Functional Hood Scoop?

The purpose of the skewp is not to suck in air but $1500 out of your wallet.

 

That was a pic of the mod, not the problem.

Prior to the mod after an automatic car wash, I would get a trail of soap on the hood driving down the road. This doesn't happen after the mod.

The same problem was happening with wet snow before the mod. Big splashes right in my line of sight. This is also gone after the mod.


I would have guessed, given the grille design, that the air would be pretty dirty by the time it got to the skewp. I was surprised to see it doing otherwise. That said, water droplets directly behind the skewp and hood dome never move.

 

In theory, it should make the car faster. More airflow right? More air + more fuel = more boom, therefore faster car. But granted, a hood scoop wont transfer cold air unless u rework it with the radiator, but that would be complicated. I would imagine at least...

 

How much do his scoop light kits run? I couldn't find cost information on his instagram.

 

Except when you drive a Tacoma, which draws its combustion air from the passenger wheel well.

 

Go take a look at some WRX/STI under hood hood pics. It would take A LOT to make it truly functional and you would probably want access to a 3D printing machine. There are actually small fins inside the scoop to minimalist turbulence. Someone mentioned it above, but you would want it feeding something so it doesn’t create turbulence under the hood. The way the front of a car is designed is to create a low spot of pressure behind the radiator to “suck” air through it.

End of the day, even if you sent up something like an intercooler system under the scoop or a ram air system like on the early 2000’s Mach 1 mustang, you would be spending a ton of money to get it to function correctly. If you look at some high horsepower WRX/STI’s they move the inter cooler to the front bumper and the scoop becomes useless.

 

Doesn't seem to be working for me. Is this covered under warranty?

 

What if you have two airways

 

It gets even more expensive when you hit a deep puddle on the road and a slug of water comes up over your hood and into your scoop, hydrolocking your engine.

 

I do not. I was sort of quoting your earlier post, why I used quotation marks around the "Toyota findings" and you were clear then that there wasn't (or at least you didn't have it) a reference to provide. Your sentence was my source: "It was noted in the other thread, with no reference, that Toyota studied a functional skewp and it degraded engine cooling. Up here in the PNW, we don't have to worry about that."
It would be nice to see that study, because I'm interested in it.

 

Good stuff.

 

Speaking of YOLO, I would like to see a carbon fiber I think they was called GTR hoods. Like Vorstiener made for e46 BMWs.

 

There's only one air filter. The factory intake isn't restrictive and it pulls intake air from the fender. The radiator is exposed to plenty of fresh air.

How would an open scoop help either of those things?

 

Personally, I believe the stock intake is pretty restrictive compared to other cars. But I do see your point and I appreciate you taking the time to tell me why. I was just curious

 

Toyota did not engineer a restrictive intake. That’s wouldn’t gain them anything.

 

Fair enough. Owners have tried to get more power by installing cold air intakes and Aftermarket filters but with no forced induction option available, it seems you get a couple HP and a nice improvement in sound, that's about it.

 

They could make a restrictive intake, then try to sell the “TRD” intake to make a couple of hundred dollars more.

 

No, they wouldn’t trash the trucks fuel economy numbers to sell intakes.

The TRD intake just changes the intake sound, and gives you a reusable filter and nice red piping.

 

No argument, just want to add more.
This suction mentioned above plays into the addition of the electric fans on radiators. So many problems with belt driven fans (maybe another post) that it pushed them down the elec-fan road trying to correct some of them. First was trying Flexible fan blades. It was determined that when the vehicle was moving faster than 30 mph, the radiator fan was useless, at best. Being belt driven, they could either clutch it ($$$) or make the blades flex back so as to not cause even more resistance to flow and to allow for high-speed air movement. Wasn't good enough and the simple solution was to install thermostatically controlled electric fans. Water too hot = turn on the fan. If air movement was adequate to cool, then leave the fan switch off and let it free wheel (which still makes drag, but I guess folding it away involved too much).

I remember the days of trying different thicknesses of fan belts to get better cooling. The thicker the belt, the higher up the pulley groove the belt would ride and thus, by being at the outer rim it would turn the pulley faster (fan & said pulley were directly attached). Fun experimenting on mechanical things back then. This electronic ECU stuff is cool, but not always fun.

 

Even with an open, non-functional hood I don’t imagine that happening. It does make your engine bay nasty, though. I ran a scoop that fed the carburetor on my 84 mustang and never had an issue.

I also included some pics of my WRX for a pic of a functional modern car. If you zoom in, you can see how the hood is mated to the intercooler