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Or you could use one of their 4Bbl TBIs on a 4Bbl manifold, or one of their MPFI systems. It's economically priced so you can have … The Holley Sniper EFI Quadrajet is a self-contained throttle-body injection system that's a direct replacement for spreadbore Quadrajet carburetors found on many classic GM vehicles. Holley 565-200 EFI Dual Sync Distributor, SBC & BBC (more details) Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high-quality dual Hall Effect sensors, and an MSD cap and rotor! I installed the Holley Sniper EFI system about a year ago so I thought it was time to write my review about the product. Holley just brought EFI within range - introducing Sniper EFI! I can’t say whether or not I made any major improvements in that area, but I didn’t hurt it either. Street Outlaw’s 1,100 Horsepower ManVan Is For Sale, On Lock Down With Stage 8 Locking Fasteners, Top 10 Mistakes To Avoid Before Hitting The Dyno, Sweet Street Chevy: Jim Rivera’s Twin Turbo 1955 Chevy, Gear Up For Accurate Timing With Milodon Gear Drive Systems, Why The LS Is Superior To The Small-Block Chevy. As far as I am concerned, the Holley Sniper system will be a permanent fixture on the small-block in my truck. The Autolite Sniper EFI systems are packed with one 100 lb/hr fuel injector that will support up to 175 horsepower and a 2 bar MAP sensor that will handle 14.7 psi. This throttle body EFI unit replaces the tired Autolite 1100 carburetor on early Mustangs, Falcons, and Comets equipped with 140ci, 170ci, and 200ci inline, six-cylinder engines. Sniper EFI products are part of the Holley Performance family and offer economically priced self-tuning fuel injection systems. Holley just brought EFI within range. In the original article, I mentioned I was not an EFI expert, but after some simple research – and with the help of the Holley tech line – I was able to inflict some simple adjustments to make the Sniper even better for my application.I started by adjusting the fuel prime – which squirts a small amount of fuel into the intake to aid in start-up. The weeks following the install saw me slowly increase the air/fuel ratio numbers to lean the system. I’m still more than happy with how the system is working, and as I stated I might do in the original article, I did some tweaking to see if I could increase fuel mileage. EFI is turned on. The Sniper Stealth EFI System is the great choice for carbureted vehicles that want to experience the benefits of Fuel Injection without giving up the classic look of a Holley Carburetor. To avoid that scenario, I slowly increased the lean-ness of the incoming charge until the engine just started to react negatively, and then backed off. The Sniper 2300 has only been on the market for a short time (2 months? For example, I increased the lean-ness of the idle until I noticed the engine didn’t want to run very well after the initial start-up, and coolant temperatures started climbing irregularly. Follow up. If on a budget, I highly recommend the Holley Sniper EFI system. To illustrate this point, we first compared the long runner LS6 to the short runner Holley Race Sniper. I backed it down to this setting. You may be able to retrofit one of these on a stock intake manifold. Holley Sniper EFI recently introduced their new line of intake manifolds for the Gen III Hemis. It's perfect for any vehicle that came standard with a 2300 Holley Flange like some Fairlanes, F100s, Javelins, Mustangs, Thunderbirds, Cougars and more. Sounds perfect as I have been waiting for a self tuning, economical system that can support boost for a long time. I just learned of the Super Sniper that will support blow thru and 1250 HP. Usually, deadlines don’t afford me the opportunity to go back and revisit an install I had done months prior. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. It’s not something that a lot of automotive writers are adept at doing. Normally, I’m one of those not-so-adept follow-uppers. Use of the I/O harness will also allow two ground switched outputs from the dash. I went as high as 16.9 and noticed the engine starting to surge. I have adjusted the basic mixtures that I am comfortable with adjusting, and I am going to say that I was successful: the truck still runs, and I didn’t burn up any pistons. Imagine--hard starts, hesitations, vapor lock and flooding are all replaced by EFI reliability at a cost not much above a high-end carburetor! This caused me to miss my installation window. Upgrade to Sniper EFI and get the tactical accuracy of EFI today! I didn’t change the WOT air/fuel ratio too much – yet. We will safeguard your e-mail and only send content you request. 