someone can give me advise.
Best regards, Victor
 

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