LS2 SUBARU

LS2 Turbo Swapped Subaru STi Build

Jesse from JT Coating had us do a big turbo build on his Subaru STi in the past and it made just over 600whp on E-85. It looked great at the shows, and performed well on the street, but Jesse wanted to build something different for next seasons events. Screen Shot 2017-10-05 at 2.08.07 PMScreen Shot 2017-10-05 at 2.08.22 PM

After discussing some options, some type of Chevy LS build was chosen based on cost, performance and overall uniqueness. We began hunting for parts, while Jesse sold off the Subaru parts we would no longer be using.

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An LS2 6.0L engine and transmission was sourced and the project began. Our head fabricator Don took charge on the build and started banging out the mock up phase pretty quickly. Everything went together fairly easy, it was like the V8 was meant for the car minus a few small changes. While the engine was out a BTR cam package was installed with a few other supporting mods. As many of you know the supporting mods can be the most important parts of a project.

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Once we had the general setup of the engine and headers laid out, the turbo kit began being fabricated. A cast wheel Borg Warner S475 was the turbo of choice, with complimentary Turbosmart & Vibrant pieces to bring it all together.

 

 

 

 

The excitement of seeing the turbo kit and big front mount intercooler mocked up really had us motivated to get this one running. To make all of this work, the cooling system was custom mounted in the trunk with some Radium Engineering bits and good old fashioned ingenuity.

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To go along with the AEM Infinity ECU, the new CD-7 display was custom mounted in the dash to give a clean factory appearance. This makes visibility of all engine parameters easy to monitor while driving around. Plus digital displays just look cool on any race inspired project.

IMG_4987   Now that most of the mock up was complete, we disassembled the car and gave Jesse a slew of parts for him to work his magic on. The quality blew us away when he brought them back after powder coating. We knew this would be the head turner we envisioned from the beginning now.

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With final assembly under way, we gave Karl from K.P. Tuning a call to sprinkle his LS magic on the build. He came by and went over the build to finalize a few loose ends and get the car started up. It fired up without a hitch and actually sounded pretty tame still using the aftermarket Subaru cat-back exhaust. There wasn’t a person in the shop that didn’t have a big smile on their face hearing the car running for the first time. Screen Shot 2017-10-05 at 2.14.04 PM

Now it came down to strapping it on our in house DynoJet, and backing up all the long hours of work. This car runs on regular old 93 octane pump gas, so we filled up and had K.P. get to work. On only the second pull at single digit boost levels it laid down 599whp. Without even blinking an eye it was about to eclipse what the fully built e-85 Subaru setup did.  By the end of the tuning session the final horsepower number read 794whp at only 12psi! K.P. suggested upgrading the fuel system if we wanted more power, being as it is on stock Subaru lines, in tank fuel pump, and only 1000cc injectors.

LS2 SUBARU

Check out the dyno video below, and contact us if you have any questions about starting your own custom build. We will be starting on a second LS swapped Subaru soon with its own unique twist, and we already have a 2JZ Subaru build underway that we can not wait to share with the world.

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Procharged Coyote Build

We’ve done Mustangs with Prochargers before, but this one is a little different. The owner brought us the car with the Procharger already installed and wanted to do a little twist on it. He wanted an smaller diameter pulley for more boost, but a waste gate on the intercooler piping to regulate boost pressure, and allow for a better torque and turning a procharger into a TORQUE MONSTER.   With this kind of setup he will be able to run different amounts of boost up to the max psi that the pulley produces.

dsc_0233dsc_0239dsc_0228Placement of the red Tial blow off valve and wastegate was definitely important. From the outside others had to know that this Mustang was something special. We decided to mount them on each side of the intercooler so that they’d show in the lower part of the front bumper. Their red color definitely makes their presence known.