1 Sniper Stealth 4500 (550-841 Shiny, 550-842 Black, & 550-843 Gold) Holley Sniper EFI FUEL INJECTION INSTALLATION MANUAL Find Holley Sniper 550-849K Holley Sniper EFI 2300 Two-Barrel Fuel Injection Systems and get Free Shipping on Orders Over $99 at Summit Racing! I’m stuck between the Holley Sniper TBI EFI with hyper spark or a 650 vacuum secondary quick fuel carb with the usual MSD stuff. If there is anything you see here that needs clarification please Contact Us. The Standard Sniper 2300 comes equipped with two 100 lb/hr injectors that will support up to 350 horsepower and a 2 bar MAP sensor that will handle up to 14.7 psi of boost. Life is too short to hassle with cold start issues, hesitations, flooding, and carburetor inconsistencies. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. In this video I install a Holley Sniper EFI 2300 on our 1967 Mustang family car with a matching fuel tank system. EFI is not something I was overly comfortable installing. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. 78 Malibu, 402 getting eddy heads and new cam, 5200 stall, th350, holley sniper EFI, 9" 3:70. Not only did the truck drink less fuel, it gained some drivability. What if I told you there was an economical way to put an end to cold start issues, hesitations, vapor lock, and even flooding? But this time, I made an exception. Before I installed the Holley Sniper EFI on my C10, I was skeptical about the benefits I heard I would get. Sniper EFI gives you all the power and reliability of electronic fuel injection with none of the tuning issues commonly associated with carburetors. Leave that old 4-barrel to rest and bring in a new era of performance, reliability, and fun with a Holley Sniper EFI system! My initial idle air/fuel setting was 13.1. All Rights Reserved, This error message is only visible to WordPress admins, Dual Sync Distributor, Chevrolet Big Block Tall Deck 565-204BK. I will start from the installation to a completely running car. One thing to keep in mind: go too far and engine damage can result. © 2020 Power Automedia. All rights reserved. The installation was not as easy as Holley makes it out to be with the 4 simple wire advertising mumbo jumbo, but I imagine it would be easier if you already a few things installed on your car … The initial settings I chose were a happy medium between rich and lean, and as I said, initial mileage and drivability improved. The new Sniper family of Throttle Body EFI systems incorporates the ECU … Running this thing with a [Holley] Sniper (the carb-lookalike throttle body injection EFI system) and then leave the Sniper throttle body on, disconnect all of the fuel and electronics from it, and run the multi-port injection.” What Morris is proposing is about as fair of a test of only the fuel injection system as we’ve ever seen done. Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. © 2017 Power Automedia. You have a choice of a Fabricated Intake Manifold or the Race Series Fabricated Intake Manifold.These manifolds (race/off road usage only) provide a cost-effective alternative to the high-performance sheet metal-type manifolds, yet each manifold is precision fixture welded, … This is great information that can only get you closer to an ideal solution. Parameters not connected to the Sniper EFI can be monitored on the digital dash using the optional I/O harness part number 558-432. A central point of tech info and knowledge from the Holley team and Sniper EFI users. Many have ditched em and run Holley now. Remember, this is not a later model Vortech engine with better cylinder heads. To say I’m happy with the results is an understatement. I started out at 13.1. Not the picture of efficiency when new. This is one area that too much really is a bad thing. I couldn't get the extra 20 feet without returning the entire kit. When the truck was getting fed through the Quadrajet, my highway mileage was 10.5 to 11.0 miles per gallon. During normal cruise-mode on the Interstate, I slowly leaned the air/fuel ratio (increased numbers) until I noticed the engine starting to surge slightly. No more long hours of scrapping together OEM parts, learning how to tune on a laptop, or working through hundreds of hours of wiring diagrams just to hear your engine spit and sputter in the garage. Holley really has the EFI conversion system down, and has great customer service. The “at cruise” air/fuel setting I settled on is 16.5. In the original article, I mentioned I was not an EFI expert, but after some simple research – and with the help of the Holley tech line – I was able to inflict some simple adjustments to make the Sniper even better for my application. Holley Sniper EFI owners and Tech tiene 12.570 miembros. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! These kits are the most complete Sniper master kits you can buy for your F or 2F powered Lan All rights reserved. After a few weeks of “tuning,” the truck is happy with a 13.9 setting. Put an end to cold start issues, hesitations, vapor lock, and flooding. This is the original 1979 350ci small-block. Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Not that Fitech has a bad reputation (check out the reviews on Summit Racing and Jegs). It’s running great. Hell, even NASCAR runs Holley EFI. With a retail price of just under $1,000 (depending on options chosen), the kit is touted as a bolt-it-on-and-go solution for an easy EFI upgrade. This easy-to-install system is self tuning--no computers required. Are Your Hot Rod’s Fluids Ready For Summer Cruising? I started by adjusting the fuel prime – which squirts a small amount of fuel into the intake to aid in start-up. Summit Racing carries Sniper EFI throttle body kits as well as Sniper EFI fabricated intake manifolds designed to maximize your vehicle’s power while going easy on your budget. Introducing Holley Sniper EFI 2300! Now, not as popular because of quality issues and very poor customer service. Personally, I’m an old school guy and have not had a lot of experience with fuel injection. Next came air/fuel ratio adjustments. The Sniper EFI broadcasts data channels to the Holley EFI 7” Digital Dash via CAN bus connection. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Once such entry is Holley’s new Sniper EFI. Holley has an EFI Hyperspark distributor for the 300cid, Part #565-318. I also noted that after some time, I could change those values as I saw fit. As far as a fuel mileage increase? When I finished the install on my C10, I set it as follows: 13.1 at idle, 14.2 at cruise, and 12.9 at WOT. How does 14.0 to 14.5 on the highway sound? I just don’t trust being able to drive cross country if I wanted. After installing the Sniper and running for a few weeks with the initial air/fuel settings as mentioned, I saw roughly 1 ½ to two-miles per gallon increase. Chevy Hardcore NEWSLETTER - SIGN UP FREE! The Holley Sniper master kit looked good and was packaged well but only came with 20 feet of EFI hose vs the advertised 40 feet. Put an end to cold start issues, hesitations, vapor lock and poor throttle response. You see, Holley has done away with the ECU box entirely! 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! I know that might not be as impressive as a late-model vehicle that gets 18-plus mpg on the highway, but that would be comparing apples and oranges. Holley Sniper EFI has arrived and it's here to change the traditional ways of thinking about electronic fuel injection. The install was completed on January 20, 2018, and it is now April 3, 2018. But has it gotten any better. We install a Holley HyperSpark distributor to go along with the Holley Sniper EFI to enable more control of the ignition timing on this 1965 Dodge Coronet. I think I’m done “tuning” the Sniper system, and the truck still runs as good as ever. Introducing Sniper EFI 2300 - Put an end to cold start issues, hesitations, vapor lock, and flooding. Holley’s vast Sniper EFI product line just got bigger with the introduction of our one barrel Sniper. I like everything about the sniper but am worried about price, long term reliability, and having to deal with computer crap. Let’s face it, I had no previous experience before this. Holley EFI -> Sniper EFI-System -> Hur du väljer ditt EFI-System -> Unlike its other 2-barrel brethren, the Holley 2300 flange gives you some options. As a refresher, the Sniper EFI kit I installed is rated for engines developing up to 650 horsepower. As I stated in the original article, I really have no background in EFI tuning – and even less knowledge of computer programming, so, upgrading to EFI had to be idiot proof. Fuel maps and so on. I then pulled over and enriched the fuel mixture (lower numbers). Sniper EFI throttle bodies utilize OEM style TPS and IAC modules for dependable and serviceable use. I used the Holley Sniper Master kit PN 550-511k. One of the great features of Holley’s Sniper is the ability to set your air/fuel ratio (AFR) where you want it. If your goals exceed 175 horsepower or 14.7 psi, we recommend using an intake manifold with a different bolt pattern, such as the Holley 2300 2-barrel or Squarebore 4150/4160 and the corresponding Sniper EFI … Leave that old 4-barrel to rest and bring in a new era of performance, reliability, and fun with a Holley Sniper EFI system! A few months have passed, and I am certain you would like to know if it is actually delivering any substantial benefits. Holley also makes a 2Bbl Sniper EFI BBD for the inline 6 Jeep that supports up to 350HP. Could it really work that well? 26 X 8.50-15 M/T slicks 09 Nissan Titan tow vehicle 94 camaro stick shift toy. Yes, it varies a small amount, but my pressure on the load pedal and the amount of fuel I put into the tank at each fill up can vary a small amount as well. That’s 10 weeks that I’ve been driving the Cheyenne since the install.
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