PHR S23 Turbo Manifold for 2JZ-GTE for Single wastegate Tial 60mm Single Scroll

PHR S23 Turbo Manifold for 2JZ-GTE for Single wastegate Tial 60mm Single Scroll

Equal Length Design

The Powerhouse Racing S23 Turbo Manifold features equal length (and equal volume) runner design. This means the distance from the exhaust port to the turbo is equal between all 6 runners. This not only produces a heavenly exhaust note that you won't find anywhere else, but also increases overall performance. 

The even exhaust pulse helps each runner to scavenge the next pulse and provides consistent exhaust pressure throughout the manifold, at the turbine wheel and at the wastegate. You will find this produces higher peak power, better spool, lower exhaust back pressure, and better boost control.

23 vs 45 vs 50

You'll notice the second two digits on our manifolds are different (eg: S23 vs S45). What's the difference between the manifolds? Runner size. Below is a chart to help differentiate between manifold runner sizes.

Runner size is an interesting debate. You can think of this in the same manner as Turbine Housing A/R if you are familiar with it. A smaller runner restricts flow, but increases exhaust gas speed. A larger runner increases flow but decreases exhaust gas speed. Higher runner flow will result in slightly higher peak horsepower, but slightly slower spool. Lower runner flow will result in slightly lower peak horsepower, but slightly faster spool. 

The decision on what works best for you depends on how you plan to use your car. If you are trying to maximize horsepower for your turbo, a larger runner may benefit you. If you want better all around power, a smaller runner may benefit you.

None of our manifolds are poor at making horsepower. Our 23 and 45 turbo manifolds both are rated for the same horsepower. UP to 2000 or more if you have a turbo that can do it! The turbo you choose plays a much larger role in the horsepower you can make. The manifold is often better chosen after you decide what turbo you will use and where you want your performance to be.

Our 50 turbo manifolds are reserved for PRO MOD Drag Race Turbo's and paired with a capable turbo, can produce anywhere from 1500hp to over 3000hp!

Installation

Equal length manifolds can be a real pain to install, but we have focused on trying to ease the burden of doing so. We include short studs for our 2JZ-GTE manifolds and provide a flange nut with a smaller flange to sit next to the runners. We pay careful attention to the area around the stud to make sure it can seat properly and you can get the necessary tools to the nut.

Fitment

PHR builds the best fitting manifolds. Turbo positioning is ideal. We allow for plenty of room for downpipes, and oil drains, and they fit perfectly under the stock supra hood, even with very large turbos.

A note for IS300 owners: This manifold will not fit on your car