Center hood vent mounting location

[Nihilation]

We're about to install a Trackspec, and while browsing photos, we're noticing a variance in the forward/rearward position where it's being installed. Some closer to the power bulge, others closer to the roundel.

I'm looking for suggestions as to how far forward/rearward is optimal. For those who have installed theirs, could you measure how far from the roundel it is, and if you would mount it the same spot if you were to do it again?

Huge thanks!

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[eacmen]

This is one way. Previous owner installed it but i like it.


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[Nihilation]

This is one way. Previous owner installed it but i like it.


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Thanks. Can you measure from roundel to the vent? Far enough back to clear the intake duct?

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[sc_tr0jan_m3]

A different company but look up the instructions for Race Louvers and they have a whole suggested protocol for installation.

It might work well with the generic trackspec vents if they didn’t provide any guidance


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[eacmen]

Thanks. Can you measure from roundel to the vent? Far enough back to clear the intake duct?

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I will measure it tomorrow for you. Sorry just saw this.

Not sure why you're worried about it clearing the intake duct. This bolts to the top of the hood.


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[erickhoyos]

I will measure it tomorrow for you. Sorry just saw this.

Not sure why you're worried about it clearing the intake duct. This bolts to the top of the hood.


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The vents go slightly further into the hood, that’s why he’s asking. Saw a video where this guy installed Trackspec vents and tried to close his hood but the passenger vent was hitting the coolant cap.

[liam821]

I've been meaning to get something like this for my track car. The hood vents are a massive help at removing underhood hot air.

[eacmen]

forgot about those support fins on the bottom.


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[eacmen]

Thanks. Can you measure from roundel to the vent? Far enough back to clear the intake duct?

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See pic above op. Looks like 3.5inches between the top of the roundel to the bottom on the center vent.


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[mrgizmo04]

I run without the cabin air filter. I have not done scientific tests with/without in similar conditions. I don't remember what the models said on the old forum about airflow, but seems like all the air getting pushed against the firewall and right above the headers has to escape somehow and with the undertray and front subframe plate underneath, there is not much space there.

Also, I think this was discussed on the old forum, the driver side hood vent is most likely for symmetry, as i can't see much heat generated or even getting to that area to escape, with the airboxes/shrouds in the way.

The front vent... Has there been any "scientific" testing on that one on our cars (I didn't seem to find anything on buildjournal website or trackspec)? Normally I know they work, big however here - alongside the fact that radiators are tilted at an angle (top of radiator closer to front of the car vs the bottom) creating a path for the air to escape through the front vent especially with fans doing the work (pusher from the front of the radiator/puller from the back). Also, this is sometimes paired with some sort of channel/air diverter "forcing" and directing the airflow to go through that vent rather than "somewhere" into the engine compartment, with some of it making it out of the vent.

In our car the air has to make 90degree bend from entering the radiator to escape though that front vent. With the placement of the front of the vent about 3.5" from the roundel, that is right above the radiator. I can see that helping route the hot air out when the car is stationary, but moving, I am not so sure. Is that such a high pressure area that it aids in evacuation even if air has to route 90degrees, or is that another marketing gimmick for our cars?

I'm legit trying to understand, not trying to dissuade op or anyone considering this for their cars.

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[eacmen]

I run without the cabin air filter. I have not done scientific tests with/without in similar conditions. I don't remember what the models said on the old forum about airflow, but seems like all the air getting pushed against the firewall and right above the headers has to escape somehow and with the undertray and front subframe plate underneath, there is not much space there.

Also, I think this was discussed on the old forum, the driver side hood vent is most likely for symmetry, as i can't see much heat generated or even getting to that area to escape, with the airboxes/shrouds in the way.

The front vent... Has there been any "scientific" testing on that one on our cars (I didn't seem to find anything on buildjournal website or trackspec)? Normally I know they work, big however here - alongside the fact that radiators are tilted at an angle (top of radiator closer to front of the car vs the bottom) creating a path for the air to escape through the front vent especially with fans doing the work (pusher from the front of the radiator/puller from the back). Also, this is sometimes paired with some sort of channel/air diverter "forcing" and directing the airflow to go through that vent rather than "somewhere" into the engine compartment, with some of it making it out of the vent.

In our car the air has to make 90degree bend from entering the radiator to escape though that front vent. With the placement of the front of the vent about 3.5" from the roundel, that is right above the radiator. I can see that helping route the hot air out when the car is stationary, but moving, I am not so sure. Is that such a high pressure area that it aids in evacuation even if air has to route 90degrees, or is that another marketing gimmick for our cars?

I'm legit trying to understand, not trying to dissuade op or anyone considering this for their cars.

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All good points. I bought the car with the vents so I can't give any before/after. But I can say that this car behaves better cooling wise than our last track car.

There is no ducting to the the vents. But that concept makes sense in principal.

Previous owner may have just done it for the looks.

Anyone contemplating this better have covered parking. The drivers side vent is right over the airbox. Don't want the air filter getting water logged.


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[mrgizmo04]

Yeah definitely need to be mindful of car washing and getting caught in rain since those vents are rather open. I'd also be more concerned about passenger side with all the wiring/coils/sensors around there.

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[eacmen]

Yeah definitely need to be mindful of car washing and getting caught in rain since those vents are rather open. I'd also be more concerned about passenger side with all the wiring/coils/sensors around there.

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That too! I always run the beauty engine valve cover now. I used to leave it off on the old car.


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