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Old 06-12-2017, 12:55 PM   #33
DieselSJ
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Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
Re: Who has done a 4BT swap?

Quote:
Originally Posted by Jrgunn5150 View Post
60-65 mph speeds were a major factor lol
The double overdrive doesn't hurt either. What RPM are you turning?

I'd absolutely do a diesel swap again and I'm trying to decide what I want to do in the R30. I want to shy away from a 6bt and do something different (like I did with the 6.5 into my Jeep) because there are so many Cummins swaps, but it is hard to beat the power and reliability of an old mechanical injected Cummins.

My Jeep got 12-13 mpg stock. I now get 21-22 through daily commute and I can pull 24 on the highway at 75mph, plus I have tons more power.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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