Rb 25 auto Vs 1jz auto

[tembun]

Need some guidance to convert my Volvo 240

Which to choose Toyota 1jz AT or Nissan RB25 det AT?

Some of my friends said better go for Nissan coz spare parts cheaper,
but some recommend the Toyota coz of its power.

On half cut price, which is more expensive?

Which is easy to maintain, 1j or Rb25?

Some said that even the water pump of the 1j is already expensive. Is it true??

Really confused. Hoping members at ZTh can help me b4 I convert my Volvo 240.

Thanx. Hope to hear from the Sifus in this area.

 

[BLaCkHoWLiNG]

i think 1JZ smoother. ... but it's a very good question too... i would like to know about this also... wat's yr comment guys?

 

[cmng]

i heard 1JZ water pump RM1k

 

[BLaCkHoWLiNG]

muahhaha... really ah? kanneh...

 

[Northiswara]

RB25? why not RB26dett??

 

[khoyos]

northiswara: rb25 auto halfcut rm3.5k available anywhere anytime.
rb26 halfcut (if u can find) and no auto, more than rm10k.

1jz no oil pump problem, no crossover pipe for intercooler.
rb25 so fucking easy to get spare parts, not expensive. most parts interchangeable with other rb's.

 

[tembun]

Thanx to all members that respond to my post. Really appreciate.

 

[Northiswara]

northiswara: rb25 auto halfcut rm3.5k available anywhere anytime.
rb26 halfcut (if u can find) and no auto, more than rm10k.

1jz no oil pump problem, no crossover pipe for intercooler.
rb25 so fucking easy to get spare parts, not expensive. most parts interchangeable with other rb's.

woo.............. never tot RB26 damm expensive. just extra 100cc only!! can cost u more than 1k more!!
better i hock up some stroker kit to RB25 and make it 2700cc!!
RB20 also not bad........

khoyos,
RB20 turbo better or SR20DET better?

 

[weikee]

SR20DET much better if you compare with RB20DET, its lighter and easier to gain more power without internal mod.

 

[Northiswara]

how about the price for sr20det and rb20det?
but stock sr20det compete with stock B18C5 is almost the same result in terms of performance on road.

 

[weikee]

you are comparing difference categories engine.. one is turbo another is NA. Engine alone can't give performance, you need g.box to match. NA and Turbo box are configure difference. and what do you want to achieve at the end of the day?

in RWD market, SR20 its more expensive cause demand are higher.

 

[Northiswara]

from the video tat i saw the integra wins the quarter mile race with S15.
but of cozs when u modify sr20det and B18c5, sr20det will give u more power larr.................

if stock vs stock = stock result.........

 

[renxun]

1jz auto vs rb25 auto

1jz auto halfcut rm2.3k-2.7k
bulletproof engine dammly long lasting
oil pump capacity is equivalent to aftermarket rb25
plug and play alot of 2jz parts except for the intake manifold and exhaust manifold.waterpump,alternator,power steering pump all plug n play
can upgrade to 2jz block. only timing belting change and turbo oil supply and return need to use longer.
stock clutch and cover bites to up to 4000whp (for manual)
low rpm torquey engine.peak power 6000rpm
forgiving engine for any wrong tuning. the most u can hear is those knocking and pinging sound and yet it doesnt blow.

about rb perhaps the guys who uses rb can elaborate on your side. i just know that rb have alot of aftermarket performance parts.however for 1j the source is much lesser but available on greenline.jp n nengun.com or if budgeted normally will just opt for 2jz parts replacement

 

[Northiswara]

2JZ-GTE after modification can shoot up to 1600bhp!!
after researching from the net i can see that 1jz and 2jz are good engine.

thumb up!!

 

[khoyos]

rb engines have more tuning n modifications options (IMHO) compared to 1jz/2jz. however, we cannot argue that stock vs stock, the toyota engines are more reliable...

the ONLY reason i chose rb25 over 1jz was because i'm using a nissan and i hate to betray the bloodline...
if i were using some other car, i would definitely choose 1jz...

 

[renxun]

agree with kyosho... dont buy a toyota and masuk nissan. or nissan masuk toyota. in fact just go with the flow so that there wont be so much complication on later days.

if i were to drive a cefiro i would also take a rb25 over a 1jz anyday. one big prob with 1jz manual is once accidently blown the gearbox. definitely having hard time to buy another manual gearbox. as it normally couple with the halfcut and not going to sell seperate.

 

[Northiswara]

heard 1JZ hard to find manual gearbox as most 1JZ comes with auto one.
unless u go for 2JZ. but 2JZ sounds a bit over power......... keke.......

 

[renxun]

actually 2jz in stock condition stock turbos is nothing quite much to brag about. but after some minor modification like using a big single and altering the fuelings can generate quite massive torque compare to d 1jz. i believe a 1jz hybrid with 2jz block can churn out additional 50whp if d existing 1jz is already in the 400whp region.

not much 1jz came with manual. supra and im not sure about d chasers.i got my chaser cut with manual gearbox.dont know its stock or being convert in japan already.

wheres other nissan user? would like to know more about the RBs

 

[a31gtst]

There is no straight forward answer for this. As a Nissan enthusiast I do know that the RB's are pretty bullet proof but for a few known issues which are usually due to wear and tear and when you push the power beyond what internals can handle. As for the 1jz it is relatively known that it is a very reliable and powerful engine and most a31 ceffys in thailand are actually using either 1j or 2j....not common here as parts availability, cost and power goals are totally different.

I guess if it was me it would be down to this 2 factors:

1. If I want something straight forward,powerful and reliable, dont want to modify and muck around then 1jz

2. If I want something that I can mod and have scalable performance, parts and power gains and get parts easily and reasonably priced here in Malaysia then RB25

This is again only in my opinion. I know for a fact that for RB's between the 20,25 and 26 there are many parts you can interchange and upgrade and they are aplenty in most potong kereta, aftermarket parts are also easily available.

Cheers and all the best in your transplant.

 

[khoyos]

agree with a31 gtst. since the thread starter asked about rb25 auto vs 1jz auto, then there is no problem. most likely either engine wont be thrashed as badly as manual.

both has long term benefits. 1jz is bulletproof, rb has PLENTY spareparts. but that doesnt mean that rb is not reliable, and 1jz sparepart hard to find... it all depends on what ur mechanic prefer, cos at the end of the day, it's ur mechanic that is going to install the engine in ur car...

good luck