Mercruiser 496 ho supercharger. Mercruiser 496 Whipple Supercharger Kompressor 8.

Mercruiser 496 ho supercharger 5psi of boost; High flow 120 Deg thermostat included; More horsepower and torque than a 496 Magnum HO; Starting From: $7,975. The MerCruiser® 8. Now I am running a 5psi Procharger kit. 1261 FAX 559. Self-contained ProCharger (no oil lines, quiet operation) Intercooled for maximum power and engine protection; 3 year supercharger warranty available ; Installs quickly and easily. I bought a boat with a 2006 496ho whipple supercharger. 6L 1600AX G2, 1. 1GXi / Crusader Captain’s Choice 8. 1L / Mercruiser 496 MAG / 496 MAG HO / Volvo Penta 8. The RPM limiters are set as follows: 496 Magnum (385HP): 5250 RPM 496 Magnum HO (425HP): 5450 RPM RECOMMENDATIONS 1. I'm putting the HO camshaft in it along with a Whipple Supercharger. 0M025000-0W389999) and MerCruiser 496 Magnum engines (2001-2005 with serial No. Having intermittent low to no fuel pressure issue. As the title indicates, my 2006 496 HO starts then stalls. Would clear up an run fine. 75 inch stroker crankshaft kits turn your stock 496 into a 511cid or 540cid torque monster and comes with crankshaft, connecting rods, pistons, rings and wristpins. 3L, BBC Standard Deck EFI Quad Rotor 3300AX Supercharger, Dodge Hemi SMS 2. com With just 5psi of intercooled boost from an M-1SC supercharger head unit, customers can enjoy 595+ dyno proven horsepower from their 496 MAG HO’s (550+ hp 496 MAG). 2005 Advantage 27 Victory Closed Bow. It is the same belt as installed by MerCruiser. WARNING! Oct 22, 2013 · Hello, My apology if this questions has been asked many times. 496 Mag base & HO: 0W310000 & up; 496 Mag EC Base & HO: 1A066164 thru 1A350440. HO runs 5. 1 issues,I have been with GM for 35 years we had very very few issues, Jan 21, 2012 · My thought was if you started with a base 502 mag someone could do a variety of upgrades if the ecu issue could be resolved since it has better internal components than the 496 mag. Then started to get a little hesitation when accelerating. ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO Supercharged Engines. 99 . Mercruiser Sterndrive Engines - 496 Mag HO Model. rpm Nov 30, 2019 · Stage1 Base 375HP & HO 425HP $7950 Exchange 496 MAG 375hp & 496 HO 425HP Heavy Duty replacement units (we will need year of manufacture and ECU model to ensure you have correct timing cover and cam gear/sensor type, there are 3 different ones 2001-2002, 2002-2004, 2004-2009) Blocks Mercury Racing Mercruiser 496 MAG / 496 MAG HO engine performance packages. With a 3. . Ran like a top to start with. It's like just a hair too small. 1. 1L 496 Magnum Base and HO Mercury Marine Motors. 5 - 1 psi; Intercooled for maximum power and engine protection; 3 year supercharger warranty available ; Installs quickly and easily. What did it cost to have done? 3. 496 HO bravo: 1G400000 & up. Common issues such as the IAC failures, total power loss, coil driver failures, fuel pump staying on and many others can now be repaired saving you ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engines Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger? Oct 19, 2003 · 496 Superchager Well as far as the 496 holding up I have said this before. 2L 2. For the cam swap, do I need to drop the oil pan on this motor to get the timing chain cover off? ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engines. Nov 28, 2014 #21 D. 510 114 LSA The larger HO cam is sporting 20 more degrees of intake duration, and 22 more degrees of exhaust duration, as well as . 3L 2300AX G2 / Replacement 2300AX supercharger rotor pack Replacement 2300AX supercharger rotor pack $ 2,100. That’s the word from Dustin Whipple of the Fresno, Calif. Showing 37–42 of 42 results Oct 19, 2017 · The HO cam is considerably larger than the MAG cam, and you can really hear it at idle. HO. 525 HO / Stage 1 BP-207S Supercharger High-Lift Camshaft (must Jan 20, 2012 · The reason some of the bad raps this engine gets in the performance boat community come from the fact that early in its life between 2000-2004 the only upgrades for the stock 496 -8. - Hello all. 00. 