Lifetime Premium Member
Join Date: Dec 2006
Location: Nova Scotia Canada
Re: Vintage Air vs Old Air Products
I know this for sure about Vintage Air, and it's probably the same for other brands, but an after market system won't have a provision to introduce outside air -- it just recirculates inside air. That creates a potential for severe fogging of the windshield. Whatever you do, do not turn on the defrost while driving. Under the right conditions, it will completely fog over the windshield and blind you. I found that out while driving on a winding mountain road. It can be very dangerous.
As for the lack of outside air and fogging windows, I called Vintage Air and asked what the fix was. They said, "Roll down the window". At first I was furious as I just spent a lot of time on money on their system, but it does work. If I'm driving and the windows start to fog over, I just crack the driver's window. It only takes a small amount of air to balance it out.
I installed a heat/defrost Vintage Air unit in my '86 Monte SS and discovered the same issue.
Imagine my surprise after thinking how well this works then after 5 or 10 minutes the inside of the windshield fogged up.
I also contacted Vintage Air and they told me much the same as they told you,roll the window down.
Now that I know what to do I don't mind,and it's way better than the factory setup was.
'86 Monte SS,
AFR CNC'd 315 heads,
Custom Bullet solid roller,.706, 285/293-255/263 @ .050,110 LSA,UDHarold's lobes.
Isky .904 EZX Roll lifters,
Thanks to Mike "Wolfplace" Lewis,
Weiand Stealth intake,ported & gasket matched,
825 Mighty Demon,tuned by jmarkaudio,
2 inch Hooker Headers,(Coated),
Doug Nash 4+1 5 speed,w/a couple of cryo treated gears,
9 inch rearend,
Hurst Vertical Gate II In Line Shifter,
TC Member # 4921