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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
final drive gear ratio Ford Fiesta ST 2014-2019 4.3:1 Final Drive – whoosh motorsportsIncreases Acceleration and 0 60 time. Direct Stock OE replacement. Genuine Ford Replacement Parts Parts Included: Crown Wheel Main Output Shaft Pinion 6th Gear Pinion *optional* Main Pinion Bearing (use drop down to select) The Original IB6 type Gearbox has a Final drive ratio which is designed primarily for economy not performance. by increasing the ratio from the original 3. 8: 1 to this 4. 3: 1 version you are effectively taking top speed away from
- Increases Acceleration and 0-60 time.
- Direct Stock OE replacement.
- Genuine Ford Replacement Parts
Parts Included:
- Crown Wheel
- Main Output Shaft Pinion
- 6th Gear Pinion
- *optional* Main Pinion Bearing (use drop down to select)
The Original IB6 type Gearbox has a Final drive ratio which is designed primarily for economy not performance.
by increasing the ratio from the original 3.8:1 to this 4.3:1 version you are effectively taking top speed away from sixth gear and adding acceleration.
Basic Principles
Motorsport transmission specialists world wide have been using this trick for many years to great affect.
The higher the final drive ratio the faster the acceleration through the gears to the terminal speed.
What will the new ratio do to the top speed ?
With a ratio difference of approx. 12-13% that effectively means a lower top speed of 13%.
At 7000 RPM it is approximately 155mph which is a little more realistic and gives the full use of the gearbox.
What will the new ratio do to the acceleration ?
With a shorter ratio and full traction there will be a direct increase in acceleration through every gear.
*NO discount codes will be accepted for this item
"The top of 3rd gear (you know this from data logging) goes from 88 MPH to 77 MPH"
"Top of 4th goes from 116 to 102MPH"
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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