Be sure to Keep all Sniper EFI wiring routed away from any High Current Components. Holley Sniper EFI owners and Tech. Sniper Motorsports; SPAL Electric Fans; STS Turbo; Weiand; White Box; Mr. Gasket; Accel; Accel Motorcycle; PROConnect OE Wire Sets &Coils; Hays . Ignition Boxes, Sniper EFI HyperSpark CD Ignition Boxes, Capacitive Discharge, Digital, 535 CD Voltage Output To Coil, Black, Each. A relay kit our part number CCFKRL will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits. This article will cover the more advanced features of the Sniper unit, including the built-in ECU. Alright, I need some help with identifying and connecting the 12v switched ignition (stays hot when you hit the starter) wire for my Holley Sniper EFI system, Hyperspark system and electric fan setup up. Applied Chemical Specialtieswww.norosion.com, Summit Racing Part Number: SNE-556-151. Hitting both fans up to high speed only pushed the momentary spike up to just over 19 amps with the continuous draw of only 15 amps, which was surprising. The stock 1G simply couldn't handle the dual electric fans Brian was using and we were about to add an EFI system with electric fuel pump. Sort By. Note that we tested the fans mounted to a dummy radiator to create a more accurate airflow and amperage draw. How to tame engine heat with a budget electric fan system, 2020 C8 Corvette Engineering Interview with Tadge Juechter, Our Week To Wicked ’55 Chevy Sedan gets its color, Mid-Engine Corvette Concept & Engineering Cars 1960 to 2012, Week To Wicked: Did We Finish As Planned? In 1968, the godfather of New Journalism, Tom Wolfe, wrote a book called The Electric Kool-Aid Acid Test that we just had to borrow its title and make our own for this story. The Super Sniper EFI unit can take care of numerous extra functions that the “extra goodies” racers like to install require. Free Shipping; $210.95. We put the bung about 7 inches past the collector from the header, so far so good. The new-for-1968 Corvette came standard with Mako Shark II hidden windshield wipers. Eric is using his Sniper EFI system to control the fans using the default numbers in the Sniper software with low-speed on at 190-degrees F and off at … That's generally a good thing. With the decision made to go EFI, I ordered Holley’s PN 550-511K Sniper EFI Master Kit. This meant that the fans would be able to pull air across the entire radiator core. Sniper EFI instruction manual: LINK - page 17 & 50. Install the throttle linkage to the Sniper EFI throttle body. Please Note: The Holley Sniper EFI Self-Tuning Kit will require the use of an electric high-pressure fuel pump, this kit will NOT work with a mechanical fuel pump. But since the factory can't know how long wires you might need they tend to make them too long. With the advent of EFI systems like the Sniper EFI System more and more of the details formerly left to the installer are being completed at the factory to provide a "plug and play" experience. All Dress up; Valve Covers; Electrical; Headers; Superchips; Shop by Brand; Frostbite Cooling; SPAL Cooling ; BRIGHT EARTH; CATACLEAN; Speed Performance; View all Brands; Sniper EFI. The Sniper kit includes a purple wire that allows you to connect to the tach out terminal on the CD box and plug directly into the crank signal harness on the Sniper. It's not the amperage you should be concerned with but instead the total airflow capability. Eric found a relay box online that would mount four Bosch 30-amp relays with a nice plastic cover. Summit Pro LS Conversion Radiator and Fan Combo comes with two 13” electric fans and an aluminum fan shroud. I'm assuming that it doesn't mean anything, that the maxi fuses are rated at 32VDC? Electric Fan #1/#2 relay terminals (ECU ground signal scenario): Here is the finished engine compartment with the fans and wiring harness in place. These temperature switches operate in a similar manner, making a ground connection at 185-degrees, for example, and off at 170, with high side switches generally triggering at 195. The advantage to this is with a vertical flow radiator, both fans are pulling cooling air across the entire face of the radiator. For 1965-1968 Mustang applications we recommend using P/N: FTKEFI1 and for 1969-1970 Mustang applications we … Show per page. Essentially, when I push the clutch in and ease on the brakes to coast up to a stop light, the AFR goes lean (18:1 or so) and the engine stalls. They can also be used when dual electric fans are installed using one switching device. We apologize for this inconvenience and encourage you to visit. This relay drawing shows how each relay was wired to the fans. It has a built-in nitrous controller, for instance. - Day Four Build Recap, Week To Wicked: Two Days Left To Build our 1955 Chevy! Yes, terminal #85/Ground is the industry standard for good quality relays, with or without a diode. If the instructions are not fully understood, installation should not be attempted. For and efi system using electric fans this is probably the best option to control the fans through efi. Do you know if it would it hurt the ECU to connect a ground from a separate (rocker) switch, to the same lead running from the ECU to my fan relay (assuming the ECU is setup wired as a ground trigger scenario)? This keeps the amperage spikes from possibly damaging the relays. Sniper EFI instruction manual: LINK - page 17 & 50. Part Number: 550-552: Horsepower Rating (HP) 175: Emission Code: 3: Throttle Bore: 1.4375: Finish: Classic Gold: Injector Size: 100 lb/hr @ 58.5 PSI . The other relays are for the electric fans and water pump. Can I change the output to a +12V and wire things up the same as using the ground wiring instructions? Install the throttle linkage to the Sniper EFI throttle body. In this photo, we are testing the low-speed continuous amp draw at just over 10 amps. Is the fan supposed to go on when ignition is turned forward without the car started and engine cold? Taking less than 30 minutes to complete. This was powered by an Optima battery on the bench at 12 volts. At highway speeds, the first fan comes on occasionally, reducing the amperage load on the alternator and the Eric reports the engine rarely sees 200 degrees F even in hot Southern California summers. Essentially, when I push