Yes I have a home brew cold air kit with an eye on adding a snorkel later. It should be noted that I am running a TPI equipped SBC.
The following parts are required:
> 1 - 4"x3" Calder coupling
> 2- 3" calder coupling
> 2 - 3", street, medium sweep (medium radius 90* eldow), ABS
> 1 - 3", medium sweep
> 1 - pc. 18 ga. sheetmetal (finished to your liking) apx. 10.5"x14"
> 7', 3" ABS pipe
> 1 pt. pvc primer
> 1 air filter of your choice that will fir under the dash
Installation:
(note: dry fit all prior to applying the primer; Primer rather than glue to ensure the ability to achieve a seal and retain the ability to dissassemble)
1. stretch the 4" side of the 4"x3" calder coupling over the TPI intake.
2. insert the male side of one street elbow into the 3" side of the 4x3 coupling
3. point the elbow towards the passenger side of the vehicle
4. tighten the band clamps
5. cut a piece of pipe and insert into the intake elbow
6. install the std. elbow pointing towards the fire wall.
7. remove the heater blower motor
8. cut a 5" piece of pipe and insert into the upper hole in the firewall. It will be a little snug.
9. Locate and drill/plaz a hole matching the size and orientation of the pipe detailed in step 8.
10. fit the sheet steel over the hole utilizing gasket maker and the blower housing bolts
11. install the second street elbow under the dash pointing towards the vehicle center
15. clamp the filter of your choice to the male end of the street elbow.
You should experience cooler running temperatures with the added benefit of an extreme gutteral roar in the cab under acceleration!
This mod was done not for the power benefit but to avoid water ingestion via the intake. Even with a fan cut-out, I continually discovered evidence of water in the intake after several trail runs invloving water crossings and or mud.
Best of luck on yours. I do plan on rerouting the assembly through the passenger valence and up the windshield frame.
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