ECM Re-Program
11-25-2011 | 11:03 PM
#11
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Joined: May 2005
Posts: 257
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From: LOTO 19 MM
Last I talked to Mark he was NOT able to do a 555 ecu..he had to send it out to someone he deals with..
But I would not waste my time with just the ecu reprogram..
This is what you need to do,,,Cam,,Drill idle bleed hole on throttle body from 1/8 to 1/4,,,ecu reprogram..prop...New engine cover decals...
I have done it on my last 2 boats and worth it!!
But I would not waste my time with just the ecu reprogram..
This is what you need to do,,,Cam,,Drill idle bleed hole on throttle body from 1/8 to 1/4,,,ecu reprogram..prop...New engine cover decals...
I have done it on my last 2 boats and worth it!!
Very nice BoatNT got a couple questions for ya
1. Did you slide out old and slide in new on the same cam bearings?
2. How much clearance did you need in front of the motors?
3. Are the Valve springs the same from HO to MAG?
4. How many hours have you ran since the swap?
5. Total cost of parts alone including the reflash
4.
11-26-2011 | 05:56 AM
#12
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Joined: Jan 2003
Posts: 853
Likes: 0
From: Pgh. Pa.
Can anyone tell me if I were to have one of the best in the industry, Precision Marine ( Mark ) re flash my ECM, on my stock 496 mag, what could I expect to gain? I am 4640 @ WOT with 4 people and 3/4 tank of fuel. Would I be giving up any reliability and economy? I know it is expensive, but is it worth the gains if any?
Thanks in advance.
Gary
Thanks in advance.
Gary
11-26-2011 | 07:25 AM
#13
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Joined: Jan 2003
Posts: 356
Likes: 2
From: Clinton, Iowa / LOTO 20MM
Can anyone tell me if I were to have one of the best in the industry, Precision Marine ( Mark ) re flash my ECM, on my stock 496 mag, what could I expect to gain? I am 4640 @ WOT with 4 people and 3/4 tank of fuel. Would I be giving up any reliability and economy? I know it is expensive, but is it worth the gains if any?
Thanks in advance.
Gary
Thanks in advance.
Gary
11-26-2011 | 09:36 AM
#14
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Joined: Jan 2005
Posts: 4,822
Likes: 376
From: IL
Very nice BoatNT got a couple questions for ya
1. Did you slide out old and slide in new on the same cam bearings?
2. How much clearance did you need in front of the motors?
3. Are the Valve springs the same from HO to MAG?
4. How many hours have you ran since the swap?
5. Total cost of parts alone including the reflash
4.
1. Did you slide out old and slide in new on the same cam bearings?
2. How much clearance did you need in front of the motors?
3. Are the Valve springs the same from HO to MAG?
4. How many hours have you ran since the swap?
5. Total cost of parts alone including the reflash
4.
