Author Topic: Needle Setting on Fox .35 Stunt using ST NVA (Read 853 times)

David Ruff · « **on:** April 26, 2015, 06:02:08 AM »

Installed the ST .51 NVA in a Fox .35 Stunt. Just wondering how many turns open I should start with.

Thanks in advance.

frank mccune · « **Reply #1 on:** April 26, 2015, 07:04:24 AM »

Hi Dave:

Bring it to Hampden today after 14:00 for help or you may try 3-4 turns open and play it by ear.

Frank McCune

Robert Zambelli · « **Reply #2 on:** April 26, 2015, 07:35:52 PM »

Dave - I have tried that setup and had problems.
The ST spray bar is a larger diameter than the Fox and will restrict your intake.
Turn down the spray bar to .125 where it crosses the venturi.
Or, buy one from Randy Smith.

Bob Z.

bruce finley · « **Reply #3 on:** April 29, 2015, 10:59:40 AM »

Quote from: Robert Zambelli on April 26, 2015, 07:35:52 PM

Dave - I have tried that setup and had problems.
The ST spray bar is a larger diameter than the Fox and will restrict your intake.
Turn down the spray bar to .125 where it crosses the venturi.
Or, buy one from Randy Smith.

Bob Z.

could you drill the venturi instead? and what size drill bit would that be?

bob whitney · « **Reply #4 on:** April 29, 2015, 04:27:37 PM »

if u drill the venturi all the way through u will change the crank timing and it wont run the same ,Randys needle assby works great
if u have a drill press u can chuck the spray bar up and file it down on the part that is actually in the venturi. go slow and suport it while u file

Author Topic: Needle Setting on Fox .35 Stunt using ST NVA (Read 853 times)

David Ruff

Needle Setting on Fox .35 Stunt using ST NVA

frank mccune

Re: Needle Setting on Fox .35 Stunt using ST NVA

Robert Zambelli

Re: Needle Setting on Fox .35 Stunt using ST NVA

bruce finley

Re: Needle Setting on Fox .35 Stunt using ST NVA

bob whitney

Re: Needle Setting on Fox .35 Stunt using ST NVA