Looking for info tech on the 525 EFI
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12-17-2007, 09:31 PM
#12
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The computer program is pretty unforgiving. If you really want a 525 you need to match the engine as close as possible if not exact. The cam must be exact as the sensors read vacumn to control idle. Controling idle is the hard part of a EFI. I would only do this with a marine stock 502 bottom end, the 525 cam which as stated is the 741 on a 114 lobe, Elderbrok aluminum heads, and CMI long sweep exhaust. Good luck & I hope it works.
12-17-2007, 10:16 PM
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Thanks for the info so far, I'm kinda wary but think I'll go for it, hell worst case I slap a carb and intake on and I've still got a big cam and bad ass exhaust.
12-17-2007, 10:32 PM
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Check Out
I have found a lot of info on mercruiserpartsonline.com without a serial number. I will also go through some customers files and see if anybody has a 525 EFI and get you a serial number if the previous does not work.
As far as responses to your posts, It depends on the question and how many people can help you. I am sure that the people do not know you personally and will not answer your questions out of spite!
I have found a lot of info on mercruiserpartsonline.com without a serial number. I will also go through some customers files and see if anybody has a 525 EFI and get you a serial number if the previous does not work.
As far as responses to your posts, It depends on the question and how many people can help you. I am sure that the people do not know you personally and will not answer your questions out of spite!
12-18-2007, 04:17 PM
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CHEKT OUT,
In case you are interested, I have many extra parts from two 525EFI after converting my engines to Whipple Blowers. They include heads, computers, wire harness, fuel injectors, manifolds, fuel pumps, Plenums and more. Will offer at a good price. Tell me what you need.
Ray
In case you are interested, I have many extra parts from two 525EFI after converting my engines to Whipple Blowers. They include heads, computers, wire harness, fuel injectors, manifolds, fuel pumps, Plenums and more. Will offer at a good price. Tell me what you need.
Ray
12-18-2007, 10:56 PM
#19
1. Use to test initail tune before you hurt parts.
2. Can be used for set up with new ECM program fien tuning.
3. Use it to set up your carb fine tune.
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