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Topic Review (Newest First)
06-18-2012 07:26 PM
Green LJRub I think the 4.0 needs some more power. It makes me nervous to pull out into busy traffic, because it so slow! If the turbo was set up right it would be perfect. With a turbo the 4.0 wouldn't fall on its face after 2500rpms. I drove a Turbo Subaru Forester before the jeep, so I am use to having a good amount of power.
I have a 05 LJ Rubicon with a 6spd. I seriously thinking about doing a 5.3 LS swap!
06-18-2012 06:53 PM
UnlimitedLJ04
Quote:
Originally Posted by coolbreeze View Post
A diesel without a turbo is really close to worthless.
not true. They do great in workhorse platforms...tractors, generators, welders, etc.
06-18-2012 06:50 PM
coolbreeze A diesel without a turbo is really close to worthless. Does the OP have a 4.0? They run pretty well stock. Horsepower is relative to how deep your wallet is and there is always a tradeoff somewhere.
06-18-2012 03:51 PM
KCBrooks9
Quote:
Originally Posted by yellowbeast View Post
when a turbo is installed CORRECTLY it does virtually no harm..im currently installing one on my 06 2.4l just to deal with the lack of power on the interstate. and better fuel economy. people are going to tell you alot of different things but ive seen turbos on wranglers succeed and fail..im shooting for the succeed obviously.. with that said you will hear of people saying they did or heard of someone turboing a jeep or other suv and they blew the motor exct..if you force induct any engine and do not correctly map the fuel or retard the engine..install larger injectors..and use a 2 bar maf..than yes you will absolutely destroy the engine..we all know this. on my thread i have on here i am showing the average jeeper with average mechanical know how what you need to do to ensure a upgrade such as this will succeed. by the way im only in 800 bucks on EVERYTHING ive purchased for the build. should you just buy a kit you will pay out of your ass for it..and it still wont inclued some of the critical pieces such as a split second PSC1-1-002 that will be needed, a wideband A/F ratio guage setup, and typically leaves alot of guess work for the installer..and honestly the usually dont even include instructions as they " recommend a professional install the kit" for me im a weekend warrior with the jeep..i do all my work myself..if theres something im not sure about i come on here and ask the Tj community and typically get the correct answer i am looking for. as another guy posted above you first need to see what exactly you want the power for..interstate..rock crawling..trails exct. then do your homework and go from there. if you have questions reguarding the turbo setup ill do my best to help..as there is another expert in this area names SHERPA on here who is typically willing to help. good luck i cant wait to see what you decide to do from here.
AGREED! When installed correctly, a turbo on a Jeep can absolutely work. Takes patience, time, MONEY, and lots of research!
05-31-2012 10:09 PM
Walkingstick
Quote:
Originally Posted by EMTJEEP

What about all diesels that come stock with turbos? They come from the factory with turbos.

Plus he would be putting a turbo in a Jeep not a truck.
Diesel engines like those in Deuces require Turbochargers just for it to combust the damn fuel correctly.
When the turbo goes... It stalls... All... The time.
05-31-2012 03:48 PM
MPjeep Small block chevy is a good option, I have a friend that did that swap, thing runs great! Unfortunatly now he only gets to drive it on wheelin trips and has to be trailered wherever he goes because he can't get tags for it. He failed to check his local DEQ requirements before doing the swap. If you live outside Emissions it is a great choice.
05-31-2012 03:05 PM
KBR97 Small block chevy. I could probably build one for cheaper than those turbos or the stroker kits. If I'm pulling that 4.0 out, its not going back in.
05-31-2012 03:04 PM
IslandTJ
Quote:
Originally Posted by IndyJeepMan View Post
Personally id just regear. Thats all you neep OP most likely.
x2
05-31-2012 02:50 PM
MPjeep Figured I would throw in my opinion on this one since I have been playing around with this the past year. The owner of a local performance company came by while I was visiting a friend and we had the hood up, he said looks good, but it would look a lot better with a supercharger on it. I jokingly said " lets do it ". To make a long story short after months of design work and trial and error, supercharger was in and ready for tuning : This is where the hard part comes in. We tried serveral different fuel managment systems and several different tuners. I found out it is very easy to make Good HP numbers on the dyno, but it is another to have good driveability and not have a check engine light on. Another problem is that I mostly wheel in the sand and do rock crawling trails, I wanted my power to be right off idle. Well we finaly found the right blower and crank pulley combo to spin up the blower fast, and the right fuel managment and tuner to make it drive like factory, untill you get on it. All i'm saying is that before you go trying to do this, do your research. Here is a link to my Jeep making a dyno pull when I was finally happy with the tune. On The Dyno: Supercharged Jeep Wrangler - Portland Speed Industries The company that helped me is Mangnum powers, He is currently having all the cnc parts cast and will probably be selling parts/kits soon.
04-29-2012 06:26 PM
IndyJeepMan
Quote:
Originally Posted by BurlySoldier
Good god. Seriously. You are here in a Jeep forum Internet argument of turbo vs displacement and it's application in a Jeep and you show up with a piece of crap rotary engine? Was that serious or did I miss the joke?
The wankel engine is a engineering masterpiece.

