rebuild

Information on the naturally-aspirated KA24E and KA24DE engines.
Lil_240sx_racer
Posts: 36
Joined: Sun Apr 29, 2007 3:27 pm
Car: 1993 Nissan 240sx

Post

so my ka has about had it...i was wondering if anyone has bored there mottor over to .5 over and rebuilt it...is it a good idea....and after awhiel will i still be able to turbo it if wanted to...

few questionsif i get .50 over pistons do i need to get a bigger cam or shorter rods..anything on that order...will my fuel injectors be off..will i need to upgrade ecu...plz help me out..thank you..
Modified by Lil_240sx_racer at 8:52 PM 3/18/2008


Vegascorbin
Posts: 732
Joined: Sat Nov 24, 2007 9:56 am
Car: 1990 240sx dirt track race car

Post

If all you are doing is a standard overbore then you will need to order larger pistons and rings. The slight differance in size will not require any changes to your injectors or cam etc.

Have the crank checked also. You may need over size berrings. The machine shop that does the block and checks/turns your crank will tell you what size you need to order for all internal engine parts. Do not order any parts untill the machine shop has done their work.

Lil_240sx_racer
Posts: 36
Joined: Sun Apr 29, 2007 3:27 pm
Car: 1993 Nissan 240sx

Post

i plan on giving the machine shops around here a call tomarow to get some price checks..i dont realy know what you mean by checking your crankshaft..im new to rebuilding this kinda motor..im used to 350's and well small engines..a little diffrent..i also need my clutch resurfaced..its chewed up...i plan on keeping the same rods..is that not smart..they seem like there in good condish...thanks for your help..

Lil_240sx_racer
Posts: 36
Joined: Sun Apr 29, 2007 3:27 pm
Car: 1993 Nissan 240sx

Post

another thing i was just wondering about...when putting the motor back in..do i honestly need all them vacumm lines..i know with older motors you can plug a s$$$ load of them off and it still runs fine..


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