King of the 2.5turbos. Rb25 or 1jz?

[maxim]

Which is the superior engine when the parameters are maximum reliable power from stock turbo/stock internals? Who is the king 2.5? Any points would be great thanks

[skidmark]

id put my money on the tojo

[T0nyGTSt]

I think if you look at the bottom end it's clear.

You might also read the tea leaves on the rb26 vs. 2jz because you'll come to the same conclusion.

But like Holdens and Fords, you choose your sides and you live with it and it'll be a cold day in hell before I own a Soarer or Supra.

T.

[skidmark]

i think hes talking about the rb25 not the rb26

[maxim]

thanks for the replies and yeah stock RB25 v stock 1jz - i can see how its like ford and holden

[Cubes]

lol

[EnricoPalazzo]

are we referin to twin turbo 2.5 toyota?

[maxim]

yep twin turbo 1jz v rb25det (r33)

[AutoTrust]

The Toyota is stronger stock, but the nissan engine comes surrounded by a skyline.

[dojobi]

Yeah I think the order is a bit like this:

RB25............1JZ.....RB26. (this is supposed to be a scale )

The 1JZ is a lot better than most ppl think. I think of it as a cheaper RB26 alternative.

[GTRgeoff]

Then again when you can get gtr stuff and poke it straight into the 25 it adds a different aspect to the equation. Yes I realise you are talking stock but the rod upgrade is cheap and easy.

If anything, my only detraction from the 25 is the ease with which you can overboost the engine and the resulting detonation kills the pistons.

End of the day, horses for courses...and this is a skyline forum so bugger off with yer toyo crap (yes my soarer alternator died today so I'm off toyo)

[Busky2k]

1JZ cos you dont have to crack it open to get past 300rwkw. I think M Donnon's Soarer hasnt been opened yet? And hes over 300rwkw. Correct me if im wrong tho.

Altho I think the RB25 sounds tougher.

[usuckpoo]

The newest 1JZs come in single turbo format and still make the same power.

1JZ also comes wrapped with pretty good looking/handling metal: witness the Soarer and the entire JZX90/100/110 series

[Cubes]

They are a bit like the commodore/ford. Weigh way to much, clunky slow gearbox's.

[d0p3y]

VVTi 1JZ > RB25 fo shizzle

[tomj]

Whats a gearbox got to do with how good an engine is? It makes a difference in the entire package but not in this instance..

1jz > RB25

the jzx100 / upgrade soarer versions that are single turbo are a step better again.

[PHaT MR30]

i think they both sound amazing in their own separate ways, and both have their own better/worse characteristics

[mx83toy]

i think they both sound amazing in their own separate ways, and both have their own better/worse characteristics

id go with this comment...there is a write up in zoom comparing the 1J to the rb26 look it up and read it i dont want to sound bias...

the RB25 is a fantastic engine but as far as 1J vs rb25 no offence but the 1J is better compared to the rb26...

[Morgs]

I wouldn't say the 1JZ is better than the RB26, but it certainly is in a class beyond the RB25.

Daresay the reason you don't commonly see serious example of 1JZ is due to the vehicles they were released in (Soarer, MKIII Supra).

The update single turbo VVTi 1JZ is where it is at

[JimX]

The 1JZ might be a "class beyond" the RB25, but I daresay that the rest of the car (R32+ Skyline) is a "class beyond" any comparable Toyota. What do you buy a car for anyway, the strength of the bottom end? You can change that easily. But you can't change fatass porky styling. My "inferior" RB25 is pumping out 220+ at the wheels and I see any point in comparing it to other engines that are capable of holding more power. My engine does the job and that's all that matters.