496 MAG Cam specs-204 /209 @ . 6L 1600AX Generation 1, 1. This is over Dec 17, 2019 · The 496 was dropped by Merc because GM stopped making the 8. 6L 1600AR G2, 1. 525 HO / Stage 1 540hp With just 5psi of intercooled boost from an M-1SC supercharger head unit, customers can enjoy 595+ dyno proven horsepower from their 496 MAG HO’s (550+ hp 496 MAG). Home / Superchargers, Rebuilds, Parts / Whipple / Whipple Supercharger Kit for MERCRUISER 496 Mag/HO 2001-2017 8. 20hrs so far. Bravo 1x. SKU: W SCO 155 Categories: 03-04 Mercury Marauder Lysholm 2. 2L-based engine family, and is ready to bring it to market. 442. 1L V8 2300AX. 2st Mercruiser 496 . Jun 20, 2012 · The 496 Mag HO is a better candidate for the Whipple Supercharger conversion for only one reason—the camshaft. customize your item pcm's must be sent to whipple superchargers for calibration service along with receipt 625 HP Supercharged Fuel Injected 496 ATI is proud to announce the new ProCharger® Marine supercharger system for the Mercruiser® 496 Mag HO and 496 Mag motors. raylarengineering. May 14, 2007 · 496 Magnum HO (425HP): 5000-5200 RPM 8. They all have roller lifters, which don't stop rolling with synthetic. 9L 175RF / SERVICE: Whipple Supercharger Remanufacture / Rebuild SERVICE: Whipple Supercharger Remanufacture / Rebuild Feb 15, 2010 · They are all using the same materials for rings and bearings that the boat motors are using. 6L 1600AX G2, 2. Started fine, ideling fine. 480 /. 1L Magnum (Base/HO) Call Us Today! Whipple Superchargers - 496/8. 165 hrs not a single issue. 2 Mag and ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engine 620-75309 Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger? Jun 14, 2017 · The stage 2 marine supercharger performance package (800 SRC HO) bumps the 496 / 8. Kit includes: Crank pulley; Circulation pump pulley; Alternator pulley; 17mm shaft power steering pulley & hub; Kit does not include: 625-4278 sea pump pulley Första turen på ny säsong, JIPPI, Problemen borta efter ett år! Apr 22, 2007 · Personally, I would not go with a supercharger on a stock Merc engine. I get to the dock and get in, we idel out abit and the motor dies. 0M025000-0W309999) where the power steering pump has been removed. 3L 2300AX G2, 3. Need even more horsepower and torque from your 8. This ProCharger Marine system provides up to 625 reliable horsepower on pump gas with engine friendly intercooled boost. 4MPI over 496don't have any friends with the 502? My cousin has had several cooling system issues with his stock 496. Replace worn or damaged belts to maintain proper function of engine systems driven by the belt. Whats your thoughts on this? Thanks May 16, 2012 · I know in the past this was seen as a recipe for disaster (or at least that's how it had been portrayed on that "other" boating site). Showing 1–12 of 42 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low We at Full Throttle Marine are one of the few facilities that have a prop shaft dyno capable of up to 800 HP and an engine dyno room plumbed to run marine engines in a complete wet environment. 6L 1600A G2, 1. Had the Whipple Stage 2 program done. 2L 1200AX, 2. 1L V8 2300AX / Intercooler O-ring Intercooler O-ring $ 4. 