rb30det hyrid vs a rb28det

[R33skyline]

which is better for daily drving , track and ect?

[Joe]

all depends on how well its built and to what extreme. this is a VERY loaded and broad question.

[Dano]

all depends on how well its built and to what extreme. this is a VERY loaded and broad question.

Exactly wat he said /\ ...We need A LOT more info to give an opinion.

-Dan

[Valley]

http://www.geocities.com/r32_jjc/the pdf has the info on the hybrid.http://www.skylinesaustralia.c...15420this has just about ALL the info you'll ever want on an rb30. last time i looked at it i had read it all... a lot more pages have been added... looks like i have to continue.

this at least covers the rb30 side... you're on your own with the rb28.

[DanCouga]

What are your power goals? What is your budget? What will be the car's primary function? Where do you want the power?

I'm not too sure about the RB28s revability, but I know the RB30 is suggested to stay under 7500. I'll be able to let you know about the RB30DETT as soon as I finish building mine. Just 20 more days on a boat and the short block should be here.

If you just want to try something different, go RB24 or make your own VQ30DETT and pretend you roll in JGTC.

[matt_calgary]

RB30DETT = you gotta big wallet!! Get an RB30 over here is big bucks. Then again, boring out an Rb26 to a 28 and replacing it with TOMEI pistons is also big bucks.. what are you goals and budget to work with? What are you wanting to the car mostly for? If track, what genre of track(drag, drift, auto-x etc) But honestly, you probably are never going to attempt it anyways, so why bother ask

[CursedGTR]

Anything RB is big bucks. I know if you buy the RB28 kit from HKS you are going to pay between 8K - 10K for it depending on if you go with Stage 2 or Stage 3. I found one recently that a guy decided not to use so it is still in the box for about 4 grand.

I myself am using a JUN Billet Crank with JUN Rods and HKS pistons on my bottom end that in itself is a pretty expensive set up.

The RB30 can be made to be reliable but it is not a rev happy motor like most RB's. You should jump on an Australian website and see what they actually put into them (to make reliable power, it is a little more than a hybrid).

The HKS RB28 kit is being used in quite a few cars over here with reliability and longevity. I have seen some of those cars even rev past 9K just because they were built correctly and had the head work to back it up so revability can be gained back for the right amount of money. If money is no object I would go with the RB28. it is a great kit with a Billet Full Counter Crank, Billet Rods and Forged Pistons, It only requires a one millimeter overbore (The compression height of the pistons is 28mm if I remember correctly instead of the stock 30mm) The rod legth is not modified and the kit is proven in many a car. If I had not found a good deal on what I am using now, I would have used the HKS 2.8 kit. But the 2.7 will do me just fine for now.

[Valley]

not enough people seem to follow links. the second one is an assie website with a 160page discussion on rb30 hybrid and EVERYTHING about it.

most simply do a engine rebuild and slap on the head. the first link has the pdf that tells you EXACTLY how to mate them. simple.

however, r33, make your own desicion, with your own research. you won't be happy any other way.

[matt_calgary]

I don't think its so much knowing how to do it as there is, as already stated by yourself^^^, lots of information. However, bringing an RB30 block over to North America is pricey. Start with an SR20 by the sounds of it

[DanCouga]

Why does everyone say it is so pricey? What kind of prices does everyone else get? I picked mine up for $600 US SHIPPED. Of course I am picking it up in Savannah to save on most of the cost.

[T4 RB25det]

Rb30s are pretty cheap. it makes sense when you look at the availability of them. they are allover the place in aussieland and since it was such a mass produced motor that not too many know abut they go for around $300 down there

[StricNyne]

ya i can get a rb30 block cheap as all hell, just have fun mating head to it

[Valley]

ya i can get a rb30 block cheap as all hell, just have fun mating head to it

easy, rb20det or rb25de, you simply bolt on the head, add another timing belt tensioner, and the oil feed/drain for the turbo's. rb25 you have to worry about vtc, you can get rid of it, and it even shows how to do that. and rb26 you need to enlarge the holes in the block where the head mates and bolt it on, as well as the oil lines like the rb25de. the pdf is only 5 pages long w/ pictures, and covers those four engines. (i think, its been a while since i've looked at it.)

[StricNyne]

could u send me that pdf ? thats sounds interesteing , to bad rb26 heard are easier to get

[DanCouga]

could u send me that pdf ? thats sounds interesteing , to bad rb26 heard are easier to get

It's in that first link he posted. The geocities site.

