Topic: will i be banned?!

[stan98tj]

but you're supporting oil companies with diesel also

of course you're still supporting them with diesel, but (in this country at least) they make most of their money from gasoline. if they had the choice they would rather you spend the cash on gasoline-cause you'll run through it quicker, over diesel.

[sharpxmen]

of course you're still supporting them with diesel, but (in this country at least) they make most of their money from gasoline. if they had the choice they would rather you spend the cash on gasoline-cause you'll run through it quicker, over diesel.

yes and no, costs way less to manufacture diesel fuel, my point is they'll win (make money) either way. If there would be more demand for diesel the price will increase, so in the end won't matter anyway.

[Jeffy]

Here in PA diesels are exempt from emissions testing (last I heard).  Of course you might run into some issues because a diesel was not a factory option.

They are exempt in CA as well.  Actually, that's not 100% true.  anything before 2003 is exempt.  You still need to get the DMV papers changed from Gas to Diesel and they may ask to see it.  Sometimes they don't bother.  It's up to the officer.  If the officer isn't satisfied they may kick it down to the CA DOT for a ruling.  That's when things can get sticky.  You can also run into the same problems if you happen to move.  One state doesn't have to agree to transfer the registration of another state.

[aka-justin]

Depends on how the law is written. In Ca the replacement motor must be equal to or newer than the one being taken out. ...

It also (like Jeffy mentioned) has to be the same class of vehicle, newer or not.  Light-trucks can only have Light-trucks motors installed, unless your going to be OHV only registration, then the rules are more lacks and then your towing your awesome toy to only OHV area's and private property.

You also have to have the original mating transmission.

[Jeffy]

It also (like Jeffy mentioned) has to be the same class of vehicle, newer or not.  Light-trucks can only have Light-trucks motors installed, unless your going to be OHV only registration, then the rules are more lacks and then your towing your awesome toy to only OHV area's and private property.

You also have to have the original mating transmission.

The laws here state that you just need the PCM for the engine/transmission.

[stan98tj]

so in the end, in order to do this to a vehicle that you will daily drive, the hassle (aside from the labor) may not make this worth it.

[Jeffy]

so in the end, in order to do this to a vehicle that you will daily drive, the hassle (aside from the labor) may not make this worth it.

Getting a 4BT under the hood isn't not a simple task even ignoring the laws.  It's a heavy beast.  If you're just driving on the street or mud bogging it then it's a bit simpler.  For a crawler, you have to consider the amount of weight you'll be adding, not only the engine but everything else to strength the vehicle.  You'd want a custom suspension for sure.  You won't want to be using it in a light-weight buggy.  You're looking at big axles like D60's or 14 bolts as well.

It would be interesting to see someone use a VW 1.9T in a light weight Jeep.  Even the Merc 280D engine would be a cool swap.

[stan98tj]

Getting a 4BT under the hood isn't not a simple task even ignoring the laws.  It's a heavy beast.  If you're just driving on the street or mud bogging it then it's a bit simpler.  For a crawler, you have to consider the amount of weight you'll be adding, not only the engine but everything else to strength the vehicle.  You'd want a custom suspension for sure.  You won't want to be using it in a light-weight buggy.  You're looking at big axles like D60's or 14 bolts as well.

It would be interesting to see someone use a VW 1.9T in a light weight Jeep.  Even the Merc 280D engine would be a cool swap.

wouldnt the torque help ya out with the crawling? suspension would def have to change, my rough country kit wouldnt hold up to it. Im thinking one would need something tailor suited for it..possibly going the old man emu option and calling em to provide the necessary info-weight of the engine, terrain most likely traveled etc

[Jeffy]

wouldnt the torque help ya out with the crawling? suspension would def have to change, my rough country kit wouldnt hold up to it. Im thinking one would need something tailor suited for it..possibly going the old man emu option and calling em to provide the necessary info-weight of the engine, terrain most likely traveled etc

The 4BT is around 120HP and 320lbs.  With some tweaking you can make 400lbs.  That's a hell of a lot of torque.  The problem with the engine is the weight which is around 858lbs.  An All Aluminum V8 LS2 is half that.  A Gen 4 LS2 will make 400HP and 400Lbs-ft to boot.  I would expect the gas mileage to be similar, in the 20's as long as you're not romping on the throttle.

[jfrabat]

If I ever put a diesel in my Jeep, it's not gonna be a cummings.  Most likely I'd look for a totaled Toyota HiLux or Fortuner and take the 3.0L intercooled TD off it and use that one.  It's got plenty of torque, and the torque stays even from 1,500 RPM to about 4,500...  And it's MUCH lighter than the cummings.

[stan98tj]

.  I would expect the gas mileage to be similar, in the 20's as long as you're not romping on the throttle.

i've heard of people getting around 35mpg with the 4bt. then again they could have been blowing smoke. seems to be a common theory though because ive read it people's responses to videos featuring jeeps with the cummins setup.

[aka-justin]

Found the California Guidlines
http://www.autorepair.ca.gov/80_BARResources/07_AutoRepair/Engine_Change_Guidelines.html

Looks like my local BAR referee lied to me about the tranmission crap.

[Jeffy]

Found the California Guidlines
http://www.autorepair.ca.gov/80_BARResources/07_AutoRepair/Engine_Change_Guidelines.html

Looks like my local BAR referee lied to me about the tranmission crap.

You do not need the original transmission BUT if you change it you need to make sure the PCM is for that transmission type.  It's just easier to swap the engine and mated transmission together.  You will be supplying them with a VIN so they can check.

[jfrabat]

i've heard of people getting around 35mpg with the 4bt. then again they could have been blowing smoke. seems to be a common theory though because ive read it people's responses to videos featuring jeeps with the cummins setup.

I only get about 21 mpg from my Toyota Fortuner Intercooled Turbo Diesel...

[Jeffy]

I only get about 21 mpg from my Toyota Fortuner Intercooled Turbo Diesel...

35 MPG in a Jeep is really being optimistic.  They return more like 20-25MPG.  If you put one into a more aerodynamic body then you could probably bump it up to 35MPG.

Keep in mind the 2.8L CRD in the Liberty was making low to mid-20's.