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Product Summary

Universal Fit, Top and Base Housing Component, Black

  • 14-inch spun aluminum air cleaner bottom for strength and great looks
  • Up to 12 hp increase over drop base air cleaner
  • Flat base increases airflow to carburetor/throttle body
  • Reduced air inlet temperatures
  • Powdercoated satin black finish

Comes as a Kit

Key Specs

MFG. Part #91605136
BrandSpeedway Motors
ShapeRound

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Speedway Motors 91605136 Details

Help Your Engine Breathe with Our Flat Air Cleaner Base

Our 14-inch Flat Air Cleaner Base is just what your hotrod or race car needs to not only look its best, but to make more power too! This heavy-gauge spun aluminum air cleaner base features a single smooth radius for the airflow path, reducing airflow restrictions and turbulence commonly seen in typical “drop base” style air cleaners. These drop base air cleaners require the airflow to change direction twice as the incoming air moves up and over the drop base’s inner “bulge” for the air to reach your carburetor or throttle body. With our flat air cleaner base there are no restrictions, allowing increased airflow, which in turn makes more power! We’ve seen up to a 12 horsepower increase using this flat air cleaner base versus the traditional drop base. Further benefits of the flat base design include reduction in air inlet temperatures since the flat base pushes the filter media upwards into the air stream above the hood, moving the air cleaner out of the hot engine bay.

Constructed to Last

With heavy-gauge spun aluminum construction, our flat air cleaner base is strong and will not flex under pressure. You can use your choice of 14-inch air filter and top and still reap all the benefits of having a flat air cleaner bottom. We recommend one of our Sure Seal billet aluminum air cleaner spacers to compliment this base. for mounting. The spacer incorporates a rubber O-ring for a positive seal to the base of the air cleaner (don’t forget that carburetor or throttle body gasket too!).

  • 14-inch spun aluminum air cleaner bottom for strength and great looks
  • Uses standard 14-inch diameter air filters
  • Up to 12 hp increase over drop base air cleaner
  • Flat base increases airflow to carburetor/throttle body
  • Reduced air inlet temperatures
  • Cooler/denser air makes more power
  • Powdercoated satin black finish

Speedway Motors 91605136 Specifications

KEY SPECS
MFG. Part #91605136
BrandSpeedway Motors
ShapeRound
GENERAL
Housing ComponentTop and Base
Housing StyleSolid Top
Base StyleFlat
Fuel Intake TypeSingle Quad
Inlet Diameter (Fraction)5-1/8"
Inlet Diameter (Decimal)5.125"
Overall Diameter14.15"
Housing MaterialAluminum
Housing FinishPowder Coated
Housing ColorBlack
Offset0"
Hardware IncludedNo
Sold in QuantityKit