Jump to content
SAU Community

Recommended Posts

oh and in regards to the patrol pathfinder, etc block head combine, i was a bit off :cool:

you use the rb30 block, rb26 head and nissan Navara or pathfinder (forgot which one exactly, but a bit of google will surely ifnd it) pistons, conrods and crank.

they will make the engine to a 3.2 or 3.4l engine.

Care to elaborate on exactly how this "might" be possible? Larger pistons dont solve the problem of the block being thin in the bore. Fact is, you can not bore past 88mm with an RB block (all of them) before the cylinder thicknesses get below 2mm.

You can use that bore size if you wanted to grout fill the block as well, but thats not going to work for a street engine, as you would need to do a complete fill to get the strength in the block where it's needed (at the top 1-2" of the cylinder). Even then, an 88m bore is only 3.1lt anyway with an 85mm stroke.

Stroker crankshafts like the one that Spool are developing, combined with a sleeved block (to allow an 88mm bore) are about the only way you can get anywhere near 3.4lt.

3.2lt is easier to achieve. A 6" chevy rod with 1.88" big ends on an offset ground 87mm RB30 crank, with an 87.5mm piston will get you a 3.15lt. 87.5 is about as large as I've "read about" people running without sleeving (not my recommendation though). And you'd want to be dam sure about your tune, so you dont go splitting the thin bores. Having an engine that can only be tuned to 7/10ths is pretty pointless in my opinion.

  • Replies 66
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

im not 100% on how it all got done, i didnt do it, the tuner doing my mates skyline did it, i will be going there tomorrow and ill see if i can get a couple of answers.

could be that conrods are shorter or pistons have a differnent top. in which case youll have really low compression but more litres. or even if the crank has a longer stroke/ turning circle. but ill ask him how the fkuk he did that all tomorrow.

since i havent done it i can only speak from word of mouth.

but on another note, i say buy a 24u block and keep your skyline a skyline not a hybrid "Commoline"

i know this thread is about the engine, but is there a car involved??? i kinda got lost after a while....

Well I haven't bought the car yet, like I said it will definitely be within 1-2 weeks. I just need info on this because the Skyline hasn't got alot of forums around, they're either Japanese or in the UK. This site seems to be solid. I only want 3/3.1 litres but if 3.4 is possible then the more the merrier. However I do want the engine to keep that "RBness" about it.

hay dude, whats this patrol block ur talking about, i think the old ones do run rb30's

mine will handle 1000hp and cost me 10k, how does the patrol block make it a 3.5litre, this is interesting...

Pretty sure the patrol block he means is the RD28 diesel block.

There is a 26/28 R33 in the latest Zoom mag with 937rwhp and has run a 8.3 @ 163mph

This thread gives me the shits, bigtime.

Buy the car. Take to someone who has done the rb30 conversion before who is local to you. Pay money. Done.

Mine is a 3L. Makes enough power to scare other built GTR owners. Still revs like an rb26, if you Fu(k it up it won't rev.

I agree Steve. This thread is almost a waste. Why would you want to buy an already well done 400kw R34 GTR [ACCESS] and then go for an RB30 stroker?

Anyway, don't waste your time, I am buying it as a daily driver. :)

This thread gives me the shits, bigtime.

Buy the car. Take to someone who has done the rb30 conversion before who is local to you. Pay money. Done.

Mine is a 3L. Makes enough power to scare other built GTR owners. Still revs like an rb26, if you Fu(k it up it won't rev.

Exactly Steve, thats why I popped my head in here..... but I gave up, too much cluelessness here for me.

not sure which Patrol motor you're referring to, RB30S (I have one) is an R31 motor with a carburettor (and 4wd sump, also takes ~6l oil). RB28 or TB42?

Try driving a reletively stock one IMO, then decide whether you want to go more displacement, or bigger turbos etc.

I think I'll be getting the OS Giken 3.15 motor, it seems to be coming from a solid company and I calculated it, I could make it work into the budget. Now because this thing is so expensive I want the best tuner in the country. I would be willing to go interstate for a tune if its necessary. Does anyone know a good tuner with a good workshop?

If you are so concerned about displacement, get a Clubsport!!!

or alternatively:

M3 is 3.2 or 4.5 (?) if it's the V8

2.6x1.7 turbo multiplication as per motorsport regs = 4.42, so basically the RB26 is equivelant to an NA 4.4l, but is even easier to get HP out of. Seriously get the car, drive it for a bit, play with what you get then decide what you want to improve. if it is STRICTLY a road car what the F do you need more than 300hp for? even my stock R32 with a pair of -7s is quicker that all bar the top Porsches/Ferraris/Lambos etc to 100... The way you are talking I would personally be suggesting maybe this

post-26910-1285147187_thumb.jpg

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...