Advice Please...

[pintaline]

ok so im about to build an RB30 for my stagea, need some advice....

engine is a NEO 25 head on a RIPS built 4WD block. car will pretty much be a daily drive, mainly after the torque as stags are pretty heavy....

so, i need a turbo, turbo manifold and head gasket (that i can think of right now...)

keeping stock injectors and afm for now, will upgrade at a later date when i do cams and a few other things.

what turbo would suit me? dont want overkill, just a nice responsive daily with a bit of punch if i need it. i also want it to be good enough for when i do upgrade injectors and stuff later but again, im not chasing huge power figures.

also need a manifold to suit said turbo, NEO and non-NEO are the same yeah? looking for a good quality low mount manifold, no cheap shit but doesnt have to be the most expensive thing out there.

headgasket - NEO head, keeping VCT, RIPS block with "hand selected" stock internals. what would be best? what compression would it be running?

oh yeh, also need a decent EBC...

any help would be awesome!

D.

[JonnoHR31]

personally i'd go a gt30 turbo, but thats me. it all depends how much power you want later and what sort of boost threshold your after.

the cheapest decent quality manifolds around are probably the old hks low mount ones, i picked one up for 800 with a gate and screamer, strongest manifold i've ever seen. 6boost etc are good manifolds but with a new gate aswell they're close to 2k

rb26 or rb30 headgasket, lewis engines have old stock genuine 26 gaskets going real cheap at the moment

[TiTAN]

you could go so far as to use the stock manifold + GT3071 / GT3076 internal gate. a 3076 will give about 1 bar at 2500rpm

[KiwiRS4T]

GT3540 is available at the virtually the same price as the GT3076 so future proof your engine with the 3540. The .63 housing will give you quicker response and will limit your top end to about 330 or so kw but that should do you. I believe you can low mount them with a spacer on your stock manifold and save up for a 6boost later. I have wastegate coming off the turbo housing.

[Al]

Turbo selection: I would definitely go the GT3076R, with the 0.82 rear housing . Have it on my rb25/30 and couldn't be happier with the response and power. Currently my set-up peaks at 20psi and drops to 16psi, by red line, and is making 325rwkw; with the same response (if not better) as a totally stock rb25.

My engine has been fully built, though, and has all the "bells and whistles".

I am now going external gate, to hold boost steady till red line and see if i could get more out the package.

Need to ask:

What's so special about a "RIPs block" if all internals are standard? Seems to me, like a major expense for little benefit, if you're not going to build a "full house" engine . A block is a block, as long as the machinist does his job properly and is thorough.

PS: With your 4WD, you'll have an awesomely responsive package, that would be stupidly quick; you will not be disappointed!

[pintaline]

i was going to do a full ground up build and even bought a sump adaptor but then i found the rips block at about half its usual price. i bought it off a guy who planned to put it in his gtr but never got around to it so it just got stored in his shop. its never been used, has everything done to drop an RB26 head on and chuck it in a gtr. so all i have to do to it is the mods to run vct, assemble and drop into my car which in the long run, will save me quite a bit. i was a bit hesitant about the stock internals but seeing what they can handle in the rips cars, i decided that if it was good enough for them, its more than enough for anything ill ever do to my car.

on the manifold, id never considered using the stock one but i dont see why not. for now anyway. only question is, will it be the limiting factor in this equation or will the standard injectors be holding me back first? and where should i be looking for this spacer to make my turbo fit? for info: im also fitting a front facing plenum and a decent rising rate fpr.

for the turbo, would i be better off getting a gt35 something with the smaller housing for now and upgrade to a bigger housing later if required? or will a gt30 something suit fine now and later? i like the idea of future proofing with the larger turbo but as i said, im not chasing massive power figures. next step is likely to be cams, afm and injectors (and manifold if i dont do it now) and at the moment im not really planning anything further. i have other cars in the build for stupid power.

next question is - internal or external gate?? would an external setup be better or would internal be enough? internal now with stock manifold and run external with new manifold or stay internal? or external now and later? id like to avoid the extra cost if possible but at the same time i dont want to skimp on quality here. if external is the go, what do people reccomend?

D.

