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620-15530
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500 EFI Bored Throttle Body 1000CFM
Hardin Marine has taken your factory Mercury Racing EFI throttle body and combined their precision machining and tuning experience into a power producing option for all Mercury 500/525 EFI applications.
These “Monoblade” throttle bodies flow 1000 CFM to match Mercury’s 525HP EFI engine. The “Monoblade” has self lubricating bronze bushings for the shaft to rotate on, knife edged stainless steel throttle blade, Stock OEM sensors and throttle cable mounts in the original location. 25 HP gain is available with recalibration of the ecu and the throttle valve.
Note: Port matching to the plenum chamber is required |
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620-15535
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HP525 Bored Throttle Body 1300CFM
Hardin Marine has taken your factory Mercury Racing EFI throttle body and combined their precision machining and tuning experience into a power producing option for all Mercury 500/525 EFI applications.
These throttle Bodies reinstall easily providing an OEM fit while offering improved performance and quality than the stock OEM units. A factory stock 1080CFM unit is CNC Machined, Ported, and finally flowed to 1308CFM. A new larger precision knife blade style throttle blade is then hand contoured and (Blue Printed) to the throttle body bore. This delivers Increased airflow, improved throttle response, as well as 10-15 additional horsepower. These units are sold on an exchange basis. Note an aftermarket flame arresstor is suggested (Part #625-5250) due to the increased throttle bore opening size |
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620-75325
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Mercury Racing 600/662/700SCM Stage 1 Kit
In order to take advantage of the performance calibration we need to let the engine breathe and process those gases efficiently. This is completed by down sizing the supercharger pulley to slightly increase air output. Next a beautiful billet high flow flame arrestor is introduced to allow the supercharger to draw the added air into the engine. Processing this added air will require cooling the engine just slightly as well as cooling the intake air charge through a bolt on water system upgrade to increase system pressure and intercooler efficiency, These power increase vastly improve onto plane times with a big gain in acceleration. By increasing the factory rpm limiter this gives customers the ability to greatly increase top speed MPH while running original props. The stock RPM limit of 5400 is modified to 6000rpm. This Stage 1
upgrade features a performance computer recalibration that increases the
maximum power output by more than 138HP* and 122 ft pounds of torque*.
Components Include:
- Stage 1 Performance computer recalibration
- High
flow Billet Flame Arrestor
- New Supercharger pulley
- Hi flow Intercooler
plumbing fitting kit
- Low temp high flow thermostat
- Performance computer recalibration
- All of necessary components to required to
make this system functional and reliable.
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620-75330
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Mercury Racing 600/662/and 700SCM Stage 2
The Stage 2 system provides even more power than stage 1 (approx 20HP more). This is accomplished through a more aggressive performance tuned PCM calibration as well as by increasing the supercharger output (increased boost) as well as a cooler set of spark plugs to increase combustion deficiency.
Kit Performance features:
- Hi-performance PCM calibration with MPH gains of up to 9-10mph
- Increased horsepower for improved top speed
- Increased low-end torque for decreased planing time
- Increased low, mid and high speed torque for better acceleration with improved throttle response
- Increased spark at low and mid speeds for increased overall performance
- Stock 5400 RPM limit is increased to 6000 RPM giving increased propping range and more power
- 91 octane safe (RON+MON)/2
- Stock idle, starting and drive-ability quality is retained
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620-75304
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"SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
This kit is an excellent choice for those just beginning performance
modifications on a MerCruiser Magnum EFI Series engine. This kit includes
the "SE" Special Edition flame arrestor that utilizes a high flow
K&N clamp-on style filter element and high velocity air inlet adapter which
increases air flow by as much as 20%. The included Flow Command adjustable
fuel pressure regulator allows you to tune to the proper air flow by allowing
adjustments from 25 to 65 PSI. |
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755-6835
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Stage 2 Upgrade for Mercury 525 EFI
Performance computer recalibration and a Custom High flow Billet Flame Arrestor, and Modified 1300CFM Throttle body(exchange) that increases the maximum power by more than 35HP* and 38 pounds of torque*. This upgrade will not only improve overall top end power but it also increases the low end power for a decrease in on to plane time and a gain in acceleration you can feel. The Preset Mercury racing factory rpm limit is also increased from 5400 to 6000 this is the point the the factory power band peaks. Part # 755-6835
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755-6840
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Stage 3 Upgrade for Mercury 525 EFI
Performance computer recalibration, Custom High flow Billet Flame Arrestor, Modified 1300CFM Throttle body(exchange). Dart Pro1 Marine Cylinder head kit, pushrods, ARP Cyl Head mounting hardware, Head, Intake, and Exhaust Gaskets. This kit has shown proven increases taking the maximum power out put up by more than 75-85HP* and 80 pounds of torque*. This upgrade is for the person seeking maximum power out put from their naturally aspirated Mercury racing 525 engine package. This kit offers a broad increase in power across the entire rpm power band. The Preset Mercury racing factory rpm limit is increased from 5400 to 6000 to take full advantage of the new components increased air flow capabilities. Part # 755-6840
Kit Performance features:
• 6000 RPM limit vs. stock 5400 RPM limit giving increased effectiveness of peak power band.