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dsc_0555The small diameter pulley can produce about 20 psi of boost, but the wastegate will be able to regulate it. The Tial  BOV is located under the MAF on the left side of intercooler,  which Would cause distorted readings.  To solve this, we relocated the MAF to the cold-side intercooler pipe. we also added a PMAS Hpx  Frequency Maf to allow the proper scaling for this setup  This smoothed out readings and allowed us to get accurate data while tuning.

dsc_0576While we were under the hood, we upgraded the crank sprocket and oil pump gear as preventative maintenance, since they are known to fail. Once all of the fabrication was done, it was pulled onto our Dynojet for some tuning.

dsc_0637editdsc_0679editAfter some work on the Dyno this thing laid down an Impressive 702whp and 575wtq at 13 pounds of boost. The tune was Done through Hp Tuners.  The blue lines are from the previous tune with the procharger before the smaller pulley and other modifications we did this time around. It’s definitely a substantial increase in power

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Here’s some photos of everything all finished up.dsc_0205editdsc_0579editdsc_0586dsc_0168editdsc_0178editdsc_0153editdsc_0124

Current modification list:

Corsa Sport Cat-back

Cat Delete

JMS BAP

PMAS HPX Maf

ID1000 Injectors

MGW shifter

MMR Crank & Oil Pump Gears

Tial Q BOV

Tial 44mm Wastegate

3.8″ Procharger Pulley

Custom Intercooler Piping

Custom Tuning

 

We will be offering this setup as an exchange service with modified inter coolers and piping kits  for anyone interested please contact us  Sales@psiproformance.com

Squeaky Clean CRX

This Honda CRX build has been in the works for a while now, and this thing is clean, and I mean clean. Everything in the engine bay looks brand new, and most of it is.

dsc_0866editdsc_0032edit dsc_0844editWe built the whole turbo kit. It’s running a Garrett disco potato turbo for some quick spooling action along with a ram horn manifold, custom piping and intercooler. dsc_0035edit dsc_0119edit dsc_0137editIt’s getting  buttoned up as we speak and will pop over to the dyno to get tuned up soon. This little guy is going to haul ass and be boat loads of fun once its back on the streets. dsc_0172edit dsc_0983edit

Factory Five 818 Car

This is a project that you don’t see every day. A customer brought us a Factory Five 818 kit car. It was running a completely stock WRX motor and 5-speed with a Megasquirt MS3Pro controlling everything.

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We ended up tossing on a very lightly 2017 STi turbo and intercooler to make this thing even more fun. It currently doesn’t have its body, but it’s definitely cool to see all of the inner workings of the suspension and frame.

dsc_0847dsc_0860dsc_0851We’re going to get this over to the dyno for some tuning action. With the weight of this car just touching 2,000 pounds, I can’t imagine how much fun it’ll be to drive. I’m thinking this will end up around the 300whp mark. Possibly more since it’s now rear-wheel drive instead of all-wheel drive. Once it’s all tuned up the owner is going to put the body on it and bring it back for a custom exhaust. I can’t wait to see it once it’s all buttoned up.

Procharged Coyote Build

We’ve done Mustangs with Prochargers before, but this one is a little different. The owner brought us the car with the Procharger already installed and wanted to do a little twist on it. He wanted an smaller diameter pulley for more boost, but a wastegate on the intercooler piping to regulate boost pressure. With this kind of setup he will be able to run different amounts of boost up to the max psi that the pulley produces.

dsc_0233dsc_0239dsc_0228Placement of the red Tial blow off valve and wastegate was definitely important. From the outside others had to know that this Mustang was something special. We decided to mount them on each side of the intercooler so that they’d show in the lower part of the front bumper. Their red color definitely makes their presence known.

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dsc_0555The small diameter pulley will be producing around 20 lbs of boost, but the wastegate will be able to regulate it.

dsc_0576While we were under the hood, we upgraded the crank sprocket and oil pump gear as preventative maintenance, since they are known to fail.

Stay tuned for more updates!

 

Current modification list:

Corsa Sport Cat-back

Cat Delete

VMP Boost-a-pump

ID1000 Injectors

MGW shifter

MMR Crank & Oil Pump Gears

Tial Q BOV

Tial 44mm Wastegate

3.85″ Procharger Pulley

Custom Intercooler Piping

300ZX: Part 2

dsc_0244editdsc_0247 The 300ZX we have been working on is getting tidied up! Everything is coming into place in this tight engine bay. We recently finished up a custom catch can that’s mounted front and center. Once finished, it’ll be all polished along with the power steering reservoir.

