We offer engine reflashing, tuning, camshaft, throttle body, cylinder head and exhaust mods for all 496 marine engine. Winterization of a mercruiser 496 mag high output engine i wouldnt expect that system to work except during testing. Dont waste your money on gimmick upgrades the 496 runs the best itll run from the factory. We take pride in the mercruiser ecu chips that we sell and know that your inboardoutboard will be better after one of these is installed on your 496 mag mpi 375 model. If you are looking for performance parts, we offer the best distinguished. As you may know, procharger is now available as oem equipment from many of the leading performance boat manufacturers, and accessible technologies now produces more supercharger systems to fit mercruiser. Whipples easytoinstall package essentially swaps out the stock pcm for one from the fresno, calif. Jul 23, 2014 if youre looking for up to 85 additional horsepower from a stock mercruiser 8. Find great deals on ebay for 496 mercruiser and mercruiser 8.
Or you tun the key off on hot, humid, weather after a wot run. Jan 26, 20 i have a 496 ho mag thats been giving trouble. Feb 25, 20 how to properly install wiring for a 24v minn kota trolling motor with a breaker switch. Have you modified your stock mercury efi engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger. How do i properly flush a mercrusiser 496 mag bravo 3. Mercruiser 496 ho fuel consumption 425 hp mpg gph specs. The blocks are made more precise than ever and consume less fuel, run more smoothly and they are quiet. All xr drives are now available as well, including the sport master xr and new bravo three xr. Mercury 496 engine upgrades at boostpower marine youtube. Cobalt is loaded with all factory options and has many aftermarket upgrades.
Once on plane and up to speed, its hard to tell that it is running rough, but it is. Mercruiser quick strike spark plug wire set model 496 mag, mag. The 496 mag and 496 mag ho are out of the lineup, replaced by the 8. Winterization of a mercruiser 496 mag high output engine page. I have a 496 mag with a whipple kit that broke a rod and took out the long block.
The only differences between the mag and mag ho are the cam and ecm programming. I use the words outofwarranty because power upgrades void engine warranties and you dont want to mess with that. Thanks to one of our customers, mark leblanc, an opportunity arose to do some comprehensive testing on a mercruiser, 496 mag. However i was looking at mercurys specs for the 502 mag. After several months of testing, whipple industries is releasing its pcm upgrade kits for outofwarranty mercruiser 8. Procharger marine systems offer absolutely unparalleled performance and reliability for the extremely demanding marine environment. View and download mercruiser 496 mag owners manual online. Whether its the stage 1 and 2 packages or custom calibrations for your application, we can easily handle it with incredible accuracy and a ultra fast turnaround time. The cobalt 373 has classic lines flowing along bonded side windows which extend. Kit includes a set of specially internally runnered header style manifolds, with all stainless steel tube style risers. Mercruiser 496 ho headers magnum 27 starfire duration. Jun 14, 20 choosing a backup generator plus 3 legal house connection options transfer switch and more duration. Pcm upgrade available for popular mercruiser engines. Dropped the boat in the water yesterday, she started right up, but under acceleration the engine is cutting out and has reduced power.
Starters free delivery possible on eligible purchases. The innovative water drain system effectively enables boaters to extend their boating season into th e cold months. The new hightech 496 mag ho highoutput version represents the next generation of powerful, smart, virtually maintenancefree engines. Virtually all the inboardvdrive applications i see have the 8. Mercruiser does not publish the torque curves of thier engines, but most of the ho engines i see are 496ho in sterndrive performance and performance cruiser applications. Select mercruiser test model hp fuel consumption wot. Scroll down the active diagnostics window and highlight trailer limit. Mercury 496 engine upgrades at boostpower marine duration. On twin engine units you will need no less than 36. Mercruiser blown 496 whipple charged motormotor torn down to short block and rebuilt from the crank up. Replaces 2001 and newer gm 496 magnum sn 0m025000 and up with 555 controller. The exhaust height is very close to the same however the width of the exhaust.
That torque from the extra cubes and hp of the ho allowed you spin more pitch with the same wot rpms. Buy mercruiser quick strike spark plug wire set model 496 mag, mag ho 8. Jun 01, 2001 the 496 mag ho model has a forged steel crankshaft for reliability, and all models have a cast aluminium oil pan with a 12mm drain plug either side. Mecury 496 ho stern drive installation guide steering corrosion. If youre looking for up to 85 additional horsepower from a stock mercruiser 8. In past posts, there has been some discussions about a stonger bottom end with the 375hp engine. The engine is equipped with a closed cooling system as well as a drain system. The 425 hp 496 mag ho is the most powerful mercruiser engine available in our standard lineup. I had a post a while back in regards to the reflash of my 496 mag non ho pcm. This is a direct mercruiser replacement for 496 mag and ho engines. Mercruiser 496mag 496mag ho marine performance parts running an inboard 496cid 8. Genuine mercruiser 496 mag mpi ho bravo sea water pump impeller kit 47.
