Jump to content
SAU Community

Recommended Posts

Ok since most of u guys have a shit load more experience when it comes to modifications and wat not, thought id post up some stuff im gonna do to my project car (96 gts) now im aiming for around the same power as my 95 gtst (225.1rwkw) or possibly more

i thought it mite be best to start with some stronger internals, and then hook a turbo up later,

what do you guys reckon,

- hypereuretic (however thats spelt) pistons as opposed to forgies coz im not after too much power as yet

- some new camshafts

- a set of valve springs

- possibly a new cam gear or 2 lol

- some conrods and better bolts obviously

now i havent gone into this much detail with my gtst but im not sure how strong the rb25de engine is and if it will be able to handle a good turbo :)

after i strengthen the engine with all the above am i to see any if at all performance improvement before i turbo up :)

thanks anyhelp would be appreciated, also do i need to strengthen anything else before i consider a turbo :)?

Link to comment
https://www.sau.com.au/forums/topic/65657-project-make-gts-go-hard/
Share on other sites

  • Replies 40
  • Created
  • Last Reply

Top Posters In This Topic

Building an engine for NA performance and building one for turbo'd performance are worlds apart.

It would be cheaper to junk the RB25DE and buy a tired RB25DET to do up when the time comes.

In fact it would be cheaper to just sell the NA car and buy a turbo one.

So much is different, Brakes are inferior on the NA for a start.

because i can :) lol i didnt ask for u to comment on how much it wud cost, becoz i know how much more expensive it is, im doin it coz i got money and i can, and coz i wanna be proud of wat ive done to it to get it going harder, and not just chuck in a rb25det in there spend 6grand on mods and achieve the same results ive already achieved in my other skyline, and PTR33 i already have a gtst, i told u its my project, wat part of that do u not understand? if i wanted ur advice on saving money i wud have asked. all i wanted to know was wat else i need to strengthen, not to have some geek comment on how much it would cost, because they are tite

negative cun ts, geez how easy is it to chuck a rb25det in there and do that up, but wheres the fun in that mate? are u my financial advisor or something? i dont wanna take the easier and cheaper option, coz eventually u'd have to do a strengthen internals anyway, this way ive already strengthened and wont have to worry for a while, as for breaks and suspension ive got spare brembos and stock gtr suspension :)

because i can :) lol i didnt ask for u to comment on how much it wud cost, becoz i know how much more expensive it is, im doin it coz i got money and i can,

well guy a GTR and make that go hard.

would be safer for all concerned. And less of a head f*ck

If money is not a problem,

Use a RB30 bottom end and aftermarket crank girdle to allow for big rev's, forged rods, forged pistons and a ~12:1 comp ratio.

RB26 head with a set of really big cams, a nice porting/polish as you will need lots of rev's and as much airflow available to make the power you are after.

After all 225rwkw is around 270-280kw at the flywheel.

Thats a lot of power to be had from a little 2.5 or even 3ltr.

Not sure if it can be done to be honest.

A 3ltr n/a needs 100% VE @ 9000rpm to flow ~360hp at the flywheel which is ~270kw at the flywheel.

A 2.5 n/a with 100% VE needs almost 11,000rpm to flow that same amount of air.

Thats a lot of frequent rebuilds. :)

yeah ive been reading about that it seems really hectic, rb30 bottom end rb26 head been done very nicely by a guy in victoria it think it was he was getting sumwhere around 850kw but thats wit the biggest of hks turbos (single turbo) full worked internals and all, very nice indeed, im not looking for that much power but will definately do some research and see wat can be done. gotta carefully plan this out, slowly work it up etc

ta for the info cubes :)

as Cubes said go for an RB30DE

if you want N/A power you need bigger capacity and lots of revs

i was going to build a twin cam high comp RB30DE

aparently it could have made 250-300KW@W depending on the fuel and tune.

i think thats the way to go if your serious about it

grab an RB30 black and an RB26 head and start building it

IMO its an awesome project good luck with it :)

nice!! doin my research, just need some price figures on the rb30 bottom end etc? yeah its a nice idea, hopefully it works out will, gonna be slow as lol, work 5 days a week spend 2 days on the project LOL :)

because i can :) lol i didnt ask for u to comment on how much it wud cost, becoz i know how much more expensive it is, im doin it coz i got money and i can, and coz i wanna be proud of wat ive done to it to get it going harder, and not just chuck in a rb25det in there spend 6grand on mods and achieve the same results ive already achieved in my other skyline, and PTR33 i already have a gtst, i told u its my project, wat part of that do u not understand? if i wanted ur advice on saving money i wud have asked. all i wanted to know was wat else i need to strengthen, not to have some geek comment on how much it would cost, because they are tite

Here's some advice for you pal

GO FU(K YOURSELF

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

    • I mean, I got two VASS engineers to refuse to cert my own coilovers stating those very laws. Appendix B makes it pretty clear what it considers 'Variable Suspension' to be. In my lived experience they can't certify something that isn't actually in the list as something that requires certification. In the VASS engineering checklist they have to complete (LS3/NCOP11) and sign on there is nothing there. All the references inside NCOP11 state that if it's variable by the driver that height needs to maintain 100mm while the car is in motion. It states the car is lowered lowering blocks and other types of things are acceptable. Dialling out a shock is about as 'user adjustable' as changing any other suspension component lol. I wanted to have it signed off to dissuade HWP and RWC testers to state the suspension is legal to avoid having this discussion with them. The real problem is that Police and RWC/Pink/Blue slip people will say it needs engineering, and the engineers will state it doesn't need engineering. It is hugely irritating when aforementioned people get all "i know the rules mate feck off" when they don't, and the actual engineers are pleasant as all hell and do know the rules. Cars failing RWC for things that aren't listed in the RWC requirements is another thing here entirely!
    • I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
    • Yes they do. For some maybe. But for those used the most by abusers, ie Skylines, the numbers are known. The stock eyebrow height for R32/3 Skylines is about 365/375mm or thereabouts. The minimum such heights are recorded in adjacent columns in the database.
×
×
  • Create New...