1. Symmetric V-Shaped to Turbine & External Wastegate
Internal wastegate/actuator will release air at a maximum of how much boost pressure? 0.8, 1.2 bar? An option to increase boost levels is to use external wastegate. Symmetric V-shaped improves exhaust air flow to external wastegate, and promotes more accurate functioning of the wastegate.
http://www.turbosmartdirect.com/install/Ultragate.pdf
2. Tubular Steel
DSport magazine reported 20 horsepower and 15lb-ft of torque increase and better performance at all levels of the powerband (low end, midrange and top end) after they swapped a cast iron manifold with a unit made of tubular steel.
http://www.dragsport.com/issue/12/feat_article.shtml
3. Equal Length
Theoritically, can result in more consistent exhaust pulses going into the turbine.
http://www.dragsport.com/issue/12/feat_article.shtml
4. Short
Longer runners tend to lose too much energy through heat loss.
http://www.dragsport.com/issue/12/feat_article.shtml
5. Ceramic Coated
Also prevents energy loss for the exhaust gases, and perhaps more importantly, keeps engine temperature low. This is because the Evo exhaust manifold is located directly behind the radiator, and can help to boil the water inside the radiator.
Can I buy an exhaust manifold which possesses all these ideals for under RM1k?
Internal wastegate/actuator will release air at a maximum of how much boost pressure? 0.8, 1.2 bar? An option to increase boost levels is to use external wastegate. Symmetric V-shaped improves exhaust air flow to external wastegate, and promotes more accurate functioning of the wastegate.
http://www.turbosmartdirect.com/install/Ultragate.pdf
2. Tubular Steel
DSport magazine reported 20 horsepower and 15lb-ft of torque increase and better performance at all levels of the powerband (low end, midrange and top end) after they swapped a cast iron manifold with a unit made of tubular steel.
http://www.dragsport.com/issue/12/feat_article.shtml
3. Equal Length
Theoritically, can result in more consistent exhaust pulses going into the turbine.
http://www.dragsport.com/issue/12/feat_article.shtml
4. Short
Longer runners tend to lose too much energy through heat loss.
http://www.dragsport.com/issue/12/feat_article.shtml
5. Ceramic Coated
Also prevents energy loss for the exhaust gases, and perhaps more importantly, keeps engine temperature low. This is because the Evo exhaust manifold is located directly behind the radiator, and can help to boil the water inside the radiator.
Can I buy an exhaust manifold which possesses all these ideals for under RM1k?
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