getboosted
Member
Anyone knows the flow rate of the stock upper ic and the ATR unit? Thanks in advance!
-Tuan-
-Tuan-
Flow Rate (CFM) of Stock Upper IC vs ATR Unit
- Thread starter getboosted
- Start date
Lynn D. Brown
New member
Tuan - Don't they claim 10 % more ? Which makes me wonder why anyone would spend the $800., or whatever it is, to buy it ?
U'd think they could lie a little better than that.
U'd think they could lie a little better than that.
DanenGraham
Big in the rear
Not sure but i think i read its like 850CFM for the stocker, the TB flows less so if you ever were pushing that much you would have to change it as well. Think I read that somewhere.
DG
DG
atc82
New member
yeah i always wondered why someone would drop that much money for so little gain. but, it does hold about twice as much coolant i think. My brothers typhoon had one on it when we bought it and there is no performance difference between my stocker and the ATR. it just holds more coolant.
Lynn D. Brown
New member
U really don't necessarily Have to change all of the items in the Air train.
Everybody always says, this "flows" this, that "flows" that, which doesn't really mean anything. Any part will work under any condition, it's just a matter of how much pressure drop U will get thru it.
To really know what to replace, U would have to do a pressure study thru the Air train to see what the Pressure drops, or Delta P's, are for each individual item. I work in Petrochemical plants and we do this all the time. The item w the highest Delta P is called the "bottleneck".
So, we have the Inlet filter and air line, the Turbo, the IC inlet line, the IC, the IC out line, the TB, the Upper and Lower manifolds and finally the Heads. If U want to get Max HP out of any engine - AT MAX RPM - U obviously need to minimize the Delta P thru the Air tract. The restriction has little or no effect at lower RPM's. This is particularly true w NA engines, and not as significant w our Turbo beasts. An IC engine is really just a big Air Pump. The more air U get thru it the more power U get, assuming of course U have enuf Fuel pump to keep up.
It seems to me the most restriction is in the Heads, followed by the IC, which has to have Delta P in order to transfer any heat away. So, if Ur going to have an IC, U don't have alot of choice here. It U knew the T drop that the IC causes, U can calculate whether an IC is really worth having. I would think that it is, but maybe I'll do the calcs one of these days, and let U guys know what I find out.
After this may be the inlet IC hose, because it has that real Hot air which has expanded from the Turbo. If the ATR is worth having it would have to be because it cools better. Not sure on that, somebody would have to take temperatures to know.
Sorry 4 all the bandwidth.
Everybody always says, this "flows" this, that "flows" that, which doesn't really mean anything. Any part will work under any condition, it's just a matter of how much pressure drop U will get thru it.
To really know what to replace, U would have to do a pressure study thru the Air train to see what the Pressure drops, or Delta P's, are for each individual item. I work in Petrochemical plants and we do this all the time. The item w the highest Delta P is called the "bottleneck".
So, we have the Inlet filter and air line, the Turbo, the IC inlet line, the IC, the IC out line, the TB, the Upper and Lower manifolds and finally the Heads. If U want to get Max HP out of any engine - AT MAX RPM - U obviously need to minimize the Delta P thru the Air tract. The restriction has little or no effect at lower RPM's. This is particularly true w NA engines, and not as significant w our Turbo beasts. An IC engine is really just a big Air Pump. The more air U get thru it the more power U get, assuming of course U have enuf Fuel pump to keep up.
It seems to me the most restriction is in the Heads, followed by the IC, which has to have Delta P in order to transfer any heat away. So, if Ur going to have an IC, U don't have alot of choice here. It U knew the T drop that the IC causes, U can calculate whether an IC is really worth having. I would think that it is, but maybe I'll do the calcs one of these days, and let U guys know what I find out.
After this may be the inlet IC hose, because it has that real Hot air which has expanded from the Turbo. If the ATR is worth having it would have to be because it cools better. Not sure on that, somebody would have to take temperatures to know.
Sorry 4 all the bandwidth.