Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
Putting a bigger carb in a TRX 3.3 (15k?) >

Putting a bigger carb in a TRX 3.3 (15k?)

Putting a bigger carb in a TRX 3.3 (15k?)

Reply

Old 03-19-2010, 09:10 PM
  #1  
Tech Initiate
Thread Starter
 
revo_maniack_2's Avatar
 
Join Date: Mar 2010
Posts: 22
Default Putting a bigger carb in a TRX 3.3 (15k?)

Hey, i have heard about putting a bigger carb (i think it is like an O.S. 15k carb?) into the traxxas 3.3 motors increases performance and tunability.. is it really that much better than stock? would you consider converting, or would you just not bother? What does it really do for you?
If you guys could answer my questions i would really appreciate it!
Thanks,
Later!
revo_maniack_2 is offline  
Reply With Quote
Old 03-19-2010, 09:51 PM
  #2  
Tech Master
iTrader: (45)
 
boomgagem's Avatar
 
Join Date: Jun 2009
Location: Dublin, GA
Posts: 1,577
Trader Rating: 45 (100%+)
Default

Yeah some people use the 11k carb. The 3.3 carb is the root of the problem when it comes to that engine. The O.S. carb tunes much better, I don't know about performance gains, but it's possible you could see some.

I'm not sure if it's a direct swap, but I believe that there is a little modding you have to do.
boomgagem is offline  
Reply With Quote
Old 03-19-2010, 10:20 PM
  #3  
Tech Adept
iTrader: (1)
 
Join Date: Nov 2008
Location: Australia
Posts: 210
Trader Rating: 1 (100%+)
Default

Hi, I posted this mod way back in the Traxxas forum a few years ago.

It was an OFNA .26 carb that I put onto the Traxxas 3.3

Not sure if you can get these carbs anymore, Basically you need measure the diameter of the Traxxas carb and find a carb that has the same diameter.
You really want to find a carb that belongs to .21 or larger engine.

You will definately notice a huge difference.
The bottom end gain is huge, while the top end is much stronger also.
No other mods needed, You will be amazed how much difference it makes.
bucky1 is offline  
Reply With Quote
Old 03-19-2010, 10:42 PM
  #4  
Tech Initiate
Thread Starter
 
revo_maniack_2's Avatar
 
Join Date: Mar 2010
Posts: 22
Default

alright thanks! mainly i want tunability, and airflow because it seems like the stock traxxas carbs either hold the engine back, or dont tune the greatest.. if i can find a good deal on an o.s. .21 or larger that will work then i might try it out.. sounds like a good idea!
Thanks guys! i appreciate the input,
Later!
revo_maniack_2 is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service