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Forum: Prop Talk

07-31-2021, 07:55 PM

Replies: 13

Prop Rule of thumb to raise rpm by 500 rpm ?

Views: 2,928

Posted By smokediver

I changed ratios in my old 16 classic. It ended...

I changed ratios in my old 16 classic. It ended up being 4 inches of pitch .. if you were turning a 25 you would need to drop to a 21.

Forum: General Q & A

09-08-2020, 03:21 PM

Replies: 3

TBI and MPI fuel tables

Views: 745

Posted By articfriends

If your asking do they have the same exact fuel...

If your asking do they have the same exact fuel curve, no. Bob at mefi burn cannot provide unlock codes either for a mefi3 350 TBI fwiw so IF you want to tune one, you'll need a different base tune...

Forum: Do It Yourself, Boating on a Budget

08-19-2020, 12:01 PM

Replies: 25

383 Carburetor Jetting for AFR

Views: 4,024

Posted By Ratty206ls

I have wet joint manifolds with an o2 spacer...

I have wet joint manifolds with an o2 spacer between the riser and manifolds. I have wideband on one side and left other side open for sniper efi in future. I also have an aftermarket riser set up...

Forum: Do It Yourself, Boating on a Budget

08-17-2020, 06:25 PM

Replies: 9

350 Mag MPi to 383 Mag MPI

Views: 3,892

Posted By Trash

You might be surprised that you actually don't go...

You might be surprised that you actually don't go up in pitch that much or at all, but rather you are able to run the same prop at a higher rpm due to where the peak power is now being made. It will...

Forum: Do It Yourself, Boating on a Budget

07-25-2019, 01:29 AM

Replies: 11

O2 bung locations for a stock 350 Mag mercruiser exhaust

Views: 6,929

Posted By Trash

Get the Wags Engineering wide band spacer or the...

Get the Wags Engineering wide band spacer or the one from LA Boat Parts. They sandwich between the lower manifold and the riser. Run one on each bank for a more complete reading.

Forum: Do It Yourself, Boating on a Budget

06-24-2019, 03:29 PM

Replies: 18

Bilge Flooded - 10qts of water in oil pan

Views: 6,587

Posted By BBYSTWY

I have done the above mentioned method several...

I have done the above mentioned method several times on boats that have completely sunk and never had an issue...I would also pull the plugs and roll the motor over without plugs in it just to verify...

Forum: Donzi

01-15-2018, 06:29 AM

Replies: 4

88 donzi 18 ft

Views: 940

Posted By raceredrat

its shrink wrap in garage still have to put...

its shrink wrap in garage still have to put engine in and outdrive on

Forum: General Q & A

09-04-2017, 08:00 PM

Replies: 15

99 Donzi Z22BR 383

Views: 2,247

Posted By Rookie

Yes, the rule of thumb is throw lots and lots of...

Yes, the rule of thumb is throw lots and lots of $$$$ at it and it will go faster, maybe...

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