Drilling Carbon/fiberglass Bonnet

[NickR33]

hello everyone

just a quick one... I have bought myself a carbon/fiberglass bonnet and want to drill some holes in it to fit bonnet pins... now can I just take to it with a normal drill, with some tape on the spot? or do I need to be more careful?

[ali-turko]

they way i did it was i fitted the pins them self to the radiator support, and then i put grease on top of the pins to mark where i got drill out the holes, and yer putting tape of is a good idea

[Craved]

i would be doing a small pilot hole from underneath once you have marked them, then swapping over to the top side with the larger drill since it will splinter a bit where you push through

[rocketboy]

C/F and fibreglass is very brittle, be very careful when drilling as the bits can grab and make a rough edges. I'd recommend using a small rotary tool with a fine grinding bit. Just mark out the size of the hole and grind carefully. Should get a better result than a drill.

[MANWHORE]

I don't like drilling carbon/fibre, because as people have said, it's brittle. But, bonnet pins for those bonnets are pretty much mandatory. I don't know how many times i've seen it where those carbon bonnets have flipped up due to flexing etc.

That's why I still run the stock bonnet.

[STATUS]

never had issues, use decent bits and you will be laughing blunt bits cause headaches...... and damage.

[Beer Baron]

yeah I'm not sure what man whore is reffering to, but I've never had any trouble. you want a good bit, in good condition with fine pitch. and a high drill speed. put masking tape over the area you want to drill. drill a very small pilot hole then away you go. I've uised this technique to drill from about 1mm thick to about 3 or 4mm thick. you can finish the hole a bit with a light, fine, round file.

[NickR33]

got the okay from the manufacturer as well so no worries... cheers for the tips!

put it on last night and not sure I like the look on my car... needs bigger rims now or something... meh maybe it will grow on me!

[Beer Baron]

just remember to put the masking tape on first so you don't scrath up the area around it.