How to make a custom cold air intake
From The 3geez Wiki
When I installed my short ram I noticed a big loss of low end torque and my gas mileage was also affected significantly. It was suggested I try an intake with a smaller diameter, and/or going with true cold air intake instead. I decided to do both. Here's how to do it:
- Buy a standard mandrel bent U bend tube available from JCWhitney (part # ZX813035N)
- Cut the tube according the picture. The way I figured this out was to take some rough measurements of the engine bay and mocked it up on the computer. After mocking it up, I visually estimated where the first cut (between the green and yellow bits below) by holding the tube up to the engine bay and then started cutting away.
- Wash all the saw dust and other crap off of the metal and paint them. I used high heat black paint.
- Assemble the pieces with some 2" couplers from the hardwares store and use any generic short ram/cai filter. You'll need an extra coupler to use as a shim if you have a 3" filter.
- I had to switch the location of the top two pieces cause the intake needed to extend out from the throttle body a little before turning.
Links
- How to install a cold air intake
- Tutorial on making an intake for a Del sol - The basis for this how to
