What CFM is a ThermoQuad?

Wide-open, the “small” TQ was rated at 800 cfm, while the larger unit spec’d at 850 cfm, blowing away the airflow capacity of any previous OEM Mopar four-barrel. While the ThermoQuad certainly had the flow to support big power, the timing of events curbed its chance at glory as a high performance carb.

What is a ThermoQuad carb?

The final Chrysler use of four-barrel Carter carburetors was the Thermo-Quad, which used a lightweight thermoplastic float bowl, on the most powerful Chrysler engines. Carter produced Rochester Quadrajet carburetors for their rival maker whenever demand outpaced Rochester’s ability to make them.

How do I identify my Thermoquad?

The carburetor number can be found stamped on the mounting flange face. Numbers like 6-2124 are casting numbers and do not equate to a carburetor number. To get the correct parts for your Carter TQ (Thermoquad), you need to match the carburetor number, which is found at the lower left.

How do you check a Carter carburetor?

The Carter AFB carburetors are roll stamped with an identification marking at the right front base of the carburetor’s mounting ear. The top line of the roll stamp identification has the carburetor identification number.

Who bought out Carter carburetors?

American Car and Factory
William Carter only helmed the company for 13 years before American Car and Factory bought the company, and continued to run it as a standalone company until 1985. Carter models are still produced today by Weber and Edelbrock.

Do they still make Carter carburetors?

Founded by William Carter in 1909, Carter built the St. Louis factory in 1915. William Carter only helmed the company for 13 years before American Car and Factory bought the company, and continued to run it as a standalone company until 1985. Carter models are still produced today by Weber and Edelbrock.

What does Carter AFB stand for?

aluminum four barrel
In 1957, Carter started marketing the AFB series carburetor, and it quickly became a widely accepted standard for the automotive industry from the late Fifties into the late Sixties. AFB stands for “aluminum four barrel” and this carburetor was used as original equipment on many OE performance engine options.

Did Carter make a Quadrajet carburetor?

Carter Carburetors built Quadrajet carburetors for GM cars from 1966 into the late ’70s.

Did Edelbrock buy Carter carburetors?

Is Holley better than Edelbrock?

As I mentioned before, right out of the box an Edelbrock will be better. However, if you’re a DIY guy who likes modding things around – Holley will be your best pal. The tuning is more responsive and less touchy than not only Edelbrock, but most other manufacturer’s carbs.

What does AVS stand for Edelbrock?

air valve secondary
AVS stands for air valve secondary, which describes the spring-loaded air-valve door. The Edelbrock carb uses a mechanical secondary but does not employ a secondary accelerator pump.

What carburetor will replace a Quadrajet?

Holley/MSD is thrilled to announce the release of Sniper EFI Systems for Quadrajet applications, which eliminate the need to continually rebuild 50-plus-year-old Quadrajet carburetors on classic Chevys, Pontiacs, Buicks, Oldsmobiles, and GMCs.

How many CFM is a stock Quadrajet?

Quadrajets can range anywhere in between 600 and 800 CFM. Most are rated 750 CFM or higher. Quadrajets are used by many GM street car enthusiasts; however, they are also disliked by just about as many.

What is a ThermoQuad?

The signature feature of the ThermoQuad was its unique phenolic center body, providing an insulating effect to the fuel, significantly reducing fuel temperature (a 20-degree average reduction, according to Chrysler). Although the concept was sound, the “plastic” main body immediately raised the suspicions of old-time mechanics.

How do I know if my ThermoQuad is maladjusted?

If your ThermoQuad stumbles, bogs, leans out, or runs pig rich, more often than not some aspect of the linkage is maladjusted. A key area to inspect is the underside of the phenolic bowl body. The buckets under the main wells were bonded in place when ThermoQuads were manufactured.

How hard is it to rebuild a ThermoQuad carb?

Although the ThermoQuad has a reputation for complexity, in reality the carb is fairly simple to rebuild. We’ll go through what it takes to get an old TQ ready for service, pointing out some of the common mistakes and trouble spots. Disassembly

What parts are in Carter TQ ThermoQuad?

Carter TQ, Thermoquad Includes carburetor kits, brass floats, accelerator pump, needle & seat, float valve, jets, choke pulloffs, choke thermostats, new and used parts. Carburetor parts for Chrysler, Dodge, Plymouth, International.