Fuel pressure on 51,3mm IDA.

[Kiel]

Hi.

How high must the fuel pressure be on a set of 51.3 mm ida, for max power ?  ( 3 psi )

The carburrators have bin fittet whit original weber 300 needle valve.

best regards

Thomas kiel

PS:    <a href="http://www.youtube.com/v/T0IsZAJPlgg" target="_blank">http://www.youtube.com/v/T0IsZAJPlgg</a>
 

[bang]

i run 0,3 bar on mine.

[SteveW]

I always ran mine at 3.5 PSI. Just beware of the small fuel pressure guages there not entirely accurate!

[BeetleBug]

If you get the 3.0 needle valves to seal with 3.5 psi you`re lucky. Remember that the glass needles are light and has bigger area = you do not need so much fuel pressue to deliever the same amount of fuel. I used 2.3-2.4 psi on mine, any more and the junk glass needles would not seal. Remember to check the float level carefully.

Best rgs
BB