[ISL33P]

below is the pdf, very good guide for all

complete rb30s that are still running are very cheap. can be found from $AU100.

All RB 6 cylinder heads bolt up, but dont use the rb20 as the bore size is smaller and therefore useless. use the rb25 (de or det) or the rb26.

rb25 de or det heads can also be found for around $AU500
Modified by ISL33P at 7:43 PM 1/15/2006

[stiergott]

they are wicked cheap, mine came out to a bit over $400 shipped to atlanta. my only saving grace was a friend of mine was down there on vacation and picked it out himself, 75% of the cost was shipping.

http://users.tpg.com.au/cobra30/twincam.htm

[DanCouga]

Have you already 'built' yours? Did you do anything about the con rods and girdle? I have read that the stock con rods are comparable in size and design to those of large HP small blocks, just wondering if you saw the need for replacement.

[BoostFab]

they are wicked cheap, mine came out to a bit over $400 shipped to atlanta. my only saving grace was a friend of mine was down there on vacation and picked it out himself, 75% of the cost was shipping.

http://users.tpg.com.au/cobra30/twincam.htm

which shipping company did you use?

[stiergott]

DHL. all the shipping companies had pretty much the same rates, but the yard in australia used DHL and i didnt want to rock the boat.

i havent gotten around to building the motor yet, life kinda gets in the way. i have heard of people using gm rods and 4ag rods. at the moment, i.e. until i find out other wise, im gonna use stock sr pistons and rods, or fordged bits depending on how much machine work costs. im working off the assumtion that the rb30 and sr crank have a similar diameter (the bore and stroke are the same so why not?). if someone knows for sure that im wrong please let me know before i start buying ****.

[jdms13rhd]

do RB30!!!! RB28 will be extreamly expensive! I will be selling about 20 rb30 Built blocks this year! I got them sitting in ausie right now so If you did want me to hook you up we can figure somthing out!

RB30's have lots of torque!!! You can race them all day long and still drive them home! Throw some N1's on it and tune the hell out of it with cams and GTR injectors and you can see 450-500hp no problems!!!!! Im building one this year for my cefiro with the 26 head.

[BoostFab]

DHL. all the shipping companies had pretty much the same rates, but the yard in australia used DHL and i didnt want to rock the boat.

i havent gotten around to building the motor yet, life kinda gets in the way. i have heard of people using gm rods and 4ag rods. at the moment, i.e. until i find out other wise, im gonna use stock sr pistons and rods, or fordged bits depending on how much machine work costs. im working off the assumtion that the rb30 and sr crank have a similar diameter (the bore and stroke are the same so why not?). if someone knows for sure that im wrong please let me know before i start buying ****.

i 've been setting up with a guy in AZ for several rb30 blocks...and he quoted me with DHL freight...i'm still looking for a cheaper freight option.

btw! from what i know the sr conrod bearings are the same as other RB's, so I don't see why it won't work for the RB30

[NightKids2]

Let me know about those RB30s when you get ready. Im real interested

[email protected]

[stiergott]

i 've been setting up with a guy in AZ for several rb30 blocks...and he quoted me with DHL freight...i'm still looking for a cheaper freight option.

btw! from what i know the sr conrod bearings are the same as other RB's, so I don't see why it won't work for the RB30

soif the rod bearings are the same the i ought to be able to use the sr rods and since i can use sr rods i cun use sr pistons and stock sr bits will hold together past 20psi and 500whp, in an sr. this is gonna be fun.

[BoostFab]

although the sr and the rb30 has a close stroke lenght...as far as using the sr rods and pistons...that is unknown territory....

[Valley]

i should never have posted those two sites....

oh well, have fun everyone can't wait to see what comes from this post and how many bigger, yeestier loafs come out of the oven!

[REDLN]

DHL. all the shipping companies had pretty much the same rates, but the yard in australia used DHL and i didnt want to rock the boat.

how much is shipping from there? I have one i'm getting from there i want to know a ball park figure. Can any find a rb25 transmission that isn't that pricey. Cause **** there more then some motor clips. Well the places i asked.

[DanCouga]

What companies have you talked to already? Have you tried JHot?

[BoostFab]

i should never have posted those two sites....

oh well, have fun everyone can't wait to see what comes from this post and how many bigger, yeestier loafs come out of the oven!

dude, hold your horses...those sites have been there for years, you probably one of the last ones know about it...so don't be too arrogant.

[Valley]

yeah, they have been around for a long time. it took me several DAYS of searching through google and skyline forums to find them.