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  • Magnuson Supercharger Pentastar Testing Dyno Review

    Im probably going to prison for breaking and entering at Magnuson(LOL), but in the meantime lets pound on it a little and see how she responds.

    Here's the plan. We are going to install it on a stock 13 Rubicon. We will dyno before and after with stock 4.10 gearing and stock 32" tires. This is the most accurate way for us to figure the true power gain.

    Then we will do the 0-60 with stock components, play with it off road... the works. Pics and video during install and testing coming.

    I cannot wait to get this thing installed. The sound alone will be worth it. Im expecting a shriek sound out of the eaton style screws.
    This article was originally published in forum thread: Magnuson Supercharger Pentastar Testing Dyno Review started by JeepLab View original post
    Comments 19 Comments
    1. JeepLab's Avatar
      JeepLab -
      2nd dyno chart for magnuson

      Attachment 289

      Now, about the chart I posted,

      Magnuson told me to bring it to 6100 rpm. We took it to 6500.

      Here's what I want you to see.... there is no "crest".

      The power line keeps going, What that says is that this unit has more firepower than this dyno is showing. The mechanics wanted us to take it to 7k, but I wouldnt let them with the truck not belonging to me.

      Pete was standing right there, and seemed like he wasnt against taking it further, but had something gone wrong i wouldnt have forgiven myself.

      He LOVES his jeep more than anyone I know, and Im a guy who LOVES his Jeep.

      No one here is taking their truck past 6500 regardless.

      What I like -

      That torque curve is very strong, and its consistant, when you check the prior dyno, its the same line.

      What I dont like -

      Anyone who buys this unit should consider an intake, Im going to put on on Sweet Pea, because I think the stock intake is -

      1. air constrictive.
      2. kills the sound that pentastar makes.

      Right now Sweet Pea sounds far more "polite" than betty, but would she scream with the intake on? Get the plastic cover off her mouth. I'm pretty sure the difference would be night vs. day.

      Ill get one on and sound bite it.

      Then the question will be....what does she dyno at with the intake's less restrictive air flow?.......
    1. Pete's Avatar
      Pete -
      I am expecting an intake and exhaust to make a drastic difference in sound. To the layperson, I'm not sure you would even here the supercharger.
    1. JeepLab's Avatar
      JeepLab -
      Agreed on both accounts.

      I think an intake will change the sound significantly.
    1. Deola's Avatar
      Deola -
      Quote Originally Posted by JeepLab View Post
      Agreed on both accounts.

      I think an intake will change the sound significantly.
      Planning to add this before summer with 5.13s to my 12 jkur on 35s with a 6 speed. I guess your opinion of the afe intake on the old site means that's the one you would suggest...?
    1. JeepLab's Avatar
      JeepLab -
      Quote Originally Posted by Deola View Post
      Planning to add this before summer with 5.13s to my 12 jkur on 35s with a 6 speed. I guess your opinion of the afe intake on the old site means that's the one you would suggest...?
      did you already gear this truck? (5.13 seems like a lot for a 6spd)

      and also, the AFE intake is a good unit. The pipe to the intake is metal, VS. a lot of options are plastic.
    1. Deola's Avatar
      Deola -
      Quote Originally Posted by JeepLab View Post
      did you already gear this truck? (5.13 seems like a lot for a 6spd)

      and also, the AFE intake is a good unit. The pipe to the intake is metal, VS. a lot of options are plastic.
      I only use my rubi as a off road or towing rig, the ripp jku sport is the dd. Gears will be done at the same time as sc install. Stock 4.10s now. It's a heavy jku with fab fours(ff)front lifestyle full bumperw/ grill guard, winch, ff rear bumper and tire carrier, and ff rocker guards, interior is linexed. Metal flares in near future. Hard top. And I have a 10ft high side trailer that I load with ranked wood, and have to cross three steep graded/ low speed mountains to get from my land to my house. No interstate ever.
    1. JeepLab's Avatar
      JeepLab -
      Quote Originally Posted by Deola View Post
      I only use my rubi as a off road or towing rig, the ripp jku sport is the dd. Gears will be done at the same time as sc install. Stock 4.10s now. It's a heavy jku with fab fours(ff)front lifestyle full bumperw/ grill guard, winch, ff rear bumper and tire carrier, and ff rocker guards, interior is linexed. Metal flares in near future. Hard top. And I have a 10ft high side trailer that I load with ranked wood, and have to cross three steep graded/ low speed mountains to get from my land to my house. No interstate ever.
      Lets get some pics of that rig! and one with the trailer.
    1. Deola's Avatar
      Deola -
      Quote Originally Posted by JeepLab View Post
      Lets get some pics of that rig! and one with the trailer.
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    1. Deola's Avatar
      Deola -
      ......yeah, that didn't work
    1. JeepLab's Avatar
      JeepLab -
      Were you linking? or uploading the photos?
    1. Deola's Avatar
      Deola -
      Was attempting to upload
    1. Pznivy's Avatar
      Pznivy -
      I'll be the 6spd with 5.13s really creeps in 4 lo 1st gear.

