KA24E adjustable rockers?? THEY DO EXIST!!
 

Yes I know they are hydraulic, but I have read there are adjustable ones SOMEWHERE. :dunno:

Long story short, mine rattle like hell (surprise surprise) and I hate the idea of buying new ones just to replace something stock. If theyre of comparable price Id like to get the adjustable ones. Provided they even do exist. :confused: Ive already done the whole motor over (w/ some tweaks) and this is all Im down to, to be able to drive it.

BTW I have searched and searched and keep coming up empty. One post I found had a link to them but even the poster realized it wasnt there when he checked the link after he posted and he couldnt find it now. :ugh:

why do you want the them? There is no need for them at all.

If anything call up Gerolamy & have them hook you up with a set.

Well I just figured theres no sense putting in something that will just go bad again.

Excuse my newbieness, :laugh: but who is Gerolamy?

its a 24e sorry to say, we lose
-slo

Well after after several weeks of contemplating my options, ranging from a dual cam swap to an SR swap to trying to have a set of mechanical ones made, to (at the extreme end of my frustration) a carbed Vortec 4.3 GM V6 and 5 speed, I found that they are cheapest thru Nissan themselves. :dunno: Go figure. Thats mostly due to the fact that I get parts at wholesale thru my dads shop. :bigok:

I could have gotten an dual cam motor thru XAT Racing in Tampa and the computer for about 3 bills, but I still would have had to find the harness and hoses to make it all work. But then I would have done all the same work for an SR swap that I cant currently afford. :confused: Besides, Ive never even driven the car and Im not sure if Ill even like it. BTW, the guys at XAT I talked to were real helpful and friendly helping me to make a decision.

Kinda sucks to put something in that will just go bad again, but by the time they do Ill prob have moved on to an SR or wont have the car. :confused:

I havent ordered them yet, but will be soon. In the mean time Ive been doing some of the other small things that needed to be done to finish the car up. I figure by the time I run outta small odds and ends to do Ill have no choice but to get them that way itll be done except for them. LOL!

Someone doesnt know how to use resources do they?
There is PLENTY of mods & parts fo rthe 24e. You just have to look or know the right people)

Well howz-a-bout sharin some sources? :naughty: I cant come up w/ much either.

Well you have to realize. The KA series engines are pretty much in the same league as the Hondas. You need to dump ass loads of cash into them to make them really really fast. That is a given.
Look at the Honda race engines they go from anywhere between 9-12K for a good reliable one. They have parts on them you cant get at Nopi.com or 90% of the honda stores on the net. There are actual machine shops & performance shops that make these parts for "race teams" & will do so for you if you ask them nicely, dont act stupid, & know what you are talking about.
The fact is 90% of people modifing their cars these days dont have a clue as to the working of an internal cumbustion engine..So they blow you off. I would do the same.
My poin tis IF you know what you are doing & dont have the mentality of "everyone else does it, so I want it also".
Learn, talk with & get to know some folks that deal with what you are looking for & in no time you will have your resources.

I havent spent this many years in the automotive world to just share ALL my secrets. I'm here to teach but to also make you use your mind. If you notice most of my posts DO make you think & figure it out on your own for the most part. If you show you are trying hard to figure it out. THEN you get better more in depth info, because it shows you are trying.

Nothing in this world is free & no one should get free handouts in this field. IF you are trying to modify your car & make it faster. Your knowledge should be on par with what you are trying to accomplish.
;)


P.S. Loking at your location. You are not to far from me. There are PLENTY of places here in Fl that would be more than willing to help you do what you need to do.
Dont be afraid to call up REPUTABLE business & ask questions.
Also, look at some SCCA scanctioned race teams. Look at their sponsors, ect...
Look into Grand-Am street stock ( sport touring Class1 I believe)

All this info is out there for the taking. You just have to know how to get it.

Hope this helps you.

HUH! How bout that...I didnt realize your a Fla boy too. Howd you fare the hurricanes? They all missed me, the last one came pretty close tho. :eek: We got LUCKY. The eye wall came w/in 20 miles or so of us.

Ive been in/ around the auto repair biz my whole life. ASE, IICAR, DuPont, PPG, Sikkens, BASF, Ford, GM,.......Certified. Theres more I think but those are the ones that come to mind fast. LOL! But honestly Ive always been a carb V8 guy till the last yr or so. Everything Ive ever needed was readily available. Im an import tech, but performance EFI imports is new to me. :confused:

My biggest problem is searches rarely work for me for this motor. Im not sure if I word things wrong or what but I rarely find what Im looking for. :dunno:

BTW, check out Floridadrift.com I just found it last nite and joined today. :bigok:

Been a member for a while already:)

Also. I was a Carb V8 guy myself( Used to race in ATCO, NJ all the time with 5-6 cars). Up until the mid 90's when I went over to Japan. I have been doing the "import" cars since.
But it's ALL hobby to me now, as i'm retired. :)


BTW. Charley ot us good. We had a 165MPH gust clocked 2 streets away. With 2 tornadoes touching down on a lot diag from us & next to us. Luckily they both missed us.
But we are in a functioning house. I lost my SBC Jag though. It got crushed by a tree.

