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post #1 of 108 Old 01-15-2010, 12:07 PM Thread Starter
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Supercharger wear and tear

My 4 door jk rubicon is currently being built at the factory and I have been researching both hemi swaps and superchargers. Apparently, AEV is currently not offering hemi swaps for manual transmission and it also costs approximately $20,000! Yikes! yet so it looks like I will be going with a supercharger. I have been told that superchargers do put wear on the engine. Does anyone know how much wear and will I be replacing my engine prematurely because of the supercharger. Would anyone advise against it?

Last edited by Duexmachina; 01-15-2010 at 04:41 PM.
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post #2 of 108 Old 01-15-2010, 02:34 PM
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It is a function of the boost. The 3.8L was not intended to have a blower, but if you add a blower, the more boost, the higher the stress on the powertrain which may result in shorter life and/or component failure.

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post #3 of 108 Old 01-15-2010, 03:26 PM
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Originally Posted by Duexmachina View Post
My 4 door jk rubicon is currently being built at the factory and I have been researching both hemi swaps and superchargers. Apparently, AEV is currently not offering hemi swaps for manual transmission yet so it looks like I will be going with a supercharger. I have been told that superchargers do put wear on the engine. Does anyone know how much wear and will I be replacing my engine prematurely because of the supercharger. Would anyone advise against it?
The store doesn't have any pants, so I am going to just buy shorts instead... dumb! Do some research so you can compare apples to apples and not apples to oranges. There are other vendors who offer a manual transmission swap. When you do a hemi swap, the man. transmission gets replaced anyway...

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post #4 of 108 Old 01-15-2010, 04:43 PM Thread Starter
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Originally Posted by Woody99 View Post
The store doesn't have any pants, so I am going to just buy shorts instead... dumb! Do some research so you can compare apples to apples and not apples to oranges. There are other vendors who offer a manual transmission swap. When you do a hemi swap, the man. transmission gets replaced anyway...
Hey Woody, it also costs $20,000 bucks! Hence my interest in superchargers!

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post #5 of 108 Old 01-15-2010, 05:28 PM
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If you in fact have a new jeep on order,you might want to give it a try before laying down hard earned big bux on something that will blow your warranty all to hell.Just because some want "more power" does not equate to the 3.8 is gutless.....which it is not.The 3.8 does a decent job all around.Gets better once you hit around 15k miles as I heard.Unless your looking for bragging rights.......

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post #6 of 108 Old 01-15-2010, 07:43 PM
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Originally Posted by lohchief View Post
If you in fact have a new jeep on order,you might want to give it a try before laying down hard earned big bux on something that will blow your warranty all to hell.Just because some want "more power" does not equate to the 3.8 is gutless.....which it is not.The 3.8 does a decent job all around.Gets better once you hit around 15k miles as I heard.Unless your looking for bragging rights.......
x2 I have over 30k on my unlimited with 35's and the factory 4.10's. The motor is pretty stout, not winning any 1/4 miles but the longevity is there with lots of JK's over 50K+. RIPP and HESCO both have vehicles with 20+ thousand "boosted" miles, on and off road, and no real signs of increase wear. There's a lot of other factors but not to worry about having to try to keep it alive.

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post #7 of 108 Old 01-15-2010, 07:44 PM
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Its all a matter of boost. If you have a proper tune and you arent running alot of boost, you will not hurt the longevity of your engine too much. Plenty of OEM supercharged engines out there get 100,000 miles running 4-6 pounds. The JK kits run up to 8 pounds.
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post #8 of 108 Old 01-15-2010, 07:49 PM
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Quote:
Originally Posted by Duexmachina View Post
My 4 door jk rubicon is currently being built at the factory and I have been researching both hemi swaps and superchargers. Apparently, AEV is currently not offering hemi swaps for manual transmission and it also costs approximately $20,000! Yikes! yet so it looks like I will be going with a supercharger. I have been told that superchargers do put wear on the engine. Does anyone know how much wear and will I be replacing my engine prematurely because of the supercharger. Would anyone advise against it?
Hopefully RIPP will chime in as I beleive they have 60 or 70k + on their early design supercharger and have made some improvements since....but Hesco also seems to have a promising design and I have been trying to do some research on their product....also do not let the price you are getting from AEV for a hemi scare you as I have heard of shops that will do the swap with the AEV kit come in under 12k for a 5.7 and 15k for a 6.1 hemi.

you could always do what I think I am going to do supercharge until the price of the hemi engines come down and or the price of the kit then once my engine goes have some money saved up to do a hemi swap....but I also do not ever plan on getting rid of my Jeep and hope to pass it down to my son in 15 and a half years.