      It must almost seem like its not moving. Thats what you want when your rock crawling. Nothing wrong with MORE GEAR.
    1. Yoinkers's Avatar
      Yoinkers -
      Did we ever get an intake on this SC?

      no way I could afford it, but I'd love to hear it.
    1. JeepLab's Avatar
      JeepLab -
      Funny,

      I have a truck (Tonka) that I want to take the intake off, AFE proguard 7,

      And I cannot get Tonka and Sweet Pea in the same place at the same time to do it.

      It will happen eventually.
    1. acchou's Avatar
      acchou -
      Quote Originally Posted by JeepLab View Post
      Funny,

      I have a truck (Tonka) that I want to take the intake off, AFE proguard 7,

      And I cannot get Tonka and Sweet Pea in the same place at the same time to do it.

      It will happen eventually.
      I have a 2014 Rubi and stock everything except for the 4'5 lift and 37's. My question is on the transfer case, drive shaft and differentials. There will be additional stress on those things because of higher torque. But I am wondering on how long the stock items will last?
    1. Yoinkers's Avatar
      Yoinkers -
      Quote Originally Posted by acchou View Post
      I have a 2014 Rubi and stock everything except for the 4'5 lift and 37's. My question is on the transfer case, drive shaft and differentials. There will be additional stress on those things because of higher torque. But I am wondering on how long the stock items will last?
      ^^ Thats a tough one. The problem is, that there is no magnuson or ripp or prodigy turbo rig that is more than 3 years old right now. Are the parts you mentioned getting beat up? Maybe. No one can really tell until one breaks and we can see, 55k miles, 2012, and the transfer case went.

      Also, how hard are the parts wheeled? Normally breaking stuff off road is when you hit the throttle with a tire bound up or goosing the throttle and the tires slide and then grab. In any of those cases your not going to blame the power mod. That would be on the driver.

      Now that being said. If you had a supercharged babied mall crawler, and one of those big ticket parts was to go earlier than normal, THEN i'd blame the power mod.

      We are going to have to wait and see. I think the bottom line is, if you are smart with your jeep, and change the fluids and wheel responsibly, I doubt the extra power would hurt the components your talking about.
    1. acchou's Avatar
      acchou -
      Quote Originally Posted by Yoinkers View Post
      ^^ Thats a tough one. The problem is, that there is no magnuson or ripp or prodigy turbo rig that is more than 3 years old right now. Are the parts you mentioned getting beat up? Maybe. No one can really tell until one breaks and we can see, 55k miles, 2012, and the transfer case went.

      Also, how hard are the parts wheeled? Normally breaking stuff off road is when you hit the throttle with a tire bound up or goosing the throttle and the tires slide and then grab. In any of those cases your not going to blame the power mod. That would be on the driver.

      Now that being said. If you had a supercharged babied mall crawler, and one of those big ticket parts was to go earlier than normal, THEN i'd blame the power mod.

      We are going to have to wait and see. I think the bottom line is, if you are smart with your jeep, and change the fluids and wheel responsibly, I doubt the extra power would hurt the components your talking about.
      Thank for the reply. I do trails that are green to black. I stay off the red since it's mostly mountains and mountains of rocks at Rausch Creek Off Road park. From the sounds of it that it will not break right away (Knock on wood) after I super charge it.

      Another quick question. Is the premium gas a requirement after the SC? or can I still use the regular. I know I will not get the maximum performance. I am more worry about the adverse affect. As to if it will hurt the engine/SC.
    1. JeepLab's Avatar
      JeepLab -
      Quote Originally Posted by acchou View Post
      Another quick question. Is the premium gas a requirement after the SC? or can I still use the regular. I know I will not get the maximum performance. I am more worry about the adverse affect. As to if it will hurt the engine/SC.
      If you're gonna pony up the cash for the SC, feed your engine the good gas.

      Will it run on regular? Sure, but if you have a failure at 120k, was it because you power modded? or because you cheaped out on gas? You won't know.

      BB only drinks Shell 93.
    1. Timmy's Avatar
      Timmy -
      Quote Originally Posted by acchou View Post
      I have a 2014 Rubi and stock everything except for the 4'5 lift and 37's. My question is on the transfer case, drive shaft and differentials. There will be additional stress on those things because of higher torque. But I am wondering on how long the stock items will last?
      Probably the best place to look for your answer is with people who have done the V8 swap years ago. The SC's and Turbo's are too new to even have enough data to know how the stock parts will hold up. The V8 swap guys have been doing that for years now, so they would have the most real-world data on how much added torque the stock parts can handle.

      For the differentials, at least you know the specs of a Dana 44, etc. and those are often used in the application of a V8. For the drive shaft, well, it is busts, damn, it busts, and you buy a new one. I wouldn't be surprised if there is lots of information out there on the transfer case and what other vehicles are using the same transfer case that potentially have a higher torque engine in them? I know *nothing* about the t-case, but, did it come from Mercedes? Is it used in the Grand Cherokee as well? Maybe a Durango? If so, then you'll probably have your answer that it can handle more torque just fine.
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