1998 Jeep Grand Cherokee turbo diesel - Page 2 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!
Cummins Turbo Diesel Repair and performance for the Dodge Cummins Turbo Diesels.

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post #16 of 26 Old 01-05-2013, 09:53 AM
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Re: 1998 Jeep Grand Cherokee turbo diesel

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Originally Posted by Karsten View Post
Bear in mind that any 6bt would rip a stock Dana35 or even the weak alloy Dana44 in bits and pieces right above idle.
With only 150hp and 400ftlbs to the wheels? Ehh no to think of it they have problems with anything over 33s anyway... Ford 9 in the rear and a 60 in the front should take care of that...
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post #17 of 26 Old 01-05-2013, 09:55 AM
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Re: 1998 Jeep Grand Cherokee turbo diesel

Also found out that the 4.0 weighs in at 500lbs wet
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post #18 of 26 Old 01-05-2013, 10:09 AM
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Re: 1998 Jeep Grand Cherokee turbo diesel

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With only 150hp and 400ftlbs to the wheels? Ehh no to think of it they have problems with anything over 33s anyway... Ford 9 in the rear and a 60 in the front should take care of that...
A stock 360 V8 in the Granny is able to rip the drivetrain apart in less then 10 minutes, my neighbour did just this in his 5.9 GC
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post #19 of 26 Old 01-06-2013, 09:38 AM
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Re: 1998 Jeep Grand Cherokee turbo diesel

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A stock 360 V8 in the Granny is able to rip the drivetrain apart in less then 10 minutes, my neighbour did just this in his 5.9 GC
Then you would want to replace that stuff any ways
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post #20 of 26 Old 01-06-2013, 01:36 PM
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Re: 1998 Jeep Grand Cherokee turbo diesel

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Originally Posted by Karsten View Post
A stock 360 V8 in the Granny is able to rip the drivetrain apart in less then 10 minutes, my neighbour did just this in his 5.9 GC
Then it was damaged or not taken care of. My dad had a 360 with mods and it was beat on daily without trouble. They even lived with the SC kit from Vortec.

They are a A500 trans rig though so trans mods are needed, I'd also get a better converter with a stock 5.9. Making the Diff front and rear stronger isn't that tough but adding helical posi up front is a must. My dads had posi out back stock, if anyone building one doesn't have it back there they need it.

There are people out there thinking they can use a cummins in a Toyota LMAO I think the jeep would be fine with a 4BT in it and mods with the right trans work added. A 6BT would have to be more stock, the problem is mileage sucks stock compared to turned up. So I'd rather have a turned up lighter 4BT than a stock 6BT and the 400 lbs lol.

A 4BT version of my truck in a GC should make about 200 HP/ 450 torque and get near 40 MPG. I bet slower than a 5.9 limited but raging mileage. My dads 5.9 limited got 23 highway and 18 in town.

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post #21 of 26 Old 01-08-2013, 09:53 AM
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Re: 1998 Jeep Grand Cherokee turbo diesel

I think k you just pulled numbers from thin air there but to each there own I guess.
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post #22 of 26 Old 01-11-2013, 08:27 PM
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Re: 1998 Jeep Grand Cherokee turbo diesel

I'm having a hard time finding a decent 360 Gr.C locally with under 200k on it . My good Jeep buddy has one with 370kms with stock everything. It was maintained from day 1. The original owner was a Jeep guy. It was a salesman's car for the first 10yrs, now it's his winter beater.
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post #23 of 26 Old 01-16-2013, 02:06 AM Thread Starter
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Re: 1998 Jeep Grand Cherokee turbo diesel

Thank you all for providing your input. Time to research all of the info that's been posted.....
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post #24 of 26 Old 01-23-2013, 01:00 PM
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Re: 1998 Jeep Grand Cherokee turbo diesel

im in the process of doing the 4bt swap on my ramcharger . think ur better with the isuzu diesel but have u considered a vw diesel much lighter reasonable hp great fuel mileage and ur axles wont get destroyed . a litl tricky with the trans setup though . something 2 consider . BTW mopar 904 727 518 will bolt 2 bell housing and can use respective torque converters with the 4bt . google world products they can help with some direction ask 4 Ken . good luck with .
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post #25 of 26 Old 03-06-2013, 09:13 PM
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Re: 1998 Jeep Grand Cherokee turbo diesel

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Originally Posted by Sleepycummins View Post
I think k you just pulled numbers from thin air there but to each there own I guess.
my friend got a 4BT and there not that great on mileage in a heavy rig. You have to push them pretty hard vs a 6BT. So far it responds pretty well to mods like the 6BT but the mileage isn't very good. Only got 16 MPG in the bread truck

So in a light rig they may hit 40, about 12 past my 6BT. But not in a heavy truck where they struggle.
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post #26 of 26 Old 03-27-2013, 09:27 PM
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Re: 1998 Jeep Grand Cherokee turbo diesel

Im surprised noone mentioned the OM617 mercedes diesel. Its the cheapest to get ahold of of any of the options, and it has the advantage of pre-existing adapter setups to get it to bolt to an ax-15, and using an ax-15 means you can use pre-existing crossmember, shifter, pedal setup, driveshaft, etc if you were to locate an ax15 GC.
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