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post #9 of 108 Old 01-15-2010, 07:58 PM
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Burnsville Offroad does HEMI swaps for manual..

http://www.burnsvilleoffroad.com/

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post #10 of 108 Old 06-23-2010, 04:01 AM
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Originally Posted by lohchief View Post
If you in fact have a new jeep on order,you might want to give it a try before laying down hard earned big bux on something that will blow your warranty all to hell.Just because some want "more power" does not equate to the 3.8 is gutless.....which it is not.The 3.8 does a decent job all around.Gets better once you hit around 15k miles as I heard.Unless your looking for bragging rights.......
3.8 is very much GUTLESS....at least here in "Gods Country". Try going up I-70 to the Ski Resorts from Denver, you WILL find out how gutless it really is...sorry to unearth this post...
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post #11 of 108 Old 06-23-2010, 07:53 AM
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3.8 is very much GUTLESS....at least here in "Gods Country". Try going up I-70 to the Ski Resorts from Denver, you WILL find out how gutless it really is...sorry to unearth this post...
Coming from Silverthorn up towards the tunnel - I did 75 mph at 3500 rpm but thats with an Avenger Supercharger.
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post #12 of 108 Old 06-23-2010, 10:58 AM
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Coming from Silverthorn up towards the tunnel - I did 75 mph at 3500 rpm but thats with an Avenger Supercharger.
I need to follow in your foot steps...or tire tracks as it were. Going up 70 watching my speedo plummet and my RPMs rocket is such a kick in the balzac

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post #13 of 108 Old 06-23-2010, 12:12 PM
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i have the RIPP supercharger.. and i am very happy with it ... yeah would be nice to have a hemi.. with 37's and heavy beadlock wheels.. the supercharger gives me the extra boost i need.. also with the 5:13 gears makes the jk much more enjoyable to drive ... i say go with the super charger for now
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post #14 of 108 Old 06-23-2010, 03:40 PM
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Quote:
Originally Posted by Duexmachina View Post
My 4 door jk rubicon is currently being built at the factory and I have been researching both hemi swaps and superchargers. Apparently, AEV is currently not offering hemi swaps for manual transmission and it also costs approximately $20,000! Yikes! yet so it looks like I will be going with a supercharger. I have been told that superchargers do put wear on the engine. Does anyone know how much wear and will I be replacing my engine prematurely because of the supercharger. Would anyone advise against it?
Our original test mule was traded in at 60k mile of supercharged miles... there are clients who have kits running over 20-30k now... Conversely there are a few bad ones too... but with 400 kits sold we're confident the kits are solid.

One of our clients - on the other forum just got off the dyno with our header and supercharger and hit 236 rear wheel HP and 265ft/lbs of torque through 37's... thats actually Hemi power at half the price...

We have plenty of rigs in Colorado, one of our best dealers/installers is

Bullhide 4x4 (High Altitude Dyno Tuning)
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Installs through them always go smooth and make power - They are our go to guys in Colorado.

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i have the RIPP supercharger.. and i am very happy with it ... yeah would be nice to have a hemi.. with 37's and heavy beadlock wheels.. the supercharger gives me the extra boost i need.. also with the 5:13 gears makes the jk much more enjoyable to drive ... i say go with the super charger for now
We're going to be releasing a Gen2 Electronics package soon - and that's going to change things big time... We're not ready to release info on it yet - but we're getting close...

YouTube - JK RIPP Supercharged 37's AUTO 288lbs/ft Torque 2500rpm.MOV


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post #15 of 108 Old 06-23-2010, 03:56 PM
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hey RIPP
with the release of the Gen 2 electronics package... would that be something that could replace the black box and electronics in a already installed superchaged jk ? thanks
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hey RIPP
with the release of the Gen 2 electronics package... would that be something that could replace the black box and electronics in a already installed superchaged jk ? thanks
Yep... you betcha

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post #17 of 108 Old 06-23-2010, 04:46 PM
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Originally Posted by RIPPMODS View Post
Our original test mule was traded in at 60k mile of supercharged miles... there are clients who have kits running over 20-30k now... Conversely there are a few bad ones too... but with 400 kits sold we're confident the kits are solid.

