RB Tomei short block or RB26DETT or ..... ???!

[koria]

Hello guys

Can you give me your opinions about having

RB Genesis Tomei short block, or completed RB26DETT, or RB30 from R.I.P.S garage (New Zeland).

I'm eager to hear from you.

Thanks.

[Stefan_001]

depends on what you want to do with the car?

[koria]

I just want the stronger and best of them in HP

and daily use .........

what do you think ?????

[bobbo]

It would help alot if you could be more specific with your goals. That way we would be able to give more accurate input with regards to results and not wasting money. For example if you're trying to build a 500hp RB26 you don't need a Genisis block.

[mcfly]

I have to agree with the comments above, we need more information/better outline of your goals.

[koria]

Actually, for me, I would like to setup something get up for 700-800 HP maximum.

The main thing is that I want to buy something very strong, daily use, doesn't need more maintenance


All these engine is pretty good, but there is a few points I'm gonna mention to each one.

1- RB26DETT is the cheapest one, but it doesn't give much HP like the others
unless you put tuning stuff.

2- RB30 has middle price and better thab RB26DETT, but I don't know why people don't use it, is there a problem with this engine ????

3- RB28 short block (Tomei) is the strongest, but it's expensive and I don't know if I can spend my mony in tuning the RB30 better than pay more mony just for short block( Tomei )

waiting you opinions guys

I'm realy need your help.

[koria]

Guyyyyyyyyyyyyyys

I need your answers please.

Now I make my question very clear


Waiting your replays

Thanks. MUOSA

[mcfly]

What you are asking is quite vague really. There is so many ways to achieve what you want and it's a very personal process that I believe should be done with a year or two of research. Another option is to drop the car at the shop and have them do it their way.

Regardless of what engine you begin with you need the same basic things. forged rods and pistons, big cams etc.

I would not buy a tomei block as you pay out of the nose. If money is no object OS Giken makes a very nice rb30/rb31 kit. If you want a budget RB30 talk to RIPS in NZ and get him to build an engine for your application, I believe he was even toying with an rb33.

[bubba]

RB30 hands down :)

RIPS work is excellent, particularly when it comes to RB30s, not sure if his RB33 stuff is publicly available yet.

There are two companies here in Australia that do stroker kits, Spool Imports do a 3.4L kit and I believe Nitto do a 3.2L kit.

There is no need to spend 15k+ on an OS Giken bottom end when for ~AU$5k you can get a built and balanced bottom end from the likes of proengines.

If you're talking a stock engine swap, I would go with the RB26. More expensive as a stocker but cheaper to get easy power from compared to an RB25 which would be a cheaper swap to begin with.

Any RB30 is going to require at least some assembly and if you want to do it properly, a bunch of dollars throw at it in the form of parts and machining.. which really, if you want 800hp, is going to cost a lot regardless of engine choice.

The strongest way to build an RB is to source an N1 block, new 33gtr crank, forged pistons/rods (CP etc), nitto/tomei/jun oil pump, ati damper then find a GOOD machinist who knows what he's doing. There's a lot of tricks like enlarging oil returns, extra bearing feeds etc that will help an RB live a long life, if looked after of course.

Also don't expect to have 800hp with minimal maintenance.. expect frequent oil changes, blowing clutches, snapping gearboxes and axles, upgrading pretty much every drivetrain component in your car (hell I've done that and with a lot less power).

In summary: srsly.

[koria]

What you are asking is quite vague really. There is so many ways to achieve what you want and it's a very personal process that I believe should be done with a year or two of research. Another option is to drop the car at the shop and have them do it their way.

Regardless of what engine you begin with you need the same basic things. forged rods and pistons, big cams etc.

I would not buy a tomei block as you pay out of the nose. If money is no object OS Giken makes a very nice rb30/rb31 kit. If you want a budget RB30 talk to RIPS in NZ and get him to build an engine for your application, I believe he was even toying with an rb33.




