Air Capacity Calculator

if($_POST[‘ac_displacement’] == “”) {$ac_errors++;}
else { if(!is_numeric($_POST[‘ac_displacement’])) {$ac_errors++;} }

if($ac_errors != 0) {$ac_error_msg = “Please enter proper values!”;}
else
{
$total_air_capacity = $_POST[‘ac_rpm’] * $_POST[‘ac_displacement’] / 3456;
$view_total_air_capacity = ”   Air Capacity = “.$total_air_capacity;
}
}
//—————————————-
//volumetric efficiency = acutal cfm / theoretical cfm x 100
if($_POST[‘a’] == “ve”)
{
$ve_actual_cfm = $_POST[‘ve_actual_cfm’];
$ve_theoretical_cfm = $_POST[‘ve_theoretical_cfm’];
$ve_errors = 0;
if($_POST[‘ve_actual_cfm’] == “”) {$ve_errors++;}
else { if(!is_numeric($_POST[‘ve_actual_cfm’])) {$ve_errors++;} }

if($_POST[‘ve_theoretical_cfm’] == “”) {$ve_errors++;}
else { if(!is_numeric($_POST[‘ve_theoretical_cfm’])) {$ve_errors++;} }

if($ve_errors != 0) {$ve_error_msg = “Please enter proper values!”;}
else
{
$total_volumetric_efficiency = $_POST[‘ve_actual_cfm’] / $_POST[‘ve_theoretical_cfm’] * 100;
$view_total_volumetric_efficiency = ”   Volumetric Efficiency = “.$total_volumetric_efficiency.”%”;
}
}
//—————————————-
//street carb cfm = rpm x displacement / 3456 x 0.85
if($_POST[‘a’] == “scz”)
{
$scz_rpm = $_POST[‘scz_rpm’];
$scz_displacement = $_POST[‘scz_displacement’];
$scz_errors = 0;
if($_POST[‘scz_rpm’] == “”) {$scz_errors++;}
else { if(!is_numeric($_POST[‘scz_rpm’])) {$scz_errors++;} }

if($_POST[‘scz_displacement’] == “”) {$scz_errors++;}
else { if(!is_numeric($_POST[‘scz_displacement’])) {$scz_errors++;} }

if($scz_errors != 0) {$scz_error_msg = “Please enter proper values!”;}
else
{
$total_street_carburator_size = $_POST[‘scz_rpm’] * $_POST[‘scz_displacement’] / 3456 * 0.85;
$view_total_street_carburator_size = ”   Street Carburator Size = “.$total_street_carburator_size.” cfm”;
}
}
//—————————————-
//racin carb cfm = rpm x displacement / 3456 x 1.1
if($_POST[‘a’] == “rcz”)
{
$rcz_rpm = $_POST[‘rcz_rpm’];
$rcz_displacement = $_POST[‘rcz_displacement’];
$rcz_errors = 0;
if($_POST[‘rcz_rpm’] == “”) {$rcz_errors++;}
else { if(!is_numeric($_POST[‘rcz_rpm’])) {$rcz_errors++;} }

if($_POST[‘rcz_displacement’] == “”) {$rcz_errors++;}
else { if(!is_numeric($_POST[‘rcz_displacement’])) {$rcz_errors++;} }

if($rcz_errors != 0) {$rcz_error_msg = “Please enter proper values!”;}
else
{
$total_racing_carburator_size = $_POST[‘rcz_rpm’] * $_POST[‘rcz_displacement’] / 3456 * 1.1;
$view_total_racing_carburator_size = ”   Racing Carburator Size = “.$total_racing_carburator_size.” cfm”;
}
}
//===============================================
$content = ‘

‘;

$content = addslashes($content);
$content = “\$result=\””.$content.”\”;”;
eval($content);
print stripslashes($result);
[/insert_php]