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-   -   upgrading cam on 454 mag crossram efi (https://www.offshoreonly.com/forums/general-q/299329-upgrading-cam-454-mag-crossram-efi.html)

airbats801 07-06-2013 06:04 PM

upgrading cam on 454 mag crossram efi
 
I have a set of 454 285hp crossram efi mags and i was curious if this computer is tuneable or would i have to go to a stand alone for any serious upgrades?

I've been thinking about doing a slight cam upgrade on it, but down the road i would like to pump out a. Bit more.

I wouldnt think a slight cam upgrade would do anything, bit if i can get another 200rpms out of it im curious if i would be fighting a srock limite, which leads me back to the sdjustability question.

FIXX 07-06-2013 06:09 PM


Originally Posted by airbats801 (Post 3954431)
I have a set of 454 285hp crossram efi mags and i was curious if this computer is tuneable or would i have to go to a stand alone for any serious upgrades?

I've been thinking about doing a slight cam upgrade on it, but down the road i would like to pump out a. Bit more.

I wouldnt think a slight cam upgrade would do anything, bit if i can get another 200rpms out of it im curious if i would be fighting a srock limite, which leads me back to the sdjustability question.

should be 385 hp....what year tho?

airbats801 07-08-2013 01:13 AM

bow tie 4 bolt main 1993-1995 block

Trash 07-08-2013 02:13 AM

The short answer is yes the MEFI controllers are tune-able. You would need to install a wide-band O2 sensor to do so.


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