View Full Version : How much more?
jsmith2232
01-21-2006, 06:47 AM
On my 400 ex I have all the mods listed below... I am going to put a hotcam stage II in and also a higher comp. piston. How much more will i gain with boring it out to a 426 or 440 than just leaving it stock bore with the piston and cam?
nakomis0
01-22-2006, 04:52 PM
the bore will get you 1-3 hp.
Compression will be more of a factor than bore size.
The bore size comes back into play again when you improve the air intake. .... Carb, porting, valves, cam.. etc. But the current setup bore isn't a huge difference. But the larger bore is gonna take better to the intake mods you might do in the future.
why dont you buy a ds-650 turbo if you want so much power?
jsmith2232
01-23-2006, 09:25 AM
The turbo's are like 4000$ all i want is to keep up with the piped z400's and the 450's in the sand.
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