Want to add speed holes to my visor. The PO welded the visor on necessitating doing it on the car. Am thinking !.5 "to 2.0" flared holes. Jegs, eastwood and others have the punch and flare tool sets at a $100 bucks. Can this be done on the car? Distortion? Any advice most appreciated ?
LOL I just use a hole saw. Just like we did way back when I was a kid. The flares are pretty cool don't get me wrong, but in my minds eye they are kind of new millennium or newstalgia. No charge for the opinion. LOL
Not being able to keep the sun or rain off the windshield negates the who frigging reason for the visor being there doesn't it?
A punch and die should do the job without moving any metal outside the flare. If you go the hole saw route, I suggest you mask off the windshield and cowl area, literally drape the whole front end with an old bed sheet, to catch all the drill chips. Them little buggers are like sowing rust seeds and they will produce a crop. I don't know what your paint finish is, fresh or patina, but you will have to file/sand any burrs, primer and blend the color coat. It's not going to be a single afternoon project. Lastly, don't slip and step or elbow your hood/cowl/fender/etc. But like has already been mentioned, sometimes the best option is to do nothing at all. .
The PO made a permanent modification by welding it on......putting holes in the visor will also be hard to reverse. I'll agree with Mr48chevy on his take on visors with holes.
knock out punches are the way to go. they leave a perfectly cut circle. I don't see why it couldn't be done on the car. hole saws are for amateurs.
I did it in 10th grade with tin snips, teacher didn't understand, it was 1960. able to see stoplites , plus looks kool !!
My only advice is don't do it unless you like noise,when I drilled the holes 3" on a model A the whistling noise was much louder.HRP
I think its funny to call them speed holes I always thought that it was so you could see the traffic light.
Look at the dive brakes on old dive bombers, full of holes to increase drag. Don't think the holes really help speed much as increase turbulence in the air flow.
That's what I use mine for, seriously. I used a hole saw but on a drill press. Would be a bear on the car since it's not flat, lotsa snags for hand drilling.
Interesting info from HRP that the noise pitch changes to louder with the holes. With out having first hand experience the normal thought train would be it reduces drag hence noise. I remember in our 34 pickup at 60mph it sounded like you were doing 85mph. Might have to rethink the hole scenario in our current project. (Sorry couldn't resist)
Yea those have been around for a long time, I think I have one someplace. Just that I could never see any other use for "speed" holes other than to see out better.
Punch and flare on the car isn't hard. Drill a pilot hole and then just screw the die till it pops the (flared) hole.
With a 4" chop and seating position atop a stepped frame has one looking at the B pillar the visor is not seen.
Got a Guide unit just like that. Any less than 3 cars back at the light its necessary. I sometimes rely on the opposite traffic tho.
Just the look I'm after. What did you power the punch and flare with? Is an impact wrench recommended ?
They always look good on other folks cars but I don't think they are all that practical. I had a stock visor on my 29 tudor and it flapped around at high speed. I considered holes and then decided louvers might be a good compromise. There was no improvement or reduction to the noise and flapping and I am glad I did not do holes as I figured later it would probably have been worse and like somebody said more crap and rain on your wind shield to boot... I thought louvers might have helped reduce some air pressure build up and reduce the flapping, but no such luck.
Or, you can use a prism, as mentioned. Mine mounts from the roof and hangs down. I always liked the look of the stock visor. I think somehow the holes look "affected". But, it's your car. There will be a lot more drag, a lot more noise, a lot more rain and it won't work as a visor anymore. That's a hefty :fee". Oh, and don't forget to mask off the holes and then paint them clear.
Going 60+ down the road, stick your hand, fingers together, out the side window into the airflow. Now spread your fingers a little. Feel the difference? Me neither. You have a good look, though. You don't see it everyday and louvers are "traditional". So why not?
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