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 *** 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. But atleast the DE has better aftermarket support. 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. 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

 

I'm from antrx.com, and i accidentally added a comma to the web address and didn't realize it. Try it now.

 

Sorry guy's in my earlier post I ment crank , not flywheel. I screw myself up sometimes.