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-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   De-tuning my 2001 ilmor supercat 517 (https://www.offshoreonly.com/forums/general-q/320384-de-tuning-my-2001-ilmor-supercat-517-a.html)

sutphen 30 12-23-2014 09:18 AM
Originally Posted by vintage chromoly (Post 4225183)
Leaning toward having new pistons made.probably a better final product and cheaper in the end.
thats the best route to go.

sutphen 30 12-23-2014 09:25 AM
what kind of hp/tq are you looking for or want?

Black Baja 12-23-2014 10:23 AM
Originally Posted by sutphen 30 (Post 4238950)
what kind of hp/tq are you looking for or want?
Isn't the answer to that always - as much as possible.

vintage chromoly 12-23-2014 04:59 PM
Thanks for the interest and replies guys.
Here's the cam doctor results from the supercat cam:

http://i205.photobucket.com/albums/b...pswrzgaoow.jpg

Just a tad too big. :party-smiley-004:

Black Baja 12-23-2014 05:11 PM
How many rom are you going to spin this thing?

vintage chromoly 12-23-2014 05:27 PM
Originally Posted by Black Baja (Post 4239170)
How many rom are you going to spin this thing?
6000 rpm max. 3500 to 4000 cruise.

That cam doctor is from the supercat cam, not the cam from bob.

sutphen 30 12-23-2014 09:52 PM
Originally Posted by vintage chromoly (Post 4239176)
6000 rpm max. 3500 to 4000 cruise.

That cam doctor is from the supercat cam, not the cam from bob.
well now we know what cam to run for 7500rpm.

sutphen 30 12-23-2014 09:53 PM
Originally Posted by Black Baja (Post 4238986)
Isn't the answer to that always - as much as possible.
very true but w/ a max of 10-1,,just asking.

vintage chromoly 12-23-2014 10:17 PM
Originally Posted by sutphen 30 (Post 4239323)
very true but w/ a max of 10-1,,just asking.
In my case, I'm not going for maximum hp and torque. This is going into a 24 foot pleasure boat with a bravo drive. We think it will wind up at about 700 HP and 650 fT lbs of torque.

sutphen 30 12-23-2014 10:45 PM
what did these motors make originally?


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