Upper pulley hellcat

Upper pulley hellcat DEFAULT

Metco Hellcat Supercharger Pulley 2.85” (+3-3.5 PSI)

2015 & Newer Hellcat Challenger & Hellcat Charger

Metco Motorsports is now offering a precision-made supercharger pulley upgrade for the Hellcat!  Like all Metco Motorsports pulleys, this pulley is an interchangeable unit that is based on a precision-machined, electroless nickel-plated steel pulley hub, an interchangeable pulley drive ring, and a stock-appearing front pulley cover.  The pulley ring and cover are anodized in black, and all included fasteners are stainless steel or zinc plated. 

Please choose your desired pulley ring size from the drop-down list below.  All components are available separately, so once you have our pulley on your Hellcat, a boost change is as simple as changing the outer pulley drive ring.  All boost level changes require the appropriate PCM revisions and the proper supercharger belt.  Please note that quoted boost gains are approximate, and that your results may vary.  The 2.85" pulley is intended for street applications, while the 2.75" and smaller pulleys are intended for race applications or applications using supplemental injection. Please consult your tuner.

*The Gates K100572 belt is appropriate for applications using the 2.85" or 2.75" supercharger pulley. 

Note:  The original supercharger pulley threads off the blower shaft once the top of the supercharger has been removed and the snout separated from the case.  Previously, installers had to fabricate a fixture or use a modified bolt to rotate the supercharger pulley, but we have machined a steel insert that accepts a 15/16" wrench or socket just for this purpose.  It is available separately under part number HPT1000, or in the drop-down below.  The unique Metco pulley hub design incorporates a similar 1" hex, so a wrench or socket can be used on the pulley hub itself for installation.  The Pin Holding Tool (PN HPT2000, described elsewhere in this section) is also available to assist in holding the supercharger pulley shaft stationary while the hex tool is used to unscrew the original supercharger pulley.  The Pin Holding Tool requires the optional adapter to properly fit the supercharger used in the Demon and Redeye application.  

 All of the components in these supercharger pulley kits are available separately and are listed elsewhere in this section.

This pulley is intended for professional installation only. The upper portion of the supercharger must be disassembled so the supercharger snout can be removed.  Installation instructions are not provided.

 For all supercharger pulley changes, the PCM calibration for the vehicle must be revised to accommodate the increased boost level.  VMP Performance does offer these types of calibrations. You can reach us at 321.206.9369 or [email protected]

User assumes all risks.  Installation of this pulley may affect your warranty.

Sours: https://www.vmpperformance.com/Metco-Hellcat-Supercharger-Pulley-2.85

Give It ALL The Boost

The next step we are taking in our SRT® Hellcat/Demon/Redeye mod series is getting more boost from that glorious supercharger. Again, I have to say upfront, if you care about your warranty, run away from this page as fast as you can.

Lets get started. To get more boost out of your factory supercharger, you need to start with the steps outlined in the PCM removal article. We will be removing the supercharger, and to do that you must complete the same steps mentioned in the previous article.  The way to get more boost is to drive the supercharger faster. This can be done by installing a smaller drive pulley on the supercharger, or a larger crank pulley on the motor. Today we are installing a smaller supercharger pulley, often referred to as “Upper only”.

There are a variety of companies that offer supercharger pulleys, but the one that is best for you and your goals should be discussed with your tuner. In this case we are going with a Litens Hellraiser 2.72” pulley. It is made by the same company that produces the stock supercharger pulley and functions the same way, decoupling when not under load. It functions like stock, but makes more boost and that’s my kind of party!

The first step will be removing the wiper cowl and strut brace as outlined in the PCM article. Next we will be unhooking all components attached to the supercharger so that it may be partially removed from the engine.

Lets start with the air filter and intake tube.  Loosen the clamps on both ends of the intake tube and remove the bolt holding the filter housing. The filter housing simply pops out by pulling up after the bolt is removed.

With the filter and intake tube out of the way, remove the throttle body connector and harness, as well as the small vac line. The push pin pry tool works great for this.

Next we will unhook the driver side MAP sensor from the side of the supercharger.

Remove all bolts from the supercharger lid, there are three types.  One set of long bolts hold the supercharger to the motor with a 10mm head. The other 5 are torx heads, located in the center of the lid, holding the lid to the supercharger.

Remove the connectors for the MAP sensors on the passenger side of the supercharger, as well as the connector for the bypass valve and the harness clip behind it. Don’t forget, there is also a disconnect hose that connects at the bottom of the supercharger snout from the PCV valve on the passenger side valve cover.

Remove the two Torx bolts from both the driver and passenger side fuel rails, and unclip the 4 fuel injector connections on each side. You can then carefully and gently move them out of the way of the supercharger.

