Your PowerChoke blew a head gasket because that's what the 6.0L's are good at. Ford used the block from the 351 for the 6.0L. The gas block and head bolt design were never meant for the high compression ratio of a diesel. This is a chronic problem with the engine and the reason they developed the 6.4L

 

Pretty cool there are a couple of SC systems out there for these engines, my concern like most I've seen post on here that know engines would be the lack of forged internals, but then again no more boost than these are putting out perhaps everything would be fine for awhile.

I think it'd be nice to see someone build a stroker out of a JK engine, more aggressive cam, little bit lower torque powerband for offroad use, custom head porting, better valves/springs, forged pistons, crank, rods...blah blah blah, long story short another 70 - 90rwhp n/a from a v6 would be nice . Especially because it would all bolt right back up. Then cap it all off with a dyno-tune and McLeod clutch disc replacement. Nothing rediculous power wise, just enuogh to boost it up there some for all the hardware we add over stock vehicle weight. I'd imagine a good engine builder could put together a decent kit for quite a bit less than one of these SC's.

That said I'm not knocking you guys that have them, it's awesome!....expensive but awesome nonetheless

 

Now I agree that the 6.0L has some very serious problems and I will never own one but I do not recall the Navistar International corporation using ford gasoline engine blocks for their engines. Although the 7.3L, 6.0L, and the new 6.4L are designed for ford trucks they are Navistar International engines and share very little if any components with any ford gas engines. Maybe a few sensors if any. General motors learned their lesson with that.

 

This thread is pretty old. Is there any newer info / actual experience running either the Avenger or HESCO superchargers on the 3.8L??? I've heard they can greatly reduce the lifecycle of an engine. Thanks!

 

Any form of Forced Induction will take the life out of a engine overtime. It is all in the tune when it comes to longevity in a engine of any kind.

Don't hold me to this but I am almost sure the Avenger is not in production. IMO.. Root style chargers belong on V8's. And all they do at high boost is blow hot air.

Edit: It looks like you can only get a Avenger SC from Avenger. And I bet there are not many Avenger Charged JK's out there. If so they need to promote there system more like ripp which is a better system then a Root style blower.

 

Do it. You wont regret it

 

Ive got it on my Tj and it was a huge waste of money. Be patient and wait for a good deal on a hemi and youll be much happier.

 

This post can not be any more wrong. With proper intercooling, which the avenger has, it does NOT blow hot air. ANY supercharger is blowing hot air if it is not intercooled. That is the reason for water/meth injection. The air molecules heat up from compressing the air to create boost pressure. My '04 Cobra had an Eaton M112 blower with an air to water intercooler on it stock, and pullied for 14psi(stock is 8), it put out lower iat2(post supercharger, post intercooler), than any of the centri compressors I've had, or my buddies had on their Mustangs, and those even had an air to air intercooler.

The Avenger has the proper intercooling, and with the proper reduction in inlet restrictions, ie cai or some kind of snorkle, low iat temps can be had with that blower setup. Comparable to a centri supercharger. Then their is blower porting, which is very popular on eaton roots blowers. It eliminates air flow restrictions in the blower housing, further lowering iat temps and air flow restrictions.

There is the misinformed knowledge on roots blowers from way back in the day that they are nothing m ore than a hot air fan that cost a few grand, then there is modern facts about roots blowers and how they have their advantages, such as instant 100% boost at 2000rpm and less, and the ability to hold that boost to the redline of the JK engine. Modern intercooling takes care of the heat on a properly designed setup. Roots, twin screw, and centri superchargers all have their advantages and disadvantages. IMHO a twin screw compressor would be ideal for the JK, but a roots is a close second due to the instant boost response.


Here is a Avenger dyno vid, youtube.com/watch?v=MLqbKGtTwxo.

Guy picked up 60rwhp with the Diablosport tuning. 103rwhp, 126 rwtq baseline, 165rwhp , 198rwtq after install and tuning. 55% increase in hp and tq.






All that tuning is done with a Diablosport Predator and the CMR tuning software from Diablosport. IMHO piggyback controllers are ALL gereally junk, and a bandaid to fix the problem of either not knowing or just not wanting to properly tune the vehicle, and are where prob 90% of complaints about a supercharger setup come from, piggy back controllers.



All this being said, I have a 6.1 Hemi/A580 trans in the garage waiting for me to install once a kit come out allowing me to use the A580 trans.

 

I'm would be embarrassed to say how much time and money was put into my Avenger super charger with such little power gain. Keep in mind most of the power that is gained is on the top end, which is almost useless on a trail.

 

Unless you and me are looking at two different dyno charts, I'm not seeing minimal gains at low rpms. Look at the second chart I posted. The stock run and the avenger run are both on that chart. Looks like pretty significant gains at low rpm to me.