Obviously you havent studied that the RB was manufactured by an Australian company to begin with, a bore kit for the RB 26dett is the RB30det made for many of the vehicles in Australia for the nissan skyline GT-S limited and there SUV line of vehicles.........
One of these bad boys on low boosting produces more Torque and CHP than a Boo Boo 2Jz...........
Jun, and HKS also make products for the RB so whats your point???????
Stick with Nissan and get great Torquey results, keep that Toyota crap in the Soarer and Supra forums........
Bad karma to speak that madness up in here.....

 

Point is there 1000HP+ 2jz's by many Performance Co's. and private owners. But wait it cant handle the boost, you're right

 

My point is be original.
A 2Jz isn't needed for Nissan, besides what other heads can you swap to bump compression??????
None to answer it bluntly.
For the RB you have 2 heads to chose from the 26 and the 30....
So while companies have wasted time on R&D over one 2JZ, it's internals, and the head work involved there are many options to chose from on the RB.........
So if you also make more power with the RB, it should cost you half as much as most companies invested into with the 2Jz.....
Besides like I said before, BAD KARMA to use TOYOTA on a Nissan, enough said......
I am brand loyal.........
The 2JZ was built on hype.....It is HYPE...........

 

the man just asked for an opinion, i simplying answered it. dont

shoot the messenger.


for sake of arguement i fully respect nissan/toyota alike. we wont see eye 2 eye on engine topic, u say it is all hype bla bla yea etc...ur opinion, i wont pursue that digression of the original question and end it at that

 

2jzs are not a bad motor of course....used domanantly by dyno and drag queens...if u own a 240 your prolly not into that stuff...your probably more interested into more attractive things like...."turning"..."torque"...and some concept called "being able to drive your car"....not that 2jzs are completely useless...but putting one into a 240 makes no sence to me...i can think of endless reasons y...and...lets leave the diffferent brand engine swapping to top secret (its more work and money than what its worth)....lol...oh and whatever u do...dont go domestic motor...

 

Sorry bro got mad when I saw you wrote 2JZ, I also get mad when I see the LS-1 small block in a couple of the 280z's at infinion raceway, FUC7KIN' pisses me off!!!!!
It ain't your fault...
Ayuaddict I see you live out in San JO, thought you might know where the drift track is outside of San JO area, people have been telling me to go out there but everytime I search for it on google I can't find it...... Can you help?

 

ive had an rb25det in my last s14. i dont know about the ka-t. but i can tell you how much i liked and disliked the rb25det.
first off it is hard to work on due to limited engine bay space. parts are a pain to get time wise. finding them isnt very hard. as for power i liked it a lot. it sounds better than an sr which i also have. it is a great engine for street. i mean its torquey. as for a ka its easy to get parts easy to work on but your engine is prob. old as crap. too much power added on will just shorten its already short life. ka just about anybody can turbo one. rb25det i did myself it wasnt hard. in fact all the climate controls from the skyline that i put in my car seemed harder, maybe it was cause i was tired. anyway mine had a/c and power steering, i hooked up the a/c, a shop made the power steering line for me.

 

You could always use an RB25 tranny with an RB26 engine.

BTW don't bore the RB26. 450 RWHP on stock internals in a 3000 lb car is more then you'll ever need.

 

There is ALWAYS room for more!!!! You wouldn't say that if a Civic Hatchback, with same HP 450 or so and weighs half as much as you do, beats you! (power to weight ratio) No NEVER!
Don't limit one's self. You must go all the way if you got a rb26 by then!

 

If i were not in college now and had the funds i would go with a RB series motor. I had an rb20 but had to turn it down becuase of extra money needed. I now own a KAde and was going to boost it but i ran back across another CA with everything that would save me about 600 to 800 bucks. The Rb motor and KA motor are 2 different types of motors in diff classes. the KA which i have come to see is great ( big V) will never out due the power of a RB25 or 26 due to evolution and engeneering ( on the circut that is)

 

Maybe true, we will see. The only true advantage that I have seen from the RB class of engines is the CVET technology. Other than that you are talking about 2 completely different platforms.
One platform which is KA, designed with a stroker crank.
Second platform is the RB, that has that of a high rev crank.

The real weakness of the KA isn't in the engine, you can spend the amount on forged internals, and bring it to the cost of the RB actually increasing the bore of the KA to a 2.5 litre which I believe is the maximum bore before overbore occurs to the coolant passages.
The only true difference is in the redline, if the KA could infact redline to the level of the RB you would have one sik power achiever, "which you can do with forged internals, knife edged crank, and titanium retainers". On the other hand the KA comes with a weak transmission "gear box and synchros", but the adaptions of the 300z, 280z gear box to bell housing can signicantly correct that problem. Another correction is the differential. Gear ratio is extremely important to the acceleration of the vehicle and the grip achieved to both wheels.
I don't know if any of you have been to the phat KAT forums lately, but they have some pretty sik KADET's that are already breaking the track records of the RB.

The other factor that I always bring into play is the weight of engine and transmission. An RB25 with trans is 180LB.s heavier than that of the KA, the RB 26 with RB26 TRANNY is even heavier.

There are alot of variables that make both of these engines great competitors. As for me I stick with the underdog, just because the resources for this USDM KA are abundant for me.
If car enthusiasts can build an 11second progressive NOS injected KA, I don't mind sticking with the underdog...........

I'm also into street respect and credibility, if I can take an engine that you think can't outperform, and I can, I'm the one with graditude and respect. That to me is all it's really about being a tuner, not just your average swapper.

 

the weight isnt a big factor. i noticed very little loss in the cornering ability of the vehicle in fact i would say it cornered well with an rb. power wise it is great. personnaly though my next project that involves an rb or ka will be ka. its just way too easy and cheaper to get oem parts for a ka. i like going to local parts stores and getting what i need in a day as opposed to weeks or month. vinny good luck with the ka. im with you on the ka

 

Does anybody know if VISIONBOY productions finished the 9second KA24det yet? Just wondering since we are on the topic of RB26dett VS. KA24DET. I know the fastest 200sx in the world with RB26det is only runnin high 8's in Europe.

 

i'd go with the ka-t because in case of any repair issues, it would be easier to get parts for the ka since it's a US motor

 

Yea Big V i checked out phat-ka t they indeed have some sick shiit. As far as tuning to get a car running. I have been whipping *** on the streets just using poor man mods ( not serious drag, just playing around)

But as far as the Rb motor is concerned im also aware that this motor upsets the natrual balance of the S chassis. And ur def right aboot the motors being on diff levels. To me its like trying to compare a
F20( s2000 motor) to a d15( 89 civic motor) lol.

Also vinnie send me via pm more info on the 300z gear box and ill be at the junk yard this week to start the project. my sec gear syncro is gone