Ground LDA pin?

[Dan!]

'Standard 1' is the stock position with the least 'range' (less angled).

'Standard 2' is the rotated position with the most 'range' (more angled).

The darker slightly red line is the best way to grind a stock pin for a stock pump (ground into 'Standard 1')


Dimensions:

'a' (Standard 1 max travel) - 2.41 mm
'b' (Standard 2 max travel)- 4.06 mm
'c' (Ground max travel) - 5.80 mm


'd' (Standard 1 and Ground min travel) - 0.40 mm
'e' (Standard 2 min travel) - 1.81 mm


And by using them figures you can calculate the 'range' (difference between min and max points) for each position.

Standard 1 has a range of 2.01mm (From 0.40mm to 2.41mm)
Standard 2 has a range of 2.25mm (From 1.81mm to 4.06mm)
Ground has a range of 5.4mm (From 0.40mm to 5.80mm)


So rotating a standard pin from Std 1 to Std 2 (which alot of people do) WILL give more fuel over the whole range, but will not really increase the range at all, only by 0.24mm. Grinding Std 1 to Ground will increase the range to 5.4mm (Which is 3.41mm more than Std 2).




Kapeesh?


(Darren/James, I appreciate you probably completely understand this, its more to help other people understand )