Leon Posted December 9, 2011 Share Posted December 9, 2011 Might just find an L24 in good shape and swap it in. Numbers I saw on the my 78 280Z said it only has like 135 horses and the L24 out of the 70 240Z should have 150 to start. My thought is if I bore and stroke it to the 2.8l displacement or even 2.9l with the L28D crank it would turn out like 180 horses. Hoping like 200 horses with freer exhaust and intake. Is this even worthwhile? A stock L28 has more power than a stock L24. Horsepower was rated differently in the two engine plates you looked at. Quote Link to comment Share on other sites More sharing options...
neotech84 Posted December 9, 2011 Share Posted December 9, 2011 Necro post.... I am pretty sure he sorted it out by now. Considering it's up and running. Quote Link to comment Share on other sites More sharing options...
skib Posted December 9, 2011 Share Posted December 9, 2011 lol about 2 years to late.... Quote Link to comment Share on other sites More sharing options...
cockerstar Posted December 9, 2011 Share Posted December 9, 2011 I feel like necro-posting should be encouraged here... The only way he found this thread to comment in was by searching! Plus, Leon was able to give him some direction on the difference in power ratings and Nathan (SleeperZ) were able to speak about the implications of making an l24 stroker. Necroposting is a good thing here! When I was new years ago, people were patient enough to answer some of my questions and and point me in the right direction. I was wholly uneducated about cars when I came here, and now my Z is on a rotisserie getting way too much of a restoration and I'm selling and developing a few different products in the vendors forum! I'd like to think that I'm pretty knowledgeable about Zs and fabrication/modification now. It was the attitude of the few who took the time to be welcoming and point me in the right direction that really made a huge impact, and for that I'm thankful. Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 9, 2011 Share Posted December 9, 2011 Makes me feel like Cold Ethyl... Quote Link to comment Share on other sites More sharing options...
cockerstar Posted December 10, 2011 Share Posted December 10, 2011 (edited) Much <3 for Wiki D! (but not at all in the sense that you feel towards the sheep...) If it makes you feel any better, I definitely had to search to find out what Cold Ethyl is. I didn't dare ask to be spoon fed my answers Edited December 10, 2011 by cockerstar Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 10, 2011 Author Share Posted December 10, 2011 Haha, I made this thread 2 years ago, and my Z still isn't running. I'm having a wiring problem and can't find some of the power wires in the harness I printed the necessary pages out of the FSM for a '75 280z, but that isn't really helping. Any suggestions? Quote Link to comment Share on other sites More sharing options...
luseboy Posted December 11, 2011 Share Posted December 11, 2011 Haha, I made this thread 2 years ago, and my Z still isn't running. I'm having a wiring problem and can't find some of the power wires in the harness I printed the necessary pages out of the FSM for a '75 280z, but that isn't really helping. Any suggestions? What route did you end up taking? L24 or turbo-ing your L28? I hope you knew that you could put carbs on an L28 and make better power that way. I am putting a ZX L28 in my 240z, and putting triple webers on it. It's a very common thing to do... But I assume you went with the L24. What problems are you having? It's really simple to get a carbed engine to run. As long as you have fuel coming to the carbs, spark, and a starter, you should be able to get it. Be more specific so that people can help you. Or try searching... this has been covered about as many times as the police officers in super troopers could say "meow" in a sentence. Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 12, 2011 Author Share Posted December 12, 2011 Well I've changed my mind multiple times since this thread was started, and after all of that I came right back to this engine setup. I'm running my L24 with motor work and SU's. My problem is that when my harness (the one that goes to the alternator, head lights, etc.), there's no power to anything. I put in a brand new battery in, and still nothing. I can get it to turn over by jumping the starter, but when I turn the key, I get no power. Quote Link to comment Share on other sites More sharing options...
Peejn8r Posted December 13, 2011 Share Posted December 13, 2011 I have an L28 but it looks like the emission crap is cutting the horses. Guess with some minor work and a few tweaks I could probably add some. May look into an L28 crate motor to see what that would add. Quote Link to comment Share on other sites More sharing options...
Peejn8r Posted December 13, 2011 Share Posted December 13, 2011 Turbo-sounds like there is something wrong with you actual ignition in the dash. Heard about a number of those going bad. Quote Link to comment Share on other sites More sharing options...
Peejn8r Posted December 13, 2011 Share Posted December 13, 2011 Turbo-sounds like you have a problem with the actual ignition in the dash. Heard about a couple going bad but the car still runs if you start it from the engine bay somehow. Quote Link to comment Share on other sites More sharing options...
Peejn8r Posted December 13, 2011 Share Posted December 13, 2011 I didnt know you COULD put carbs on an L28 setup for EFI. Def. going to look into that to get some horses back Quote Link to comment Share on other sites More sharing options...
luseboy Posted December 13, 2011 Share Posted December 13, 2011 I didnt know you COULD put carbs on an L28 setup for EFI. Def. going to look into that to get some horses back http://datsunzgarage.com/engine/ That site has a wealth of info on this. I would still say you should use EFI or a standalone like mega squirt if you are set on using a turbo. But read up on that site, it taught me a lot. Some info is incorrect... But the vast majority is right Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 14, 2011 Author Share Posted December 14, 2011 Well I'm gettin my carbs today, so I'm just going to get the motor started today by bypassing the whole wiring harness. I'm so stoked, there car is finally going to be able to start for the first time in 3 years Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted December 14, 2011 Share Posted December 14, 2011 What ever happened to the 2j that you had? or was it a 7m? Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 15, 2011 Author Share Posted December 15, 2011 LOL Don't get started on that. I still have the motor and trans (it was a 2jz), but I just wasn't ready for such a big project with no money Quote Link to comment Share on other sites More sharing options...
neotech84 Posted December 15, 2011 Share Posted December 15, 2011 Guess I did come off negative in my post. It was more of a chuckle. Yes there was some searching involved. I was going to post a more recent build but I totally forgot about it.... Oh well. Good luck getting it on the road! =] Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 15, 2011 Author Share Posted December 15, 2011 Haha, it's ok! Quote Link to comment Share on other sites More sharing options...
zentech Posted December 20, 2011 Share Posted December 20, 2011 Of course it is worthwhile, but boring/stroking and otherwise custom building an engine is fairly expensive. In that case, you might consider starting with an L28 block. Thanks Sleeper, just my thought,a man has to do what's best in these lean day of economic disaster. However it's obvious the guy is a rookie in this business and if he was using an EFI Turbo set up in a 240Z then he would be in shits hell.His swap is easy, all he has to do is bolt up the motor to the trany, wire in the Ign coil to existing hot wires primary and secondary and away you go. I hope my2cents helps.Good luck with your swap. Merry Christmas all. Quote Link to comment Share on other sites More sharing options...
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