Rear Spoiler Pitch/angle
#1
Is there a correct way to set the pitch of the rear spoiler? I have mine sat at the same rake as the rear window. I've seen them set at other angles and I was wondering what if any is the correct way to set it.
Reply
#2
It depends what you want from the device.

In a race situation it provides down force to hold down the rear of the car. At normal road speeds the effect is minimal on either down force or drag.

The least drag and down-force will be provided by offering the narrowest profile to the air flow. Best LOOK will be a LITTLE nose down from horizontal IMO.
Reply
#3
If I am not mistaken, the back edge of spoiler runs flush the top edge of the deck lid. This should set the angle. Not sure if this helps without a visual.
Reply
#4
I am about to remove my rear spoiler which was installed by the previous owner. The top edge front to top rear is not parallel with the rear fast back slope. It is a bit higher so it catches air if not real tight and once flipped up all the way at 85 mph when it was not tight enough. No damage as it has internal limitations to prevent contacting the red painted areas. If it was being driven down as I believe it should be it should have turned down not up and back. he point of this is to press down some to add traction and stability but the opposite happens if it lifts upward.

When I remove it I will lengthen the slot ends on both sides to allow a bit more travel to lower the leading forward edge. Then grind down the internal stops some to allow the movement in the now lengthened slots. The top side finish had some minor issues like scratches which when an attempt to polish them out the sheen of the surface became more shiny. I plan to strip the surface and test exterior clear matte as a top coat to try to even out all the sheen to one appearance. I would not like to have to paint it but if required I would go with satin or semi gloss black the clear matte. If I do it it will be in my shop if I send it out I can buy a new one for less. It would be better to just get rid of the increased sheen but that one I have not figured out yet.

Anyone here ever deal with modifying the rear wing to tip down past the factory stops and have you ever painted one of these?

Thanks
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  I got a question about the rear seats, rookie restorer 3 4,450 10-30-2014, 06:19 AM
Last Post: rookie restorer

Forum Jump:


Users browsing this thread: 1 Guest(s)
[-]
Latest Threads
72 351C starts to overheat at idle
Last Post: SteveO_71
Yesterday 12:18 AM
» Replies: 16
» Views: 2532
new autolite volt reg keeps alt light on
Last Post: 1969_Mach1
07-20-2019 01:41 PM
» Replies: 10
» Views: 450
Manual Trans Gear Oil
Last Post: martinbrown1276
07-19-2019 10:04 PM
» Replies: 13
» Views: 3412
New Member and 69 Mach 1 owner
Last Post: bob.harlan
07-19-2019 02:42 AM
» Replies: 2
» Views: 209
Stock Cam Specs - 69 351w 4v ?
Last Post: yashasvi07
07-18-2019 06:51 PM
» Replies: 71
» Views: 50206
Happy Birthday America!!!
Last Post: Mustangmike
07-05-2019 09:45 AM
» Replies: 2
» Views: 918
69 Mach 1 rear seat install
Last Post: rindel
06-29-2019 02:44 AM
» Replies: 8
» Views: 1896
1973 Mach 1 parts
Last Post: locknload
06-28-2019 12:14 PM
» Replies: 8
» Views: 3334
headers for 1969 mach 1
Last Post: rango-jr
06-23-2019 11:37 AM
» Replies: 11
» Views: 2670
Been Awhile... '71 Rustang
Last Post: Steven Harris
06-21-2019 01:52 PM
» Replies: 148
» Views: 129436
Bezel for power seat switch
Last Post: 1969_Mach1
06-21-2019 02:28 AM
» Replies: 2
» Views: 569
Happy Dad's Day!!!
Last Post: BLACK JADE 69
06-18-2019 12:31 AM
» Replies: 1
» Views: 536
No power brakes
Last Post: 1969_Mach1
06-14-2019 03:12 AM
» Replies: 5
» Views: 1065
69 Mach 1 Headlight switch reinstall iss...
Last Post: combat32
06-03-2019 11:58 PM
» Replies: 16
» Views: 3350
66 Fairlane Project
Last Post: Mustangmike
06-02-2019 11:20 AM
» Replies: 587
» Views: 233054
Is this noise normal?
Last Post: 1969_Mach1
05-31-2019 08:36 AM
» Replies: 15
» Views: 4909
What is this?
Last Post: Oztrailer
05-25-2019 07:23 PM
» Replies: 6
» Views: 1324
hdshadpar
Last Post: hdshadpar
05-24-2019 12:52 AM
» Replies: 5
» Views: 3054
Shaker Rebuild
Last Post: Bambus
05-17-2019 02:18 AM
» Replies: 12
» Views: 4360
Mustang GT Transmission Issue Overrated?
Last Post: Mustangmike
04-26-2019 07:40 PM
» Replies: 1
» Views: 2157

>