What I'm saying is on a on a damp moist morning. Why is it that my 4.0 picks up really nice compared to say a hot day? There's a noticeable difference..
Anyone install hood vents?
- Thread starter 1TrackJack
- Start date
What I'm saying is on a on a damp moist morning. Why is it that my 4.0 picks up really nice compared to say a hot day? There's a noticeable difference..
It's only due to the temp, not the moisture. Engines don't burn water very well, and it affects power production, but is offset by temps.
Check out this density altitude calculator
https://wahiduddin.net/calc/calc_da_rh.htm
That's not the correct assumption
If jeep needed vents for extra engine cooling they would have them integrated into the factory design.
Vents work, they just are not needed in a normal jeep with a properly operating cooling system.
We are also adding venting to the engine bay for reasons other than performance. Jeep engineers didn't care about the longevity of these vehicles after a certain point in time. We are 18 years past the last of the TJs.
I'm not disagreeing with you, I am with the other guys assumptions about jeep engineers.
Water injection has been used for decades to lower the air intake charge temperature to reduce premature ignition
Higher octane fuel has the same effect.
Water injection or higher octane fuel does not increase hp on it's own. Under certain conditions it can minimize the loss of hp especially on VVT engines.
I submit that in most cases, the color of the hood is the biggest factor in under hood temperatures.
Next time you see a white vehicle parked next to a black vehicle on a hot summer day, put your palms on both vehicles.
Higher octane fuel has the same effect.
Water injection or higher octane fuel does not increase hp on it's own. Under certain conditions it can minimize the loss of hp especially on VVT engines.
I submit that in most cases, the color of the hood is the biggest factor in under hood temperatures.
Next time you see a white vehicle parked next to a black vehicle on a hot summer day, put your palms on both vehicles.
I think someone was over compensating....
This is under that hood.
This is under that hood.
C.J. Roberts
TJ Addict
For WHAT?!?! This one should go to the "Unfortunate TJ of the Day" thread.
That's not entirely true as they've been using water injection on turbocharged vehicles for many years and even naturally aspirated....
No, I didn't fit a turbo , what I'm saying is water injection had been used on both turbocharged and naturally aspirated engines, for years , It makes a sizable difference. And on certain mornings when that air density is just right you feel the difference... So if you can take some of the hot air away from the air inlet and give the engine a cooler air mix you going to notice a difference..
They may have, but the bean counters came back with:
It will cost us 11 cents per vehicle to install these vents that will help longevity, however it will only save us 8 cents per vehicle in anticipated claims within the warranty period.
Therefore, this is an unnecessary 3 cents per vehicle additional cost that directly diminishes the profits that we could be getting.
And all us bean counters get an attaboy and a bonus for saving those 3 cents.
It's too costly and to be honest I don't see the point. I'll lower the temperature in the engine bay and just reroute my air intake to say near the front grill or even fit a snorkel..