Aaam hmm pipe that have grooves, so in that way it can be easily bent..(I’m still learning English, and sometimes take risk-trying to use words in Latvian-maybe they will work )gofred?
It looks like a fancy version of what I built in the 70s by putting a 4" (ovalized) fitting on the stock air cleaner where the snorkel used to be and putting a round 4" fitting on the driver's side intake vent. I used dryer vent hose to connect them so I guess that I am guilty of using "gofred" pipe as well. I'm not sure how much difference the outside air hose made but removing the snorkel and adding a 4" opening did improve performance. The air opening on the stock air cleaner is barely the size of a quarter.This isn't done yet, but I think it will work. The engine cover closes over it.View attachment 11988
wondered how effective they really were so I sat up straight and reached back and put my hand on the scoop to see if I could get any sense of the air rushing into it
I figure they barely flow anything because the pressure in the engine compartment is high and that is where the scoop goes. If you made the scoop go somewhere else, like say ducted it to the carburetor or some other area, it might flow like gang-busters.Interesting! - so recently I mounted an anemometer on the LH scoop with a modified grille (I had a spare scoop and opened up all of the grille slats).
I drove at 100km/h and stuck the sensor far out of the window. It was not a windy day. I read around 100km/h.
I then put the sensor in the duct as shown below, and taped it off. Most of the air was flowing through the sensor.
I installed my modified grille with a new foam gasket, and aligned everything as best as possible.
I drove at 40km/h, 60km/h, 80km/h, 100km/h and another reference speed.
I don't have the figures in front of me, but I can tell you, that at 100km/h, the measurement was barely 20km/h. I have the pressure figures at home, I'll post later.
So, I measured the fresh air vents on my non AC '82. Well, THEY FLOW MORE AIR THAN THE SCOOPS! Doh.. which is barely anything to be honest. My goal was to use those side vents for an intercooler. There is not enough air flow there for an intercooler, it's pointless to be honest.
Mind you, I don't have the plastic "belly pan" undertrays installed.
So Paul, you're right. They barely flow anything.
View attachment 12001
View attachment 12002
View attachment 12003
If you made the scoop go somewhere else, like say ducted it to the carburetor or some other area, it might flow like gang-busters.
Interesting! - so recently I mounted an anemometer on the LH scoop with a modified grille (I had a spare scoop and opened up all of the grille slats).
I drove at 100km/h and stuck the sensor far out of the window. It was not a windy day. I read around 100km/h.
I then put the sensor in the duct as shown below, and taped it off. Most of the air was flowing through the sensor.
I installed my modified grille with a new foam gasket, and aligned everything as best as possible.
I drove at 40km/h, 60km/h, 80km/h, 100km/h and another reference speed.
I don't have the figures in front of me, but I can tell you, that at 100km/h, the measurement was barely 20km/h. I have the pressure figures at home, I'll post later.
So, I measured the fresh air vents on my non AC '82. Well, THEY FLOW MORE AIR THAN THE SCOOPS! Doh.. which is barely anything to be honest. My goal was to use those side vents for an intercooler. There is not enough air flow there for an intercooler, it's pointless to be honest.
Mind you, I don't have the plastic "belly pan" undertrays installed.
So Paul, you're right. They barely flow anything.