What size throttle body is a Ford Fiesta ST150?
The stock throttle body size on the Ford Fiesta ST150 is 60mm in diameter.
The ST150, produced in the mid-2000s for European markets, uses a 1.6-liter Duratec engine paired with a 60mm throttle body in its factory configuration. This dimension is widely cited in official diagrams and maintenance guides, and is commonly referenced by owners and tuners when discussing performance modifications.
Stock specification and context
The 60mm throttle body controls the amount of air entering the 1.6L Duratec engine, contributing to the ST150's 150 horsepower output in European trims. The TB is part of a larger intake system and is matched to the intake manifold and ECU for proper fueling and performance.
Variations by year and market
There can be minor differences by production year and market; some early pre-production or special editions may show slight deviations, but the standard European ST150 is widely listed with a 60mm TB.
Common upgrade sizes and considerations
For those pursuing more power, many enthusiasts discuss larger throttle bodies as part of a tuning plan. The sizes most commonly mentioned in forums and parts catalogs include:
- 60mm (stock)
- 63mm (popular upgrade for higher airflow at moderate power goals)
- 65mm (larger upgrade for more aggressive builds)
Before swapping, note that larger throttle bodies require matching intake piping, possibly porting, and ECU remapping to avoid lean conditions and ensure proper idle, drivability, and warranty considerations.
Additional notes
Always verify exact specifications for your vehicle's year and market using Ford parts catalogs or a trusted dealer. Tools such as VIN-based part lookup can confirm the correct throttle body part number and diameter.
Summary
The Ford Fiesta ST150's stock throttle body is 60mm in diameter. Upgrades to 63mm or 65mm are common among performance-oriented builds, but require supporting modifications and tuning. Always confirm compatibility for your specific car before purchasing or installing a different throttle body.
Are the 5.7 and 6.4 throttle bodies the same?
So if you guys are wondering I've done some videos on this in the past i'll link them above for you guys. But this is a stock throttle body the 5.7. And the 6.4. Both share the same throttle bodies.
How much horsepower does a Ford Fiesta ST150 have?
147bhp
ENGINE & TRANSMISSION
Fitted with the Ford 2.0 litre Duratec engine, the power output is quoted as 147bhp at 6000rpm and 190Nm torque at 4500rpm.
What happens if a throttle body is too big?
The correct sized throttle body is critical to ensure you aren't placing a restriction in the inlet airflow that will limit power, however it's more common for people to fit a throttle body that's too large which then provides very poor control of airflow, particularly at small throttle openings.
What size throttle body is a Mk6 Ford Fiesta?
Ford Fiesta ST150 Mk6 60mm Throttle Body.