[N1GTR]

35r, internal gate if daily driven

[TiTAN]

if you go the 35R with a 0.82 rear you will see ~20psi a bit after 3500 (thats what mine does anyway)

[JonnoHR31]

35r for someone chasing response with a standard block? a .82 gt3076 has been proven good for 280-300rwkw in most setups, more than enough on a stock blocked daily.

i have a spacer and internal gate housing etc as a kit if you decide to go that way, pm me if interested

[KiwiRS4T]

i was going to do a full ground up build and even bought a sump adaptor but then i found the rips block at about half its usual price. i bought it off a guy who planned to put it in his gtr but never got around to it so it just got stored in his shop. its never been used, has everything done to drop an RB26 head on and chuck it in a gtr. so all i have to do to it is the mods to run vct, assemble and drop into my car which in the long run, will save me quite a bit. i was a bit hesitant about the stock internals but seeing what they can handle in the rips cars, i decided that if it was good enough for them, its more than enough for anything ill ever do to my car.

on the manifold, id never considered using the stock one but i dont see why not. for now anyway. only question is, will it be the limiting factor in this equation or will the standard injectors be holding me back first? and where should i be looking for this spacer to make my turbo fit? for info: im also fitting a front facing plenum and a decent rising rate fpr.

Injectors will give up first - manifold will handle up to 300kw. Why change the fpr?

for the turbo, would i be better off getting a gt35 something with the smaller housing for now and upgrade to a bigger housing later if required? or will a gt30 something suit fine now and later? i like the idea of future proofing with the larger turbo but as i said, im not chasing massive power figures. next step is likely to be cams, afm and injectors (and manifold if i dont do it now) and at the moment im not really planning anything further. i have other cars in the build for stupid power.

next question is - internal or external gate?? would an external setup be better or would internal be enough? internal now with stock manifold and run external with new manifold or stay internal? or external now and later? id like to avoid the extra cost if possible but at the same time i dont want to skimp on quality here. if external is the go, what do people reccomend?

You will have to modify the front pipe anyway to allow for the extra height of the 30 + adapter plate so if you have a split dump easy to fit an external wg.

Give Robbie at RIPS a call or an email and he will tell you what the cr is with a Neo head (provided you have the stock 30 pistons)

I would think the .63 version would give you all the power a stock RB30 can handle safely - need to go forged and balanced if you want 350kw+

D.

[TiTAN]

the 0.63 version of the 35R is not a good turbo choice given it does similar power to the 3076 but is less responsive

[bubba]

I reckon a .63 housing would choke up on the 30, minimum on either GT30 or 35 would be .82.

Basically, listen to Al, he has the most responsive +300rwkw RB30 I've seen.

Stock injectors and AFM should get you somewhere around 240-260awkw, I'm getting close to this with the highflow on my Stag, which is another option for you but won't make 300kw or have as much punch as a GT30.

[Duncan]

"do it". I've got an rb30 stagea and it's brilliant to drive

BTW unless you are upgrading AFM and injectors, 250awkw is all you'll get (well that's where mine ran out). but that is plenty to get a volvo moving around the suburbs

[bubba]

"do it". I've got an rb30 stagea and it's brilliant to drive

BTW unless you are upgrading AFM and injectors, 250awkw is all you'll get (well that's where mine ran out). but that is plenty to get a volvo moving around the suburbs

Good to know the stock injectors should be good for 250awkw.

One day my Stag will get an RB30 too, it sure needs it much more than the 32 does!

[Duncan]

um yeah I got there but the injectors peaked at 99%. Probably smarter to stop at 235/240ish. I'm putting gtr injectors in now to get plenty of headroom

[JonnoHR31]

it varies a lot. i maxxed standard injectors on cold morning at 185rwkw on a slightly lower reading dyno with a conservative tune. other people make 250rwkw no problems, all depends

[pintaline]

ill be happy with that for now, then save some more money, maybe do some things on some of the other dust collecting projects i have then go for stage 2.

anyway, sofar, a 3076r .82 sounds like the go, internal gate on standard manifold.

best places to buy at the moment anyone?

D.

[JonnoHR31]

got myne through mtq with a larger wastegate fitted to get rid of any chance of creep, have it for sale atm if your interested

[pintaline]

new or used? would prefer new but if the price is right.....

D.

[JonnoHR31]

used but its just the turbine housing and spacers, studs nuts etc. would need to buy a new cartridge (they come without a turbine housing anyway). pm me if interested