Categories

Full Race - Mitsubishi Evo 8/9 ProStock Turbo Manifold

Full Race - Mitsubishi Evo 8/9 ProStock Turbo Manifold

$1,012.50 $1,049.00
(You save $36.50)
(No reviews yet) Write a Review
SKU:
FR-TM-EVO-PSTK
Shipping:
$30.00 (Fixed Shipping Cost)

Description

Full-Race ProStock manifold specifically designed for the EVO VIII and EVO IX! This high quality robotically-TIG welded stainless steel turbo manifold replaces and outperforms the OEM cast turbo manifold. This manifold upgrade will produce more power throughout the entire powerband when compared to any other aftermarket header or ported stock manifold. If you are looking to maximize power output for a stock-based turbo setup (Evo 8/9, FPgreen, TME) this header is for you!

Applications:

  • Mitsubishi EVO VIII
  • Mitsubishi EVO IX

Full-Race EVO ProStock Turbo Manifold features:

  • Precision Fabricated from thick wall stainless steel
  • Robotically TIG welded construction
  • CNC/Ported head flange
  • Sealing surfaces machined flat ensuring a leak free seal
  • ProStock design allows use of all factory or aftermarket components (02 housing, downpipe, oil & coolant plumbing, charge pipes, etc.)

About Twin Scroll: Twin scroll turbo system design addresses many of the shortcomings of single scroll turbo systems by separating those cylinders whose exhaust gas pulses interfere with each other. Similar in concept to pairing cylinders on race headers for N/A engines, twin scroll design pairs cylinders to one side of the turbine inlet so that the kinetic energy from the exhaust gases is recovered more efficiently by the turbine. For example, if a four-cylinder engine’s firing sequence is 1-3-4-2, cylinder 1 is ending its expansion stroke and opening its exhaust valves while cylinder 2 still has its exhaust valves open (while in its overlap period, where both the intake and exhaust valves are partially open at the same time). In a single scroll AKA undivided manifold, the exhaust gas pressure pulse from cylinder 1 is therefore going to interfere with cylinder 2’s ability to expel its exhaust gases, rather than delivering it undisturbed to the turbo’s turbine the way a twin scroll system allows.
The result of the superior scavenging effect from a twin scroll design is better pressure distribution in the exhaust ports and more efficient delivery of exhaust gas energy to the turbocharger’s turbine. This in turn allows greater valve overlap, resulting in an improved quality and quantity of the air charge entering each cylinder. In fact, with more valve overlap, the scavenging effect of the exhaust flow can literally draw more air in on the intake side while drawing out the last of the low-pressure exhaust gases, helping pack each cylinder with a denser and purer air charge. As we all know, a denser and purer air charge means stronger combustion and more power... but the benefits of twin-scroll design don’t end there. With its greater volumetric efficiency and stronger scavenging effect, higher ignition delay can be used, which helps keep peak combustion temperature in the cylinders down. Since cooler cylinder temperatures and lower exhaust gas temperatures allows for a leaner air/fuel ratio, twin scroll turbo design has been shown to increase turbine efficiency by 7-8 percent (faster spool, quicker response) and result in fuel efficiency improvements as high as 5 percent. It is wise to size the turbine housing A/R larger than the single scroll turbine A/R typically used!