OK I have found some. :bigok: I havent got them yet, but I have found someone that does make them. I havent had a chance to contact him yet but will be doing so soon. :thumb: Looking at about $220 for them.

I found him by researching E/DE hybrids. I was about to give up and pop a DE head onto my short block...11.??compression, little water/meth inj, and happy gas. :naughty: Ill get these for now so I can start driving the car and start collecting parts to do the high compression motor. :thumb:

That is a load of crap. I custom made a set for myself and a friend of mine, and both sets have been working flawlessly. They reduce the chance of valve float occurring at high rpms, and the 2 sets i made up actually came out weighing less than the stock HLA's. Engine response has improved also, and top end definetly feels stronger.

Weeeeellll I ended up buying a motor/ tranny combo from XAT Racing that was a good runing motor take out for an SR swap. I yanked the lifters, and injectors and it runs awesome now. Ive been sidetracked by painting my Blazer, but Ill be back to the 240 very soon. Were getting ready to build a house and I need to wrap up all my projects soon. LOL!

What is involved in "making" the rockers adjustable? I have like 3 or 4 sets of bad ones now. LOL! I was thinking get the lifters out drill and tap to the appropriate size and get the adjusters...I was thinking Honda ones since we have a Honda head on the bench at the shop I was looking at thinking it may work. Ill have to look at some of the Toyota heads we have around too. I have a few 20 and 22Rs laying around.

You're on the right track, however i'm not going to tell you how to do it, that's something you have to find out for yourself. I tried many different adjusters before i found ones that were suitable.

Well after doing some more looking, it looks like the Honda ones just wont cut it. WAY too small. I havent got too deep in yet but the Nissan lifters look to be about 10mm bores, possibly bigger.

I did see some pics of ones that have been converted tho. Looks like just what I was thinking. :bigok: Ill figure it out yet. :naughty:

And off topic, hey its my post I can go OT if I want. :laugh: One thing Ive noticed in the Nissan forums is NOONE is willing to give up any big help. Twice in this post alone Ive been told "I wont give any sources or details" basicly. Im real big into the 4 wheel drive hobby, (ex club VP, web site Admin on a few boards, owned a 4X4 shop for a while till it took over my life ) and if theres something one of us has figured out, we gladly give the info and have even done CAD plans of them and posted the files. I just dont get the Nissan communities. :confused: Its treated like a black art and the "masters" wont divulge any info. :dunno:

I sell them, that's why i'm not divulging any information. I will say that my personal set (the first prototype set) have held up for well over 10,000km's without adjustment.

This is how i pay for my modifications. By offering product for sale that i have developed.

I can however tell you how to turn the KA24E ecu into a fully reprogrammable unit like the Hondata system.
Search for a program called Live Edit on google, can't remember the exact site address.
You need to buy an Xtronics Romulator to emulate the stock eeprom, hook up the emulator to the serial port of a laptop and there you have it, a reprogrammable ecu on the fly.

This doesn't work with the DE ecu's as they use a different eeprom.

AHHHHHH see now THAT I can understand. Wish you showed up several weeks ago on this topic. LOL! Do you go by any other names on other boards?

Im still not totally over building a hybrid motor tho. Still researching that one. :naughty:

Cool info on the ECU tho, thanx! Since one of the big glitches I have is deciding if I can keep the SOHC ECU, I know the wiring harness can be made to work and the SOHC dist is used...now that I know of an ECU tweak Ill have to dig a bit deeper on that. I dont see why it cant be used, my 240 is stripped down to bare essentials (block, head, intake, exhaust...all other crap is gone, ie. AIV, sec. butterflies, EGR,) and since everything else is pretty much the same, (TPS, MAF...) I dont see why the SOHC ECU wont work. Gonna have to spend some time in the MOTORS wiring schematics books at the shop.

AFAIK, the SOHC distributor can be used on the dohc head allowing the use of the SOHC ecu.

Thats pretty much what Ive gathered also. The "software" doesnt care what "hardware" its running as long as its doing the same thing.

I would prefer the SOHC ecu over the DOHC purely based on the fact that it is reprogrammable easily with Live Edit and a Romulator.

Give www.Rebelloracing.com a try they have been in the world of tuner imports for a long time. They specialize in 510's,300zx's and even the 240sx's. They do KA build up's all the time and are backed up with years of research. If you are looking for custom modification they will do what ever you want. As long as you can make a trip to Antioch,California.:thumb:

What relevance does that have to solid lifters?