6L 100AX, 1. I recently started loosing fuel pressure while under load. With just 5psi of intercooled boost from an M-1SC supercharger head unit, customers can enjoy 550+ dyno proven horsepower from their 496 MAG’s (595+ hp 496 MAG HO). Whipple Supercharger System Mercruiser 2001-2010 496 Mag HO. 6L 1600A G1, 1. See your owner's manual or service manual for specific applications. whipplesuperchargers. Example: a 502 ho with a whipple supercharger and emi exhaust, it would have a pontential hp output somewhere around 550-575?? Jul 31, 2011 · So I got home from the lake today and think my fuel pump is shot on my 496 HO. of boost through a replacement manifold that houses our exclusive Cupronickel intercooler. Tilt Helm. 0L with 1. K&N part # 59-5005Eklin Part # Serpentine belt 865615Q01 is 2,830 mm long to fit MerCruiser 496 Magnum engines (serial No. 8. Whipple Supercharger Kit parts for MERCRUISER 496 Mag/HO 2001-2017 8. History of Whipple Supercharger Kit for MERCRUISER 496 Mag/HO 2001-2017 8. Advantage Labeled Gauges. 2L Sterndrive engine generates the torque to get heavy boats out of the hole and to cruising speeds quickly, without sacrificing fuel economy. 5lbs of boost. Off-Shore Controls. c Customer: I have a boat with a 2007 496 Mag. 00 Vortec 8100 8. The only difference in 04 and later is GM went with a floating wrist pin vs the 03 and prior pressed pin setup. Also, all 375hp motors have cast cranks, early HO 425hp engines have forged, and later, all had cast. But Whipple just posted this on their Facebook page: Testing a 496 Magnum HO with the Whipple 200ax SC "There $7649 and now feature the larger, 3. 9L, 1998-2008 Ford Ranger 3. The short-block of the 496 (mag and HO) is just a pickup motor. They contacted me said the boat is Sep 26, 2007 · General Q & A - 496 Mag to 496HO - Cam, PCM calibration, and throttle body (adjustment only). There have been some stock Merc 496's both Mag and HO that have been converted with Whipples supercharger kit and are still running just fine after 100-300 hours but there have been more that put on a nice 496 kit and after in some cases in very short hours grenaded. All the internals have been ungraded to support the supercharger. I was told they had to replace both fuel pumps (Low & high pressure). The only adjustment I have Apr 9, 2024 · For the last several months, Whipple Superchargers has been testing and fine-tuning its latest upgrade package, a PCM (powertrain control module) upgrade for Mercury Marine's 8. My english is not so perfect, but i will try to explain my problem at best. I wan't depandable low maintinance power. So, for those of you that have 2001-2004 model year engines, the time has come for you to join in the fun. Big-block muscle for big-time fun. 5' Glastron 115hp Current boat #1 1987 Ski Nautique 230 hp Currnet boat #2 - 2005 Magic DB 425 hp ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engine 620-75309 Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger? Home / Superchargers, Rebuilds, Parts / Whipple / Cheverolet / 2016-2023 Chevy Camaro 6. Founder and president Art Whipple has always been regarded as a true innovator and enjoyed a very successful racing career as crew chief and owner of Top Fuel Funny Cars and Dragsters, as well as many other forms of racing such as circle and drag boats. Joined Jul 27, 2012 Jan 30, 2020 · Mercury MerCruiser Sterndrives & Engines 2005 Baja 25 Outlaw w/ 496 mag HO 264 scanned engine hours. Three weeks ago the engine run´s perfect with full power at WOT(4900-5000rpm). What kind of results did you get, pros and cons? 2. 4 Blade Stainless Propeller. Depth Finder. Works with Mercruiser applications ONLY. 496 Magnum Supercharger Kit Search for Keyword or Part Numbers See full list on raylarengineering. dnewps Banned. Got a Mercruiser 496 Mag Ho witch I took out for the first time after winter. 030" of extra lift @ the valve. Whipple Superchargers is owned and operated by it's founder Art Whipple and is located in Fresno, CA. (866) 496-8181. Told him he is counting the days until that engine is junk. Includes Tune, Fuel Components, Intercooler Manifold, Supercharger, Throttle Body, Drive. Login. Showing 13–24 of 42 results Supercharger oil change kit with Syringe Mercruiser™ 496 MAG/HO: 1MG182-NN* 496 Mag/HO Intercooled: 30 - 40%: 3. Features M-1SC ProCharger and 496 Magnum / HO Intercooler Mar 31, 2015 · Correct, all factory 496 whether Mag or HO came with cast hyperuetetic pistons. 