270 540 Build
#13
PQ mounts the out drives deeper because it is a pleasure boats and makes it easy to get on plane. Basically what you are doing when you go with a shorty is raise the X dimension, the measurement of where the prop is in reference to the bottom of the hull, the V part. (someone correct me if I'm a little off)
#14
Registered
Joined: Apr 2008
Posts: 2,771
Likes: 1
From: Sudbury Ontario
Bob, do you have any performance goodies left over from the powerquest?? Would a good set of tube headers and a re -program be worth the money and effort for the performance that would be gained??
Thanks,
mike
Thanks,
mike
#15
A good pair of CMI headers are the best thing you can bolt onto an engine, getting the exhaust out quicker will make the engine essentially more efficient.
#17
#19
Registered
Joined: Oct 2002
Posts: 983
Likes: 0
From: New Orleans,La.
Verbi69,Changing from a 496 to an hp could be a lot of work.I would stick with what I know fits and work with Raylar.I'm sure they can make enough power to get your attention.CMIs look bad and sound great,not to mention they work.They came on my HP500 so I kept 'em for my 548.Bob
Last edited by Bob280Silencer; 07-07-2008 at 05:11 PM.
#20
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Joined: Nov 2003
Posts: 867
Likes: 0
From: Virginia Beach, VA
a 270 and 280 have different hulls, not sure why the comparison. The 270 has a low X and the 280 has a much higher X due to the step and the notch. The previous owner added a 1" spacer to mine and picked up a couple mph. I see 69.5 gps all day with a slightly modified 502.


