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Posts: n/a. 350 MAG MPI Repeated Ignition Failures. The 350 MAG MPI (300hp) Mercruiser in my 2001 Stingray 220sx has had repeated ignition failures, leaving me with $700.00 in tow bills, a major headache, and a "See, I told you not to buy a boat" wife. Basically, the engine will run for 20 minutes to several hours and then Kaput!Received 1 Like on 1 Post. The majority of the engines we build are supercharged. Alot of builders like to run conservative A/F ratios, usually 12.0-12.5:1. I personally through our in house dyno tuning find that ratios of 12.9 (being the richest) and 13.3:1 will make more horsepower.Aug 17, 2013 · Hello, just bought a 89 Challenger Aerotech super v 24, I understand the original company was in Cedar Springs Mi. This boat is equipped with the Challenger 500 limited edition 454. I have the Feb.1989 Powerboat magazine article where they test the boat. I says they used a modified Mercruiser magnum with modified heads and a special …Their gear oil seems to do well and does well in Volvo's for a GL 5 spec. For stock black production engines their gear oil does well. Their impellers some are the exact made as Merc but some are not. Sierra has so many impellers for a lot of models and makes. They buy from Johnson as well.

Offshoreonly Marketplace. New Products and Member Discounts; Swap Shop; Wanted; Offshoreonly Bilge. Talk Politics; UNCENSORED; Boating by Region. Great Lakes and Canada; Caribbean; Midwest; Northeast US; Mid Atlantic US; Southeast US; South Central US; Western US/Lake Havasu; Race Talk. General Racing Discussion; … · Restorations & Upgrades - Discuss boating project relating to a restoration, modifications, and updates.

He's telling you that you're just throwing random solutions to an issue without even diagnosing first so to speak. (If there is an issue) Someone told you, you had a "worn out" Bravo 1 prop so you buy a Bravo 1 FS.

Full hydraulic steering question. Finishing up full Imco system. Most of the parts are used except for the uni-mount. Sharing a pic of the exterior…. For the helm valve, does orientation matter? Donor boat had the lines, from the valve, facing the floor. For my boat, facing starboard would make for a very clean install and is preferred.Jun 9, 2015 · Their gear oil seems to do well and does well in Volvo's for a GL 5 spec. For stock black production engines their gear oil does well. Their impellers some are the exact made as Merc but some are not. Sierra has so many impellers for a lot of models and makes. They buy from Johnson as well. Received 11 Likes on 7 Posts. 1990 fountain fever stringer repair. Front of my bow needs wood and glasswork could use some tips from you guys. Going to glass it in sections. front of my bow needs wood and glasswork could use some tips from you guys. Last edited by BigSobe; 08-01-2022 at 11:04 PM. Reason: didnt attach pics. Offshoreonly.com is the leading website of high performance boating enthusiasts. Our Bulletin Board, Chat Room, Classifieds section, Photo and Movies Sections, and On-line store account for our success in becoming the largest boating website on the internet. Find the information that you are looking for, or just make friends with other boaters ...

Dec 18, 2023 · Received 47 Likes on 25 Posts. Propeller recommendations - curious what ya'll think. Repowered my Harley SuperStar 42 this summer with stock 496HOs. Looking to "mine" the smart Dudes/Dudettes on here who have more propeller experience than I do. Goal is an efficient cruise that is easy on the Merc 496s load-wise.

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Ordering takeout or delivery isn't enough: we have to be conscious about how we're doing it. One of the many challenges of being stuck at home during this pandemic is not knowing t...OSO Advertiser. General Boating Discussion - Mercruiser 5.7EFI Performance upgrades - Don't Flame, I know its a SBC TBI motor..but I'm looking on some ideas to step it up. As posted, I have a 5.7 EFI / Alpha set up on a Stingray 220SX. Reasonably light and efficient hull for its style.Oct 6, 2009 · Velocity - Discussions about boats built by this manufacturer.Jan 25, 2024 · 1 / 2. General Q & A - Intake help - I have a 10.15 compression 509 was efi 502 . Has alluminum heads with 320 cc intake runners 2.30 intake and a bullet cam 234 intake duration @50 with .590 lift and 242 duration and .598 exh at 113 lobe seperation hydraulic roller . The boat is a 22 dcb with xr drive with shorty lower.The 6.2s are 20 h.p. stronger than the 5.7 m.p.i. with about an equal increase in torque. They made a high output version of the 6.2s for a time. The rating was between 350 h.p. (probably VERY conservative) and 420 h.p. (a Mercruiser aftermarket build with CMI headers - required 92 octane).

 · Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and …performancems. I've got a mercruiser 350 magnum with the quadrajet carb on it. It's been giving me some issues I'm thinking of getting an edlebrock carb instead of just rebuilding this one. Somebody told me that the qjet on there right now is a 650 cfm and when i'm looking at edlebrocks all i see is a 600 and 750.The CDC said Thursday the masks can come off, so we’re about to see a lot of cute faces out there after months of isolation. Faces that you didn’t think were cute before lockdown a...Offshoreonly Marketplace. New Products and Member Discounts; Swap Shop; Wanted; Offshoreonly Bilge. Talk Politics; UNCENSORED; Boating by Region. Great Lakes and Canada; Caribbean; Midwest; Northeast US; Mid Atlantic US; Southeast US; South Central US; Western US/Lake Havasu; Race Talk. General Racing Discussion; … Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and Stolen; Vendor Talk; Trucks, Trailers and Transportation; Technical. General Q & A; Do It Yourself, Boating on a Budget; Drives and Lower Units; Electronics; Fiberglass and Paint; Prop Talk ...

Apr 21, 2016 · Share. 1 / 4. Formula - Refreshing my 2004 Formula 400 ss - Sold my 2009 33 active thunder and decided to go a little different route this time. Boat has 500 efi power and only has 170 hours on boat and engines,runs and sounds awesome! gotta stay as close to my powerboat roots as possible. going through boat and changing and adding.Young Performance. Are you referring to the 454 Mag MPI (385 hp) vs the 7.4 Mpi (310hp)? If so, the mag motor is a 4 bolt block with all forged bottom end and rectangle port heads. The 7.4 MPI has a 2 bolt block, cast crank, 3/8 rods, cast pistons, peanut oval port heads with smaller valves,etc. Not a good platform to modify.

Offshoreonly.com is the leading website of high performance boating enthusiasts. Our Bulletin Board, Chat Room, Classifieds section, Photo and Movies Sections, and On-line store account for our success in becoming the largest boating website on the internet. Mar 4, 2011 · 502 MPI upgrade results. I just got this off the dyno a couple days ago and think this is a great little package for the 502. The cam is from Bob Madara, the tune is from Mark Boos. Stock 502mpi with the intake dividers cut down and a bit of porting, stainless marine exhaust, run on the dyno with all accessories, wet exhaust through GGB mufflers.Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and Stolen; Vendor Talk; Trucks, Trailers and Transportation; Technical. General Q & A; Do It Yourself, Boating on a Budget; Drives and Lower Units; Electronics; Fiberglass and …Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and Stolen; Vendor Talk; Trucks, Trailers and Transportation; Technical. General Q & A; Do It Yourself, Boating on a Budget; Drives and Lower Units; Electronics; Fiberglass and Paint; Prop Talk ...Delta Air Lines and Australian carrier Rex are forming an interline partnership that will provide benefits to customers of both carriers. We may be compensated when you click on pr...02/02/2024. 7. PSI Supercharger Kit 1150/1500HP Turn Key kit with EFI system Ignition and Chiller. 01/31/2024. 8. Duttweiler Custom Engines - 2,385 HP Each on Race Fuel. 01/22/2024. 9. NEW MERCURY 500 HP ENGINE.

General Boating Discussion - Merc 275 Verado Whipple upgrade - I have a 06 38' Donzi ZFX cuddy CC. It has trip 275s. I am going to do the Whipple stage 2 upgrade soon for the advertised 65 hp gain. I will prob send everything to them next month. The way the boat is propped now at WOT I run 62 and about 6100 rpm. Does

Jan 31, 2018 · Velocity Powerboats was for sale $1M when it first was put on the block, and I think the last time I saw it listed was for $325,000. Pat is asking $500,000 for everything that is Active Thunder, AND you get the tribal knowledge to go with it. It would cost you minimum $300K to BUILD a new 37' Active Thunder.

