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Compressed air injection
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Cross-Country
Joined: Feb 2021
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From: FL
Compressed air injection
Looking for feedback, my idea is to inject compressed air into the intake manifold on each of the intake runners. Purpose is obviously to increase hp., My thought is if I could put high pressure air injectors about 3 inches above the fuel injectors and have them kick in at max throttle for 10 to 15 sec. , it might give me that extra boost to pass on the highway. Just a thought, Whats yours ?
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Cross-Country
Joined: Feb 2021
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From: FL
Compressed air injection
Thank You
Thread Starter
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Cross-Country
Joined: Feb 2021
Posts: 71
Likes: 0
From: FL
Compressed air injection
Thank You
Fleet Owner
Joined: Apr 2008
Posts: 24,316
Likes: 5,127
From: 0,0,1
Looking for feedback, my idea is to inject compressed air into the intake manifold on each of the intake runners. Purpose is obviously to increase hp., My thought is if I could put high pressure air injectors about 3 inches above the fuel injectors and have them kick in at max throttle for 10 to 15 sec. , it might give me that extra boost to pass on the highway. Just a thought, What's yours ?
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Moderator
Joined: Jul 2011
Posts: 6,506
Likes: 655
From: Sioux Falls Area
Compressed air supercharging is a thing and is used in some racing venues. It is used in the same way that nitrous is used, max effort short duration.
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
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Thread Starter
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Cross-Country
Joined: Feb 2021
Posts: 71
Likes: 0
From: FL
Compressed air injection
Compressed air supercharging is a thing and is used in some racing venues. It is used in the same way that nitrous is used, max effort short duration.
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
Thread Starter
|
Cross-Country
Joined: Feb 2021
Posts: 71
Likes: 0
From: FL
Compressed air injection
Compressed air supercharging is a thing and is used in some racing venues. It is used in the same way that nitrous is used, max effort short duration.
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
the problem with compressed air supercharging is that all of the air going into the engine has to come from the air tanks and the entire intake tract has to be sealed between the tank and throttle body. You can’t just hook a compressed air line up somewhere upstream of the cylinders because the air will just go out the wrong way through the filter.
it’s a neat idea but it takes a quick acting ball valve to switch between compressed air and atmospheric.
For the amount of trouble you are talking about doing, a small 50hp shot of nitrous would do the same thing and would actually work the way you are talking about
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Well.. how do you propose keeping the pressure in the intake? Better check the math, if you plan on hitting that engine with 10psi you will be picking up parts. The stock internals hold 6psi on average. Also to get 6psi you need roughly a 3.0L supercharger and move a extra 140 cfm at WOT.
Thread Starter
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Cross-Country
Joined: Feb 2021
Posts: 71
Likes: 0
From: FL
Compressed air injection
Well.. how do you propose keeping the pressure in the intake? Better check the math, if you plan on hitting that engine with 10psi you will be picking up parts. The stock internals hold 6psi on average. Also to get 6psi you need roughly a 3.0L supercharger and move a extra 140 cfm at WOT.
Moderator
Joined: Jul 2011
Posts: 6,506
Likes: 655
From: Sioux Falls Area
The only way I could see this idea generating any more horsepower is if there was a significant restriction on the intake snorkel or filter. If that were the case, then perhaps the additional airflow could compensate for the restriction.
I love the idea of compressed air supercharging. It is a really cool idea and it does work, but it takes a dedicated system to make it work.
It takes quite a bit of air just to do a quarter mile. I realize you are talking about short bursts, but the amount of air an engine consumes at 5,000 rpm is mind boggling.
I love the idea of compressed air supercharging. It is a really cool idea and it does work, but it takes a dedicated system to make it work.
It takes quite a bit of air just to do a quarter mile. I realize you are talking about short bursts, but the amount of air an engine consumes at 5,000 rpm is mind boggling.
Logistics Pro
Joined: Jan 2001
Posts: 3,740
Likes: 37
From: Central NYS
Going to need a way of increasing fuel flow when the compressed air is injected into the intake manifold, other wise the extra pressure in the intake will effectively reduce the ability of the fuel pump/fuel injectors to squirt fuel into the higher pressure in the intake runners. That makes the engine go lean and go boom.
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