Is there ducting or baffles that flow the air to the radiator, or does the excess air flowing through the grille bleed off to the sides of the compartment to hit the IC's? Do you guys have fans behind the IC's to draw the air in?
It bleeds off the sides of the radiator. The IC's are available with or without fans depending on customer wishes/ usage.
Is there ducting or baffles that flow the air to the radiator, or does the excess air flowing through the grille bleed off to the sides of the compartment to hit the IC's? Do you guys have fans behind the IC's to draw the air in?
There are fans, but they would only come on after running it hard then having to sit in traffic. There is a large amount of air going in the front of the car that does not get used or forced through the radiator. This extra air then goes around to the sides and since he opens the area behind the ic it can go through. Kind of helps reduce drag also.
Here's what I don't understand: the foglights have always been a low-pressure area. You can't add brake ducts to the fog openings --> how in hell are these negative-pressure inlets flowing air to the IC's?
There seems to be some confusion as to how the side mounted intercoolers get the airflow to go through them.
Keep in mind the Michigan car was an ACR with the foglight covers making sure that no air goes through the foglight openings at all.
That car's AIT's on the hot days we drove it were not noticeably different than another car that has the foglight openings open.
On stock car with stock wheel well openings, the foglight openings are low pressure because air cannot flow from the foglight opening to go anywhere but to a closed off wall.
With the front wheel wells modified to accomodate the flow of air through the cores, the foglight openings need not supply even one CFM of air to go through the intercooler cores.
Once the car is going 30 or more MPH, the amount of air coming into the front fascia's opening cannot possibly go through the oil cooler, AC condensor, radiator core, radiator fans and radiator fan shroud.
The excess air normally builds up in the core support without the modifications made to Carl's wheel wells has nowhere to go and adds drag to the front end of the car.
All that pressurization now has somewhere to go through the side mounted intercooler cores like Carl has.
P.S. Carl, you are doing one hell of a fantastic job!
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The slippery slope of modding any car often seems unavoidable.......... Just go turbos and avoid all the headaches! LOL!
normally you would want direct airflow if your looking to gain peak cooling efficiency out of the intercoolers. Its how 99.9 percent of air to air intercooled cars are done.
Cars without direct airflow intercoolers would use scoops to scoop the air into the air to air coolers.
normally you would want direct airflow if your looking to gain peak cooling efficiency out of the intercoolers. Its how 99.9 percent of air to air intercooled cars are done.
Cars without direct airflow intercoolers would use scoops to scoop the air into the air to air coolers.
Andy, the side mounted intercoolers get more airflow through them than the front mount intercoolers becaust there is nothing behind them.
The front mount IC's have the oil cooler, AC condensor, radiator core, radiator fans and radiator fan shroud behind them.
You have to look at the big picture and realize that:
1. Putting the intercooler in front of all of that stuff hinders the car's cooling system capacity.
2. The side mount intercoolers can flow more air through them without all that stuff behind them.
3. The giant opening in the front fascia of the Viper IS a scoop. (A pretty big scoop I might add).
Paolo,
So what I gather from your posts is that if you were to place a bunch of stuff directly behind an intercooler or radiator it will reduce the effectiveness of the cooler, is that right?
Do you have any scientific test data that shows the amount of airflow through an intercooler in either location or are you merely speculating? Also, when you've tested IAT's, what conditions were they tested under and were these tests conducted with the stock IAT sensor or were they conducted with one that is accurate? Roughly what are your IAT's with this set up on a quarter mile pass at twenty psi or so?
Paolo,
So what I gather from your posts is that if you were to place a bunch of stuff directly behind an intercooler or radiator it will reduce the effectiveness of the cooler, is that right?
Do you have any scientific test data that shows the amount of airflow through an intercooler in either location or are you merely speculating? Also, when you've tested IAT's, what conditions were they tested under and were these tests conducted with the stock IAT sensor or were they conducted with one that is accurate? Roughly what are your IAT's with this set up on a quarter mile pass at twenty psi or so?
Jason, I think the picture you are looking at is really not quite the right angle to get a good idea of how it looks in person as far as how much space there is behind the radiator for airflow through it.
Here are a couple more angles to get a little better idea:
People are trying to understand why/how the side mount intercoolers get airflow compared to a front mount intercooler.
I am trying to explain it.
For the street driving tests I have done on the same car with front mount vs side mount intercoolers, I have seen slightly lower AIT's with the side mount intercoolers, the temps coming down more quickly after a pull and definitely lower coolant temps on a hot day for general street driving which is what most people do.
As far as the sensor is concerned, I used the same stock sensor for all the tests.
JID will have some AIT #'s for the end of the 1/4 at 20 PSI when he gets all his new gear on the car.
I would not expect there to be much of a difference between the side mount and front mount intercoolers at speeds seen by the end of the 1/4.
I would, however, expect the AIT's and coolant temps to come back down to normal more quickly with my side mount intercooler setup than the traditional front mount setup.
I have found the side mount intercoolers to be an advantage for hotter weather street driving more than anything else.
That is what most people will be using their TT Vipers to do anyway.
Andy, the side mounted intercoolers get more airflow through them than the front mount intercoolers becaust there is nothing behind them.
The front mount IC's have the oil cooler, AC condensor, radiator core, radiator fans and radiator fan shroud behind them.
You have to look at the big picture and realize that:
1. Putting the intercooler in front of all of that stuff hinders the car's cooling system capacity.
2. The side mount intercoolers can flow more air through them without all that stuff behind them.
3. The giant opening in the front fascia of the Viper IS a scoop. (A pretty big scoop I might add).
Okay ya i would have to agree with you on a few points. The viper is a different from most cars and it does have a big air scoop like quality to it so i'll give you that. I know it will get some air where your intercoolers are located but I feel its not going to get no where near as much air as a typical front mount style.
1. Yes putting an intercooler in front of all your other heat exchanges will slightly hinder the cooling ability of the radiator but i don't think it would be that bad. I have never seen or heard of a front mount intercooler viper overheating.
2. To say the side mounts will get more air then a front mount is just a bit bias thinking and to reason it with that there is nothing behind the intercooler is just not a good reason why it will outperform a front mount. We all know a front mount would get more direct airflow.
3. Im not knocking on your design I know it will still work. Your overal setup is nice and clean
The goal is to keep the car really happy in traffic, or on a track day with high track temps ect... Front mounts work very well in many conditions-- its just designing for the extremes to make the car that much more "stock like" in it's function.