They make custom rocker assembly's.

Ive figured out how to fab them myself. I have one 95% done and the rest will just fly thru now that I have it figured out. Doing any fab or machine work the first is always hardest to figure out then it just flys.

Im gonna pick up a DOHC head and start playing around w/ it (port the head and intake valve job ETC) and build another complete motor to swap in. Ill be sticking to the SOHC ECU and looking into what youve mentioned. No real rush, just somethin Ill start playing w/. :naughty:

What I really want is a roller rocker arm assembly. That gives the smoothest curves. People have compared the Z24/KA24e-de to that of old school Dodge Hemi technology. I wonder if dodge roller rocker arms by crane cams are possible to fab onto the KA head assembly.

Doubtful since the E has 3 different Ex rockers. I think the intakes are different too but Im not positive, the Ex ones are the ones I keep having problems w/ so Im more familiar w/ them. LOL!

That sucks!

Take a pic when you are finished I am interested in the end result.

Not my site, but bottom pic on this page is the solid lifters.

http://www.cardomain.com/id/trxracer

Those are the lifters i fabricated for my friend. My car is the same model as that, minus the kit, and is black.
He is running a solid lifter profile cam with them now, and the valvetrain is much quiter. I haven't driven it yet however.

Roller rockers for the KA would be a little expensive, they'd require custom castings, and for the money, it'd be only worth it on an all out race motor. I would love to have them however.

Thats my point. It is expensive, but it can be done. I am assuming that a machine shop can install some roller rockers for a $1000. Anything to get the engine higher reving would be great for me. Other than getting roller rockers I would be looking also into getting the crank machined and balanced. I would like to achieve a high 8000RPM power increase.

If I wanted a high profile lobe and duration cam I can't use solid lifters. So what type and/or brand of roller rocker can be used in the assembly? I've seen it done on L series and z, why not a KA?

What aftermarket roller rockers did they use in the L series motors?

8k is a lot to ask for from a 2400cc KA, i know if you de-stroke it to 2200 you've got a better chance short of something silly like Ti rods, the rotating assembly balanced for 8.5-9k rpm and a rather sturdy valvetrain.

And quite honestly, you'd be better off with a DE head for an all motor build.

Well I have a DE, so I am assuming that with solid lifter's and performance valve spring's, 8000RPM can be obtainable. Possibly with machinig and balancing of the crank I can get it to 8600RPM. Several machine shops have recomended this procedure to me. So is this the right route to take with my DE? I am going to do an overhaul/rebuild so I want to do it right.
As far as after market roller lifters go, I have never seen a company produce them for "JDM" spec. "Hence the stupid joke of putting dodge roller rockers on a Nissan". But I have seen my friends Datsun 510 with L16 block and L18 head. A machine shop that did his head work made the roller lifter's custom for his head, with performance spring's. I had seen the car hit 10000 RPM, but it is scary to watch. Other work must of been done besides the head work, but the head was the performance peice that he bragged about. Can you believe my friend was running Dual Mikuni 44 on a 1.6litre, to me that is ludacriss.

The DE is a direct acting valvetrain, hence no rockers, so with some stronger springs and titanium retainers available from www.ka24de.com I could imagine 8-8.k rpm would be easy to hit with a balanced bottom end, lightweight forged pistons and forged rods. Remember, it is the rods and valvesprings that are the weakest link in a high revving engine.
I don't know if anyone makes solid lifters to suit the DE head.

All good info, but for an update of my issue...the fawkin car ate the lifters! AGAIN! Thats it, Im done screwing around w/ them. Ive put 3 different sets of lifters on it and only driven it about 10 miles total. Good oil pressure ETC, I think Ive just got 3 sets that were on their last legs or somethin.

I do have to say, that when it IS running it pulls awesome and will kick the ass end out at will. Ive never broken down and bought new lifters, (I did buy a complete running motor w/ good lifters and thats the ones it just killed, the other sets were some I had around from other 24E's) and frankly Im afraid to spend that much on them to have them puke out.

Ill finish up the solid rocker mod to get it running again and start a hybrid motor build. Its just a shame after all the work Ive put into this top end (porting ETC) to take it off. :angry: But atleast the DE has better aftermarket support. :bigok: That and no damn lifters! HMMMM someone please tell me the DE's are a shimmed valve...the CA16DE I have torn down at the shop is shimmed and I am assuming the KA24DE is the same way.

I am almost frustrated enuff to drop in a small block Chevrolet. :eek: HMMM how much power will the rear end take? LMAO! I was thinking 4.3l V6 at first, but I have a few SBCs that need a home...

So SSS you are Antrx?

That KA24DE link is dead BTW.

For those of you looking for a cheap, dependable turbo for the KA24e check out my post please.http://www.club240.com/forums/showth...threadid=18447