Cold Air Induction Hood Mod for Stock 80' Hood
03-30-2013, 09:30 PM
#63
Drifting
Thread Starter
Video of the Results
Thanks Guys! 
I took the vette out for a cruise and got some video. It's a little long but you can see the air coming into the engine stays very cool! 
The outside air temp was mid to upper 50's during the cruise. The temp display on the left is for the engine bay, and the temp display on the right is for the air going into the air cleaner.
I took the vette out for a cruise and got some video. It's a little long but you can see the air coming into the engine stays very cool! The outside air temp was mid to upper 50's during the cruise. The temp display on the left is for the engine bay, and the temp display on the right is for the air going into the air cleaner.
06-17-2013, 11:04 AM
#65
Racer
06-17-2013, 12:53 PM
#66
Drifting
Thread Starter
07-13-2013, 05:34 PM
#68
Drifting
Im working on my own ram air system and have run into some clearance issues. So I watched your video to see if you really noted any benefits and theses are my observations:
It seems that once you were all warmed up, the engine bay temp was 100, your intake box was 60. Thats a 40 degree difference. Now if I remember correctly, for every 5 degree drop in air temp, you gain 1 hp. (this is an old formula stuck in my head and I may be WAY off) Based on those numbers, you gained 8 HP....
My 454 has a scoop in the hood which fits directly over a 14" aircleaner. There isnt much clearance to add anything. I dummied a square cardboard plate attached to the air cleaner base and its touching the hood in many places. I dont know if ots worth it for me to pursue this project.
Did you notice a significant improvement? Im wondering if my scoop is already letting in enough fresh air. (or maybe its acting as a stove pipe to let it out and getting sucked down the carb...)
My hood scoop is definitely BUBBA, and Im going to have a hard time matching every contour and line, Im wondering if a partially sealed air box is better than none at all? Im thinking of just attaching a plate to the air cleaner base which will block the majority of the hot air.
It seems that once you were all warmed up, the engine bay temp was 100, your intake box was 60. Thats a 40 degree difference. Now if I remember correctly, for every 5 degree drop in air temp, you gain 1 hp. (this is an old formula stuck in my head and I may be WAY off) Based on those numbers, you gained 8 HP....
My 454 has a scoop in the hood which fits directly over a 14" aircleaner. There isnt much clearance to add anything. I dummied a square cardboard plate attached to the air cleaner base and its touching the hood in many places. I dont know if ots worth it for me to pursue this project.
Did you notice a significant improvement? Im wondering if my scoop is already letting in enough fresh air. (or maybe its acting as a stove pipe to let it out and getting sucked down the carb...)
My hood scoop is definitely BUBBA, and Im going to have a hard time matching every contour and line, Im wondering if a partially sealed air box is better than none at all? Im thinking of just attaching a plate to the air cleaner base which will block the majority of the hot air.
Last edited by Scottd; 07-13-2013 at 06:07 PM.
08-12-2013, 07:37 AM
#69
Drifting
Thread Starter
Im working on my own ram air system and have run into some clearance issues. So I watched your video to see if you really noted any benefits and theses are my observations:
It seems that once you were all warmed up, the engine bay temp was 100, your intake box was 60. Thats a 40 degree difference. Now if I remember correctly, for every 5 degree drop in air temp, you gain 1 hp. (this is an old formula stuck in my head and I may be WAY off) Based on those numbers, you gained 8 HP....
My 454 has a scoop in the hood which fits directly over a 14" aircleaner. There isnt much clearance to add anything. I dummied a square cardboard plate attached to the air cleaner base and its touching the hood in many places. I dont know if ots worth it for me to pursue this project.
Did you notice a significant improvement? Im wondering if my scoop is already letting in enough fresh air. (or maybe its acting as a stove pipe to let it out and getting sucked down the carb...)
My hood scoop is definitely BUBBA, and Im going to have a hard time matching every contour and line, Im wondering if a partially sealed air box is better than none at all? Im thinking of just attaching a plate to the air cleaner base which will block the majority of the hot air.
It seems that once you were all warmed up, the engine bay temp was 100, your intake box was 60. Thats a 40 degree difference. Now if I remember correctly, for every 5 degree drop in air temp, you gain 1 hp. (this is an old formula stuck in my head and I may be WAY off) Based on those numbers, you gained 8 HP....
My 454 has a scoop in the hood which fits directly over a 14" aircleaner. There isnt much clearance to add anything. I dummied a square cardboard plate attached to the air cleaner base and its touching the hood in many places. I dont know if ots worth it for me to pursue this project.
Did you notice a significant improvement? Im wondering if my scoop is already letting in enough fresh air. (or maybe its acting as a stove pipe to let it out and getting sucked down the carb...)
My hood scoop is definitely BUBBA, and Im going to have a hard time matching every contour and line, Im wondering if a partially sealed air box is better than none at all? Im thinking of just attaching a plate to the air cleaner base which will block the majority of the hot air.
Yeah, there's definitely an improvement. There is less hesitation, seems a lot smoother, and pulls harder. Seems like more torque to me. I'm sure that whatever power gains I get from the cold air intake is only part of it, because the engine seems to be running better than it was with taking in the engine heat, so I'm sure that's worth some more power. Not sure how much, but it's enough to notice.
I think that your best bet is to seal the air chamber completely from the engine bay. If your hood scoop is that bad, maybe you are better off getting a new one (L-88, etc.) and redoing the scoop. This guys scoop seems to be coming along nicely.
http://forums.corvetteforum.com/c3-t...-88-scoop.html
08-12-2013, 07:52 AM
#70
Drifting
Thread Starter
Update
Okay, the original test that I did in the video was done in 55-60 degree weather. The other night I was out and temps were in the 80's. I was getting on the throttle some opening it up, it was running great! The engine bay temperature was reading 156 degrees and the air intake temperature going into the engine was reading 84 degrees. 
A bit of a difference there, huh?
A bit of a difference there, huh?