stock throtle body hp
- Thread starter beautifulpunk
- Start date
I don't have any factual data and is hard to quantify HP based on a TB, but I would say around 700RWHP.
A little math goes a long way.
calculate the internal 2 dimensional area of the throttle body. Then apply math to solve for critical velocity in that given area. Apply some more math to solve for air density and the result will be in grams/s or lb/hr.
calculate the internal 2 dimensional area of the throttle body. Then apply math to solve for critical velocity in that given area. Apply some more math to solve for air density and the result will be in grams/s or lb/hr.
figgie;1480867 said:
Yes but not everybody knows that math. Not everyone has taken classes in fluid dynamics and the like.
van supra has bean the only one to push a stock thottle that far and still no ffi as well for get the number thou 700 some thing close to 800 not sure don't remmber
Moy;1480873 said:
Don't need to.
a short trip to google lane.
Reynolds Number (for critical Velocity) which just happens to, in one fell swoop, cover it all
http://www.engineeringtoolbox.com/reynolds-number-d_237.html
and to help along
air density = 1.225 kg/m³ (0.0765 lb/cu ft)
and since we are looking to solve for Velocity (U) for the given area...
Reynolds number is 4000 or greater
Air Viscosities
http://www.engineeringtoolbox.com/air-absolute-kinematic-viscosity-d_601.html
there
all the parts needed to solve for U
The equation is
U = V*RE/Dh
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i was just wondering at what point did it become a restriction. i know a stock dsm tb is good for 600hp befor it becomes a restriction
The reality is that we don't have much in the way of real world data, because virtually nobody has pushed it that far.
Reason? Not what you would think... it's due to the screwy intercooler pipe routing. Most guys running bigger numbers scrap the intake manifold and throttle body along with the stock IC pipe routing, and move to an aftermarket FFIM, throttle body, and side to side FMIC.
Reason? Not what you would think... it's due to the screwy intercooler pipe routing. Most guys running bigger numbers scrap the intake manifold and throttle body along with the stock IC pipe routing, and move to an aftermarket FFIM, throttle body, and side to side FMIC.
Usually because a turbo large enough to flow the air to max it out won't allow room for the stock IC piping path.
well i am using a custom built manifold but i wanted to use the stock tb. the chassis is not a supra so bigger ic piping is not a problem. i was doing alot of r&d on the stock parts to see where in need to upgrade first. the turbo, ic,and fuel system have been upgraded. i wanted to see where my air restrictions are before i do alot of head work