Oct 11, 2007 · Received 1,080 Likes on 479 Posts. Slippery slope here. A true 24' V-bottom would be like the old 24' Baja and the even older 24' Cannon/Thunder powerboats. There are literally DOZENS of 24/7 boats (actually the original hull was 23+change' long and 7' wide). The Superboat mentioned above falls in that category. Scott is correct, the Crane Part Number for the 500EFI is #169621. The specifications are 230/236 Duration, 298/610 Lift on a 114 Lobe Center. From there, Crane recommends: #16HR00004. 236/244 Duration, 610/632 Lift on a 112 or 114 Lobe Center.Re: Good oil pan for Big Block Chevy's. You can contact Sterling, Cheif, Keith Eickert, RM Builder, Crocket, Zuel, Marine Assault, all are dealers on our marine offshore pans. 100% USA made, fully fabricated. Available in 10/12/14 qt. I hope this is politcally correct.Oct 18, 2016 · 38fountainecman. I own a 2006 with 496 mags. It is a 60 mph boat all day long in florida heat. In 2007, they modified hull and interior. 2006 prior there is a separate stateroom for the master with a door, 2007 after the cabin is one big area with a curtain for the master bed. Love the boat, fast, stable and lots of room for family and friends.Oct 6, 2009 · Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and Stolen; Vendor Talk; Trucks, Trailers and Transportation; Technical. General Q & A; Do It Yourself, Boating on a Budget; Drives and Lower Units; Electronics; Fiberglass and Paint; Prop Talk ... Offshoreonly.com is the leading website of high performance boating enthusiasts. Our Bulletin Board, Chat Room, Classifieds section, Photo and Movies Sections, and On-line store account for our success in becoming the largest boating website on the internet. Oct 6, 2009 · Offshoreonly Industry News; General Boating Discussion; Classic Offshore; Insurance and Finance; Poker Runs and Boating Events; Boating Safety; Beware and Stolen; Vendor Talk; Trucks, Trailers and Transportation; Technical. General Q & A; Do It Yourself, Boating on a Budget; Drives and Lower Units; Electronics; Fiberglass and Paint; Prop Talk ... BAILLIE GIFFORD INTERNATIONAL SMALLER COMPANIES FUND INSTITUTIONAL CLASS- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Curre...

Received 11 Likes on 7 Posts. 1990 fountain fever stringer repair. Front of my bow needs wood and glasswork could use some tips from you guys. Going to glass it in sections. front of my bow needs wood and glasswork could use some tips from you guys. Last edited by BigSobe; 08-01-2022 at 11:04 PM. Reason: didnt attach pics.Offshoreonly.com is the leading website of high performance boating enthusiasts. Our Bulletin Board, Chat Room, Classifieds section, Photo and Movies Sections, and On-line store account for our success in becoming the largest boating website on the internet. Find the information that you are looking for, or just make friends with other boaters who share …The shift portion of the trans does 2 things. In neutral a valve blocks flow of hydraulic pressure to the clutch pack. In Forward OR Reverse, the valve directs pressure to the clutch pack. The second thing the shift portion does is mechanically tighten down the reverse band. Go ahead and drain the fluid (ATF Type F).Re: 454 330hp upgrades. THIS WAS IN POWERBOAT MAG JAN ISSUE. PROVEN 7.4 CARB UPGRADE. QUESTION: A few years ago you listed an intake, cam and head combination for upgrading a stock MerCruiser 454, 330-horsepower engine (mine is a 1987 model) that was good for up to 425 to 450 horsepower, if I remember correctly.Instagram:https://instagram. google flights internationaltexas washington prediction pickdawgzbeautylookbookcar parts open Discover the best graphic design consultant in Ireland. Browse our rankings to partner with award-winning experts that will bring your vision to life. Development Most Popular Emer... best sports car for 100ktiiieeenprivate porn He's telling you that you're just throwing random solutions to an issue without even diagnosing first so to speak. (If there is an issue) Someone told you, you had a "worn out" Bravo 1 prop so you buy a Bravo 1 FS. He's telling you that you're just throwing random solutions to an issue without even diagnosing first so to speak. (If there is an issue) Someone told you, you had a "worn out" Bravo 1 prop so you buy a Bravo 1 FS. dental care brand crossword clue Nov 16, 2023 · General Boating Discussion - Performance center console rental - Has anybody ever seen rentals for the performance center consoles, such as Statement, Nortech...I was looking into it and havent found much and was wondering what something like that would take, or if it would even be worth it, even if having it captainedJust had a friend do his 290 Baja over the winter and rear stringers were shot. The guy that fixed the problem said the stringers were like mulch. Also the area behind the swim platform was holding a large amount of water due to poor design. He had to drill holes in the rear of the boat and seal it to allow the water to get out.In a hard landing scenario for the economy, Kostin expects the S&P 500 to fall to 3,150, marking a 24% slide from current levels. Jump to Goldman Sachs is growing more and more ske...