Engine choice

Pinkfluffybunnys · Post by **Pinkfluffybunnys** » Tue Aug 19, 2008 9:24 pm

Info From Nico,

General

Pros

-its an RB! from a skyline!
-closest thing to a real skyline
-I-6 potential
-the awesome sound.

Cons

-Yes, it is more weight, around 150lbs more for a rb25 swap. the weight isnt important tho, its the weight shift. it really depends on engine/transmission and how you mount it (i.e. crossmember or aftermarket mounts), but realistically your looking at 2-3% overall weight shift. if you look at the numbers in a 3000lb car thats only a 60-90lb shift forward. just to put that in perspective, 12 gallons of gas weighs roughly 100lbs so there is more of a shift between a full and empty tank, than a RB swap. IT DOES NOT DESTROY THE WEIGHT BALANCE OF THE CAR

-Parts are still rare and expensive, but things are starting to come over
-mounts or crossmember swap required

RB20

Pros

-cheap
-skyline engine (?)
-WD-racing was saw near 400hp with his
-easy swap
-free revving up to 8k is possible on stock valve train
-excelent gas mileage off boost (it is a 2l after all)
-can make good power with minimal mods.
-sensors interchange with lots of usdm cars

Cons

-SR is easier with same potential (for your lower goal people). out of the box both will make near the same power, and upgrade easily to near the same numbers.
-cheap turbo (ceramic wheel)
-"weaker" tranny, nearly the same as KA/SR trans
-akward intake manifold
- its getting old 89-93 production years
-high mileage engines need proper mantinence ie timing belts and water pumps
- tiny injectors (270cc)
-intake manifold flange is diffrent from rb25 (greddy manfold does not bolt on)
-some rb20's can have the same problem as the early rb26 engines with the crank collar issue

RB25

Pros

-good potential (500+ on stock internals)
-VVT
-strong tranny (also include this when you price rb25s)

Cons

-expensive clips (when you get that strong tranny)
-becoming rare and expensive parts
-weak pistons ring lands
-not full glory as rb26
-another lame turbo, but better than the RB20's
-factory hp overrated (easily achieved with basic swap upgrades though)
-side feed injectors (hard to find)
-akward intake manifold
-custom driveshaft required (unless you use RB20 tranny?)

RB26

Pros

-the GODZILLA of RBs
-most potential of all
-twin turbo stock
-upwards of 300+ out the door
-bullet proof

Cons

-$$$$$
-$$$$$
-r32 crank coller issue (kills motor)
-need for rb25 tranny
-hard to find r33 motors
-impossible to find r34 motors
-did we mention $$$$$?

RB30det hybrid

Using the higher displacement 3 L block from the RB30 engine mated to the RB25 or RB26 head can yield a very powerful engine. Here's a thread with details. http://forums.nicoclub.com/zerothread?id=188136

For Specs on engines and good info also check:
- http://www.meggala.com/nissanrb3css.htm

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The RB25 crank is not FULLY counter balanced. The RB26 is.

My favorite part about the rb26 is that the entire motor will support over 425RWHP before any modifications need to be made.
This includes, injectors, mafs, turbos, and ofcourse all internals.
it also has internal throttle bodies which create better engine response
Stock bottom end has been taken to over 1000hp.

RB25DET is 9:1 Compression, better low end torque
RB26DETT is 8.5:1 Compression, bring on the boost baby!!

All RB motors are basically Factory Blueprinted. I love seeing the look on people's faces when I tell them that.

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This Guys using a Z32 ECU to run a RB

http://forums.nicoclub.com/zerothread/3 ... -with-pics

ReeceZ · Post by **ReeceZ** » Tue Aug 19, 2008 10:04 pm

ReeceZ · Post by **ReeceZ** » Tue Aug 19, 2008 10:04 pm

Blerry hell

, I think I changed my mind about the engine swop after reading the recent posts.

.

Riekert · Post by **Riekert** » Tue Aug 19, 2008 10:05 pm

Gary57 · Post by **Gary57** » Wed Aug 20, 2008 8:37 am

Ok Ashley I appologise for the name calling it was childish, Im sorry.

The issue with your posts is youdont ever say why dont you do this or do that, you rather say thes a waste this is the best way. The problem is what is best for you isnt always best for everyone else, to me my Wolf system is better than your Nistune system but to you it is the other way round. Different strokes different folks.

Also you will post questions asking questions which we all give you the info you require but when we ask you a question or why you need that info, you NEVER reply. Why are you so secrative?? You are going for any records so why not help the rest of the guys out?? I think you have valuable info in that head of yours, but it is no good to us being in your head, share and help US out, its what the forum is meant for.

When you make a statement on the forum you are quick to back it up with full pages you have quoted from anyother site, If I wanted that info I would go there my self. By doing this it is implying that you dont know much and simply reguritate info you have read, for this I am weiry about taking your advice seriously. Rather explain your oppinions in your words and you will get FAR more credability for it.

My ranting is over, I will agree to disagree on the statement that the Nistune system is the best on the market for under R3000

.

jon · Post by **jon** » Wed Aug 20, 2008 9:57 am

Never gonna let you down...

Pinkfluffybunnys · Post by **Pinkfluffybunnys** » Wed Aug 20, 2008 10:17 am

to me my Wolf system is better than your Nistune system but to you it is the other way round

This proves my point you are not reading or understanding what I am telling you, Your wolf system is a great system at no point did I attach it but for R 3300 rand you cant get one, installed and tuned can you?

But In my eyes Nistune or an emulator it is better then a dictator or a gotech, In both available information and ability to tune

When you make a statement on the forum you are quick to back it up with full pages you have quoted from anyother site, If I wanted that info I would go there my self

But you not doing the R&D most of the continuing arguments can be avoided, Most the stuff I post goes against the grain of what been said so If I don’t back it up no-one would take it seriously not that they do anyway. Do you read most of the links I post?

Anyway back onto topic, It seems a lot of people are shifting to using the stock systems in swaps there are a number of guys that have installed RB25 and RB20 that have sourced there corresponding ECU’s through Ebay or other sites and then done the wiring using the factory pin-out tables then they would go with some type or real-time tuning board or emulator, It seems to solve a number of issues covered like they don’t need to weld on any trigger wheels ,change coils or change any type of sensor when swapping some have been able to keep nice function like fuel usage displays and cruse control. Also it seems to be cheaper then going with a Power FC or Emange system most commonly used in the states

jon · Post by **jon** » Wed Aug 20, 2008 10:32 am

Never gonna run around and desert you...

Riekert · Post by **Riekert** » Wed Aug 20, 2008 10:47 am

Never gonna make you cry...

300sx · Post by **300sx** » Wed Aug 20, 2008 10:50 am

never gonna say goodbye

Gary57 · Post by **Gary57** » Wed Aug 20, 2008 10:56 am

I give up.

Riekert · Post by **Riekert** » Wed Aug 20, 2008 11:16 am

Never gonna tell a lie and hurt you.

Vlade · Post by **Vlade** » Wed Aug 20, 2008 11:40 am

made up my mind... 2jz...

jon · Post by **jon** » Wed Aug 20, 2008 11:51 am

Vlade wrote:made up my mind... 2jz...

Weak, why not a v8? I'd love to put a LS1 in mine if money were no object

Sokar · Post by **Sokar** » Wed Aug 20, 2008 1:13 pm

jon wrote:
Vlade wrote:made up my mind... 2jz...
Weak, why not a v8? I'd love to put a LS1 in mine if money were no object

LS1, LS6, 1UZ even a 4.2 audi is nice.....