I've added A/C back in my car and it now blows directly onto the air filter. Is that OK?
Printable View
I've added A/C back in my car and it now blows directly onto the air filter. Is that OK?
Just watching this thread. Knocked some tire boogers out of my $7.99 Fram air filter that goes in my side-draw LT1 airbox.
RAM AIR!
Al-you lost everyone in this group when you said "reasonable person". Seems obvious that even the directors disagree on what constitutes ram air and what should be allowed/not allowed.
There isn't even an answer to whether a 93-97 car with an LS can run the factory LS air filter or if one can run the factory LS filter with an LT.
A director explained to me that unless it's a sealed system grabbing air then it's not a ram air and legal. This would include trimming the bottom of the LS tray which clearly isn't sealed.
I believe that the air filter directly open to the front of the car (i.e., a 120 mph blast at the end of the COTA back straight) could provide increased air pressure. Does that settle it? Fuck, we're probably now stuck on the definition of a reasonable person. I think I'm screwed on that one...
RichardP
Bear in mind for something that questionable I would require data to allow it, but if the data supports it then it is what it is. My point is that I don't like the idea that something can be deemed illegal at a glance because one person perceives it is ram air. The way the rule is written allows just that with no opportunity to objectively prove oneself one way or the other. In the case of the hacked up LS airbox, there is still a leak that flows 300whp unrestricted that, as far as I can tell, has no appreciable positive air pressure trying to force it's way in.
This LS airbox may be a bit of a 1 off. I think it's worth validating with actual data and perhaps specifying how many square inches can be removed.
1. Can we get an answer on the LT cars that have swapped to the LS being able to run the factory original bottom air box?
2. Can we get an answer on the LT cars being able to run the factory original bottom air box?
Those should be an easy yes?
Then we can get into the definition of ram air and whether cutting the plastic is the same as removing the headlight and installing a duct to grab air and direct it at the open air filter. We don't use data for much more important considerations so why would we start with this? Also, I have no clue how to obtain data on my LS1 or a 5.0, 4.6 etc.
Not sure I understand what "bottom air box" means, but the only stock unmodified air/filter assembly I am aware of that is not legal is the LS SS one, regardless of what body the engine is updated/backdated into.
My definition has always been that if the cross section flow area that lets the air into the "duct" is larger than the cross section area of the TB and any bypasses to the TB then you have the makings for increasing pressure...so don't do that.