2jz w/ getrag trans... better than RB?

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stk240atx044
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I have a 93 s13 hatch that i just got done re-doing the interior and exterior, want to do a swap in the near future but I keep racking myself on which swap, here are my choices.... rb26 w/ 25 transmission, SR (typical), LS1, or 2jz anyone with some insight?


TN4sty 305
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Do u have the money for it? That's the question you should ask yourself. Also, do you have the time and the manpower to do so? i would go KA-T just my 2 cents :D

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Eikon
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use the search and read any of the 10,000,000,000 which engine is best threads.

stk240atx044
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there are too many KA-T horror stories, I dnt wanna invest all my money just to end up having to re-build or scrap

stk240atx044
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Well my main focus is in the topic, there arent many 2jz vs RB discussions...

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93sivliaUsdm
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i thought the same about KA-T till i researched, all you are really hearing is i boosted my 100k+ mile stock motor and turned the boost up too high. The only semi weak part of the KA motor is the bottom end so rebuild the bottom end with aftermarket parts and go rape fools with a 4 cylinder. if youre realllyyyy wanting to spend lots of money and time then go ahead with the I6 swap. they are both excellent engines strong from the factory and produce a lot of power without having to do a full build. it really is just your personal preference though man

Veriest1
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I wouldn't be scared of a KA-T. So what if you have to rebuild it once to handle the boost? It's still less headache than most of the swaps you listed.

And, assuming you just want tire shredding horsepower, why are you still wondering what to do when you have an LSx in your list anyway?

silvia_ks_69
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any custom swap requires lots of time/ money and even more so if u cant do the wiring and fabricating yourself.

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chaosli
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the one that cost the most in that list is the 2jz the transmission alone is worth some pretty penny.

i say na lsx would be fun

or a rb26 nissan gotta stick with nissan motors

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bobskate22
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I Think the real question is what do you need??

Ka-t and sr are easyer but so much fun!Rb and jz are brutal power.And dont really know about lsx but they should be crazy

You should also think about engine weight and weight balance...depend what you need!

TheBlaiant
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1sikS13
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stk240atx044 wrote:there are too many KA-T horror stories, I dnt wanna invest all my money just to end up having to re-build or scrap
do it right the first time. and there will be less problems then what you hear everywhere

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Eikon
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1sikS13 wrote:do it right the first time. and there will be less problems then what you hear everywhere
Absolutely right!

I think people cheap out on KA-T builds.. just because you can get the motor cheap doesn't mean you can cheap out on all the parts. It seems like the same people who posts "KA-T budget build" threads also post "KA-T problem" threads.

Spend some money building it right and you'll have as much power as an S13 can handle... and you'll have money left over compared to RB/2JZ projects.

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OutToWinPAHC
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2JZGTE are bullet proof, so are the R154 trans, But Thy cost a lot, clearence is tight, and they tend to run hot in the 240's.

LS cost a ton too.

For easy and readily available parts, I would build a RB. Wiring isn't so hard like to like brand, Mounts are all over, its proven. Just get a good motor, or rebuild one, and enjoy the boost. They aren't a V8, but they can make a nice torque curve.

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simmode1
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Eikon wrote:
Absolutely right!

I think people cheap out on KA-T builds.. just because you can get the motor cheap doesn't mean you can cheap out on all the parts. It seems like the same people who posts "KA-T budget build" threads also post "KA-T problem" threads.

Spend some money building it right and you'll have as much power as an S13 can handle... and you'll have money left over compared to RB/2JZ projects.
I had to come to grips with my reality recently. I'd love to swap an exotic motor (VQ30DET with 350Z 6spd transmission) into to my S13. But that fact is that while I might be able to afford it, it is really too ambitious a project for my needs and what I'll be using my car for. I think KA-T is perfect for the average street S-chassis with a little track aspirations.

IMO, the key to a successful KA-T project is to plan for an initial investment/budget between $3,000 to $4,000 to ensure reliabilty. But that initial investment will give you a ~350whp turbo motor with about as much torque and a powerband like a V8.

That's cheap power by my standards. If you think $3k to $4k is too much money too spend, then you really don't need to be d!ck around with any motors.

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leesredgt
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Ive got a 2jz and a RB25 so maybe i can help a little.lol If i were you ide either go with a 2jz or LSX.Screw the RB entirely. I say go LSX so u dont have to worry about an intercooler and all that crap,plus if u keep it NA u have no lag.Just instant power.

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ZootedS13
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leesredgt wrote:Ive got a 2jz and a RB25 so maybe i can help a little.lol If i were you ide either go with a 2jz or LSX.Screw the RB entirely. I say go LSX so u dont have to worry about an intercooler and all that crap,plus if u keep it NA u have no lag.Just instant power.
qft

gaehrings13
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When I had a 1jz in my s14.. single turbo, I had it running really cool. I was using a 7m supra radiator, double maradyne fans, gutted thermostat (so it has some kind of restriction). Normal driving would be are ound 150-160f If I raced it would raise to 180f and drop as soon as started cruising. I was at 460hp. If you want to go cheaper get a NA 2JZ and a r154.. turbo that motor, use the distributor it works fine I've seen 2jz with dizzy go over 500hp with a after market coil. The main thing I will recommend is getting a standalone. I use the EMS Fuel Injection Stinger 4424v, great ecu and easy to wire up.

lol stock bottom 2jzge NA-t met this guy when he bought all the parts from the shop I use to work at.
http://www.youtube.com/watch?v=RFscGt2tRGI

2jzge can be bought for 300$ - 500$.. your going to buy a manifold anyway so most of the parts your going to buy to make the 2jzge turbo you more than likely would by for a 2jzgte.
I'm planning to go 2jzge auto with 2jzgte auto transmission.. but im going to need a stock harness and ecu to run the transmission.. than piggy back the standalone. Im currently running my ka-t like this.. 139,000 miles ka with bad valve seals, boosting 10lb's tuned on the street by me lol, automatic, mostly ebay parts. Depends what you want to do to your car really...

TheBlaiant
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Whoa buddy. Your about a year and some change late LMAO

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Valiant240sx
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[quote="Veriest1" why are you still wondering what to do when you have an LSx in your list anyway?[/quote]

Agreed ^^^

gaehrings13
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lol I found this thread through google and some how forgot about it and ended up replying lol gawd im retarded. :gapteeth:

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sly240
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To me it all depends on the application and budget.

If it’s a street car I would say the KA-T or the rb26.

The KA-T would be for a lower budget car but should still be rebuilt and done right. The RB would make a great street car engine because you can get a broad power curve and the added weight won’t really matter on a street car.

If you’re going to the drag strip you can’t beat the lsx and the 2jz is a strong choice as well.

If you’re going to drift or road race it then the sr is the way to go as it can make plenty of power with a good power curve. It also won’t upset the balance of the car which is extremely important in both of these events.

But above all else is your budget all of these will fail if you can’t afford to put them in right and build the chassis for what you’re doing to (a 2jz or lsx will suck on a road course with the stock suspension or a suspension set up for an sr and an open diff with 7in wide all season tires)
Hope this helps and good luck.


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