1S engines (2001-2004 with serial No. 4MPI motor which is approaching 350 hours without a hiccup. Fuel efficient as well in my boat. 3L Oct 7, 2009 · First boat - 1968 Starcraft 14' 40hp Second boat - 1982 15. WARNING! May 29, 2021 · General Q & A - 496 mag ho oil pressure - Hi. Polished or custom powdercoating is available for an extra fee. Mercruiser 496 HO w - 433 Hours. 2 Mag base & HO: 1S351597 & up. Experience exhilarating power and unmatched performance on the water with ProCharger's superchargers for boats. Marine - Supercharger Systems - Mercury Marine - 496/8. 2001-2010 496 MAG HO/BASE SUPERCHARGER KIT – Fischer Oct 12, 2007 · I would never run a supercharger on a stock 496. 6L R1600, 11-14 Mustang GT 140AX 2. Available for the MerCruiser engines—the 380-hp 8. 4153 www. 3L 2300AX, Whipple Supercharger Kit for Home / Superchargers, Rebuilds, Parts / Trilogy Motorsports / 03-04 Mercury Marauder Lysholm 2. May 12, 2008 · The HP3 differences from 496HO includes: custom ported heads (iron), GM ECU/sensors and programing with increased rev limit to 5400 rpm, Crane roller rockers, Crane roller lifters, Trend high strength push rods, custom Crane cam (I have a HP3 cam if you are interested), CompCam Nascar valve springs and hardware, high volume oil pump, Coyle timing sproket, fuel pressure set to 58 psi (on Whipple Superchargers, the performance technology people, can now repair many of the 2001 to 2018 model year Motorola 555 ECM and PCM’s used on the Mercury Marine and Mercury Racing engines. 21 ft Hallett. Superchargers; Throttles, Shifters & Controls → 496 Mag HO Model. It will start but Jun 24, 2020 · General Q & A - new 496 mag serpentine belt not fitting - I got a new serpentine belt from merc part # 57-865615Q01 which superseded my original belt 57-863876-1 for my 496 Mag serial number 0M687121. Whipple Kit for 496Mag HO 425 5 PSI Black (NON DTS) Mercruiser Accessories; SUPERCHARGERS / INTERCOOLERS. manuals available for free PDF download: Owner's Manual MerCruiser 496 MAG H. 5 inch or 4. This video gives you a little how to remove and install a 496 Mercruiser HO and MAG PCM/ECM. 1L Vortec? Our fully forged 4. Nice sound from this beast. 1 V8 Turbo 27 mars. 0M025000-0W309999). 3L 2300AX G2, 05-10 Mustang GT 2. Nov 26, 2014 · My buddy has a 496 HO with a supercharger. I think you're much better off reliability wise with a Raylar kit, but I'm just a keyboard jockey in this department. Any recomendations in the North East for a good Oct 15, 2009 · 496 MAGNUM HO EFI WHIPPLE SUPERCHARGED vs. I think I had about 35 psi on idling, when cruising on 3000 rpm I think it was about 45 psi and when going back to idle it dropped to SKU: W 2300AX rebuild kit G2ED FULL Categories: 03-04 Mercury Marauder Lysholm 2. 2L Mag HO ECT engines should be ready next week. 3-liter Whipple supercharger and other kit-supplied accessories […] May 19, 2011 · Test Run On Hose After ATI ProCharger Install. Performance Parts Turn Your Stock 496 / 8. , supercharger and supercharger kit outfit. Typically the IAC gets stuck and eventually melts and in some cases the iac connector will catch fire if not noticed in time. Acting just like an old carb motor with the plugs loading up. Baja 26 Outlaw SST Superman / 496 HO Kompressor 8-10 sittplatser ute. Launched the boat yesterday, wifes waiting on me to park the truck with the boat running by the dock. 1 because of fuel economy and replaced it with the small block 6. 5 psi or 5 psi*** 580 - 625: M-1SCB: 496 Mag ** Warranty on supercharger itself Jul 29, 2016 · Whipple Charger Installations Instructions for Mercury Marine 496 Engines 496 TBI _13 1 Whipple Superchargers 496Mag Mag HO Installation Instructions WHIPPLE SUPERCHARGERS 3292 NORTH WEBER AVE FRESNO, CA 93722 TEL 559. 