Black scorpion ecm modifications?
01-18-2023, 03:37 PM
#11
Registered
Nothing of the kind, you believe them I don't. Prime example, would have to run 91 octane easiest way to do nothing when reprogram is required, say use higher octane fuel so if it runs lean there will be less chance of damage. A Merc 383 only needs 87
Another thing is Only whipple can do it, if it was do-able others would also
You may be correct and they are the only ones that can do it, I just don't believe it
Another thing is Only whipple can do it, if it was do-able others would also
You may be correct and they are the only ones that can do it, I just don't believe it
The reason why I mentioned 91 octane is because I wanted them to do a whole remapping of my PCM-0905 for top performance. Instead of the laid-back original mapping from MerCruiser. I decided not to do it.
Whipple has been in business for roughly 43 years. Annual sales about $5 Million. Their products are on top fuel funny cars and dragsters to the common car. You don't get that way, that far, by lying to people. THE END.
01-18-2023, 06:59 PM
#12
Platinum Member
Platinum Member
I didn't know that I had to explain myself when I said Whipple could program the CAT. PCM. Normally I wouldn't explain myself to you AllDodge. I do so for Chrisut so he doesn't get the wrong idea.
The reason why I mentioned 91 octane is because I wanted them to do a whole remapping of my PCM-0905 for top performance. Instead of the laid-back original mapping from MerCruiser. I decided not to do it.
Whipple has been in business for roughly 43 years. Annual sales about $5 Million. Their products are on top fuel funny cars and dragsters to the common car. You don't get that way, that far, by lying to people. THE END.
The reason why I mentioned 91 octane is because I wanted them to do a whole remapping of my PCM-0905 for top performance. Instead of the laid-back original mapping from MerCruiser. I decided not to do it.
Whipple has been in business for roughly 43 years. Annual sales about $5 Million. Their products are on top fuel funny cars and dragsters to the common car. You don't get that way, that far, by lying to people. THE END.
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SB (06-24-2024)
01-18-2023, 07:20 PM
#13
Gold Member
Gold Member
Anybody know for sure? They have basically stopped everybody from tuning ECU's for outboards. Arent these governed the same way? Isnt tuning kinda gone now for all merc platforms or only outboard?
01-19-2023, 09:05 AM
#14
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FWIW
But I remember awhile ago there was a thread on here where the poster said he called Whipple and HE claimed Whipple told him they received a cease and desist
from Mercury regarding tuning the catalyst engines and told him they wouldn't tune his.
06-23-2024, 10:09 PM
#15
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I have a 2007 tow sports 5.7 black scorpion. I bought it with the engine block cracked and put a 383 in it. Motor is in and running.
only mods were the cam (xm270hr) and the displacement.
Do I need to tune it, or will the computer make it run well enough? If I need to tune what's the best way to do that?
only mods were the cam (xm270hr) and the displacement.
Do I need to tune it, or will the computer make it run well enough? If I need to tune what's the best way to do that?
06-24-2024, 03:43 PM
#16
06-24-2024, 04:13 PM
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I called a bunch of performance boat shops. Seems like the common answer is that is “should” be fine as long as the cam profiles are similar.
The issue I’ve now run into is that after calling mercruiser… they don’t know/won’t tell me the cam specs because the guy claimed they are all made in-house and won’t give out that information…. He then referenced me to part number ( 8M0187372 ) which is the new 383 replacement engine they sell…. I’ll save you some time.. it’s $11,000…… so I called the guys over at ATK high performance and they sell a 383 that’s a direct replacement for our engine (it’s the HP105)… it’s still $6200.. but that’s a hell of a lot better than $11k