After several months of testing, whipple industries is releasing new powertrain control module upgrade kits for outofwarranty mercruiser enginesthe 380hp 8. Procharger 496 mag mag ho supercharger systems now. So i would say if your not a gofast guy, get the base model 375hp engines. Lets say you have a singleengine vbottom sport boat powered by an outofwarranty 425hp mercruiser 496 mag ho engine.
The stage 2 marine supercharger performance package bumps the 496 8. Performance parts for chevrolet gm gen7 bbc vortec 8100 8. Nov 19, 20 available for the mercruiser enginesthe 380hp 8. American nautics mercury marine mercruiser 496 mag. Zero hours on motor, 16 hours on exhaust manifolds, cooling and other accessories. We are focused on providing quality parts, superior customer service, fast delivery and low prices. Upgrading your mercruiser 496 mag mpi 375 dynoboost boat performance chip mostly can be performed in your own garage with top notch results. I was set on finding a 500efi or 525efi but during my search i came across a carbureted 540 ci 8. What are the best performance upgrades for the 496 mag ho motor, raylar make a nice kit, but it is the same price a whipplecharger, i am just trying to.
A special camshaft profile and unique fuel and spark calibration combine to provide an additional 50 hp and a 200 rpm higher operating range compared to the 496 mag. Our emi thunder has been modified to work on the new 496 mag and 425 mag ho mercruiser engines. Has anyone considered adding any performance upgrades to the new merc 502s i know the 496 motors would not hold up well with any horse power enhancements, superchargers, blowers etc. Are these the correct ones and what is the water rail conversion thing about. I understand that not all props are equal and if it ran 78. The 496 magnum ho mpi v8 2012 modelcontact us for latest model information this engine is super slick. We are proud to offer a complete kit with specific mounting locations for all.
More performance drives are available than ever before with the mercruiser 496 mag and 496 mag ho big block engines. If you want to boat all winter, get a fwc system installed and drain the raw water side of the heat exchanger, manifoldsrisers, and raw water pump bravo drives and make sure nothing is clogging the drains. Marine parts plus has been a supplier of marine parts and accessories since 2007. Notes important part details, year, make, engine type, enginehp, model, component. In the process of purchasing a new cobalt 220, i have been trying to do some research on the differences between the 375hp and the 425hp version of the 496 or 8. Aug, 2009 how do i properly flush a mercrusiser 496 mag bravo 3. Raylars marine performance packages are bolton replacement parts for any mercruiser 496 mag 496 mag ho, volvo penta 8. The 496 mag ho sterndrive engine pictured measures 889mm x 838mm x 610mm compared to 991mm x 8mm x 559mm for the 454 mag mpi. The engine weighs 65 percent less and has much better resistance to corrosion. Immaculate cobalt 373 featuring twin mercruiser 496 mag high output motors. The pcm 555 microprocessor is built right in, so you can take. Replacing or repowering your mercruiser 454 or 502 marine. Have you modified your stock mercury efi engine by adding high performance exhaust, a bigger cam, a high. Buy a genuine mercury quicksilver or aftermarket part.
No matter if you are a marine service center or the diy kind of boat owner, there is no easier way to add this amount of powerspeed, than a procharger supercharger system. Installation drawings for dimensional reference open in separate windows. These procharger marine supercharger systems for the mercruiser 496 mag ho and 496 mag motors offer the industrys coolest charge air temperatures, unmatched performance, and engine longevity. Mercury marine mercruiser 496 mag 496 mag ho performance parts.
Lbs of torque, the ho made 448 and the stage 1 ho made 479. Whipple supercharging has the only rights to the software that reprograms our ecms. Mercruiserexclusive water drain system an airactuated, singlepoint interface to two drain points provides a fast, convenient means of draining water from the engine. Youll need the following to perform the upgrade to the vesselview unit. The best source for mercruiser oem parts, marine engines, boat. I have a 2007 ultra 26 shadow deck with a 496 ho and want to add some additional power. The innovative water drain system effectively enables boaters to extend their boating season into the cold months. Unfollow mercruiser 496 engine to stop getting updates on your ebay feed. Have you modified your stock mercury efi engine by adding. Whipples easytoinstall package essentially swaps out the stock pcm for one from the fresno. Mercruiser exclusive water drain system an airactuated, singlepoint interface to two drain points provides a fast, convenient means of draining water from the engine. We are following the cdc guidelines in our workplace and ensuring our employees safety. Told him he is counting the days until that engine is junk.
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