Type 3 & 4 EPC or 34 ICT Air Cleaner Type 3 & 4 EPC or 34 ICT Air Cleaner Air Cleaner for Kadrons Air Filter Assembly for Weber DGV, DGAV & DGEV Outerwears for Air Cleaners, All sizes - Red, Blue, Black and YellowWritten It may upset carberation causing the engine to run lean,  but the main issue is that it will allow dust and debris to enter the cylinder causing premature wear, or if a large enough item entered potentially complete failure of the engine. Written Besides the fact that the carburettor/injection system is calibrated to run with an air filter, the engine will suck in all sorts of particles other than air, and they can cause many problems, not least accelerated engine wear!Written Removing the air filter will upset the fuel to air ratio, making the engine run lean.  Since engines generally run lean anyway, it will run even leaner.  More air, less fuel.  This has the effect of making the engine run hotter and produce less power than it can.This, of course can be fixed by rejetting the carbs. 

The fuel to air ratio will be fixed and the engine will run correctly.The biggest problem with running without an air filter, is that you will be dumping dirt into the engine.  Air is dirty, it has lots of crap in it that you don't want in your engine.  When you ride your motorcycle, road dust and debris get kicked up into the air by your motorcycle and by other vehicle around you.  Without an air filter, some of this gets sucked right into the engine.  Those abrasive particles start sanding down the surface of your cylinder walls, your rings, your valves and valve seats.  intelli pro intelligent air purifierEngine problems much sooner than you would ever have expected.best smoke odor air purifierLook at an air filter than has been in use on a car for a year or two.  home air purifiers bed bath and beyond

Take it apart and look at what it collects.  All of that would go straight into the engine without that protection.Written Removing an air filter is an old trick to improve the Horse power of the vehicle ith hopes of cutting the inlet air restriction. But, removing an air filter would make your motorcycle weak and vulnerable (look at the polluted air around you). It would increase the running expenses, emit more smoke from the exhaust and pull your motorcycles MPG. The air filter helps the bike to filter the air entering the combustion chamber of the engine. Thus increases the engine life, enhanses the MPG and keeps the engine strong.Written Most bikes now are fuel injected. In this case it won't make any difference in how it runs. Carburetted bikes will run a little lean without air cleaner, but only at wide open throttle. You can fix this with a one size up on the main jet, but for ordinary driving, you won't even notice that. But in both cases, you will wear out the engine faster, especially if you live in a dusty environment.

It's a dumb risk to take. CFD 4150 4 Barrel Air Cleaner Bases And many other quality performance products dealers! Use Firepower Base AC10710 for this style and for tall, flat top choke housings. 1.39" Choke Tower Height. Use Firepower Base AC10709 for short and flat choke towers. 1.05" Choke Tower Height. holley 4150 air cleaner bases Unlock the true potential of your street or race carburetor! easy power and torque gains Don't do this to yourself! Stop chasing the latest and greatest from people that are not airflow and filtration experts. We have over 70 years of experience designing sophisticated air cleaner systems. R2C's patented CFD bases will outperform every air cleaner base made today. They are extremely strong, will not bend and deflect and seal filters even under the most grueling circumstances.  Firepower CFD bases allow the use of large air filters which are vital for maximum, undisturbed air flow throughout the longest and dustiest of races.

Do not be deceived and cause yourself unnecessary issues!  As racers across the world know, the race proven combination of an R2C Firepower CFD base and Pro Series race filter will serve you extremely well in every condition you will encounter! Months of design evaluation using CFD and flow bench testing, followed by extensive dyno and track tests (now well over 1000 independent pulls!) conducted by the most respected names in race engine and carburetor assembly, have resulted in the best flowing, highest power producing air cleaner bases for Holley 4 barrel race applications. Every application from Stock Cars to unlimited Late Models and Big Block Modifieds have achieved significant gains in power and response/driveability. R2C engineers developed each smooth entry, precision base shape to augment the venturi profile of the popular 4150 series Holley carburetor, resulting in dramatically improved entry profiles, reduced restriction and a much stronger and consistent venturi/booster signal, allowing precision racing carburetors to perform at optimum levels and engines to produce increased power and torque.

When used in conjunction with R2C Late Model/Modified air filter configurations, nothing comes close to the performance advantage R2C CFD 4150 4 barrel bases offer racers in applications from Stock cars to the highest horsepower open engines. Patented Firepower CFD 4150 4 barrel air cleaner bases are offered in three configurations, allowing racers to select the precision contour that maximizes overall performance based on their individual applications. Strong and durable, R2C CFD bases won't dent or deflect, causing filter sealing issues. More Horsepower and Torque than any racing air cleaner base available today! Patented, smooth radius profile entry design makes more power 3 CFD 4150 shaped flow director configurations to choose from Ultra strong, composite Construction - No bending, dents and it runs cooler. Contact your favorite performance parts retailer Modified and Late Model Engines Dirt Modified dyno testing 696 HP using R2C Firepower  CFD 4150 race air cleaner base - w/2 pulls at +18 HP!