View Single Post
Old Feb 10th, 2006, 11:11 AM   #5 (permalink)
oliverr87
Nissan Fanatic
 
Join Date: Sep 2005
Location: West Covina, CA
Posts: 339
Send a message via AIM to oliverr87 Send a message via MSN to oliverr87 Send a message via Yahoo to oliverr87
Quote:
Originally Posted by RallyBob
While 2.5" might be perfect for a stock engine application with bolt-ons, it does not address the potential that a modified engine has. So saying that 2.5" piping is the biggest you should run is somewhat of a blanket statement that does not hold true in all cases.

For example, IF you are running a ported head, higher compression pistons, a custom header and exhaust, an SR20 TB, and other modifications, then the 3" inlet pipe is the better choice.


Bob

That's true, thank you for the clarification. The article only applies to stock and bolt-on mods. Of course serious modifications such as ported heads, cams, pistons, etc. would require a bigger inlet because simply the 2.5" inlet would be to a point where it would be restricting airflow. Thanks for the heads up!
oliverr87 is offline   Reply With Quote