Everyone's Thoughts, Opinons And Experiences With The Rb 25 Wanted

[GTSBoy]

Maybe you don't understand, I am wanting to speak to someone here and now so I can ask that person hear and now. Maybe I have specific questions about the engine or their experiences with the engine, what problems they may have had, what things that helped them, etc.

Yoshi, I already told you my personal opinion on exactly how much better an R32 with a 25 in it (and specifically a Neo) a looooog time ago when you first started asking about how to turn your RB20 into the world's biggest nugget. I told you then, many others told you then, and I tell you now, and many others will tell you now, that Nissan should have put the 25 into the R32 right from the start, instead of persisting with the 20. A 32 with a 25 in it is the way they always should have been. Neos are just a whole lot better again (although the improvement from 25 to 25 Neo is much less noticeable than the improvement going from the 20 to the 25).

Edited October 1, 2015 by GTSBoy

[CEF33Y]

Geez, Ima stay out of this thread, I like the RB20 one better, haha

[WMDC35]

Just do the 25, no science needed FFS

[Dose Pipe Sutututu]

I read some things about the RB25 and I thought I read several places that something about the oil pump or something to do with the oil that the RB25 has trouble with more compared to the RB20. I've actually heard a few people where I live mention the 25 is not all of that and its keep what I have or go RB26 or GTR(This is from tuning shops also). So I want to hear from people who have the engine in their car and who has done the change so I can ask about how it drives, speed, etc. Reading old posts from years ago(which I have) is not going to completely help because I am not going to try to PM someone or reply to a 2-10 year old posts.

hrms...

no sure what problems... I track my car often enough, it has a completely stock motor and yet to see it explode.. and it makes a lazy 340kW at the rears.

How it drives? I drive it like I stole it, out of corners smashing the limiter.

[89CAL]

25's have more capacity and VCT, of course they are better than rb20's. The oil issues have solutions, other than that if you treat it right it will be fine

I never had issues with my old stock motor running 18psi and 260rwkw. The only reason i changed it with a fresh one is because i wanted to build an engine and thought i may as well make it strong

Seriously. If guys on a Skyline forum where I'd say around half the members have or have had an RB25 are telling you a 25 will be better then a 20, then really what more info do you need?

Its all here to be found if the time comes and if you already know about the oil issues then theres not much more to know as far as im concerned

[hardsteppa]

if you do decide to do the swap though, then make sure you post up a 'how to' and how it worked out for you, so that the information is online somewhere if anyone else ever decides to do it in the future and wants to search for such information.

[tridentt150v]

if you do decide to do the swap though, then make sure you post up a 'how to' and how it worked out for you, so that the information is online somewhere if anyone else ever decides to do it in the future and wants to search for such information.

Search.......whats that?????

[Dose Pipe Sutututu]

RB20DETs are gay, I had one.. SR20DETs non-VCT makes more torque, hectic a SR20DET VCT makes even more torque.

I've owned a RB20DET so I can bag them out, they're shit.

[Ben C34]

I think people who think that the rb25 is so good, should put a rb20 in their car to compare.

[niZmO_Man]

I quite liked my stocker RB20 in my old R32, was a good stock motor (ate and spat out a bolt, destroying the stocker turbine) and was good on petrol. But mine wasn't making 400hp.

But since you're going to take the engine out, put an LS1 in.

[Dose Pipe Sutututu]

why a LS1? fuark that LS7 mang..

here's why:

[89CAL]

If your gonna pull the engine out, you may as well go all out

[Leroy Peterson]

L13 FTW

[Jordy32]

RB25 swapped R32 is the dumbest idea i've ever heard of

[Count Grantleyish]

Since you had to ask.

Chuck a 13b in.

[niZmO_Man]

why a LS1? fuark that LS7 mang..

OP is struggling between RB20 and RB25, so LS1 would be suited for him (cheaper, done before, etc. etc.).

Since you had to ask.

Chuck a 13b in.

Like this?

[Skepticism]

Since you had to ask.

Chuck a 13b in.

No, no, no... PPRE 4-rotor.

[yoshiii335]

Besides the cost of buying the engine, putting it in, and registration fee and higher car taxes of putting a RB25 in my car, I just feel its a pain to have to change the speedo cable, use different types of coil packs, have to have the weird wiring, etc.

If I put a 26 in the car it would be so much easier for certain things and parts able to use between the engines. But unless I get a good working 26 for cheap, I will buy a GTR instead of putting one in my car.

How about the crank collar issue with the 25 if pushing high hp? Is that something that I would not have to worry about unless going high high hp? Is the VCT the thing that really makes the big difference in torque between the 20 and 25?

[Ben C34]

A 25 is 25 percent larger capacity.

That makes a difference

VCT makes a difference.

2 things.

[yoshiii335]

A 25 is 25 percent larger capacity.

That makes a difference

VCT makes a difference.

2 things.

Reading on the 25. Is it that easy to get 400hp with simple mods?