Additional hood heat extractors

[snaproll]

In FL I have seen engine oil temps up to 252 degrees when flogging it. Runs 220's to 230's on a routine basis in the summer. We're talking about air Inlet temperatures of high 90's to 100 degrees generally. I used to freak out about this but I don't anymore.

Do these cars even have sensors for all these temps or are they all just interpolated from other data?

Sponsored

 

[nastang87xx]

Do these cars even have sensors for all these temps or are they all just interpolated from other data?

Actually yes. And then it's fed into the Gauge Mode dash view in the driver's dash.

 

[EF300]

Do these cars even have sensors for all these temps or are they all just interpolated from other data?

Idk but the digital dash and the mechanical gauge read pretty close.

 

[Hack]

I understand it's not the end of the world too and that the engine does like to run a little hotter than maye we're used to with the Coyote. But always thinking, even if I won't end up doing anything (not that I'm freaking out).

I agree with this and I'm glad you started the conversation. I don't feel confident that I could modify my hood and end up with something that made me happy. I like the GT4 hood, but $$$.

 

[nastang87xx]

I agree with this and I'm glad you started the conversation. I don't feel confident that I could modify my hood and end up with something that made me happy. I like the GT4 hood, but $$$.

Exactly. Like Grimace said, I wonder if Tiger Racing will release a hood for us.

Otherwise I might take the plunge. I have a friend who has a lot of schnazzy equipment that can make for good clean cuts if I wanted to do a custom job.

 

[Tomster]

Exactly. Like Grimace said, I wonder if Tiger Racing will release a hood for us.

Otherwise I might take the plunge. I have a friend who has a lot of schnazzy equipment that can make for good clean cuts if I wanted to do a custom job.

On top of that, have you ever seen the hood bounce around at 160-170 mph. Knowing I cut holes in the thing, it would make me very nervous. Just curious, I don't have any temp issues, why the concern?

 

[sublime1996525]

I would also worry about cutting holes in the hood. It could turn it into a sail at higher speeds.

 

[Grimace427]

On top of that, have you ever seen the hood bounce around at 160-170 mph. Knowing I cut holes in the thing, it would make me very nervous. Just curious, I don't have any temp issues, why the concern?

I would also worry about cutting holes in the hood. It could turn it into a sail at higher speeds.

The idea of venting the hood is to reduce the sail effect by allowing high pressure air coming in from the grille to more easily escape.


The most important aspect of this would be determining where the highest pressure acting on the hood actually is. My bet is Ford found this during the original design phase to be in the space behind the radiator and before the engine. If it were me I'd pick a hood design that simply enlarges this vent instead of adding holes anywhere else on the hood.

 

[Grimace427]

Check out the hood on the Shelby Series 1. This is the direction I would go. IIRC Shelby has a 'Deep Draw' hood similar to this for their current Mustang builds.

 

[nastang87xx]

The idea of venting the hood is to reduce the sail effect by allowing high pressure air coming in from the grille to more easily escape.

The most important aspect of this would be determining where the highest pressure acting on the hood actually is. My bet is Ford found this during the original design phase to be in the space behind the radiator and before the engine.

Exactly.

If it were me I'd pick a hood design that simply enlarges this vent instead of adding holes anywhere else on the hood.

Dear Tiger racing...

 

[Epiphany]

More like a tiny, mini-draw, on the GT350 Shelby. I had actually hoped to score the hood louvers from the GT4 hood and fit them to my stock hood. Problem is, the contouring of the GT4 hood is different.
:(

 

[Tomster]

The idea of venting the hood is to reduce the sail effect by allowing high pressure air coming in from the grille to more easily escape.


The most important aspect of this would be determining where the highest pressure acting on the hood actually is. My bet is Ford found this during the original design phase to be in the space behind the radiator and before the engine. If it were me I'd pick a hood design that simply enlarges this vent instead of adding holes anywhere else on the hood.

I get it, but who's willing to start cutting holes in their hood when there really isn't a problem (that really has to be addressed) to begin with?

 

[Grimace427]

Yo Nick, you could get some inspiration from Vorshlag's 2015 auto-x build.


http://www.vorshlag.com/forums/showthread.php?t=7806&page=24

 

[908ssp]

its a nice soft alum hood just cut some holes, BUT what if its not pressure under the hood, but shape of hood causing lift. What will holes do then? You could end up screwing the airflow around the headers and car might run hotter because your letting the limited amount of air the grill allows in out too soon. I'm very leery of messing with airflow on these cars. I don't think you should even change the rear wing like putting on a R wing without lower the car and change the front spoiler to balance things front to rear. Ford spent alot time getting the aero right on these cars. Now if your professional driver and know how to tune an adj wing ok.

The Ford engineers wanted four times as much venting for the hood but the styling guys got their way and screwed the pooch.

 

[cking]

The Ford engineers wanted four times as much venting for the hood but the styling guys got their way and screwed the pooch.

How do you know that?

Sponsored