Rick Pirrone
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- Apr 22, 2011
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whats the difference with these os needles
- Thread starter Rick Pirrone
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Rick,
I used the 9B needle, but be careful that they are tight and aligned up properly.
I am going to in flight needles instead. They need to be mounted vertical for best
results. If running horizontally check to see if they move at all with your flow meter.
Good Luck,
Mark Sholund
I used the 9B needle, but be careful that they are tight and aligned up properly.
I am going to in flight needles instead. They need to be mounted vertical for best
results. If running horizontally check to see if they move at all with your flow meter.
Good Luck,
Mark Sholund
Rick Pirrone
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- Joined
- Apr 22, 2011
- Messages
- 427
hi mark
thanks i am building a new twin soon and was considering switching over to fixed needles instead of the remote ones
but wasn't sure what the difference of these were from tower
thanks heaps
- Joined
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Your top link is for a 21 sized needle, so I'd guess a smaller orific and finer taper to the needle
The second link is for a 9B carb, which is a carb for larger engines,,, the 9B carb is commonly used on the CMB 67's & 80's = more flow.
Rick Pirrone
Well-Known Member
- Joined
- Apr 22, 2011
- Messages
- 427
cheers rick thanks heapsYour top link is for a 21 sized needle, so I'd guess a smaller orific and finer taper to the needle
The second link is for a 9B carb, which is a carb for larger engines,,, the 9B carb is commonly used on the CMB 67's & 80's = more flow.
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