After some work on the dyno, this thing was making some serious power. The owner requested both 93 and 100 octane tunes. With just the 93 it laid down a mean 508whp and 411wtq, making it an already serious street machine. After draining the tank of 93 and pouring in some 100 octane, things got interesting. Some more straps needed to be added to the rear to keep from spinning tires on the dyno. The result,  630whp and 510wtq at 26psi! This is going to be one clean and fast Z out on the streets. This project has been in the works for a long time now, and we’re definitely very proud of the end result.

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Fab Shop

The fabricators here at PSI are always pumping out some really cool stuff. This post features a bunch of stuff that they produced over the past few months.  Enjoy!

Evo X Turbo Kit

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Intercooler for a Twin Turbo 300ZX

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Titanium Hood Exit for a RWD Converted WRX

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Turbo Kit for a 2017 STi. Powdercoating & Ceramic Coating done by JT Coating

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Full Turbo Kit and Intake Manifold for a 2JZ swapped 350Z

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Hood Exits & Catch Can for an EK Civic

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Evo VIII Exhaust Manifold

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Vacuum Actuated Exhaust Cutout

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CRX Exhaust Manifold

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TGV Deletes

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2017 STi Turbo Kit

dsc_0424editBoth are 2017 STi’s, but the one on the right is getting the PSI built turbo kit. It’s pretty awesome when a customer brings in a practically brand new car for a cool build. The engine is being left stock… for now, but it’s getting the turbo treatment with a big ole Precision turbo.

dsc_0635The plan is to have all the intercooler piping powder coated wrinkle black, and the header & up-pipe ceramic coated by JT Coating. It’ll have a nice clean look, especially with the shaved and powder coated intake manifold. This setup will be pushing it for a stock motor, but I foresee this car getting a built engine in the near future. Here’s a few pics of the fabrication process.

dsc_0042 dsc_0043 dsc_0202 dsc_0209dsc_0050 dsc_0389editSome mocking up happening right here

dsc_0626edit dsc_0611editAll back from coating and looking fresh! JT coating killed it on this one. Big thanks to them!

dsc_0662edit1008161623b1Everything is getting bolted up and it’s looking good. I’m really digging the wrinkle black powder coating on the compressor housing, intercooler pipes, and manifold. It keeps the car looking brand new and almost stock at first glance.

After getting finished up and tuned by Anthony, it made 388whp and 358wtq at 16 psi! This turbo set-up is capable of a good amount more, but we kept it safe due to the stock engine and clutch.

2017-comparisonHere’s a dyno graph comparing the car when it was stock and after we finished up with the turbo kit and tune. You can see the massive difference in power. With our big tube UEL header, the 5858 Precision turbo hits full boost only 300 RPM past that of a stock STi. Having that much more exhaust flow played a huge role in making these kind of numbers that early in the RPM range.  With a built engine and upgraded clutch, this kit will be ready to handle a bunch more power.  A big thanks to Mike for bringing us this project, and we hope to see him and his STi back soon!

-Ryan

RWD WRX Build – Part 3

dsc_0368This build was getting buttoned up last week. The car made its way onto the dyno, and it was LOUD. The titanium hood exit makes this thing scream. A few things still needed to be buttoned up, but everything else was ready for engine break-in and tuning.

dsc_0522edit dsc_0587editOnce tuning was done, the last few details were finished up.  The hood exit looks sweet with its burnt titanium trim on the hood. It’s definitely a cool touch. Attention to detail is a huge part of all of our builds, and it especially shows with this one.

dsc_0495editThe face of the WRX was put back on, and the car was sent on its way. That wraps up this build for now!

Here’s a few more pictures of the car during its build.

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-Ryan

Evo X Big Turbo Kit – Part 2

 

DSC_0016 Watching a turbo kit come together is always exciting to see, no matter what car it’s on. The intense detail that goes into every piece makes it not only a car part, but a work of art as well.

DSC_0173 DSC_0188And it just looks badass once everything is bolted up, and that big turbo stairs you in the eye. This Evo is craving its appointment with the dyno. Here’s a bunch of extra photos of the turbo kit for your viewing pleasure.

DSC_0287DSC_0343DSC_0559To top everything off we bolted a massive APR Performance carbon fiber wing to the trunk.  Big wings don’t work every time, but it definitely worked this time.

DSC_0629DSC_0582DSC_0621Now lets get this big turbo Evo strapped down for a dyno tune! Check back for for some power figures.

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Check out Part 1

-Ryan