grills vs heat / IAT

mustang1 · Sep 21, 2017

I only recently noticed that my mustang grill is nearly 50% blocked. And it gets hot here in texas. It's not uncommon for me to see IAT at 125+, when leaving a parking lot, or stuck in traffic. And my suspicions were confirmed with this article:

https://jalopnik.com/cars-without-fake-grilles-1818518076
Cars Without Fake Grilles

I assume the partially blocked grill would be an advantage on a cold day. But for those in warmer climates, is there any advantage to the stock grill ?

texasboy21 · Sep 21, 2017

mustang1 said:
I only recently noticed that my mustang grill is nearly 50% blocked. And it gets hot here in texas. It's not uncommon for me to see IAT at 125+, when leaving a parking lot, or stuck in traffic. And my suspicions were confirmed with this article:

https://jalopnik.com/cars-without-fake-grilles-1818518076
Cars Without Fake Grilles

I assume the partially blocked grill would be an advantage on a cold day. But for those in warmer climates, is there any advantage to the stock grill ?

Opening up the stock grille, doing a grille swap, or simply 'deleting' it are all common mods.

I cant say for certain how much heat it will drop, but it certainly cannot hurt.

Kinjirra · Sep 21, 2017

The partial blockage of the stock grill is for aero reasons. Better air flow as it forces air upwards at speed. More technical then I know how to explain though at this point but it does have a reason and it does do whats its supposed to do...increase MPG.

That being said I am doing a custom grill... who buys a GT for MPG?

ahl395 · Sep 22, 2017

Some people have said doing so causes more air to enter the engine bay and can cause more hood flutter. A set of hood struts will (mostly) fix that though.

Chris@Lethal · Sep 22, 2017

Grille delete is the way to go. Looks really good and helps with airflow. We have always done these grille deletes to all of our shop cars and we're located in South Florida, so it is almost just as hot and humid as where you're located.

https://www.lethalperformance.com/lethal-performance-2015-2016-mustang-grille-delete-combo.html

Genxer · Sep 22, 2017

I do like having a grille to block at least some of the debris. A well-placed rock can take out a condenser. I hit a small bird a few months ago at 55 mph and very little made it through. Did have to clean my grille a bit.

I DID open up holes in front of the air intake, to get approx. twice the sq. inches open from stock.

Taneras · Sep 22, 2017

Genxer said:
I do like having a grille to block at least some of the debris. A well-placed rock can take out a condenser. I hit a small bird a few months ago at 55 mph and very little made it through. Did have to clean my grille a bit.

I DID open up holes in front of the air intake, to get approx. twice the sq. inches open from stock.

This is what I'm considering doing. Did you dremel some of the blocked honeycombs out or did you actually remove a section completely?

ryant601 · Sep 22, 2017

also thinking about removing some blockage in that area. IAT hit 160 today, it's only 80* out.

texasboy21 · Sep 22, 2017

ryant601 said:
also thinking about removing some blockage in that area. IAT hit 160 today, it's only 80* out.

"PMAS cold air intake..."

Open element intakes will ALWAYS suffer from heat soak issues and higher IATs compared to a sealed box.

ryant601 · Sep 22, 2017

texasboy21 said:
"PMAS cold air intake..."

Open element intakes will ALWAYS suffer from heat soak issues and higher IATs compared to a sealed box.

No I know that, and it goes down fairly quickly but it NEVER gets within 20* of ambient, even at higher speeds. Either my MAF position is wrong, or I need to cut out the honeycomb.

LETHAL · Sep 22, 2017

Steeda box here. I am going to open up the grill and get the big mouth and see how that works.

My IAT's are retarded hot.

Kinjirra · Sep 22, 2017

LETHAL said:
Steeda box here. I am going to open up the grill and get the big mouth and see how that works.

My IAT's are retarded hot.

I have a modified Steeda box(modified from the former owner of the CAI) and it drops to ambient super fast and my grill is 100% stock.

I'll pm you the link of what he did if I can find it..seems to work well.

ChitownStang · Sep 22, 2017

I have a Steeda CAI too, what did you do Kinjirra?

Kinjirra said:
I have a modified Steeda box(modified from the former owner of the CAI) and it drops to ambient super fast and my grill is 100% stock.

I'll pm you the link of what he did if I can find it..seems to work well.

stevnoof · Sep 23, 2017

I don't think it looks good with deletes but it might help.

sublimaze · Sep 23, 2017

Kinjirra said:
I have a modified Steeda box(modified from the former owner of the CAI) and it drops to ambient super fast and my grill is 100% stock.

I'll pm you the link of what he did if I can find it..seems to work well.

Can you post the link here? I am sure others would like to see it too. Thanks!

grills vs heat / IAT

mustang1

Well-Known Member

texasboy21

Well-Known Member

Kinjirra

I R Slow

ahl395

Well-Known Member

Chris@Lethal

Well-Known Member

Genxer

Well-Known Member

Taneras

Well-Known Member

ryant601

Well-Known Member

texasboy21

Well-Known Member

ryant601

Well-Known Member

LETHAL

From the D but in the NC

Kinjirra

I R Slow

ChitownStang

Well-Known Member

stevnoof

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sublimaze

Well-Known Member