right now i have a 1994 standard cab hardbody 4wd with the ka24e, 5spd manual with 100,000 miles.

i can pick up a 1995 240sx ka24de with manual transmission, wires and ECU if i pull it for a friend. (70,000 miles) there are a few bolt on turbo kits becoming available.

i was planning on putting a OTT divorced toyota t-case behind the stock nissan case for a crawling double low when i do my SAS with toyota axles.

my problem is this:
on the standard cab wheelbase, the rear driveshaft will be very short with 2 t-cases.

should i use the 240sx ka24de with my trans and t-case and stretch the wheelbase (112"??) to fit the toyota case and have decent driveshaft angles.

OR

should i use the ka24de engine and trans and toyota t-case and install 4:1 gears in the toyota t-case and bob the bed with close to stock short wheelbase. (104"??)


what do you guys think.....

For like 9 more HP, an engine swap hardly seems worth it. As for dual cases, if you can make this work, you are my hero! Yes, the rear driveline would be short and the angle would be steeper. You'll want to use a CV joint on the Tcase end to help compensate for the added angle. You may also use shims between the leaf spring and the axle to rotate the pinion upward a tad to ease the angle as well.

You can get 4.7:1 gears for a Yota case should you decide to use a single case. My buddy used to have these in a 4runner and they were awesome - might be all you need. This is a deeper ratio than you could get by bolting two Nissan cases together (4.04:1), but you loose the selectibility of having two low ranges, which isn't necessarily a bad thing. The trouble with just using a Yota case though, is that the front driveline output is on the wrong side. Nissan front diffs are on the driver side. If using a Yota case, however, your truck becomes a good candidate for an SAS using a Yota front axle.


1998 Frontier 4x4 seriously built
2002 Xterra 4x4 still stock
"Conjunction Junction, what's your Dysfunction?"

Not worth it as Desert Rat pointed out.

Ka24de 143 HP 5200 RPM 154 ft/lbs torque at 4000 RPM(truck application the numbers probably vary a little for the 240sx)

vs

ka24e 134 HP 5200 RPM 154 ft/lbs of torque at 3600 RPM

Torque output is the same and happens at 400 rpms lower for the Ka24e.

If your going to the trouble of turbocharging, I would look more into the custom route for the Ka24e.

Its been down before by some over on the freshalloy.com forums for the 240sx.

1994 KC 4x4 Ka24e

I would have to say the same, you be better off taking the existing motor and beefing it up. There are ample parts out there to give it a little boost. if you are going to go thru all the trouble of fitting in a new engine, why not consider going all the way and attempt dropping in a vg30?




GOT ANY BALLS??????????

i already have my yota axles (4.37) and a yota t-case.

i believe that the dohc 240sx had 155 HP. i heard that a 95 240sx dohc with an altima intake cam and a 93 240sx exhaust cam bumps it up about 22 HP. (longer durations)

the 240 sx engines are generally built stronger because they came in a sports car. i might get the engine for free and it has less miles.

i am wondering how hard it is to bolt a 95 dohc 240sx motor to a 94 sohc truck transmission

i think i heard it's pretty easy....

Here the specs: on the KA24DE for the 240sx

Horsepower 155 @ 5600 RPM


Torque (lb-ft) 156 @ 4400 RPM


Torque is relatively unchanged and occurs at 800 rpms higher than the Ka24e. Unless you turbocharge the vehicle I think you will be very dissapointed in the results for all the work you would put into it.

Torque is what will turn bigger tires.


For example the old 1988 V6 output only 145 hp , but produces much more torque and at lower rpms just where you need them for offroading.

Horsepower 145 @ 5000 RPM


Torque (lb-ft) 180 @ 3650 RPM

1994 KC 4x4 Ka24e