stunthanger.com

Engine basics => Engine set up tips => Topic started by: Bob Disharoon on February 18, 2007, 03:11:33 PM

Title: Fox35 needle valve
Post by: Bob Disharoon on February 18, 2007, 03:11:33 PM

What is the best replacement for the stock fox needle valve assembly..something that will bolt right on with no modification?..also, is such a modification REALLY needed for easier starting performance, etc.? thnx in advance, BOB ??? ???

Title: Re: Fox35 needle valve
Post by: Leester on February 18, 2007, 03:22:56 PM

I'm sure the moderator Randy Smith can set you right up. No guarentee you won't have to drill for proper size though.

Title: Re: Fox35 needle valve
Post by: RandySmith on February 18, 2007, 10:13:04 PM

Quote from: bob disharoon on February 18, 2007, 03:11:33 PM

What is the best replacement for the stock fox needle valve assembly..something that will bolt right on with no modification?..also, is such a modification REALLY needed for easier starting performance, etc.? thnx in advance, BOB ??? ???

HI Bob


The brand of NVA  will have no differance in teh way the motor  cranks ,but can have a huge differance in the running and the setting of the motor
The Best one in my opinion is the  PA style  Stainless  NVA, it is a bolt in direct replacement but is much finer , this makes it needle  much better ,

Regards

Randy Smith

Title: Re: Fox35 needle valve
Post by: Bill Little on February 18, 2007, 10:43:34 PM

I have used about every variation there is for Fox 35 NVAs.  ST, OS, Fox, and PA.  I will never buy another of any kind other than the PA again!  It fits perfect, and the collett nut locks with out having to use a wrench like on an ST.

Bill <><

Title: Re: Fox35 needle valve
Post by: Bob Disharoon on February 19, 2007, 07:17:55 AM

Thanks for the help..NOW then, how and where do I order one..BOB <= <=

Title: Re: Fox35 needle valve
Post by: brucefinley on February 19, 2007, 10:31:49 AM

From Randy Smith's PA Aero Products!  These are truly fine pieces.

Bruce

Title: Re: Fox35 needle valve
Post by: Bob Disharoon on February 19, 2007, 04:06:19 PM

I went to his site..nice stuff!..but could not find the pa nva after looking for 30 min...do you have the link handy?..thanx in advance..BOB H^^ H^^

Title: Re: Fox35 needle valve
Post by: Leester on February 19, 2007, 04:32:21 PM

Just give him a call 678-407-9376 or email.

Title: Re: Fox35 needle valve
Post by: Dick Fowler on February 19, 2007, 05:53:24 PM

I like the O.S.Max spraybar/needle valve assy. #22311000 . It is the same O.D. as the stock Fox spraybar ~ .134"  the ST spraybars are ~ .156" and choke down the cross sectional area.

Tower has them http://www2.towerhobbies.com/cgi-bin/wti0001p?&W=000443397&I=LXCR49&P=K

Title: Re: Fox35 needle valve
Post by: RandySmith on February 19, 2007, 08:36:03 PM

Quote from: Dick Fowler on February 19, 2007, 05:53:24 PM

I like the O.S.Max spraybar/needle valve assy. #22311000 . It is the same O.D. as the stock Fox spraybar ~ .134"  the ST spraybars are ~ .156" and choke down the cross sectional area.


Which is the  main reason I had the Stainless  PA  NVAs  made to fit perfect in both diameter and width , unlike the OS NVA these don't float around the hole because they are 1 1\16 of an inch too small at the case opening, and many times they will  leak

Regards
Randy

Title: Re: Fox35 needle valve
Post by: Phil Bare on February 21, 2007, 05:48:46 PM

Whats wrong with the Fox needle valve assembly?