re4r01a to sr20det

[robt95240]

ok so heres my dilema i have a 95 s14 with a ka24de n/a motor in it that i wanna do a motor swap to a sr20det but i wanna keep my auto trans that i have in it due to having a lot into it n i like to have an automatic over a manual due to being a straight line racer ne ways what im trying to figure out is what i have to do to make it fit or will it just bolt up.. thanks for any help

[guyaverage]

I'm not 100% postive, but I believe the RE4R01A is what Nissan uses for the SR, so the bellhousing should bolt right up.

Transgo makes a shift kit for this transmission, you may want to get one (search on ebay). I have it, and it *really* firms up the shifts, especially 2-3 and 3-4. I really like it. Follow the factory shop manual, go slow and follow every step, keep it clean and its not difficult at all. Takes a couple hours.

At a minimum, if you dont use the shift kit, replace your dropping resistor with a 100-ohm ceramic resistor from Radio Shack. I would probably use two in series (200 ohms) on an SR. This will increase the line pressure at lower throttle settings and help prevent slippage. Not the best way, but it will work. I did it for a few years before I got the shift kit. Dont just unplug it the way some may suggest. It will slam the 1-2 shift and you will break parts quickly doing that.

An auxiliary transmission oil cooler wouldnt hurt either. I use one off a 90's Ford Explorer/pickup. Perfect size, dime a dozen in the junkyard, and Advance Auto and Autozone both sell a cheap kit ($7 or so) with nylon clips to make it easy to mount it to the radiator (or A/C condensor).

Oh and be prepared for the abuse from the forum talking heads for keeping an automatic. They arent nice around here.

[darens13]

i think its cool you are doing something different, its not something i would do, but i think its neat someone is doing it. good luck.

[robt95240]

Already got the shift kit done trans cooler light weight flywheel (that will probably be sold after the swap) n its been rebuilt with kevlar bands by a compny out of my area that warranty it to 800hp n a 2700 stall so I know t will hold up to the abuse is why I'm wanting to keep it glad it will bolt up.. thanks for the help ill keep y'all up to date on the build

[terry_240sx]

Post up some pics man!

[robt95240]

will do shes nothing great to look at right now but a work in progress for sure...