Now using a 15mm wrench, loosen the supercharger drive belt tensioner and remove the belt from the supercharger pulley.

Remove the lid from the supercharger carefully, making sure not to damage the gaskets underneath the lid. Also make sure the small o-rings in the center of the supercharger stay in their place.

Double check that you have nothing attached to the supercharger assembly aside from the fuel coolant lines in the rear. We are now ready to lift the supercharger. We will be lifting the front side of it and propping it up. I like to use a rubber mallet as my prop so that nothing is scratched during the install.

Use a pry bar to lift the front side of the supercharger about 6” off the engine.

Place your prop under the supercharger, making sure not to let it rest on anything on top of the motor.

Now that we have it propped up we have access to remove the snout from the supercharger. The first step for this is removing the bypass valve port by removing the 3 Torx bolts holding it on, as well as the MAP sensor.

We can now remove the 6 bolts that attached the snout to the supercharger. The top right bolt may require a swivel adapter to get in there.

You can now fully remove the snout from the supercharger. It may take a little wiggle side to side and back and forth, but don’t worry, there is nothing holding it on anymore. Sometimes they pop off easy and sometimes they take some massaging.

Now we need to remove the stock pulley from the snout. The first step is to remove the tamper proof dust cap. You can try to remove this without damaging it, but it doesn’t really matter as it’s not reused. Pry the cap off with a slim pry tool or screw driver.

You will need a pulley removal tool kit for this next part. I recommend the Demon/Hellcat Pin tools and Hex insert from AAD Performance. It will work on any of the 6.2L superchargers. The hex insert goes into the end of the pulley, and the pin holding tool goes on to the back side of the pulley shaft to hold it in place. It is doable with two break bars, however a good strong impact works well too. The pulley loosens counter clockwise.

With both tools in place, loosen the pulley and remove it from the snout.

Now that the pulley is off, we inspect that there is no damage to the thread on the shaft or to the bearing.

Now we install the new 2.72” Litens Hellraiser pulley as per the instructions that came with the pulley. Please refer to the pulley manufacturers instructions for torque specs or installation details as each is done slightly different.

Verify the new pulley is torqued appropriately and does not come in contact with the face of the snout. We are now ready to install the snout back onto the supercharger and re-install everything in reverse order of how we removed it.

There are some FCA specific procedures here regarding attaching the lid to the supercharger and the supercharger to the engine as well as the snout to the supercharger. Note- On the Demon/Redeye motor, you need to apply red anaerobic gasket maker around the face of the bearing plate on the supercharger. The Hellcat supercharger has a factory fiber gasket that is reused.

Remove your prop from under the supercharger and carefully set it back into place, pay attention that nothing gets pinched between the supercharger and cylinder heads and that it lines up correctly. Place the lid back on and follow the listed procedure to torque all the bolts back to factory specs.

Wrap up putting everything back together that you removed, install your new and shorter supercharger belt, load up your custom tune from your favorite tuner and let the new found ponies run!

Sours: https://www.dodgegarage.com
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HellRaiser for Hellcat - 2.85" Version (920669K)

HellRaiser pulley for Hellcat

A great many owners of Hellcat-powered vehicles from Dodge and Jeep have learned that swapping to a smaller pulley adds gobs of power (with the necessary supporting modifications). The problem with the pulley swap options on the market over the past few years is that they lack the internal decoupling and isolating assembly found in the stock Hellcat supercharger pulley, but that has just changed.

Litens High Performance – a division of the same Canadian firm that produces the stock supercharger pulley for the Hellcat Challenger, the Hellcat Charger, the Trackhawk, the Hellcat Redeye and the Demon – recently introduced the first decoupling pulley for the IHI superchargers on the modern Mopar monsters and it has a fitting name.

The HellRaiser

The HellRaiser pulley is produced by Litens High Performance and distributed by Tendeco to performance shops around North America. This pulley measures 2.85-inches and features the same basic structural design and the same internal decoupling design as the stock pulleys, but those stock pulleys are 3.43-inches (87mm). Where the stock pulley on the Hellcat cars and the Trackhawk deliver around 11 pounds of boost, the HellRaiser increases the boost pressure to 16psi.

Development Details

For those wondering, the HellRaiser pulley from Litens High Performance was developed with some very well-known members of the Mopar Performance community. Rob Laing of Litens (High Performance design team, and a drag racer himself) and John Lussier of Tendeco presented Hellcat and Demon owner Paul Georges with the idea. 

Installation Instructions: HellRaiser_Install_Instructions.pdf

Litens Product Advice: Litens_Product_Guidance_Sept_2020.pdf

Pulley/RPM Reference Chart: Pulley_RPM.pdf

For more info visit: litensaftermarket.com

Sours: https://www.shoplitens.com/hellraiser-for-hellcat-1.html

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Hellcat upper pulley

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