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-   -   Cam specs for Merc 525 EFI? (https://www.offshoreonly.com/forums/general-q/58359-cam-specs-merc-525-efi.html)

John B 09-02-2003 09:31 PM

Cam specs for Merc 525 EFI?
 
Does anyone know what they are. They sound much different than the 500 EFI's, better.
JB

scarabman34 09-03-2003 07:32 PM

Lunati makes a cam part number 02005. It's lunatis version of cranes 525sc cam. It not a roller. I dont have cranes part number off hand but I have got it some where. The specs on lunatis are at ,.050" 224 and 234 with lift of .534 and .559 with a 114 deg sep.

John B 09-03-2003 10:02 PM

Thanks Scarab but this is the new (EFI) 525.

scarabman34 09-04-2003 06:41 AM

sorry, my bad. Its possible that its the same cam it just sounds smoother because of the fuel injection. If any has the answer I would like to know also. I'm guessing its crane's 139741 roller cam.

audacity 09-04-2003 06:52 AM

due to the headers and increased compression would be a good guess.

Adivanman 09-04-2003 07:18 AM

More likely a Crane 16HR00004
298/306 adv, 236/244 @ .050, .610/.632 on a 114 LC

Bob280Silencer 09-04-2003 11:36 AM

Thats the specs on the crane 168741. Probably just a different part #?Bob

Adivanman 09-04-2003 12:30 PM

The 168741 is on a 112° LC while the 16HR is on a 114°

liquid lounge 09-04-2003 12:54 PM

Advanman- You could be right....but don't you guys think the upgraded heads and a true scavenging exhaust is worth more than 25hp, all things being equal [HP500 To HP525]?? The cam you guys are speculating is decent jump from an HP500. I would guess same cam and maybe even a little less on the exhaust because of the headers, say a 230/230 114 lsa??? Take Care Berg

audacity 09-04-2003 01:00 PM

i thought we were talking about sound??...NOT power.


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