Such a new way for the combustion engine to work, its a shame no one put more time and R&D into the motors. Id rotor my TJ.
04-29-2012 12:01 PM
WaterDR There is no replacement for displacement accept valves, compression, dual cams, and power adders.

Let's not forget that back in the 60's big blocks with massive displacement were turning out tiny amounts of power on a hp/cubic inch basis.

The Japanese just about did the big three under in the late 70s and 80s with small engines, lots if valves, twin balanced shafts, and compression.

BMW is even putting a 4 banger in their coveted 3 series.

Will we see Jeep launch a 4 banger turbo wrangler? Maybe not, but at 7 bucks a gallon, that arrangement has a lot of appeal and who knows what might be in the future.
04-29-2012 09:33 AM
BurlySoldier Good god. Seriously. You are here in a Jeep forum Internet argument of turbo vs displacement and it's application in a Jeep and you show up with a piece of crap rotary engine? Was that serious or did I miss the joke?
04-29-2012 09:26 AM
IndyJeepMan
Quote:
Originally Posted by Celtic

If you are ok, I am ok.
Someones gotta be that guy right? Lol. I was watching that video and was like, hm. Thatll work perfect!
04-29-2012 09:23 AM
Celtic
Quote:
Originally Posted by IndyJeepMan View Post
All in fun lol, just showing the point that little tiny rotarys can make nasty amounts of power. I appreciate the caveman, but weve all gotten better from that time! Lol.
If you are ok, I am ok.
04-29-2012 09:16 AM
IndyJeepMan
Quote:
Originally Posted by Celtic

Which costs less to manufacture?

Which costs less to repair?

Which has a longer expected service life?

Which requires less regular maintenance?

And, since this is obviously being wasted on a hater, I would mention that IJM would not even be here if it were not for cavemen.
All in fun lol, just showing the point that little tiny rotarys can make nasty amounts of power. I appreciate the caveman, but weve all gotten better from that time! Lol.
04-29-2012 07:39 AM
Celtic
Quote:
Originally Posted by IndyJeepMan View Post
Tell that to this 3 rotor turbo Rotary..

You could pick that up and throw it in the back of your truck. Cubic inches are for cavemen

20B Triple Rotor RX7 with a MASSIVE Turbo that Runs a Low 7ET almost a 6 Second Pass - YouTube
Which costs less to manufacture?

Which costs less to repair?

Which has a longer expected service life?

Which requires less regular maintenance?

And, since this is obviously being wasted on a hater, I would mention that IJM would not even be here if it were not for cavemen.
04-28-2012 10:33 PM
IndyJeepMan Tell that to this 3 rotor turbo Rotary..

You could pick that up and throw it in the back of your truck. Cubic inches are for cavemen

http://www.youtube.com/watch?v=pQcMl...e_gdata_player
04-28-2012 05:25 PM
Celtic
Quote:
Originally Posted by BurlySoldier View Post
Well the key word is diesel. Not gasoline. And whats the redline on most diesel engines at? And when you go and put a 230 HP turbo onto a 10-15 year old 4 cylinder with excess of 100,000 miles on it (and it costs you 4 grand to do it) how long until your clutch goes? And your rears? And your engine? And when that goes what do you do? Replace with stock?
I stand by what I said. If I had the money (and only in a Jeep originally equipped with a 4.0) I'd do the stroker long block. Period.
BurlySoldier is right. Truer words were never spoken. There is no substitute for cubic inches.
04-28-2012 05:05 PM
IndyJeepMan
Quote:
Originally Posted by BurlySoldier
Well the key word is diesel. Not gasoline. And whats the redline on most diesel engines at? And when you go and put a 230 HP turbo onto a 10-15 year old 4 cylinder with excess of 100,000 miles on it (and it costs you 4 grand to do it) how long until your clutch goes? And your rears? And your engine? And when that goes what do you do? Replace with stock?
I stand by what I said. If I had the money (and only in a Jeep originally equipped with a 4.0) I'd do the stroker long block. Period.
Youd need to replace all of those things with a stroker too, the horsepower with the turbo will be similar with the stroker so that argument isnt valid. A turbo, supercharger would work great but itd be just as expensive or more. Personally id just regear. Thats all you neep OP most likely.
04-28-2012 04:47 PM
BurlySoldier Hahaha
As for those calling your stang a ricer because it had a nos system they need their heads examined and clearly know jackshit about hotrodding and hotrod history.
04-28-2012 04:45 PM
WaterDR There is no reason to put a turbo on a truck because zillions already come that way.
04-28-2012 04:40 PM
BurlySoldier
Quote:
Originally Posted by WaterDR
Can we all agree that there are zillions of turbos on trucks?

