1988 Formula 350/320HP EFI Conversion
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1988 Formula 350/320HP EFI Conversion
Hello all,
Hope someone can help with this. I have a 1988 Formula 206LS that has an uncommon 350/320HP (Bravo 1 OD) EFI from Mercury Racing. I have had an occasional flooding problem. The engine fires up instantly every time, but once in a while I smell fuel richness at the dock then the motor floods and shuts down. Other times it runs just fine and can't make the problem occur. Parts availability for the EFI is a BIG problem, along with lack of documentation and skilled mechanics.
I have just pulled the EFI and the manifold off am going to replave the intake and put in a carb. I have been told that a Holley 600CFM is the best option. I don't want to lose a lot of performance. Does anyone have any insight on carb size for this set up? THANKS!
Hope someone can help with this. I have a 1988 Formula 206LS that has an uncommon 350/320HP (Bravo 1 OD) EFI from Mercury Racing. I have had an occasional flooding problem. The engine fires up instantly every time, but once in a while I smell fuel richness at the dock then the motor floods and shuts down. Other times it runs just fine and can't make the problem occur. Parts availability for the EFI is a BIG problem, along with lack of documentation and skilled mechanics.
I have just pulled the EFI and the manifold off am going to replave the intake and put in a carb. I have been told that a Holley 600CFM is the best option. I don't want to lose a lot of performance. Does anyone have any insight on carb size for this set up? THANKS!
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Re: 1988 Formula 350/320HP EFI Conversion
The Holley 600 will work well. Just be sure to get the one that is calbrated for marine performance. The standard 600 will take jet and power valve changes to run properly.
I'm running 600's and they run great.
PS want to sell the efi stuff?
I'm running 600's and they run great.
PS want to sell the efi stuff?
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Re: 1988 Formula 350/320HP EFI Conversion
Thanks for the feedback Sonic. Will let you know about selling/giving you the EFI. I already promised it to someone, but not sure if they will eventually want it.
BTW, it is the one calibrated for universal marine use 0-80559.
BTW, it is the one calibrated for universal marine use 0-80559.
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Re: 1988 Formula 350/320HP EFI Conversion
Originally Posted by skier50
Thanks for the feedback Sonic. Will let you know about selling/giving you the EFI. I already promised it to someone, but not sure if they will eventually want it.
BTW, it is the one calibrated for universal marine use 0-80559.
BTW, it is the one calibrated for universal marine use 0-80559.
Hope this helps you out.
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