Stroking Rb26 To 2.7 Or 2.8

[Nee-san]

Yeah at street power levels the extra valve train weight is more than made up for by extra valve area and the fact you have dual cams meaning less compromise with valve timing, however is it possible that at extreme rpm of 10-11k which some of these motors see that the extra valve train loss could become an issue, does anyone know if more or less lift can be achieved with single vs twin cam rbs?

Plenty of twincam RB's at 12000RPM+++

Not sure on the lift though although I woulnd't assume so.

Think about it, at higher flow levels the increased area and variability between INLET and EXHAUST with added tuneability becomes an even greater benefit.

[Rolls]

Think about it, at higher flow levels the increased area and variability between INLET and EXHAUST with added tuneability becomes an even greater benefit.

This is what I would have assumed as well, just trying to get an idea about why the records aren't basically the asme, probably has nothing to do with actual power and more to do with the cars.

[Nee-san]

This is what I would have assumed as well, just trying to get an idea about why the records aren't basically the asme, probably has nothing to do with actual power and more to do with the cars.

Yeah mate, that's pretty much what I've assumed as well.

[Piggaz]

I'll throw in my 2 cents here.

I own a high comp Tomei 2.8 with a set of decent cams with a pair of GT RS's hanging off the side of it. After driving a 3 litre with -10s (MarkoR1's) and being in N1GTR's car with a very similar setup I would not even look at the 2.6, 2.7 or 2.8 engines. It almost wants me to throw mine in the bin and build a 3 litre + engine. All that rubbish you hear about "30's dont rev" is exactly that.... a load of crap.

[bigmikespec]

I'll throw in my 2 cents here.

I own a high comp Tomei 2.8 with a set of decent cams with a pair of GT RS's hanging off the side of it. After driving a 3 litre with -10s (MarkoR1's) and being in N1GTR's car with a very similar setup I would not even look at the 2.6, 2.7 or 2.8 engines. It almost wants me to throw mine in the bin and build a 3 litre + engine. All that rubbish you hear about "30's dont rev" is exactly that.... a load of crap.

Don't throw it away Paul; just leave it out the front and I will come get it

[Piggaz]

Don't throw it away Paul; just leave it out the front and I will come get it

Ah. Be cheaper to buy a $50 RB30 block and build that haha

[Nee-san]

Ah. Be cheaper to buy a $50 RB30 block and build that haha

Don't know where all you guys get these $50 RB30's from !

[bubba]

Don't know where all you guys get these $50 RB30's from !

I got a complete RB30E for $100 out of the quokka..

[chuckie]

Hi Dan ,give Brad call he will tell you what is best as he`s had both in his Stagea,

hope you find what your looking for cheer`s Chuckie.

[stricnynel0s]

a block in crappy condition in the us goes for a minimum of 1k in the usa, they average around 2k not including machine work, belt, headgaskt, gaskets, and yadda, bare minumum is 5k for a 3 liter block to be operational in the us, i would just do a 2jz...

[bubba]

wow.. even with shipping there would still be like a 500% markup!

[Rolls]

shipping a whole engine block would cost at least $500 if not more, $1k is probably a pretty accurate outcome for buying a $100 block shipping it there and some markup to make it actually worth while.

Edited November 10, 2010 by Rolls

[Piggaz]

Don't know where all you guys get these $50 RB30's from !

Figure of speach man.

[NYTSKY]

I'll throw in my 2 cents here.

I own a high comp Tomei 2.8 with a set of decent cams with a pair of GT RS's hanging off the side of it. After driving a 3 litre with -10s (MarkoR1's) and being in N1GTR's car with a very similar setup I would not even look at the 2.6, 2.7 or 2.8 engines. It almost wants me to throw mine in the bin and build a 3 litre + engine. All that rubbish you hear about "30's dont rev" is exactly that.... a load of crap.

Agreed. A well built/balanced RB30 can rev to 8 and beyond without rattling itself to pieces.

The head and turbo combo is the key for sustaining power all the way up there though.

Mine is going to 8000rpm maybe more if the head allows

[turboedsloth]

Don't know where all you guys get these $50 RB30's from !

I picked up 2 for $50 each both in good condition

[zebra]

I got mine for nothing

[stricnynel0s]

sadly i think i will never achieve the 3 liter status, if my stroker 2.7 dies, i am going neo and calling it a day lol, i would love to get a rb30 though the two i have seen were ridiclous.

[KiwiRS4T]

current mods:

t517z turbos

264 greddy cams

trust front/dump pipes

trust PEII cat back exhaust

trust 720cc injectors

power fc d-jetro

os giken twin plate

basically i wana build the ultimate stagea in all aspects power, looks, interior the complete package and wana make 600 hp+ at least to make the wagon really quick due to its weight, it will be a show then street car. the budget i have is approx. 40k for engine.

If you want to build the ultimate Stagea you will have to go north of 600awkw (not 600hp) to beat Psymin's ultimate Stagea. He used a 2.8 stroker kit but bang for buck Rb30 will get youi there cheaper - see Spool or Proengines or RIPs: http://www.ripsltd.com/

[dirtyRS4]

If you want to build the ultimate Stagea you will have to go north of 600awkw (not 600hp) to beat Psymin's ultimate Stagea. He used a 2.8 stroker kit but bang for buck Rb30 will get youi there cheaper - see Spool or Proengines or RIPs: http://www.ripsltd.com/

"Click."

Edited November 10, 2010 by dirtyRS4

[260rsstagea]

thanks for all the ideas and advice i will let you know what happens and i know about PSYMIN's stagea and if i wanted to build the ultimate power stagea i would have to go north of 757kw but thats not what i'm after. I'm after a show quality stagea big custom stereo, custom paint and engine with power to back it up so it isnt all show (which i have yet to see anyone do to a stag PSYMIN being the closest). Thanks again for all the help will keep you posted.