bigalpha
Moderator
- Location
- Tucson, AZ
Should get great gas milage!
IIRC, it's not that great.
Should get great gas milage!
My 2.5 turbo diesel gets 27-28MPG.
That's not a whole lot better than what I get from my 4.6 stroker if I drive it with some restraint.
That's not a whole lot better than what I get from my 4.6 stroker if I drive it with some restraint.
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1992 XJ 4.6L "Poor Man's" Stroker
202rwhp @ 4700rpm (248bhp crank)
258rwtq @ 3400rpm (311lbft crank)
1/4 mile: 14.63 @ 94.4, 3450lb kerb
AX15, NP231, D30/D35
Jeep Performance, Jeep Tech, Junker to Stroker
[offtopic]
If only you could imagine how much I want a 4.6 stroker. But local taxes are around $1.5k / year for a 4.0.
[/offtopic]
well today i bought an mj and a puegeot 2.3l diesel motor...all for around $500.
let the fun begin
Buy a second 2.3L motor and fuse the two of them together to make a 4.6L V8 diesel. How cool would that be?![]()
well this looks like its a go...picking up the engine and mj on tuesday. the gas engines that they put in the 504's were able to get 20-23 mpg's...however i've heard mixed reports on the diesel. some have claimed 35-40 mpg's with the 2.3l diesel with a peugeot ba 10/5 tranny. the previous owner of the motor who seems very down to earth and has built/transplanted/rebuilt many diesel cars claimed the best he ever got was 42 in a peugeot 504. the curb weight of a peugeot 504 is 6000-6400lbs...so its a pig compared to a comanche. however, tire diameter is clearly different...so gears and tire size will play a big factor. regardless, this will be a neat project and i'll be sure to post some pics once i start digging into it
A 4.6 stroker looks the same as a 4.0 from the outside so the authorities wouldn't know the difference if you increased the displacement as long as you don't tell them.![]()
Don't be stupid. :nono:
They're still 4.0 taxes, in 2 years I'm paying the full-price of the car again, in taxes. That's why I drive a 2.5 diesel![]()
Not UK, I live in Romania, more precisely Transylvania
Anyway, some info on the Peugeot 504, to ease the "comparison". Looks like the 4x4 station wagon version is 3362lbs unloaded. And compared to the regular station wagon it has a frame, rear axle and transfer case added, a good couple of hundred lbs more than a regular station wagon.
http://www.aussiefrogs.com/articles/504_dangel.htm
So I still hold my guess of similar mileage to what I get. Possibly even less if the engine is less powerful than the 2.5 TD
I do have 3.73 gears stock, which for a diesel equipped XJ on stock tires is a good compromise between off and on-road behaviour. 3.55 would feel a bit better suited for lots of highway miles.
The 2.1 TD XJ's had 4.10 gears to compensate for the lack of power.
You obviously missed thein my post and took it too seriously.
You obviously missed my sarcasm.![]()
you are right...in more detailed research the 504 is similar in weight to the manche. one of the sites i found had some great info that was completely incorrect lol. i don't expect it to get 42mpg's by any means...its more of a way to curb my curiosity as to whether the motor will bolt up to the tranny with no issues. it will probably be an experiment in gears/tires to figure out the right combo to get the best mileage. im going to add a small intercooler, better air intake and do a few things to make the engine run a little more efficiently. i don't really expect to "turn it up" much if at all. its a much stronger engine that the renault 2.1's that they put in the td manches available stateside. it also has chain driven timing, the stock pump is a bosch and it actually has a few different hole patterns allowing for the use of different injection pumps, the block is sleeved and it is fully mechanical. (other than the pump shutoff solenoid) i hoisted it out of the back of the xj yesterday and onto a dolly in the shop and its a fairly light motor for a turbo diesel. it will be interesting to see what happens when the motor runs through a transfer case and drive shafts (stock 505/504) used torque tubes to transfer power...there are a lot of unknowns in this experiment, and it could be a complete fail. even if it is, i shouldn't have any trouble recovering the money i have in it. im currently deep into another diesel conversion, so if i get bored i can just drop the 4bd1t that is going in my j10 into the manche and see what happens![]()
Not UK, I live in Romania, more precisely Transylvania![]()
You obviously missed my sarcasm.![]()
So I still hold my guess of similar mileage to what I get. Possibly even less if the engine is less powerful than the 2.5 TD![]()