Been fitting the Aerocatch lockable bonnet pins.
First decided on a rough position for the brackets a mate made up for me, put some guides in place using masking tape.
The brackets, mounted to the inner guard, would be the securing point for the pins themselves, and all the mounting holes are slotted for adjustment. I've used a Torx headed bolt and nylok nut on each bracket, plus an ordinary nut and bolt, so they can't be removed from outside the Datsun once the bonnet is closed and locked.
Fitted the brackets, aligned the pins, put a dob of grease on top of them and closed the bonnet down on them to leave the dob of grease on the underside of the bonnet. Remeasured everything a couple more times before drilling guide holes where the bonnet pins would poke through.
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File comment: Bracket fitting
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Used the Aerocatch templates to mark out and cut holes in the bonnet, by using two hole saws the correct size and a hack saw blade with a handle on it. Used a grinding stone in the battery drill to smooth off and adjust the new tear-drop shaped holes. This was easier and quicker than I expected. It took longer to measure and mark everything out than it did to actually cut to holes to size.
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Bolted them in place and started that whole adjustment process... This takes a fair bit of time, and I've still got a bit of adjustment to do today before declaring the job finished.
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File comment: Aerocatch fitted
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Discalimer: the instructions do say to mount the Aerocatch units with the skinny end towards the front of the car, but they looked stupid that way. I found many more pics of them on the internet, mounted with the fat end towards the front and they always looked better. Once closed and locked, I can't see an issue.
Just got to put all the Mass Air Flow sensor and air filter back in place today. Might see if I can actually mount the radiator overflow bottle somewhere reasonable too, since it's just been cable-tied to the pipe from the turbo to the intercooler.
In hind-sight, I'd probably recommend using a Dremel to cut out the holes, rather than hole saws. It's probably cheaper and easier, but the hole saws weren't too bad.
We were going to paint the Aerocatch's white too, but decided against it as they'd probably look a bit strange anyway, rather than hidden. So in the spirit of that old engineering saying "if you can't hide it, make a feature of it", we've left them black since the wheels, door handles and bumpers are already black