Technical 40mm TB's

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Technical 40mm TB's

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we have a forum member tricker in denmark
who has provided FF members(myself included) with a bored out tb.
At this point it appears Tricker has stopped supplying these
its 40mm over the standard 32mm.(for SPI engines)
this allows more air to be drawn in and so raises power.

this can be used on engines in various states of tune.
i had it on my turbo.
fitment is fairly straightforward and instructions are provided.

these are best coupled with a good induction kit

torque raises by approx 10nm
top end bhp rises by approx 7hp
(on an n/a engine)

thanks too arc for the pic

original TB on the left

tb.JPG

check the guides section for fitment info

https://www.fiatforum.com/cinquecento-seicento/215849-40mm-tricker-tb-specifications.html

Sporty_5_Seicento has listed some 40mm TB measurements for anyone looking to make one

General Throttle Body Details

- The sleeve is completely flush with the face of the underside of the TB.

- There are four semi-circular slots filed into the underside of the sleeve as pictured.

- The two semi-circles in the end with the single pipe connection (sits towards the front of the car when fitted) measure;

- Width across top of semi-circle; 13.50mm
- Depth to centre of semi-circle from top; 5.45mm

- The semi-circle in the smaller of the chambers at the back of the TB measures;

- Width across top of semi-circle; 7.20mm
- Depth to centre of semi-circle from top; 2.15mm

- The semi-circle in the larger of the chambers at the back of the TB measures;

- Width across top of semi-circle; 12.50mm
- Depth to centre of semi-circle from top; 4.12mm


The spacer

- External diameter; 79.71mm
- Internal diameter; 39.97mm
- Thickness; 19.30mm
- Hole diameter (x2) 6.80mm
- Distance between holes; 63.50mm (approx, should match holes in TB)


The Gaskets (2 x sit either side of ally spacer)

- External diameter; 79.71mm
- Internal diameter; 39.97mm
- Thickness; 0.80mm (I assume most gasket paper can be used)
- Hole diameter (x2) 6.80mm
- Distance between holes; 63.50mm (approx, should match holes in TB)


Throttle body Sleeve

- External diameter; 42.35mm
- Internal diameter; 39.95mm
- Sleeve wall thickness; 1.20mm
- Length; 32.85mm
 
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