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-   -   Holley HP EFI conversion (https://www.offshoreonly.com/forums/general-q/365834-holley-hp-efi-conversion.html)

Rookie 01-03-2021 08:03 PM


Originally Posted by sutphen 30 (Post 4771494)
look at all the holes in your valve covers,,better weld them up.:D

is that the final color?

LOL, No it is the base color to the orange/gold of the original valve covers. It also goes with the new paint job I put on the Active Thunder this summer.
https://cimg0.ibsrv.net/gimg/www.off...2a3b8ac137.jpg
https://cimg9.ibsrv.net/gimg/www.off...263f71cc40.jpg

https://cimg0.ibsrv.net/gimg/www.off...44fc0cddc4.jpg

Rookie 01-03-2021 08:58 PM

Just downloaded Holley V6 and updated my global file. Will flash firmware again tomorrow.

ICDEDPPL 01-04-2021 12:01 AM

looks like a ton of racing trans stuff in that V6 update.. they should come up with some more marine stuff then it be worth upgrading to .

b18cls1 01-04-2021 09:28 AM

yes the v6 is mostly trans stuff for converter dump valves, lencos , 8 spds ect no reason to upgrade
v5 is mainly for staged injectors so if not running 16 inj v5 isint really necessary


Panther 01-05-2021 08:07 AM


Originally Posted by Rookie (Post 4735624)
Wen running crank trigger I still run the Mercury distributor for the oil pump. I don't have to buy a dual sync cam sensor/trigger distributor also? Crank trigger looks like the least expensive route.

If you run the crank trigger you'll run a cam sensor in place of the dist. That's how we
https://cimg9.ibsrv.net/gimg/www.off...2de6c65706.jpg
did this one last month.

Panther 01-05-2021 08:23 AM

Converted this one from MEFI 2 to a Holley HP with Dual Sync and a single coil a few weeks ago. Going to the dyno Thursday to get the base tune done and ready for the boat. The Holley system has been an interesting one and this one was a bit of a challenge because there's zero documentation out there about running an HP system with a single coil...like zero...had to figure it out on my own.


b18cls1 01-05-2021 08:32 AM


Originally Posted by Panther (Post 4771699)
Converted this one from MEFI 2 to a Holley HP with Dual Sync and a single coil a few weeks ago. Going to the dyno Thursday to get the base tune done and ready for the boat. The Holley system has been an interesting one and this one was a bit of a challenge because there's zero documentation out there about running an HP system with a single coil...like zero...had to figure it out on my own.

https://youtu.be/jYSNMLFX9CU


ive been running the hp with a dual sync dist and daytona sensors cdi box for a while now theres documentation out there for it, dosent matter if its a dominator a hp or terminator its all the same setup.

b18cls1 01-05-2021 08:33 AM


Originally Posted by Panther (Post 4771697)
If you run the crank trigger you'll run a cam sensor in place of the dist. That's how we
https://cimg9.ibsrv.net/gimg/www.off...2de6c65706.jpg
did this one last month.

what crank trigger you run that clears the lower alt mount?

been thinking of swapping over to a crank trigger from my distributors

Rookie 01-05-2021 09:12 AM


Originally Posted by Panther (Post 4771697)
If you run the crank trigger you'll run a cam sensor in place of the dist. That's how we
did this one last month.

Sweet setup!
I jumped the shark a month ago and bought dual sync and coil near plug setups. It wasn't the least expensive way to go, but I believe it was the right way to go.

ICDEDPPL 01-05-2021 10:36 AM

Crank trigger seemed like a paint in the a$$ to move pullies and install on my set up, more expensive too.
Dual sync way easier.
Unless you`re going over 7,000 rpm dual sync will work just fine.


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