z24 vs z24i WHATS THE DIFF??

Forum for the Xterra, Frontier and Hardbody, the smaller workhorses of the Nissan lineup!
Mrknight1932
Posts: 5
Joined: Mon Dec 08, 2014 9:29 pm
Car: 1987 Nissan hardhody kb z24i

Post

Hey new to the forum and would appreciate the help. I just purchased a 1987 Nissan hardbody kcab z24i two days ago, I wanted to know whats all the difference in the z24 vs the z24i AND WHICH IS BEST??? my pops had a 87 hb kcab z24 and man it had balls I mean it would keep up with some v8s, while mine doesn't seem to go past 4k rpms in first or 2nd gear, WHAT GIVES???? :rotflmao :crazy: :mad:


User avatar
kibatheloanwolf
Posts: 305
Joined: Sun May 31, 2009 11:25 am
Car: 1987 D21 2.4L with a 5 speed manual trans
2010 Camry 2.5L with a 6 speed maunal trans

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I believe the main difference is that the z24i is a fuel injected and the z24 is carbed other than that they should be about the same

Mrknight1932
Posts: 5
Joined: Mon Dec 08, 2014 9:29 pm
Car: 1987 Nissan hardhody kb z24i

Post

I also heard that the intake and head are different as well and that z24i has a maf?

Mrknight1932
Posts: 5
Joined: Mon Dec 08, 2014 9:29 pm
Car: 1987 Nissan hardhody kb z24i

Post

I was thinking cant u dyno it and play with the old computer to override that 4k rpm top out??

david29
Posts: 11
Joined: Sat Aug 02, 2014 7:34 pm
Car: 1987 Nissan Hardbody D21 King Cab 2wd

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From what ive observed, the early Z24's are carbed up until 85 and some 86 model 720's. The Z24i came in all the HArdbody trucks from 86.5-89.

lilhustler
Posts: 3
Joined: Wed Nov 06, 2019 4:33 pm
Car: 1984 Nissan Datsun 720 z24L naturally aspired

Post

"OK so heres the deal. I bought an 84 720 with rebuild motor and many new parts. Was told it wouldnt idle because it needed a carb rebuild. After much work I found out that it was a newer electric feedback carb put on a non feedback truck and wouldnt work." (((((((i found this on ratsun.net)))))
i have a stupid simple question for y'all...
Is the z24L (n in the 4th digit) a feedback carburetor. does it have ecu under the seats?
does my carburated engine have all these components even thought it is not fuel injection (egrc-bpt valve, mass air flow sensor, throttle position sensor, egr valve, swirl control valve, etc, etc.)
and is the weber 32/36 feedback carb?

i am getting ready for an engine swap, same motor, is there anything i need to pay attention to when i pull the engine out,
i heard these were sensitive having something to do with setting the timing, does that ring a bell? but i shouldn't have to do any of that. i considered getting into the timing chain cavity and tightening the tensioner and guide. what do you think, the replacement engine has 100,000miles. also is there a gasket between the tranny and engine i should order, and are there specific bolts or hoses, and their sizes you would replace. thanks for the time.

lilhustler
Posts: 3
Joined: Wed Nov 06, 2019 4:33 pm
Car: 1984 Nissan Datsun 720 z24L naturally aspired

Post

i didnt get any response so i made a new thread called specifics on the z24L


lilhustler wrote:
Fri Nov 08, 2019 7:15 am
"OK so heres the deal. I bought an 84 720 with rebuild motor and many new parts. Was told it wouldnt idle because it needed a carb rebuild. After much work I found out that it was a newer electric feedback carb put on a non feedback truck and wouldnt work." (((((((i found this on ratsun.net)))))
i have a stupid simple question for y'all...
Is the z24L (n in the 4th digit) a feedback carburetor. does it have ecu under the seats?
does my carburated engine have all these components even thought it is not fuel injection (egrc-bpt valve, mass air flow sensor, throttle position sensor, egr valve, swirl control valve, etc, etc.)
and is the weber 32/36 feedback carb?

i am getting ready for an engine swap, same motor, is there anything i need to pay attention to when i pull the engine out,
i heard these were sensitive having something to do with setting the timing, does that ring a bell? but i shouldn't have to do any of that. i considered getting into the timing chain cavity and tightening the tensioner and guide. what do you think, the replacement engine has 100,000miles. also is there a gasket between the tranny and engine i should order, and are there specific bolts or hoses, and their sizes you would replace. thanks for the time.


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