When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
So does the high pressure it creates effect the power/speed of the car substantially or no?
It adds frontal area, but reduces under car airflow drag, so the effects are a trade off.
A C2/C3 needs high frontal pressure to help feed an air pressure drop across the radiator for cooling, so the air dam enhances cooling at rest (by separation) and at speed (by pressure). The engine area under the hood remains a medium pressure area due to radiator air flow, but still higher pressure compared to to faster airflow areas above and to the sides of the car body, and the engine compartment pressure directs the exhaust air flow down the angled foot well panels to pick up speed and lower the under car pressure from the birdcage to the back of the car. The airflow turbulence under the front suspension & crossmember is broken up front by the air dam to reduce pressure under the forward end of the chassis, and the engine compartment air flow adds speed to the rear low-velocity/high-pressure pocket that normally lifts the rear of the chassis, esssentially reducing the under car lift along the entire chassis. The enhancement is far from perfect, given it's adapted to a 60 year old car with excess power, but the benefits exceed the detriments to fuel mileage.
Below is a link to installation info on using a front air deflector/spoiler from a Saturn...in this case, an Avanti. I had an '80 Avanti (pictured) that had this very unit installed and it was discrete and did its job. Just thought I'd share.
I'm going with the angle that I am dealt with....Using Tom Austin's plan.......I might add two rivets underneath in the middle epoxy area on the bottom flange........
It adds frontal area, but reduces under car airflow drag, so the effects are a trade off.
A C2/C3 needs high frontal pressure to help feed an air pressure drop across the radiator for cooling, so the air dam enhances cooling at rest (by separation) and at speed (by pressure). The engine area under the hood remains a medium pressure area due to radiator air flow, but still higher pressure compared to to faster airflow areas above and to the sides of the car body, and the engine compartment pressure directs the exhaust air flow down the angled foot well panels to pick up speed and lower the under car pressure from the birdcage to the back of the car. The airflow turbulence under the front suspension & crossmember is broken up front by the air dam to reduce pressure under the forward end of the chassis, and the engine compartment air flow adds speed to the rear low-velocity/high-pressure pocket that normally lifts the rear of the chassis, esssentially reducing the under car lift along the entire chassis. The enhancement is far from perfect, given it's adapted to a 60 year old car with excess power, but the benefits exceed the detriments to fuel mileage.
Using the YearOne Spoiler from '69 Camaro, did you use the 3 Rods for Support also....? Where Did they attach to ...?
Thinking of doing this to my GS Roadster....
Sam
Using the YearOne Spoiler from '69 Camaro, did you use the 3 Rods for Support also....? Where Did they attach to ...?
Thinking of doing this to my GS Roadster....
Sam
Sam,
I'm still getting mine fitted with the bumpers. You may not have that issue with your GS. But once the fitment is correct for my liking, I will attempt to utilize (2) of the mounting holes to hide (2) Adjustable Carbon fiber jacketed stainless supports left over from my LG full front splitter on my C6Z. That's the plan, anyway! My support Rods are on Back order from YearOne...
I'm still getting mine fitted with the bumpers. You may not have that issue with your GS. But once the fitment is correct for my liking, I will attempt to utilize (2) of the mounting holes to hide (2) Adjustable Carbon fiber jacketed stainless supports left over from my LG full front splitter on my C6Z. That's the plan, anyway! My support Rods are on Back order from YearOne...
A few other alternatives... Original #002 GS Mr. Wizzard Nathan W.
