Product Summary

Universal Fit, Base Plate Housing Component, Natural

  • Flat base increases airflow into the engine
  • Up to 12 hp increase over standard drop base air cleaner
  • Reduces air inlet temperatures to engine
  • Works with all standard 14-inch round air filters
  • High-strength aluminum design
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Key Specs

MFG. Part #91011069
Overall Diameter14.25"
ShapeRound
Housing MaterialAluminum
Housing FinishNatural
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91011069 Details

  • 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

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!).

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 91011069 Specifications

KEY SPECS
MFG. Part #91011069
BrandSpeedway Motors
Overall Diameter14.25"
ShapeRound
Housing MaterialAluminum
Housing FinishNatural
GENERAL
Housing ComponentBase Plate
Base StyleFlat
Fuel Intake TypeSingle 2/3/4-Barrel
Inlet Diameter (Fraction)5-1/8"
Housing ColorNatural
Overall Height1.60"
Material Thickness.063"
Sold in QuantityEach
NotesMinimum filter height required is 4"

Ratings & Reviews

4.9

11 Reviews

Overall Assessment

Customers are highly satisfied with the product, especially noting its confirmed qualities like the smooth intake of air and noticeable power increase. They praise its lightweight and robust metal quality with the potential for polishing. The product fits perfectly, even on vehicles where hood space is a concern, and can work effectively with thinner air filters. Compared to other air cleaner bases, customers find it superior in making power changes. They've even had success using it with other Speedway products, confirming its compatibility. Users highly recommend this product for its great quality and practicality. However, some find it a bit pricey.

4.9

11 reviews

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10

4

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Great

5.0

7 months ago

Parmeley Joseph

Phoenix

Verified

Awesome product

Would Recommend

Cheap horse power bump

5.0

a year ago

Sprint car

Cathay, ND

Verified

When it showed up, the inner base ring was dinged up, a minute with a ball peen hammer and it was in good shape.

Would Recommend

Product as described

5.0

3 years ago

Harpo

Memphis Tn

Verified

Smooth out intake air on a 698hp sbc in a 84 Silverado

Would Recommend

Re: mixed opinions on V-stack, issues resolved.

5.0

4 years ago

Samuel

Fairview, TX

This V-Stack is nice and lightweight, a tad on the expensive side. You may need a thin air filter to make this V-Stack work in areas where hood clearance Is an issue.

Would Recommend

would buy again

5.0

4 years ago

Dean

Fulton, Ill

Verified

fit perfectly

Would Recommend

This was a good buy.

4.0

4 years ago

Taz

Stockton

Verified

The metal is rigid and could polish up if you want.

Would Recommend

Fits great!

5.0

4 years ago

Lazermagriff

Pacific Northwest

Verified

Fanciest air cleaner base ive ever owned

Would Recommend

The base makes great power bid change from the k&n 2bbl base

5.0

5 years ago

Fergie

Lennox sd

Verified

I use on my alky 2bbl. Felt power from the change

Would Recommend

Yes, I would buy this air cleaner base again.

5.0

5 years ago

Bob-Bob

CA.

Verified

I used this Mini Velocity Stack in conjunction with a 14'' Speedway Washable Air Filter and a Speedway 14'' Air Cleaner Top. I have dyno tested velocity stacks on my hill climb car and they do work better than an open carburetor top.

Would Recommend

Great quality

5.0

5 years ago

Sean

Edmonton, AB

Verified

Smooth transitions, great quality and light weight. A velocity stack with a full size filter! Even looking at trying to run the base with just a high flow filtered lid and a scoop.

Would Recommend

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Questions & Answers

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