rd400guy
Materials
- Jan 30, 2003
- 101
Since this is an engineering forum, I'll pose the question this way: Is there more benefit to having a colder charge air source, with a smaller inlet area, or engine compartment temperature air (with some outside air) and a larger inlet area?
Here's the scenario, two modifications to a stock airbox (K&N type filter already in place):
1. Install ducting (~3"Ø) from front lower grille up to a hole cut into stock airbox.
- block off existing inlet to restrict intake path to nose inlet only? or
- keep existing inlet open?
2. Cut away "dirty side" of existing airbox to expose entire surface of air filter as the "inlet".
- use lower grille opening & minimal ducting to aim cooler air toward "inlet"?
- add heat shield by exhaust manifold?
Either situation will flow through unmodified throttle body and intake manifold.
Here's the scenario, two modifications to a stock airbox (K&N type filter already in place):
1. Install ducting (~3"Ø) from front lower grille up to a hole cut into stock airbox.
- block off existing inlet to restrict intake path to nose inlet only? or
- keep existing inlet open?
2. Cut away "dirty side" of existing airbox to expose entire surface of air filter as the "inlet".
- use lower grille opening & minimal ducting to aim cooler air toward "inlet"?
- add heat shield by exhaust manifold?
Either situation will flow through unmodified throttle body and intake manifold.