I need some serious help to anyone who can offer some answers. I have a 99 TJ with the 2.5L engine. Its grossly under-powered, especially since the previous owner put 33" tires on it and never re-geared it. So, I am looking for an inline V6 motor. I can get a good rebuild off Jasper Engines but they dont supply the computers. Can anyone tell me if the current computer for the 2.5L can be programmed for the 4.0L?
I would be interested in knowing if you ever come across one.
If you have the AX5 manually tranny, I would just spend the $1200 to get the axles regeared to 4.88 ratio and leave the engine alone. But if you insist on a conversion, they are not simple and here is a good place to start getting some information and considerations.
I would if I didnt drive it so much. But I am also wanting better gas mileage and the V6 will give me that since the 2.5L uses everything it has to get that baby moving. I will put the Dana 44 on it at a later time. I just need an inline V6 with the computer or ECU codes for it in the mean time
The "V" is how the cylinders sit in the block. In a V shape. V6. Inline 6 the "I" is how the cylinders sit in the block. They sit inline (I) of each other. I6, inline 6. So either you have a V6 OR an inline 6 (I6). Not a inline V6. which one is it?
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.
Put a 2jzgte in it .... You can get the motor for @ 2500.00 complete comes twin turbo'd ... need a mount kit and trans adapter but will make easy 400 whp completely stock. Might be a little more then you want to bite off but that motor kicks ass ... Stock internals hold 800 whp.