DIY heat shield - for under £20
So this all came about after I fitted my a Badger5 3" TIP and JR filter. Having pulled out the old airbox I could see that the MAF and filter were going to be bouncing about all over the place, so figured I needed something to secure it, stopping the vibrations destroying the MAF. That and obviously something to stop the heat soak.
I looked at a few on the web but decided I wanted something a little more substantial yet still pretty simple as I'm a bit of a spanner with a spanner. Don't get me wrong, this is officially amateur hour.
Anyway, I popped down to Homebase and picked up the following...
- Steel sheet - 100cm x 50cm x 0.0055cm - £16
- 2 x nuts & bolts - 4mm - £0.85
The design is all one piece of steel to keep it fairly fool proof, cut to the template below and riveted together. It's a fairly tight fit which is what I was going for so that it doesn't rattle around. It also gives as much room around the filter as possible, so shouldn't be too restrictive.
- Tin snips - £17
- Rivet gun - £16
- Drill - 4mm & 6mm drill bits
Before first fitting... needed to be trimmed down a couple of inches in length as it just wouldn't fit. Not as easy as it sounds.
I used one of the airbox fitting screws to secure it against the wheel arch, as well as the rubber ring from the lid of the airbox to space the filter from the heat shield. Having just thought about it, it would probably be better used to space the MAF from the heat shield. Must remember that.
What would I do differently?
The adjustments above have been made to the template. Mine looks a little rough as I had to make adjustments as I went, which was a pain once everything had been bent into shape. Might also find some PVC edge trim to finish up the sharp (now slightly scrappy) edges.
- Potentially use aluminium instead of steel as it would be lighter and easier to cut/bend. Unfortunately that's all Homebase had on the day.
- Reduce the height by about 10mm as mine makes an indentation on the bonnet lining. It's a tight fit at least!
- Make the tabs larger which would make them easier to bend. These were a real ball ache with the thickness of the steel and fairly little leverage.
- Find a better tool to cut the MAF hole out - that took bloody ages to get a decent circle with those tin snips.
All in all I'm pretty happy with it, certainly does the job. If you have the tools already, it's a steal at £17.
Next up is a cold air feed. Any suggestions?
Any thoughts, comments, amendments on the design? What has everyone else done? Answers on a postcard.