One of our clients - on the other forum just got off the dyno with our header and supercharger and hit 236 rear wheel HP and 265ft/lbs of torque through 37's... thats actually Hemi power at half the price...

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post #18 of 108 Old 06-23-2010, 05:03 PM
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Originally Posted by lohchief View Post
If you in fact have a new jeep on order,you might want to give it a try before laying down hard earned big bux on something that will blow your warranty all to hell.Just because some want "more power" does not equate to the 3.8 is gutless.....which it is not.The 3.8 does a decent job all around.Gets better once you hit around 15k miles as I heard.Unless your looking for bragging rights.......
Its all in the tuning but anyways...

good advice... I bought a $20k brand new civic si in 2005 and put a turbo on it. My mistake was that I didn't have it properly tuned, one day I turned the boost up and... poof. There went a brand new engine with 7k on it. I spent 7 months making payments on a car I couldn't drive.... its sucks.

It turned out good because I swapped in a better engine which netted me 50+ hp and a 6 spd... but I learned a lesson.

The lesson learned... get some mileage out of your stock engine (at least until your warranty is up) before you blow it up with forced induction mods.


for the record...

I am very satisfied with the stock 3.8 liter. Its not geared for speed so dont expect to win any races... but it has more than adequate power to pull yourself, 3 other people, a trailer (under 2000 lbs), and all the gear you will need... anywhere you want to go. These are jeeps, not blown top fuel drag cars.

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post #19 of 108 Old 06-23-2010, 05:26 PM
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for the record...

I am very satisfied with the stock 3.8 liter. Its not geared for speed so dont expect to win any races... but it has more than adequate power to pull yourself, 3 other people, a trailer (under 2000 lbs), and all the gear you will need... anywhere you want to go. These are jeeps, not blown top fuel drag cars.
No i want my Jeep to go like a blown top fuel drag car!!! No i'm with you. Mines especially sluggish as i have 35's and 3.21 gears. But even with my current setup i have no problem getting where i need to go and doing 80 on the highway. Even get's me though some wheeling as well. but the 3.21 gears make it hard to crawl so i tend to hop up stuff alot...But with some gears and maybe someday a Ripp or Hemi swap i'm sure it would be ideal.

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post #20 of 108 Old 06-23-2010, 06:15 PM
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RIPP....Since when did your kit get a intercooler? Is it custom or new design?
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post #21 of 108 Old 06-23-2010, 06:30 PM
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As stated before, its all in amount of boost, and tune to a certain aspect. Bottom line, if you are running too much boost, your going to snap a rod or some other weak cast part. If you're going to be running a supercharger or turbo at any substantial amount of boost, you're going to need forged internals to handle the added stress. If you're running 6, 8, maybe even 10 pounds, you'd probably be ok with the appropriate tune. Just my $.02
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post #22 of 108 Old 06-24-2010, 08:01 AM
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Originally Posted by give me vtec View Post
I am very satisfied with the stock 3.8 liter. Its not geared for speed so dont expect to win any races... but it has more than adequate power to pull yourself, 3 other people, a trailer (under 2000 lbs), and all the gear you will need... anywhere you want to go. These are jeeps, not blown top fuel drag cars.
Sorry but I cant agree with that. I dont expect a race car but I dont like driving 75 mph on a flat highway and still have to have 3500 rpm to maintain that speed (stock rubi auto).

The 4 speed auto has almost the same gear ratios as the 5 speed mated to the hemi but with 140 less hp to push it. Combine that with the aerodynamics of a brick and the Jeep doesnt do well at highway speeds.

I went with an Avenger SC and will never look back. Has been the best investment by far.
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post #23 of 108 Old 06-24-2010, 08:12 AM
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Yep... you betcha

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post #24 of 108 Old 06-24-2010, 08:36 AM
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Also, the 3.8L is reasonable to come by cheap with low miles on them if you have to replace it.

Has anyone researched taking one of these 3.8L's and building it? The freaking V6 in the new Camaro and Mustang are putting out 300hp+


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post #25 of 108 Old 06-24-2010, 08:39 AM
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I need to follow in your foot steps...or tire tracks as it were. Going up 70 watching my speedo plummet and my RPMs rocket is such a kick in the balzac
If you are ever in the Springs area, let me know...
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