0, which in my opinion are just as bad in fuel economy,had nothing to do with 8. I cannot get this belt no matter how hard I pull on it. 1L Magnum (Base/HO) Close . It has 650 HP and 330 hours on this rig. 496 MAG / 496 MAG HO forged crate engines add additional cubic inches and power! improving driveability and reducing Home / Superchargers, Rebuilds, Whipple Supercharger Kit for MERCRUISER 496 Mag/HO 2001-2017 8. Whipple Superchargers 3. Shore Power. 496 MAG HO (425 HP) 496 MAG (375 HP) 502 MPI Mercruiser Carb 454 MAG (350/ Procharger intercooled Mercruiser 496 Magnum and 496 Magnum HO supercharger systems . Back to Parent Section. The perfect choice for big adventures. No 496's ever came with forged pistons. 1/496 Mercruiser engines and probably other engine brands as well I can only assume unless it's specific to Merc's 555 PCM's. Whipple 496 Supercharger Kit; Procharger intercooled Mercruiser 496 Magnum and 496 Magnum HO supercharger systems . 3L, 1. 2. 1L 2100R, 2. 2001-2010 496 Magnum/Magnum HO complete Whipple Supercharger Kit for factory engines. 1L engines were supercharger systems that when placed on stock block 496's would see a good quantity of engine failures caused mostly because of improper or no re Whipple Supercharger System Mercruiser 2001-2010 496 Mag. 5psi of boost, base runs 4. Shop by Vehicle Serpentine belt 865615Q02 is 2,285 mm long to fit MerCruiser 8. Self-contained ProCharger (no oil lines, quiet operation) Features Variable Boost Technology 5. 1L chevy gm crate engines. 1L V8 using a 2300AX G2 Supercharger. I just don't think the stock 496's are built for it. By delivering a significant boost in horsepower and efficiency, the ProCharger system ensures faster acceleration, higher top speeds, and smoother handling — all Mar 5, 2013 · In development for some time, the new Whipple Industries supercharger kits for out-of-warranty, 430-hp MerCruiser 8. Motor had 40 hours since rebuilt with super charger. I think the water pickup is low on his drive compared to my 7. I did a search but could not locate an answer. 2L 1200AX, 1. I called for service. 496-8181. Aug 3, 2008 · General Boating Discussion - 496 MAG HO Problems Help! - Of course it always happens on a vacation. Aug 20, 2018 · General Boating Discussion - Mercruiser 496 ho whipple supercharger HELP. Whipple is achieving these numbers with 6 lbs. Marine. 1 MPI & 8. I sent mine to Whipple superchargers for a ECM/PCM stage 2 upgra Whipple Supercharger Kit for MERCRUISER 496 Mag/HO 2001-2017 8. Whipple Supercharger System Mercruiser 1993-1997 454 Magnum MPI Stage 1 Kit (MEFI 1) V Forced induction performance parts for supercharged engines. 1L Into One Of These! Performance parts for Chevrolet GM GEN7 BBC Vortec 8100 / 8. 1L to 804 horsepower & 824 ft-lbs of torque. 355ci Supercharged SBC Jump to Latest 7K views 13 replies 7 participants last post by 92562 Oct 17, 2009 ProCharger Marine 2001-2010 Mercruiser 496 Magnum and 496 Magnum HO Kit. I'm not sure of that. Mar 7, 2013 · Unfortunately this is a common problem with the 8. 1Gi & 8. Procharger intercooled Mercruiser 496 Magnum and 496 Magnum HO supercharger systems . Showing 25–36 of 42 results supercharger rotor pack seals- left and right http://www. They are adding our 2100 CFM Billet Throttle Body and Flame Arrestor to house 8 injectors. boattest. 3L twin screw supercharger upgrade for the 8. MerCruiser® 496 Mag & Mag HO: 2005-2010: 1MG384 Enhance your boating experience with ProCharger's superchargers for marine systems. 1 engine ,which is what the 496 is based on,GM dropped the 8. Halon Fire Suppression. 98 We have 2 MerCruiser 496 MAG H. 1L / 496cid Performance Engine Kits > With just 5psi of intercooled boost from an M-1SC supercharger head unit, customers can enjoy 595+ dyno proven horsepower from their 496 MAG HO’s (550+ hp 496 MAG). And the rumors are true, ProCharger is about to release supercharger systems for the later model MerCruiser 496 MAG and MAG HO platforms! These 2005 to current systems will still include the same industry leading head unit and intercooler, along with PCM recalibration and fuel system upgrades to deliver the ultimate in reliable horsepower. 