Thanks about your answer. but you didn't talk about the RB26DETT yet ???

would you compare the it with the other RB's please like RB30 ( RIPS garage)

and RB30 OS Giken garage ??

[koria]

RB30 hands down :)

RIPS work is excellent, particularly when it comes to RB30s, not sure if his RB33 stuff is publicly available yet.

There are two companies here in Australia that do stroker kits, Spool Imports do a 3.4L kit and I believe Nitto do a 3.2L kit.

There is no need to spend 15k+ on an OS Giken bottom end when for ~AU$5k you can get a built and balanced bottom end from the likes of proengines.

If you're talking a stock engine swap, I would go with the RB26. More expensive as a stocker but cheaper to get easy power from compared to an RB25 which would be a cheaper swap to begin with.

Any RB30 is going to require at least some assembly and if you want to do it properly, a bunch of dollars throw at it in the form of parts and machining.. which really, if you want 800hp, is going to cost a lot regardless of engine choice.

The strongest way to build an RB is to source an N1 block, new 33gtr crank, forged pistons/rods (CP etc), nitto/tomei/jun oil pump, ati damper then find a GOOD machinist who knows what he's doing. There's a lot of tricks like enlarging oil returns, extra bearing feeds etc that will help an RB live a long life, if looked after of course.

Also don't expect to have 800hp with minimal maintenance.. expect frequent oil changes, blowing clutches, snapping gearboxes and axles, upgrading pretty much every drivetrain component in your car (hell I've done that and with a lot less power).

In summary: srsly.




Thank you very much man.

you wrote a very good information.

now I'm gonna decide . please answer me these points.

1- Do you advice me to buy a RB 3.4L from spool impors (as strong engine)

insteadof RB30 from R.I.P.S ???

2- do you think that I can have more power by putting tunning stuff with

RB26DETT instead of RB30. because you said RB30 need to be prepaired

assembly, so you mean it is hard to upgrade this engine.... right ???

3-why do you think the best way to have RB engine is to have N1 block, new

33gtr crank, do you think these stuff more stronger than the other engine.

Thanks a lot

waiting your replay .

[bobbo]

Again there are so many ways to achieve what you are trying to do.
So I will tell you what I would do...
RB26 block preferably an early one because it apparently has a higher nickel content.
R33 or 34 crank or if budget permitted a Tomei or comparible crank.
Forged rods and pistons from any reputable manufacture, Tomei ect.
Have the rotating assembly balanced.
Improved harmonic balancer.
Matched cams for selected turbos.
Tomei/Nitto or comparible oil pump or best would be a dry sump set up.
Bearings (talk to builders) and fasteners (ARP) will be critical aswell.
Nismo/N1 water pump. I don't know why there isn't an electric one available.
There is a lot of evidence of what can be done with the RB26. It has been said it yeilds the "best response".
Tuning, driving style, and the ability of the engine builder will ultimately determine the lifespan of the engine. If you frequently spin up to 10G RPM it won't last as long as an engine that sees 8G RPM.
Keep in mind. No matter what you do when building a high strung engine and beat on it you increase the chances of failure.
The more you dig for answers the more you will find. I believe in response and reliability first. I personally don't care about HP numbers.
If there is one thing I've learned from both my job and my hobbies it is this... KEEP IT AS SIMPLE AS YOU CAN.
Please keep us up to date as you begin and progress with your project.

[bubba]

Yeah the old K.I.S.S. rule.. Keep It Simple Stupid

You really need to pick a realistic power goal and use for the car before you can make informed decision such as you want.

Say for instance, I wanted the most responsive 300rwkW I could get on a tight budget.. I would be building an RB25/30 with freshened stock internals, stock cams and plenum and bolting a GT3076 or equivalent on there.

There are many ways to skin a cat and without clear direction you will be going in circles and pissing your money up against a wall.

[koria]

Thank a lot man.

I think I'm gonna go with RB26DETT soon

Thanks for everyone who trys to help.