I had a mustang with nitrous a few years back, and some dumb ass kids told me nitrous was for ricers.
Can't we all agree that putting a turbo on a truck is not the norm and has not been done a zillion times ( save for diesels).
Someone had mentioned two years of a toyota truck with a turbo many years ago. Must have been a huge success. Nothing I've read in this thread or on the net makes me think it would be an easier OR better alternative to a stroker long block or a stroker rebuild kit (for a 4.0). As for modding out a Jeep 4 banger... Go for it. I'd love to see you or anyone succeed with that (realistically) but I just do not think it is worth it.
Locally on Craigslist is a low mileage 4.0 ($200)and also a 5 speed manual ($200) out of a 4.0. Both total up cheaper than a turbo and you might be able to do the swap yourself. However you are still left with a weak set of axles and lets not forget the transfer.
This whole idea of doing up a 4 cylinder to outperform a 6 or even converting to a 6 sounds like too much work to me.
I'd sell what you got and buy a better platform to build from.
Just my .02 and not trying to offend
04-28-2012 03:38 PM
fourty4magjr
Quote:
Originally Posted by EMTJEEP View Post
Some of us can't do stroker motors due to state laws. so we have to look for different alternatives.
Oh yes I forgot about this I'm one of them damnit all!
04-28-2012 01:38 PM
yellowbeast when a turbo is installed CORRECTLY it does virtually no harm..im currently installing one on my 06 2.4l just to deal with the lack of power on the interstate. and better fuel economy. people are going to tell you alot of different things but ive seen turbos on wranglers succeed and fail..im shooting for the succeed obviously.. with that said you will hear of people saying they did or heard of someone turboing a jeep or other suv and they blew the motor exct..if you force induct any engine and do not correctly map the fuel or retard the engine..install larger injectors..and use a 2 bar maf..than yes you will absolutely destroy the engine..we all know this. on my thread i have on here i am showing the average jeeper with average mechanical know how what you need to do to ensure a upgrade such as this will succeed. by the way im only in 800 bucks on EVERYTHING ive purchased for the build. should you just buy a kit you will pay out of your ass for it..and it still wont inclued some of the critical pieces such as a split second PSC1-1-002 that will be needed, a wideband A/F ratio guage setup, and typically leaves alot of guess work for the installer..and honestly the usually dont even include instructions as they " recommend a professional install the kit" for me im a weekend warrior with the jeep..i do all my work myself..if theres something im not sure about i come on here and ask the Tj community and typically get the correct answer i am looking for. as another guy posted above you first need to see what exactly you want the power for..interstate..rock crawling..trails exct. then do your homework and go from there. if you have questions reguarding the turbo setup ill do my best to help..as there is another expert in this area names SHERPA on here who is typically willing to help. good luck i cant wait to see what you decide to do from here.
04-28-2012 11:44 AM
IndyJeepMan
Quote:
Originally Posted by dml325
How much extra power are you looking for? I added an Airaid high performance air intake to mine and it adds about 12-15 HP. They are $339 online and you can install yourself. The harder part is that you won't get the full benefit unless you have the exhaust to move out all of the extra air flowing through the system...more air flowing through the system = more horsepower. Just generally makes your Jeep have a little more pep.
You are the perfect person that airraid was thinking of when they make their exaggerated claims lol.
04-28-2012 11:37 AM
WaterDR Don't waste your money on an airaid. Unless someone can show me the 12 hp in a dyno before and after that they paid for, I am not convinced.

Besides, even 15 hp is not the kind of thing that gives you sudden passing power.
04-28-2012 11:27 AM
EMTJEEP
Quote:
Originally Posted by fourty4magjr View Post
Yeah and bet that kid called it NOS too man stupid kids!

Back to the turbo though it really isn't worth it when you can get a stroker. It's not worth the damage it causes to the motor especially one that's not made for it.

Some of us can't do stroker motors due to state laws. so we have to look for different alternatives.
04-28-2012 12:34 AM
TJDave Someone already asked the question, but it never was answered by the OP.

Why are you lacking power? Do you have larger than stock tires? A re-gear will get your performance back.

If you need more power for some reason other than trail riding, Stroker, LS1, or Hemi swap.
04-28-2012 12:01 AM
fourty4magjr
Quote:
Originally Posted by WaterDR View Post
Can we all agree that there are zillions of turbos on trucks?

I had a mustang with nitrous a few years back, and some dumb ass kids told me nitrous was for ricers.
Yeah and bet that kid called it NOS too man stupid kids!

Back to the turbo though it really isn't worth it when you can get a stroker. It's not worth the damage it causes to the motor especially one that's not made for it.
04-27-2012 11:50 PM
dml325 How much extra power are you looking for? I added an Airaid high performance air intake to mine and it adds about 12-15 HP. They are $339 online and you can install yourself. The harder part is that you won't get the full benefit unless you have the exhaust to move out all of the extra air flowing through the system...more air flowing through the system = more horsepower. Just generally makes your Jeep have a little more pep.
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