• Hi-performance PCM calibration
• Increased horsepower for increased top speed
• Increased low-speed torque for improved out of the hole launch
• Increased low, mid and high speed torque for better acc. & throttle response
• Increased spark at low and mid speeds for increased engine efficiency
• 91 octane safe (RON+MON)/2
• Stock idle, starting and drive-ability is maintained
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620-75305
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"SS" Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines Do you want quicker acceleration, faster planing, and increased performance of up to 15 HP? If so, the "SS" Super Sport tuning kit for your MerCruiser Magnum MPI engine is what you need. This kit includes the "SS" Sport Series flame arrestor that utilizes a clamp-on styleK&N element with our high velocity style air inlet. This kit include re-programming of your factory ECU in which we will modify both the fuel and spark curves as well as increasing your rev limiter and injector timing to 5400 RPM. This kit also comes with an adjustable billet Flow Command fuel pressure regulator that allows you to tune your air fuel mixture for optimum performance. NOTE: You will need to send us your ECU with this questionnaire for re-calibration. |
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121-1200
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Max Volt Catalyst Eliminator Computer
If increased engine performance is what you are after but have concerns about the catalyst equipment on your engine, then the Catalytic Eliminator Computer (CEC) is what you need! Designed specifically for marine engines, Maxvolt Performance worked with a team of marine electrical engineers to create a product this simple and gets the job done. There is no cutting or splicing of wires; everything is plug and play! And there are three ways to play! Your engine can be Aggressive, Mild, or Basic:
Aggressive: If you want to be aggressive and replace your stock exhaust system with a header system, then this is the product for you. We worked with the header design teams at Hardin Marine and other popular manufacturers to be sure their headers are manufactured to work with CEC. To be compatible, the header must be made to accept a pre-oxygen sensor!
Mild: If changing over to headers is too aggressive for you, then removing the catalysts but retaining the stock exhaust manifolds is the path for you. Depending on the engine, 10 to 15 horsepower will be gained by removing the catalysts and using the factory exhaust system.
Basic: If your boat has fouled its post oxygen sensors and is no longer under the factory warranty, then you know what it costs to have new sensors installed and the trouble codes cleared. For less than what your dealer charged, you can purchase and install the CEC and never have to worry about throwing that fault code again!
WARNING! This module is not to be used on emissions regulated waterways. The intent of this module is to allow the running of a catalyzed marine engine without the catalytic converters installed and without triggering any ECU error codes. With the engine operating in this condition, the emissions control system will be rendered inoperative. For this reason, do not operate the vessel on emissions regulated waterways.
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755-6830
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Stage 1 Upgrade for Mercury 525 EFI
Performance computer recalibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25HP* and 30 pounds of torque*. This upgrade will not only improve overall top end power but it also increases the low end power for a decrease in on to plane time and a gain in acceleration you can feel. The Preset Mercury racing factory rpm limit is also increased from 5400 to 6000 this is the point the the factory power band peaks. Part # 755-6830
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755-5983
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Custom Internal Flame Arrestor
Fits Big Block Chevy Supercharger Style EFI Induction Hat (Part #755-5980) |
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755-5980
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Big Block Chevy Supercharger Style EFI Induction Hat
So
if your like thousands of other people who are just either tired of the driving
habits of your carbureted supercharged engine or just want to try to stretch
that huge fuel bill a little farther then we’ve got the answer. KE has developed
this unique aluminum EFI injector scoop and throttle body to make your
conversion away from carburetors easier than ever. By enclosing the fuel
injectors inside the premium cast T356 aluminum scoop and adding a progressive
throttle linkage billet throttle body you can now merely remove your carburetors
and existing flame arrestor and install this system. This new unit will mount to
all standard inlet roots style superchargers. Add the EFI computer or management
system of your choice and you can atlas enjoy the luxury and drivability that
only fuel injection can offer.
* Note additional wiring and plumbing is required. This kit includes Standard aluminum finish scoop,
billet throttle body, mounting plate, fuel rails and stands, as well as quick a
connect wiring plug. |
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