Is There Any Turbocharged 4.0L Out there?
CF Veteran
Joined: Sep 2007
Posts: 4,869
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both turbo'd rigs are wheeled. the owner of the xj makes a living doing it. If it was pointless he probably wouldnt have done it.
http://mrmontez2000.proboards70.com/...ay&thread=9884
http://mrmontez2000.proboards70.com/...y&thread=11197
http://mrmontez2000.proboards70.com/...ay&thread=9884
http://mrmontez2000.proboards70.com/...y&thread=11197
CF Veteran
Joined: Jan 2008
Posts: 3,671
Likes: 11
From: LI, NY
Year: 1998
Model: Cherokee
Engine: 4.0, bolt ons for days...
I realize that, at the fly wheel its closer to 650HP, im just saying whats the point of turbo'ing such a meek motor in the first place, unless the block is all built and your gonna put atleast a 40mm turbo on there, i dont even see the point of wasting the money, and the more i think about it, the less sense it makes to turbo a rock crawler, you'd be better off super charging, cus the turbo isnt going to build power till the end of each gear with a heavy load on the motor, which when your crawling, although you may put up the RPM's its just like revving it in park or neutral, your moving to slowly to put a high load on it to build boost, maybe if you were building a jeepspeed jeep, or a hill climber it would be cool to see, otherwise i just don't get it... 
Seasoned Member
Joined: Dec 2008
Posts: 434
Likes: 1
Year: 1989
Model: Cherokee
Engine: 4.0L renix
are u guys retarded? i hate to be mean but i posted the dino sheet from that guys yj build right? did any of u see that. his motors torque curve peaks just below 2500 rpm and keeps steady untill 3500. thats a pretty good range for wheeling.
just because you guys dont understand it doesnt make it a bad idea
o and the rear wheel horsepower of the cherokee is around 150 hp/ 180 tq thats pretty close to what the original op posted
just because you guys dont understand it doesnt make it a bad idea
o and the rear wheel horsepower of the cherokee is around 150 hp/ 180 tq thats pretty close to what the original op posted
Last edited by richxj89; Feb 25, 2009 at 08:00 PM.
Senior Member
Joined: Dec 2008
Posts: 990
Likes: 4
From: Washington State
Year: 1996
Model: Cherokee
Engine: 4.0L HO
I dont think I would turbo my wheeling rig though its just as good of an idea as a supercharger. The people who are saying its not going to work good obviously dont understand turbo setups and what you can do with them. I think I would stray away from both and focus on a stroker motor.
Member
Joined: Feb 2009
Posts: 178
Likes: 0
From: West Paducah, KY
Year: 1996
Model: Cherokee
Engine: 4.0
For what it's worth. On the tv shows that are building or testing modified turbo-charged vehicles, they are always saying that with the new turbo technologies out there, turbo lag is almost eliminated if properly set up.
CF Veteran
Joined: Oct 2008
Posts: 2,543
Likes: 5
From: Stafford,VA
Year: 1998
Model: Cherokee
Engine: 4.0
What is ignorant about that comment? think what you want maybe you drive around the trails fast enough to spool up a turbo...I would on the other hand take a high compression V8 with a torque cam.....How many Jeeps are on the tail with a turbo engine?? not many...most have a high compression 4.6 stroker or even a V8 Swap.
Last edited by 98 JeepJeep; Feb 28, 2009 at 01:06 PM.
Member
Joined: Feb 2009
Posts: 117
Likes: 1
Year: 1996
Model: Cherokee
Engine: 4.0 H.O. I6
What is ignorant about that comment? think what you want maybe you drive around the trails fast enough to spool up a turbo...I would on the other hand take a high compression V8 with a torque cam.....How many Jeeps are on the tail with a turbo engine?? not many...most have a high compression 4.6 stroker or even a V8 Swap.
Seasoned Member
Joined: Dec 2008
Posts: 434
Likes: 1
Year: 1989
Model: Cherokee
Engine: 4.0L renix
What is ignorant about that comment? think what you want maybe you drive around the trails fast enough to spool up a turbo...I would on the other hand take a high compression V8 with a torque cam.....How many Jeeps are on the tail with a turbo engine?? not many...most have a high compression 4.6 stroker or even a V8 Swap.
for example a N/A jeep bogs down in a mud pit. the same jeep with a properly setup turbo motor will boost before it bogs and make it further.
same goes for hill climbs
you are ignorant because you think turbos are just for speed
Last edited by richxj89; Feb 28, 2009 at 05:03 PM.
CF Veteran
Joined: Oct 2008
Posts: 2,543
Likes: 5
From: Stafford,VA
Year: 1998
Model: Cherokee
Engine: 4.0
a correctly setup turbo motor will be much more reliable than a high compression stroker or v8. and you dont spool up a turbo by going fast the turbo spools up and adds boost when a load is put on the motor.
for example a N/A jeep bogs down in a mud pit. the same jeep with a properly setup turbo motor will boost before it bogs and make it further.
same goes for hill climbs
you are ignorant because you think turbos are just for speed
for example a N/A jeep bogs down in a mud pit. the same jeep with a properly setup turbo motor will boost before it bogs and make it further.
same goes for hill climbs
you are ignorant because you think turbos are just for speed
Last edited by 98 JeepJeep; Feb 28, 2009 at 07:33 PM.
Junior Member
Joined: Jan 2009
Posts: 81
Likes: 0
Model: Cherokee
your missing the point........for a rock crawler or trail rig a turbo isnt practical.....Im not talking about a WOT mudd bog truck. I would still take a stroker for a trail rig over a turbo motor. It would be annoying to get and keep the turbo spooled to make the power.Your argueing a dead point. quit reading and start opening your eyes and seeing what is out there most are 4.6 strokers motors for a reason. I assure you of this...........Turbos/superchargers just arnt practical for a low RPM trail rig period specially with steep gears.......
But since there is no fact or rule stating that a turbo 4.0 isn't practical, then you don't have a valid arguement, and vice versa.