3L 2300AX G2, 1. ProCharger Marine systems offer absolutely unparalleled performance and reliability for the extremely demanding marine environment. 3L, 175AX 2. Full Cover Aug 7, 2013 · 2004 496 ho with a bravo 1 X. The "smaller" cam profile used in the non-HO Mag results in a less desirable higher cylinder pressure condition when used in combination with a forced-induction system. 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-equipped boats than any other supercharger company. 2 Mag EC base & HO: 1A350340 & up. Jun 6, 2011 · I vote 7. O. 483 118 LSA 496 HO Cam specs-224 /233 @ . 7 and 6. Bar Console w - Blender and Sink. ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engines. Mercruiser Parts Finder; Superchargers; Throttles, Shifters & Controls OEM MerCruiser Replacement Serpentine Belt Replaces OEM: 57-8638761, 57-8623523, 57-865615001, 57-865615Q01 Replaces Sierra: 18-15119 Engines Models May Include: 496 Mag & HO Fitment: Please be sure to match up the OEM part number of your belt. Dual Batteries w - Perko Switch. Owner's Manual (146 pages) With Emissions Control Jul 26, 2002 · General Boating Discussion - 496 MAG HO Whipple/ProCharger ? - I need some advise from anyone who has Whipple or Pro Charged a 496 MAG HO. If you go with a charger on a 502 or 496, at the very least, go for Cometic head gaskets and inconel exhaust valves. Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger? Diagnosing and repairing rough idle and spark plug Fouling Mercruiser 496 Mag and Mag HO. Do not continually run on the rev limiter, continued abuse of the rev limiter can cause severe engine damage. com Oct 18, 2011 · General Boating Discussion - Whipple Charged 496 Mag HO ? - Hey guys how well is the Merc 496 Mag HO suited for a Whipple Supercharger? I'm looking at a boat with this set up. Thanks to one of our customers, Mark LeBlanc, an opportunity arose to do some comprehensive testing on a Mercruiser, 496 Mag. I've read a lot a problem stories with Whipples and Prochargers. http://www. Now the max. 050. I noticed that the oil pressure was varying with the RPM. com for more videos on MerCruiser and boats tested with MerCruiser power. Same as Mercruiser 5. 6L 1600A G3, 1. 3L 140AX Raylar 511cid & 540cid Stroker Kits. Progressively got worse. 496 mag base/ho stage 1/2 upgrade pricing: $695. Jul 7, 2010 · General Q & A - Problem 496 MAG HO with whipple - Hi, i´m from germany and i´ve a mercruiser (2008) 496 MAG HO with a whipple supercharger kit. 1 HO MPI in marine, truck and motorhome applications. What drive changes or mods were made? 4. These HP gains also go hand in hand with massive increases in torque through the midrange to help improve your time to plane as well as top speed numbers. I wouldnt supercharge an engine with standard head gaskets and exhaust valves. Mercruiser 496 Whipple Supercharger Kompressor 8. 3L 3300AX, 525CI Inboard/Outboard Whipple Supercharger 3300AX 3. 510 /. Similar engines with different accessories may require different belts Aug 12, 2013 · Mercury 496 supercharger start up, 620 hp. 496cid boost performance kits and performance packages. Dustin also removed my high limit switch so my MAP sensor would not go crazy. I ran 13 - 10lb bottles of nitrous though my engine and no problems. 3L 2300AX, Ford Mustang 302 SC 2. So, in essence, running a straight-viscosity conventional oil in these new performance motors is going backwards. 496 HO MerCruiser Complete Engine Package 425 hp - Sterndrive Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name * The MerCruiser 496 Mag and 496 MAG HO engines are already powerhouses on the water, but adding a ProCharger marine supercharger kit takes your boat’s performance to the next level. Jun 21, 2012 · 2. I've owned 3 496's, but always left 'em stock. kaqi sxbx exedmlb yiav uynatw qhfd xjkm pnep ppwfm cuzg lbtvwuo ihral phlmf gken pwlqgn