Dominator carb part number holley performance products. And by far, the most popular carb still in use is the holley carb. Classic dominator carburetors feature an aluminum main body with a contoured venturi inlet for balanced. Modern tuning techniques for holley carburetors dragzine.
Dominator carb part number i have a dominator and was wondering if anyone knows what the part number would be. The conversion kit adds the rear metering block along with the required different metering block gasket. Wagner, 0965819604, 9780965819602, protech enterprises, 1997. This easy method is a excellent harley tech tip that applies to all harley designs from 1989 to 2006 that use the cv frequent velocity fashion carburetor. Cv performance harley cv carburetor mixture tuning. Thirty, forty, even fifty years ago, if you looked under the hood of any modified or performance car, you more than likely would discover a holley carburetor lurking there. Rooted in racing, spectre performance designs and builds every product with the same goal in mind the best performance in the market proven on the racetrack. Dominator carburetor ring l carb ring l carb tool tray. So, is bill equally impressed with its performance. Skills, book 5 skills, john jackman, wendy wren, apr 20, 1998, english language, 96 pages. It has been refined over the years and has received its biggest change ever.
The carburetor must perform flawlessly in a wide range of car motions. Carburetor repair rebuild kit keihin mikuni carb parts. Carb science series accelerator pump tuning for holley carburetors. The 4500 dominator carburetor is a great choice for many high powered engine combinations we have a calibration for this carburetor whether your ride lives on the street or the strip.
How to tune a 750 double pumper holley carburetor it. This quality book gives a detailed view of basic carburetor functioning, modifying for performance applications, custom tuning for street, racing, offroad, turbocharging, economy, and other special uses. With a whole generation of enthusiasts far more familiar with laptops, tuning by keystroke, and. Before you begin to tune your carburetor for your particular vehicle, you must get a. Smi carburetor street performance holley 4500 dominator. Now, holley efi products power these cars and are dominating the performance world. By david chantrell adelaide, australia on monday, october 12, 2009 02. Nickerson performance competition carburetors, marine. The holley gen 3 ultra dominator carburetors include holley hp fuel bowls that. Between the time we completed the installation on the 1970 olds and the writing of this chapter, 30 days have passed. Considerable mystery surrounds the tuning of the secondaries on a holley carb. The dellorto dhla installation and tuning guide for harley. Dominator air cleaner velocity stack for sale in south.
Holley performance products cannot and will not be responsible for any. Covering the entire process, from removing the carburetor to cleaning, inspection, replacing parts, complete overhaul and reassembly, then reinstalling the unit back in your vehicle and performing tuning and adjustments, this is the complete guide to get the most. In fact, it is not at all complex, but it can be time consuming. Height, aluminum, polished, dominator carb flange, square bore 4barrel manifold flange, each 2 part number. Carb dominator vs 4150 style archive factory five forums. I recently spent several days reading books about efi idle tuning and improving my engines idle quality. Remember on all our 1050 based dominator carbs they can be made into a complete 2 circuit by simply plugging that intermediate circuit shut as well there is a jet there for that. Holley also has a kit for gen 3 dominator carbs that is very compact. The motor only used 850 cfm on the dyno, and it has great throttle response.
Hoping someone can point me to a detailed tuning guide. Holley has been the undisputed leader in fuel systems for over 100 years. The mechanically operated, double pumper carburetors seldom come with an electric choke. The domino effect of carb tuning for a street engine, one way to lean the partthrottle airfuel ratio and improve throttle response would be to reduce the primary jet size slightly assuming the primary circuit is a bit rich. In truth, a welltuned carburetor can be nearly as effective as a welltuned efi.
In fact, i believe the holley hp dominator ecu is more sensitive to idle tuning idle algorithm, than the commander 950 is. Holley carburetor full power circuit calibration guide. Holley carburetors paperback july 24, 1999 by dave emanuel author 4. We first build a cfm curve based on engine specifications, then plot a fuel curve based on an application profile. Holley sniper efi selftuning fuel injection systems 550511 free shipping. I finally achieved, what i consider, an excellent idling engine. The idle bypass is preset by holley and can be finetuned easily with a screwdriver. The first thing i do is get it about halfway warmed up, 2 or 3 miles. The numbers on the air horn are 12r8795b and l9375 and 2583. Additional engine troubleshooting section for issues commonly mistaken as carburetor problems.
Holley has been a bestselling subject for years, and this muchneeded update guides you through the traditional 4150 double pumper, dominator, and 4160. What has changed are the tuning tools available to us. All instructions and the ezjust are intended for a harley cv carburetor only. Nelson english has been specifically designed to ensure that you cover the basics of the. Specializing in custom designed high performance competition engines and carburetors for nhra, adrl, andra, and bracket racing applications. While efi tuners routinely use this new technology with great success, surprisingly few carb owners have. Built per your application fully machined main body high flow off road needle and seats adjustable air bleeds teflon seals and nonstick gaskets completely calibrated for your engine combo off road floats double step dog leg boosters or annular boosters per application american made billet metering blocks with fully adjustable emulsion circuit test. High quality polished casting with greater frontal area, increases air intake, has adjustable bases, and all hardware and filters are included. Road race carburetors the demands placed on a road race carburetor are quite different then most other types of racing. This applies to cv carbs, but some of the theory will apply to any carb, once you understand the adjustment options and circuits. This carb has the double bolt pattern baseplate and will fit the 4500 intake. Often, many enthusiasts first modification is swapping out the factory induction system for a new holley 4barrel carb and intake manifold.
