How to build a better air dam for 3 dollars
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Joined: Jul 1999
Posts: 139
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From: Ponchatoula La 70454
Car: 1989 Firebird Formula
Engine: 305TBI
Transmission: 700R4
How to build a better air dam for 3 dollars
After I had re installed my ground effects on my car I noticed it was having trouble cooling at interstate speeds due to the gfx blocking the air dam
I had to make a new piece to extend off the lower one so that it could grab air from underneath the gfx. My buddy Paul suggested an old rubermaid garbage can I had in the back yard!
That seemed like a good idea because it's flexible against curbs and speed bumps so I cut a strip out and two more strips to go behind it for reinforcement
When to lowes and bought some screws for about $3 dollars and attached it
You can see in the pic above it drops down about two inches further then the stock piece. I then painted it black
And then installed it back on the car
It drops down just enough to catch the air the other was missing. I then tested it out and was able to clear the speed bumps in my neighborhood and then ran it on the interstate.
My temp stayed consistent. Not over heating anymore and it was a cheap easy fix that looks really decent on the car!
I had to make a new piece to extend off the lower one so that it could grab air from underneath the gfx. My buddy Paul suggested an old rubermaid garbage can I had in the back yard!
That seemed like a good idea because it's flexible against curbs and speed bumps so I cut a strip out and two more strips to go behind it for reinforcement
When to lowes and bought some screws for about $3 dollars and attached it
You can see in the pic above it drops down about two inches further then the stock piece. I then painted it black
And then installed it back on the car
It drops down just enough to catch the air the other was missing. I then tested it out and was able to clear the speed bumps in my neighborhood and then ran it on the interstate.
My temp stayed consistent. Not over heating anymore and it was a cheap easy fix that looks really decent on the car!
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Joined: Nov 2010
Posts: 1,062
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From: Arizona
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: How to build a better air dam for 3 dollars
Great job!I need a airdam also. I think I might give this a try.
Thanks for the great info. I wish I had the exact measurement for my 89 camaro.
If there is anyone out there with a airdam on there 89 RS maybe you could measure and give me the #s.
Thanks for the great info. I wish I had the exact measurement for my 89 camaro.
If there is anyone out there with a airdam on there 89 RS maybe you could measure and give me the #s.
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Joined: Sep 2007
Posts: 616
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From: Sacramento
Car: 1992 Z28 L98 G92
Engine: 5.7 350 B2L
Transmission: 700 R4
Axle/Gears: 3.23
Re: How to build a better air dam for 3 dollars
...good job. You found an easy solution to your problem without the hi-tech cost. Blends in well with the black paint. Thanks for posting the pics with your thread. Nice looking car btw! 
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iTrader: (25)
Joined: Feb 2006
Posts: 7,260
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From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: How to build a better air dam for 3 dollars
that's a good fix. really lowered your cruising temps it looks like. nice.
Member
Joined: May 2004
Posts: 161
Likes: 0
From: texas
Car: 85 camaro
Engine: 605in bbc
Transmission: powerglide
Axle/Gears: 12bolt with 4.10's
Re: How to build a better air dam for 3 dollars
i will measure my damm today..mine is a sport coupe but has a z28 damm on it..looks like it hangs low but should catch alot of air..i will snap a pic as well..
my har has a bbc ..i hope it keeps it cool.
my har has a bbc ..i hope it keeps it cool.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: How to build a better air dam for 3 dollars
I may try something like this in attempt to improve stock cooling at speed. Good job
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Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: How to build a better air dam for 3 dollars
I just did this install today as well it's a very smart idea my stock air damn measured 34x5 so what I did was got a trash barrel an cut it 34x6,1/2 the air damn sits alot lower to the ground now an keepsthe car cool right around 180 in the city an around 175 on the highway I'm very impressed with this idea an thanks alot for sharing it with us all
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