JEEP 3.6L V6 SUPERCHARGER SYSTEM WRANGLER JK 2012-18I had the older Magnuson TVS1320 (got it used for a steal) on my old 2013 JKUR manual trans and it was pretty good with the high altitude pulley and custom (Diablotoona) tune at sea level.



This new Magnuson TVS1900 is not CARB certified (yet), but am considering it in lieu of an engine swap. PCM has to be sent to Petty's Garage for unlocking and I think they also do the base tune.



Have read a few threads on JL and JT forums, but was hoping some JKF guys have experience with the performance???

 

I have heard that forced induction setups on the 3.6 / auto screw up the shifting sequence and timing. I would want this to be guaranteed before I purchased. Nothing is easy trying to get some power out of Jeep JK's. Engine V8 swaps are easy but if you want original functionality then that gets expensive.
Don't know why people have not researched the tune for 3.6 powered pickups as they have the same engine with more power than a Jeep for performance using the same engine and in a heavier vehicle. FCA have screwed up completely as they put this high revving engine in an application that needs lots of torque under 3000rpm whereas the torque does not get fully realized until 4800rpm which they never seem to get to easy. Anyway tread carefully when trying to get more power. Try gearing down first to 4.56 if you are staying with tires at 33".

 

I would like it "guaranteed" as well, but we all know that ain't happening. The 3.6 never let me down offload even in some pretty steep inclines; crawl ratio, lockers always get it done. Main reason I want more torque/hp (other than it's a sickness) is for the 95%+ time I spend daily driving and highway driving. Wranglers are just bricks, often heavy bricks with high rolling resistance being pushed through space. More power and torque really just helps the beast get out of its own way.

I think if I go the Magnuson TVS1900 or 392 Hemi routes I will hold-off on re-gear until the final weight is dialed-in with suspension/steering. Right now I am fine, though if I went 35" would definitely want 4.10.

 

Yes I did realize you were referring to highway performance as almost anything can move these things in low ratio crawling. My point was that to gain even a few hp and some torque or at least move the tq and hp lower down the rpm scale you will feel a difference. That is why I mentioned the comparison with the pickup engine. Same engine, similar ECU but goes better and feels like it is all down low with less performance up top from the last rental truck I drove. That is what you want for Jeep - all go till about 4000RPM. Soon we will start working on my son's 2016 JKUR tune with my HP Tuners. Starting with Power Enrichment coming on at about 2600 not 4600 as it is set now.

 

What engine swap are you considering? If you mean a V8 than that's the way to go!!!
Superchargers are great for cars, meaning something that can use the power at high RPM's.
In my opinion they are worthless where low end grunt is required, as in a Jeep.
Also, you have to consider a centrifugal vs roots. If you go this route, you want something that'll deliver power instantly, which is a roots type.

 

Thanks for the suggestions.

I was considering a turnkey swap from RubiTrux (392 Hemi NAG1) or MoTech (LT1 10L80), but since have chosen to invest the cash when the market dipped/dips.

Had a Magnuson TVS1320 with High-Altitude Pulley, Catch Can, Wideband O2 custom tuning on my 2013 manual JKUR; it was aight. Very familiar with Roots, Centrifugal, Twin-Screw, and Turbo application and how they make power/heat.

If Magnuson runs a sale, might just get this newer TVS1900, or might save the cash?

 

I can fully relate to your need for more power in these Jeeps. I did a 5.9L Magnum swap in my '98 TJ 2 years ago and that hauls like it's suppose to.
My plan is to put a 5.7L Hemi in my 2008 JKUR, but I've decided to buy a Motorhome, so the family can go on a summer trip. So maybe next year.
Good luck.

 

"Da20Captain" did a great spreadsheet and write-up on his 5.7 Hemi swap years ago. I think he spent less than a he would have on a supercharger after selling his V6 and spare parts. It's worth searching his build thread. He said it was easier than he expected and he had no serious mechanical or fabrication skills.

Have a good one Sir and enjoy the trip this summer!