350 mag mpi upgrades?
09-05-2017 | 03:07 PM
#21
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Joined: Aug 2006
Posts: 358
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From: Statesville, NC
sorry for the late reply. I was hoping low to mid 400hp range would be sufficient. I am told much over 80 mph and ill run out of hull on my boat. only running mid to high 60's now with 300hp per side.
09-06-2017 | 08:17 AM
#22
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Joined: Dec 2010
Posts: 1,671
Likes: 29
I think that's a bit optimistic for a goal. On my Sunsation build with 400 hp 383s. It was reliably a high 60s boat with the 6.2s and got it to low to mid 70s.
If I wasn't forced to do a rebuild, I'd say it wasn't worth it. But since they had to be rebuilt it was a bit more fun. Opening up perfectly fine engines I probably wouldn't do.
If I wasn't forced to do a rebuild, I'd say it wasn't worth it. But since they had to be rebuilt it was a bit more fun. Opening up perfectly fine engines I probably wouldn't do.
05-01-2018 | 12:24 AM
#24
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05-01-2018 | 06:45 AM
#25
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Joined: Jun 2014
Posts: 110
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From: Fenelon Falls, ON
I’ve done the measurements and big blocks will fit.
A friend a 28ZX with Holley supercharger. It ran 84. But was a handful above 80.
Ive come to the conclusion that, if it weren’t for parts availability, resale and serviceability down the road the marinized LS platform is the way to go.
I tend to keep my boats a long time so will likely go with big blocks later this year.
Double R Performance in Toronto feel they can set it up to eliminate any handling issues the added weight might create.
In the end it’s no different than having two big guys in the rear seat.
A friend a 28ZX with Holley supercharger. It ran 84. But was a handful above 80.
Ive come to the conclusion that, if it weren’t for parts availability, resale and serviceability down the road the marinized LS platform is the way to go.
I tend to keep my boats a long time so will likely go with big blocks later this year.
Double R Performance in Toronto feel they can set it up to eliminate any handling issues the added weight might create.
In the end it’s no different than having two big guys in the rear seat.
05-01-2018 | 08:10 AM
#26
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Joined: Aug 2005
Posts: 711
Likes: 88
From: South FL
How to Build a Supercharged Torque Monster for $3900 out of All-New Parts!
food for thought .... if only my vessel weighed about 8,000 lbs less.
Stirring the pot
food for thought .... if only my vessel weighed about 8,000 lbs less.
Stirring the pot
05-25-2019 | 12:41 AM
#28
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Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
^^^^^ HUH
HVS not phased correctly so the cam angle is off - has the HVS been moved and or pulled out and reinstalled ?? timing is non adjustable for most EFI 2001 thru current marine engines.
New cap and rotor is always needed on these apps every 1 to 4 years max.
HVS not phased correctly so the cam angle is off - has the HVS been moved and or pulled out and reinstalled ?? timing is non adjustable for most EFI 2001 thru current marine engines.
New cap and rotor is always needed on these apps every 1 to 4 years max.
05-25-2019 | 02:34 PM
#29
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Joined: May 2019
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[QUOTE=BUP;4688371]^^^^^ HUH
HVS not phased correctly so the cam angle is off - has the HVS been moved and or pulled out and reinstalled ?? timing is non adjustable for most EFI 2001 thru current marine engines.
New cap and rotor is always needed on these apps every 1 to 4 years max
HVS not phased correctly so the cam angle is off - has the HVS been moved and or pulled out and reinstalled ?? timing is non adjustable for most EFI 2001 thru current marine engines.
New cap and rotor is always needed on these apps every 1 to 4 years max
05-25-2019 | 02:40 PM
#30
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Joined: May 2019
Posts: 3
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[QUOTE=shimer;4688435]HVS never been removed. Got codes for Temp sensor, oils sensor, MAP sensor and TPS sensor.
