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-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   525 EFI how many hours... (https://www.offshoreonly.com/forums/general-boating-discussion/306334-525-efi-how-many-hours.html)

Cole2534 01-07-2014 03:45 PM
Originally Posted by jmeng (Post 4049520)
Agreed, great thread! I've read most of it but lost track of what was posted on which page. Can someone (Eddie maybe?) summerize what needs to be done and/or checked on a 525 broken down by hours or seasonally? Or point me in the right direction if its already posted somewhere.
post #23 in this thread.

CLA 01-07-2014 08:08 PM
Originally Posted by VoodooRob (Post 4053486)
Please explain. Your personal experience would be best.
I have an eliminator Daytona. 401 hours with nothing but impeller, oil, fuel/water filters, drive oil changes. 90 mph boat any day of the week. Motor and boat model year 2005. Two c1f1 shoot out trophies, the 525 eliminator that ran in my class went 11 mph slower I think.

My fathers boat with merc 700's and 190 hours (42 lightning). Two computers from burned out iac circuits, 3 iac motors, one nxt tranny, one #6, and it always sticks in gear (reverse).

We both do our own service and his has special motor oil and expensive drive oil.

So I say ilmor all the way.

Xtremeracing 01-07-2014 08:16 PM
We have found that Amsoil seems to work the best of the oils we have used. We have even seen a few HP increase while dyno testing. The Amsoil gear lube is also awesome, ran it all last yr and every time we sent the drive out for inspection Craig said it was excellent very clean and even wear.

RAPTOR1 01-07-2014 09:35 PM
2 Attachment(s)
Originally Posted by Xtremeracing (Post 4043259)
Eddie I'm not sure the yr that Crane was having issue either, from what I have heard the steel they are using is the issue. I have heard and seen the rockers from many different builders and the story is the same. This isnt really a big deal there are plenty of other rockers out there that will do a great job.
I had heard that as well, and that the steel components are not made in the U.S. My 500's had 200 hrs. and everything looked perfect. I went with Comp Cams Ultra Arc, has anyone heard good or bad about them ?[ATTACH=CONFIG]515950[/ATTACH]

Xtremeracing 01-09-2014 09:27 AM
Originally Posted by RAPTOR1 (Post 4053885)
I had heard that as well, and that the steel components are not made in the U.S. My 500's had 200 hrs. and everything looked perfect. I went with Comp Cams Ultra Arc, has anyone heard good or bad about them ?[ATTACH=CONFIG]515950[/ATTACH]
That what I was told also that the materail SS they were using was imported.

joew. 01-13-2015 05:24 PM
Great info on this about the 525.

RaggedEdge 04-07-2015 12:15 PM
Very interesting thread here, anyone aware of some other good ones on the 525 EFI's?

Dean Ferry 08-20-2015 12:36 PM
Great thread. Eddie sure knows his stuff!

thirdchildhood 08-20-2015 05:07 PM
Stock spec replacement valve springs. PAC TVS-1631 www.racingsprings.com

bonesmalon 08-20-2015 05:39 PM
Originally Posted by AttitudeJr (Post 4041374)
One of my friends has almost 500 hrs and hasn't done nothing yet and they are still running strong
425 hrs with zero issues. Planning to do springs and seals this fall. Never header issues that many have experienced I had researched and came to the conclusion of 300 for HP500s and 500 for 525s assuming no header issues


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