Mauisnow13 Posted November 20, 2009 Share Posted November 20, 2009 I was looking through the stickies again, searching for some info that I thought was in one. I came across the datsun heads flow chart in the head sticky. It listed the Ka24 head. So, is the Ka24 a bolt on to the L series or what? I'm a little confused. Was the ka24 on there just for comparison? I searched and found info on the ka24 pistons, but nothing on the head. Can someone clarify? Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted November 20, 2009 Administrators Share Posted November 20, 2009 Does this help? http://forums.hybridz.org/showthread.php?t=120659 Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted November 20, 2009 Author Share Posted November 20, 2009 Alright, so he took the 4 cyl heads and split them into thirds to make a 6 cyl ka head. I see. Let me know if I'm wrong, otherwise, thank you very much. Last time I read that thread, the info on the head wasn't up yet I don't think. I've been gone for a while. Quote Link to comment Share on other sites More sharing options...
aliphian Posted November 21, 2009 Share Posted November 21, 2009 Ya that's what he did. Not something that I would consider doing since I am not a machinist. I have so much to learn about these cars. I know lots about the KA (former 240sx owner) but not a single thing about the L series. Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted November 21, 2009 Share Posted November 21, 2009 you can also fit the KA head on an L20B block, OZDat site has an L20B fitted with a KA20DE head and a turbo for 186 KW at the wheels. http://www.ozdat.com/membersites/zac510/ Otherwise theres the KA24DE head on an L20B block with a Z24 crank + L16 rods and Z22 pistons for a twin cam stroker. http://www.performanceforums.com/forums/archive/index.php/t-67238829.html 2.3L Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 22, 2009 Share Posted November 22, 2009 you can also fit the KA head on an L20B block, OZDat site has an L20B fitted with a KA20DE head and a turbo for 186 KW at the wheels. http://www.ozdat.com/membersites/zac510/ Otherwise theres the KA24DE head on an L20B block with a Z24 crank + L16 rods and Z22 pistons for a twin cam stroker. http://www.performanceforums.com/forums/archive/index.php/t-67238829.html 2.3L @_@ I have those saved in my favorites. Valuable information considering the L4 and L6 blocks just about the same. My true feelings to this thread is ohhhhhhh god not again! Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted November 22, 2009 Share Posted November 22, 2009 Yah, I made a mistake tho, just did it from memory, they are using KA24E heads not DE, for some reason I can't edit my post to correct it... The KA-E head accepts an L series timing gear as a bolt on, the DE would need some work and a new longer chain. Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted November 23, 2009 Author Share Posted November 23, 2009 My true feelings to this thread is ohhhhhhh god not again! Yeah, sorry about that. lol. I was just having a lot of trouble finding any info on the subject, guess I was having trouble searching the other night. lol Thanks for the responses though. Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 23, 2009 Share Posted November 23, 2009 If you're still in school or you have sources for like welding (although 1 fast z says welding won't work) and machine work, its really tempting to try the project. Now that I have some cash I may attempt myself, obviously that's some BIG talk though. If I took on the project, I wouldn't spend my time trying to figure out all the stresses and stuff. I think I would just go around and get the opinions of the wise. Ask my machinist and others, ask some people at school who may have some information, that sort of thing. Don't ask 1 fast z, he won't help you. He's accomplished his project and now that its all said and done its like business secrets, which is annoying but I don't blame him at all. If anyone else, I think I've seen 3 so far, attempts to take on the project he is probably your most valuable critic and sometimes its hard to keep it from pissing you off but I mean, the truth sucks sometimes. Having someone piss on your parade isn't exactly what you want in the middle of a project but some of the info will keep your project from dive bombing. I for one, don't take critique lightly so I always get fussy when ♥♥♥♥ like that happens. I'm a strong believer in there are multiple ways to do certain things and I think the whole twin cam head is one of those applications. If I were to do the project, I'd weld. 1 fast z would probably so you're doing it wrong, I'd probably start an argument getting myself or both of us in trouble, then I'd continue on with the project. If it fails then yes, he will say I told you so and even if he doesn't, you know in the back of your head he's laughing with victory. Haha. Won't know until you try, he has his evidence and there are certainly other places that show otherwise on some stuff. (welding was only an example) Those are my opinions towards the subject. If you are interested in starting on your own the best advice I can say is save every picture of a twin cam conversion NOW. I searched around and 1 fast z posted several threads about his project, some he said the timing chain stuff was private information as with the calculations, some he posted pictures of a mock up, and others the posts are so old that the pictures aren't showing up anymore, or my computer is being stupid. So, before anymore pictures expire, save them. The threads with text will still be in hybridz, just get the pictures. Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted November 23, 2009 Author Share Posted November 23, 2009 I doubt I'd be able to take on a project of this size, and I wasn't really planning on it, I was just obtaining information on something that I had noticed. I saw the flow chart and became a little curious but couldn't seem to find much information. I understand why. lol Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 23, 2009 Share Posted November 23, 2009 Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted November 23, 2009 Author Share Posted November 23, 2009 That'd be the one that evoked the curiosity. lol Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted November 23, 2009 Share Posted November 23, 2009 I presume the KA24 head flowcharted there is a KA24DE? or is it a KA24E? the E head has 3 valves, 2 inlet and one exhaust, according to the pictures in the first link I posted. So even the SOHC KA24E head should flow better than a 2 Valve per cylinder L series head. http://www.ozdat.com/membersites/zac510/ka24head_1.jpg How much weight does the L-4 save over the L-6? 2 cylinders worth of cylinder wall, block, crank length, and other misc stuff should make a real difference. Weight saved is equal to power gained after all. An 186.5Kw L-4 turbo car would likely move better than an 186.5Kw L-6 turbo with an exact match dynograph curve due to the weight savings. Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 23, 2009 Share Posted November 23, 2009 Lets just say 1 fast z, last dyno graph I saw so who knows what he's up to now, was like 489 whp. Twin turbo setup, stock turbos and a spark issue I think... everytime I read this stuff I get excited, wanting to do my own... Quote Link to comment Share on other sites More sharing options...
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