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Unread 09-14-2011, 06:37 PM   #1
tansahara99
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Can I turbo charge my Jeep??

I have a 1999 sahara straight 6 wrangler with 167000 miles on it. I am interested in putting a 3t turbo in it. I know theres many jeeps out there that have similiar turbos on them but all I could find was ones with 2.5L 4 cylinders and nothing about a 4.0L straight 6. Is it possible??

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Unread 09-14-2011, 09:46 PM   #2
JeepinJarhead03
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wouldn't do it without freshining up the rings and what not

it's been done - successfully might i add
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Unread 09-15-2011, 07:30 PM   #3
TURBevO8
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I'll sell you my stock Mitsu 16G cheap! And shipping to Clearfield would be only a couple bucks.

Anything can be done. Will just need a manifold, boost controller, intercooler (maybe), more fuel, and a way to regulate the AFRs.
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Unread 10-30-2011, 09:17 AM   #4
alfaitalia
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Mines turbocharged.......... but then all 2.7 CRD Grand Cherokees are!! Heh heh!
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Unread 11-01-2011, 11:12 PM   #5
XJ4oh
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What's your reason for wanting to do so, and how much would you be willing to spend?

A boosted 4.0 would be a torque monster, but since there's very little in the way of demand for turbo kits for that application, it won't be cheap.

Don't take it the wrong way, but if you're asking if it can be done, I'm assuming you don't plan on doing much of the work. Labor cost would be silly.

You'd probably be better off looking into a GM LS-engine swap, or even an older Vortech V8, Ford 302, AMC 360, etc.
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Unread 11-04-2011, 06:25 PM   #6
EfiniMotorsport
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From what I've seen it's not that hard or expensive. I was looking at turboing my 95 Grand. I've got a few pics I can send you if you want. From what I've been able to find out all you really need to do is have a pipe bent up that goes from the exhaust manifold around the front of the motor and mount the turbo on the opposite side. then just connect the exhaust side of the turbo back into the exhaust
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Unread 11-05-2011, 07:01 AM   #7
alfaitalia
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Quote:
Originally Posted by EfiniMotorsport View Post
From what I've seen it's not that hard or expensive. I was looking at turboing my 95 Grand. I've got a few pics I can send you if you want. From what I've been able to find out all you really need to do is have a pipe bent up that goes from the exhaust manifold around the front of the motor and mount the turbo on the opposite side. then just connect the exhaust side of the turbo back into the exhaust
Right....if you are not joking (and I hope you are), if I was you you, with your level of mechanical knowledge, I would just stick to putting fuel in it!!!
"Just have a pipe bent!!!" Physically fitting the turbo is a bit more complex than that. Even forgetting the massive thermal loads on a turbo and its piping (most turbo manifold are cast or titanium for that reason) what about an high pressure oil supply for the turbo? What about extra fuelling you will need (remap or piggy back ECU)?? What about dealing with the extra heat generated buy your engine?? What about lowering the compression ratio (usually needed to allow the use of any meaningful boost)?? What about regearing to deal with the extra power?? What about upgrading the piston/rods to cope with more power than they were ever designed for?? Will the brakes be up to stopping it once on boost!!!??Will you tranny, prop shafts, axles cope?? Etc etc etc. Its a massive (and very expensive if done right) job and one best left to the experts if you dont want to end up with an unreliable, peaking, thirsty motor.

Just my 2 pence worth!!
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Unread 11-06-2011, 07:28 AM   #8
EfiniMotorsport
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That would only get the turbo mounted and in a good location. I know there is a lot more to it tan just that but the other posts I've seen mostly revolve around where/how to mount the turbo. I have built my fair share of turbo cars and am currently building a 240 with a turbo skyline motor. I know there is much more than just getting it mounted. I have not personally turbo'ed a jeep but I know you can run about 5-6psi safely on stock internals with the correct fuel mods. Very few manifolds are titanium unless it's a money is no object build. For the most part they are stainless steel. There is no need to regear as you're not adding a ton of power and then it isn't the gear ratio that is the issue it's the strength of the components. With the low amount of boost a healthy drive train will be fine and as long as you're not going 100+ the brakes should be fine too.Check out 505 Performance. They offer turbo kits for jeeps and have a lot of info on it.
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Unread 11-06-2011, 07:50 AM   #9
Bojeepus
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505 perfomance are the folks to talk to about turbos and 4.0/4.7's
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Unread 11-06-2011, 07:31 PM   #10
TurboTPI
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I'm going to be doing a turbo setup on my 95 ZJ 4.0. I'm gonna use a stock Buick grand national turbo. It will work well with a 4.0 and you can find them pretty cheap. 5-6lbs of boost will be fine on a stock motor with proper tuning.
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Unread 11-08-2011, 08:07 PM   #11
TurboTPI
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^ wtf?
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Unread 11-25-2011, 09:12 PM   #12
kbman
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Check out jp magazine they have an article about it
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Unread 11-30-2011, 08:31 PM   #13
placoo12
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Quote:
Right....if you are not joking (and I hope you are), if I was you you, with your level of mechanical knowledge, I would just stick to putting fuel in it!!!
"Just have a pipe bent!!!" Physically fitting the turbo is a bit more complex than that. Even forgetting the massive thermal loads on a turbo and its piping (most turbo manifold are cast or titanium for that reason) what about an high pressure oil supply for the turbo? What about extra fuelling you will need (remap or piggy back ECU)?? What about dealing with the extra heat generated buy your engine?? What about lowering the compression ratio (usually needed to allow the use of any meaningful boost)?? What about regearing to deal with the extra power?? What about upgrading the piston/rods to cope with more power than they were ever designed for?? Will the brakes be up to stopping it once on boost!!!??Will you tranny, prop shafts, axles cope?? Etc etc etc. Its a massive (and very expensive if done right) job and one best left to the experts if you dont want to end up with an unreliable, peaking, thirsty motor.

Just my 2 pence worth!!

Why would you need to worry about any re gearing or more heat from the motor if one would be only putting a couple pounds of boost in his jeep. Of course you would worry about all that if your running 25 pounds through the jeep but i have not read one build that says more than ten pounds through an I6 motor. EfiniMotorsport is trying to give the guy a couple starting out tips not laying it out step by step either so just calm down
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Unread 12-11-2011, 09:23 PM   #14
chadlanc
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go for it, why not..
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Unread 12-11-2011, 09:34 PM   #15
joshthib
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boostwerks makes a kit for the xj so i would contact them for your tj if you seriously want to get some help with the manifold, engine management etc
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