Drilling F1 Backplates

Today I made a very simple jig for drilling the cir***ference of my F1 backplates.

Once I'd set it up so it was concentric I just stepped off the distance between the holes with a pair of dividers and drilled pilots using a 3mm bit. I then went up to 8mm. The great thing was that I didn't have to measure anything.

That old Ford metal is tough stuff and I had one hole where the drill just skidded off and dug itself in off-centre - so I used my hot metal pump to fill that hole and then filed it smooth and hit it with the centre punch and drilled it again.

I'll do the right hand one tomorrow.

 

that's nice man!!

 

BTW - is it OK to drill the "eyebrow" shaped raised area??

 

Nice cooling scoop. Looks great and functional.

 

I drilled mine using a divider and a measuring tape:

 

They look very nice - I'll add some more holes to mine.

 

Those look good

These are 40 backing plates but I had fun drilling the holes

 

Can you post more pictures of your steering set up?

And also I ***ume you drill the backplates both for looks and to help with cooling?

 

Great timing! I was looking at drilling my backing plates for my T project. I like the scoops also. All examples here look great.