Used for high performance or larger displacement engines, they are infinitely tunable. Im currently doing some research on dominator vs 4150 style carbs assume similar cfms 1050 to make a decision between them. Restart the engine, with the spark still set fully retarded and the throttle at a fast idle, slowly lean the mixture by winding the mixture control closed clockwise until it the engine just. I cant find anything after days of web searching on tuning a 4500 for a street car. Holley 550849 holley sniper efi selftuning kit 2300 flange carburetor replacement throttle body. Its simple design and near infinite adjustability have long made it a favorite among enthusiasts. The yellow pump cam is a separate part number 2081 intended for dominator carburetors.
The gen 3 ultra dominator features a brand new mainbody, brand new stateoftheart. In david vizards how to super tune and modify holley carburetors, best selling author vizard explains the science, the function, and most important, the tuning expertise required to get your holley carburetor to perform its best for your performance application, whether its. Congratulations on your purchase of holley ultra dominator series carburetor. Anytime you rejet or change exhaust or air cleaner intake it is suggested to adjust the mixture. Holley redesigned its legendary 4150 carburetor for racers, new. Holley carburetors shows you how to select, install, tune, and modify all popular holley performance carburetors. How to super tune and modify holley carburetors david.
Holley efi mustang interior nhra pro stock holley performance ignition timing summit racing nascar sprint cup muscle cars autos. Tuning your harley davidson carburetor is simpler than most feel and can be carried out with a handful of common tools. Make a visual inspection of the carburetor, looking for any missing parts, bent levers, or any possible shipping damage. However, sometimes a little more finetuning is needed because the customer has a fairly radical street setup with a big cam with lower than normal intake vacuum, or the carb is not properly sized for the engine it is being used on. This scoop can go on 671 thru 1471 blowers using the 8.
Engine testing all carburetors prior to shipment ensures that when a new qft carb is bolted on an engine, it will start, idle and perform up to the customers expectations. The main system is designed to operate and flow enough fuel either way as a 2 or 3 circuit. Be sure to check out all of our products from moroso performance products including moroso performance products carb covers and hats and moroso performance products carburetor hats and covers. Integrated idle bypass valve allows for adjustment of idle while maintaining correct. Blower shop dual air scoop for 4150 carbs polished no air filters holley 4150. The edelbrock 750 wouldve worked with an adapter plate, but then the hood wouldnt clear the air cleaner. Highly polished cast aluminum casting, marine carburetor air scoops look great. We build our carburetors one at a time and custom taylor each carburetor to our customers engine and application. Second hand pros dcvi 200 if you can reduce the vibration affecting the carburetor, it will improve the fuel curve and increase horsepower. Holley carburetors powered every monster energy nascar cup team and nearly every nhra prostock champion for four decades. David vizards how to super tune and modify holley carburetors. Holley dominator also made its debut in 1968, developed specifically for.
Powering a 2,000 hp smalltire camaro with holleys dominator efi. The street terror series dominators are in intended for vehicles with large displacement andor high horsepower engines that are driven frequently on the street. Holley 080908bk 1250 cfm gen 3 ultra dominator carburetor. After labeling all connections to the carburetor, carefully disconnect all hoses and lines. Holley 4500 carb rebuild kit dominator 1050 1150 1250 ebay. Mixture tuning on your harley davidson cv carburetor is a simple procedure that can easily be performed with basic tools. Tuning and assortment kits holley performance products. Original 871 bowers blower, with crager intake, two 6 month old custom built 750 carbs with barry grant bodies and holley bowls, dooley. The knowledge base for holley tuning is not likely to become a lost art. The holley comes off the shelf with support for up to 60 io channels. Holley dominator carburetors are designed specifically for making top end horsepower and torque in high end racing engines and are the perfect carburetor for the budget minded racer. Ive never used a dominator before, but what my research is showing is that the 4150 will have a much better throttle, especially w street driving, whereas the dominator will make another 1520hp on the dyno. After our flow bench work is done each carburetor is.
If you want to troubleshoot, rebuild and properly tune your holley carburetor, this doityourself manual by haynes shows you how. This time has afforded the opportunity to assess the systems performance. This scoop is the finishing touch for your blown hot rod with dual four barrel carbs. Lots of good, sensible advice from someone thats been doing carb tuning for a long time and can transfer. Efi systems are truly leading edge and offer the best selftuning fuel strate gies on the. Holley dominator series of carburetors that can deliver offtheshelf. While tuning the accelerator circuit can certainly. Jet performance 9375s2 jet model 4500 dominator stage 2 carburetors compare carburetor, model 4500 stage 2, 1,050 cfm, dominator, dual inlet, dichromate, each. In that time the holley dominator system has performed flawlessly.
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