the clutch in and ease on the brakes to coast up to a stop light, the AFR goes lean (18:1 or so) and the engine stalls. Eric is using his Sniper EFI system to control the fans using the default numbers in the Sniper software with low-speed on at 190-degrees F and off at 180 with the high-speed triggering at 205 and back down to low-speed at 195. The passenger-side mounting lugs required a 1/2-inch spacer to allow the assembly to sit flat, but otherwise the fans fit really well. In some cases, way too long. Introduced you to Holleys Sniper EFI 4150 Super Sniper EFI a TBI-style fuel injection system that can support up to a whopping 1250 HP. Many enthusiasts will question the cooling capability of a pair of small fans that draw less than 20 amps. For and efi system using electric fans this is probably the best option to control the fans through efi. Filtered water is the most efficient coolant and just needs help with minimizing corrosion. -HOLLEY SNIPER EFI TANK -HOLLEY SNIPER EFI -HOLLEY HYPERSPARK DISTRIBUTOR -FLOWMASTER MUFFLERS -FLAMING RIVER TILT STEERING COLUMN -DUAL ELECTRIC FANS -BILLET HOOD HINGES -BECOOL ALUMINUM RADIATOR -ALUMINUM EDELBROCK WATER PUMP. Product Specifications. Operational Assessment Function : Yes No See Notes Wipers Horn Temperature Gauge Tachometer Runs Oil Pressure Gauge … With the fans installed and the wiring complete, we fired up Eric's big-block and allowed it to warm up and the fans triggered at the appropriate temperatures. It’s economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! They can also be used when dual electric fans are installed using one switching device. Taking less than 30 minutes to complete. Product Specifications. Public group. Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Sniper Motorsports; SPAL Electric Fans; STS Turbo; Weiand; White Box; Mr. Gasket; Accel; Accel Motorcycle; PROConnect OE Wire Sets &Coils; Hays . All four of mounting lugs lined up with the mounting flange that was originally for the engine-driven fan shroud. Anyone have a Holley Sniper EFI setup and use it to control electric fans? Public group. For 1965-1968 Mustang applications we recommend using P/N: FTKEFI1 and for 1969-1970 Mustang applications we … This was one of the major reasons for choosing this offset twin-fan arrangement. (Pictures attached) My car is a 79 302 mustang (pace car if it matters). It's perfect for any vehicle that came standard with a 2300 Holley Flange like some Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Mustangs, Thunderbirds, Cougars and more. WARNING! Fans are controlled by the sniper ECU and I have a relay which shuts off the fans while the engine is cranking via the output on the starter relay. Holley recently introduced their Sniper EFI system. It will be installed on my 1970 Javelin 390. With the advent of EFI systems like the Sniper EFI System more and more of the details formerly left to the installer are being completed at the factory to provide a "plug and play" experience. Show per page. 3. Yes, terminal #85/Ground is the industry standard for good quality relays, with or without a diode.Sniper EFI instruction manual: LINK - page 17 & 50. Anyone have a Holley Sniper EFI setup and use it to control electric fans? If the instructions are not fully understood, installation should not be attempted. … This instruction manual must be read and fully understood before beginning installation. Eric controls the low- and high-speed fan speeds with the Sniper software pulling the initial fan on at 190 degrees and the high-speed fan to come on at 205 degrees F. If you have A/C you could also set the second fan to come on with the compressor. All Speed Performance; Air Fuel Delivery . That's generally a good thing. - Day Two Build Recap, Week To Wicked: 1955 Chevy – Day One Build Recap, Say Hello to the En Fuego Six-Oh Junkyard Engine, Spectrum Spanning Pair of First-Gen Camaros, Convert 1968-72 Corvette Hidden Wipers to Detroit Speed Electric. Holley Sniper EFI 550-552 Holley Sniper EFI Autolite 1100 - Gold . It will be installed on my 1970 Javelin 390. First, the fan and shroud assembly was slightly wider than the El Camino's radiator core with built-in mounting points. Eric did some research and ran across information on a dual fan assembly originally intended for a 1995-'00 Ford V-6 Contour that appeared promising. Another big reason Eric liked this fan configuration is that both fans were two-speed models. Yes, terminal #85/Ground is the industry standard for good quality relays, with or without a diode. Timing Control Components as well! The issue with large fans is not so much the continuous amperage draw, but rather the initial amperage spike. Remote Relay may be required for some applications. He had just added a DeWitts aluminum radiator but it was now time to upgrade to electric cooling fans to replace the large, 17-inch engine-driven clutch fan. The fan on and off temperature setting can be set by the user on the Holley Sniper EFI. The only way to know for sure was to buy one from Summit Racing and dive right in. It can also be used with boost, has several additional programmable inputs and outputs for things like fans and can be connected to a CAN BUS for laptop-based tuning. Electric Fans; Mounting; Wiring Harness; Speed Performance . The whole system was mounted on an aluminum sheet that he placed under the driver-side inner fender to hide the wiring. But that's where Wolfe's tale and ours conclusively diverge. Eric lined up the shroud so it was level to the radiator top tank and marked mounting holes. Even more, if there is an upgraded ignition available, the Sniper will work fine with it as well. I used Spal electric fan mounting brackets to mount the fan to the radiator and it turned out very neat. This blog post will take you through the details. If your existing ignition works with a carburetor then it will keep working with the Sniper EFI System. I currently run on the pane and control dual fans with a Volvo controller and BMW sensor. Operational Assessment Function : Yes No See Notes Wipers Horn Temperature Gauge Tachometer Runs Oil Pressure Gauge … Create a switched power trigger for other electrical devices gallon, 1982-87 long bed ; NOTES, the! 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