Rb26 Powered Stagea (rs260's Or Modded 2.5's)

[wolverine]

I have a question....

How do you manage to pull the ceramic wheel on the exhaust side of the turbo, into your engine?

it seems that the RB26 may get reversion up one of the runners when they turn to dust.

i do not think it has ever happened on an RB25 but there are several reports on RB26's on the forum from reliable sources.

[unique1]

Im unsure on exhuasts, i have always made my own and bought mufflers. I havent had much experience with twin turbo setups either as mine has been single for about 3 years now and i havent had the need to investigate into twin systems. Definately do the dump pipes, front pipes and the rest of the exhuast, dont leave the stock dump pipes if u can help it as they are terrible. Sorry im not much help but i dont want to reccomend gear i havent used myself

[Lil_Bobby_260]

Thats a fair call brad, someone on here will know. I just have no idea ho far to keep the two pipes seperate for etc... ie are they tuned length like primaries on headers for V8s or what? Seperate dumps then a collector before the cat? Then a decent 3" system right through? Highflow muffler? i dont want a cannon hanging out the back - i like the twin 2.5" pipe look...

[_Ryan_]

get r34 N1'sgtr_turbos.doc

[Lil_Bobby_260]

hahayeah i my dreams - im 22 and just bought an RS260. I'll be happy to afford to drive it mate. EXHAUST!!!

[Angus Smart]

I own a gtr, i'll just add. if your going to do a full exhaust from turbos back, which will require you to pretty much remove the turbos to fit the dumps anyway.. (unless its easier on a stagea tho i wouldnt expect any more room in there) your better off saving up around 2500 for some 34n1 turbos

the standard ones are not a great idea to have sticking around if your going to chase a bit of power.

as for the exhaust/turbo outlets, there are plenty available and most are rather proven, split or unsplit is really the option.

i use the trust split dump/front pipe in one. its a pain in the ass to fit, but seems to be the goods as the split is very long.

other than that tomei, hks, power enterprise and this list goes on and on even the xforce ones are pretty good, but are just hks copies.

Edited February 22, 2008 by Angus Smart

[BoyWhoCriedWolf]

I have RS581's (N1 GRP A's), HKS dumps, nismo front pipe, trust PE2 cat back and a Drift cannon. Said it before, will say it again - picked up 20rwkw by cutting the Trust rear can off and putting the el cheapo Drift one on.

[Lil_Bobby_260]

Well im not chasing a ridiculous amount of power. Basically until i own the car outright in a few years, all i want to do is run a decent exhaust, change the filter to a decent panel one, run an e-boost or similar, and just cruise it as is. Just enough to give it a bit more kick. I have a 600x300c100 fmic sitting in my shed that i may be able to plumb into the original GTR pipework, if so i'll do that too.

So the components are - dumps (split or not - this runs the wastegate as a seperate pipe?), front pipe, cat, then your cat back system comprising of your muffler andrear pipe?

[Angus Smart]

trust us, change the turbos if your considering doing the dumps, it really isnt all that much trouble. only a few grand.

and trust me in saying, your going to do them later anyway so save yourself the money and get them done while the dumps/exhaust are getting done. as its a good long days work to install dumps

not trying to twist your arm or anything

Edited February 22, 2008 by Angus Smart

[Stinky Rooster]

exhuast wheel particles can be thrown back up the runners and into the exhuast ports. I havent experiences this myself so im only going off relayed information from people who have. They usually find ceramic inbedded into the pistons. search the forums as it has been discussed before

Dude, I wasn't doubting you at all, I was genuinely interested.

If I was asked to list all the things I would NOT want to happen to an engine, I think that would rate right up there with the best of them

[Duncan]

hey stagecoach, for exhaust just replace front pipe, cat and cat back exhaust for now.

You said you don't need heaps of power and do have a budget, so put the exhaust on, pull the restrictor out of the airlines to run 14psi and stop there engine wise. (well, replace timing belt, water pump, spark plugs, coils). Will give you 230-250awkw

next step would be turbos (hi flow standard probably), boost controller, injectors, afm, dump pipes, computer, fuel pump. You really need to do all of those togehter, will give you 300-350awkw. And then $6k for a rebuild 3 months later.

[Lil_Bobby_260]

im not sure if 14psi through the stock turbos is a good idea? was looking to run about 12, ive heard it mentioned that 14 is a lil bit rough on them?

[cefiro]

Depend who you ask about the limit of the turbos, I think if they are only around 60k km (who knows with Japanese cars) old 14psi is ok, I have heard of people running 16 - 18psi, but I think that thats way too much. I dont think you will make 230 awkw without a computer or remap. To be honest I have just pick mine up and been disappointed at the straight line speed of the car, but mine is stock as a rock. so I am looking at starting my shopping list when some $$$$$ come through again. I have only driven one before this and I remember thinking the same thing. But I am coming off a 200rwkw S14, so it makes more power and weighs about 400kg less.

[Lil_Bobby_260]

Thanks for the help so far guys. Thanks for the PM's, too, took a bit of reading but i can see the points a lot of you are making.

I will probably just get the new front pipe, high flow cat and cat back system, and run 14psi til they dont work anymore i guess, at which stage i will get them highflowed and upgrade to split dumps to match up to the rest of the exhaust. Im looking at Brads E-boost with envious eyes as a do have a bit of cash sitting there (just under $10k) but i really dont want to spend too much on the car being that i still have to pay for shipping and compliace and rego.

I have a 600x300x100 FMIC that im pretty sure can be plumbed into the factory piping. I know its unneccesary at this stage, but i have it so may as well i guess.

So panel, FMIC, exhaust, and E-boost. Anything else im missing for a basic power gain?

[BoyWhoCriedWolf]

Get a power FC straight up. Mine had similar mods and made 250awkw, but at very high boost (18psi). Shortly after that I had a massive lean out and she went pop.

[Lil_Bobby_260]

Hopefully i dont have that problem at 12-13 psi. Im sure the injectors and pump will cope, and a retune should make sure the stock computer runs enough fuel in. As said, im not aiming for any specific power rating, just looking to see what i can get with a few basic 'step 1' kind of mods. Its a daily driver so i dont want to get too hectic.

[_Ryan_]

tune before anything else PFC

[Angus Smart]

start with the exhaust/front pipe and filter,

get yourself a power fc, and start buying parts and collect them. get it all thrown on at the one time and tune. will save a bit of money!

[Lil_Bobby_260]

Have started looking around at PFC's, a friend is running one in his 180SX with great success. I like the in car tunebility that it offers. I had a long read of PaulR33's write-up on it and it seems the goods if you can get one, with Apexi being finished now and all that. Will have to start scanning the forums for one i guess.

Paul reckons that with just the apexi panel filter, new exhaust system and larger FMIC, running a boost controller with the PFC will make a fairly decent difference so i'll probably go with that for a while until the turbos start shitting themselves. Shouldnt be too soon only running 12PSI or so. Is it safe enough to run say 16 through them occasionally?

[Angus Smart]

Its ok to boost over that 14pound area, but you just dont really want to be doing it for too long, More boost means more heat and the ceramic wheels will break alot easier. so a constant 16pound could very well spell the end for your turbos, and even possibly the engine.. tho i am sure people have run more on them before, but it just isnt worth the risk..

as for the power fc. apexi is still open for business and you can still get a power fc, some models you cant. but 32, 33, 34 gtr are still avaliable i'm not sure what you use on a stagea?