TaylorB

I need to know the main problems that people run into when they change out the ka24de to a sr20det in a 1991 nissan 240sx.

 

lyon23

the problem is you might take a risk and the engine might be bad.. research and see if you want to take the risk.

drPop

Problems you will run into...
Startermotor is different you need jdm starter
the wiring harness is complicated and diagrams are few and far between
parts are not directly compatible with SR20De motors beware (some parts are)
Drive shaft is a little longer w sr20det (maybe just in my case auto to 5spd)
tachometer won't work with cluster from non DOHC engine
Front mount intercooler a must
bigger brakes strongly suggested (don't go if you can't stop)
you need bigger exhaust
won't meet immission standards

But the car will go like stink and you will love it
Money can not be a barrier

Good luck

Chris90FB240sx

Not true

Smart but not a must right away.

tjgtr

Hmmm my tach from my 89 SOHC works with my SR20DET only thing is the damn speedo doesnt

__________________
89 S13 Silvia conversion 5sp, SR20DET 306 rwhp

 

sunnydet90

ahh hell just turn the speedo into a big boost gauge

Don

__________________
car cost=$500 total parts cost so far=$4750+

Chris90FB240sx

you can wire the SOHC RPM gauge to work with the SR. It takes time and someone who has the SR diagrams to do it but it can be done. Also the Speedo thing may be a bad sensor in the tranny or like mine bad wiring.

drPop

If you have the diagrams that would be great!!! I have bought four yes four... clusters from DOHC's even one from a JDM 180sx and none of them work. By the way the "frontmount intercooler as a must" comment is really because I found it alot easier to place the fmic with everything apart IE the front bumper. why not make life easier and do it all at once???