Jump to content
SAU Community

Considering A Aftermarket Turbo For A R34 Gt-t

Gazzilla

By Gazzilla,
in Engines & Forced Induction

 Share

Recommended Posts

Gazzilla Experienced

Gazzilla

Posted
Posted

Hey lads.. Im really thinking hard about getting a new Turbo for my R34 GT-T, their seems to be so many to choose.

But i dont know what would suit an R34 the best.

I dont plan to run stupid amounts of Boost, id like to go a maximum of 1bar tops and maybe short bursts of 1.1bar.

Ive been trying to find HPI mags with articles on R34 GT-T's, but to no avail.

I dont want to get anything thats huge either, as to reduce Turbo lagg. So what would you guys recommend I look at?

cheers.

Gaz

gtt23 Enthusiast

gtt23

Posted
Posted

have a flick through Rb25 Turbo Upgrade, All Dyno Results might give u a better idea different results people are getting with different turbos.

i run a garret t3076r which is a lowmount with internal wastegate.

i find it to be pretty responsive however other bits n pieces will need upgrading to make the most of it. (am aiming at 1.4 bar)

if you only plan to run 1bar however you may get away without some of that.

i'd have a chat to some workshops and get their opinions then do some research based from their recomendations.

ultimately the more honest you are with what u want from it in the first place the less dissapointed you will be in the long run.

good luck with it.

Birnie Veteran

Birnie

Posted
Posted

Yeah, search around, I'm sure there was someone asking this exact question about 1 week ago, almost identical title.

Anyway, check the Dyno thread like already suggested and remember R33 turbo upgrades = R34 turbo upgrades.

Same same.....

Cheap options are 2nd hand following :

HKS2530 : make 1 bar fine - Robo's has a thread showing around 230rwkws and loved it (at the tme)

HKS2535 : Probably more suited to RB25 as better top end, only slightly more lag.

GCG highflow, i would say close to HKS2535, not sure which is better but so close it prolly doesn't matter.

Cheap new :

Slide highflow, heaps of peeps have em.

Pricey new:

HKS GT-RS - i won't one !! but $2300-400(?) for new but that's the whole kit delivered from Japan.

great for 240-290 rwkws i believe and super quick spoonin'

GCG highflow new, around $1750 exchange i think in the group buy section?

Good luck.

Pauly33GTS-t Veteran

Pauly33GTS-t

Posted
Posted

Go get yourself a Hi mount manifold with external wastegate fitment, 250~,

get an external wastegate ~300-600 depending on what you buy,

get a Garrett GT3076R from slides or soemwhere cheap, ~1800 or so,

get a computer after that, with bigger injectors and a bigger AFM,

then be happy with ur brand new car pretty much.

If you want stealth mode,

get a GT30R hybrid with IW, 1,800-2000 or so,

keep you stock low mount manifold,

get a cheap but good manual boost controller,

set it to 9-10psi and keep it there until you find money for other stuff.

Birnie Veteran

Birnie

Posted
Posted

No offence Pauly, but seriously, was that your 1st turbo upgrade?

I just did my own HKS direct fit job which would have been marginally harder than a GCG highflow direct swap out and man, what a headache. But only cause i couldn't source 1 particular $6 part! Held me off for over a week ! Haha. And mainly cause Pirtek didn't know thier own parts! Had a pic of it too and they still didn't know what it was. Thing it, it was a pic of a pirtek part ! Sheeet...

Although the next time around it will be heaps easier as it won't be so 'new' to me.

Pauly33GTS-t Veteran

Pauly33GTS-t

Posted
Posted (edited)

Yes it was.

I blew my turbo after an exhaust install which I accuse of foul play, then I decided... hmm... get a stock one, or do what I was gonna do in 6 months anyway. So I bought a GT30R turbo and havent looked back, now I need new injectors, afm and ECU, and most probably splitfires.

Theres nothing unnessesary about that for my target power of 250kw.

BTW, I just paid 700 dollars for a metal cat with 700CFM of flow and a customised dump pipe with a screamer attachment, and I wasnt gettin my money back, so I had ATS make me a kit that utilized the GT3076R compressor wheel in the RB25 housing (after being max hiflowed), and its been excelent so far.

The GT30's are great turbos and are, I think, a great replacement for those looking to see ~ the 260kw mark after they have finished engine modifications

Edited by Pauly33GTS-t
Birnie Veteran

Birnie

Posted
Posted

Freegan hell! Good work dude .

Sounds like you know what you are doing

...i don't, haha but I'm getting there.

Aiming for 250 aswell but that will be the limit of the hks2535, I think the GT30's can push way more can't they? As in 300rwkws?

sinistaGTR Grand Master

sinistaGTR

Posted
Posted (edited)

yes gt3040 can push well over 300.....thats my pick. But you have to know what sort of power goal you have in mind. Like are you after 230, 250, 280, 300, 350 etc there are also other mods such as cams etc etc, what mods do you have atm. its not always about how much boost you want to run its more how much power you want to make, and with your driving style whether you want ultra response or dont mind a touch of lag for that awesome rush of the bigger turbo. Also what sort of budget are you on, you have to think new turbo means in most cases new inj, new afm and in most cases a new dump pipe and a tune.

Edited by sinistagtst

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kapr
      RB20DE NEO smallbox clutch.

      By Kapr · Posted

      For once a good news  It needed to be adjusted by that one nut and it is ok  At least something was easy But thank you very much for help. But a small issue is now(gearbox) that when the car is stationary you can hear "clinking" from gearbox so some of the bearing is 100% not that happy... It goes away once you push clutch so it is 100% gearbox. Just if you know...what that bearing could be? It sounding like "spun bearing" but it is louder.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
×
×
  • Create New...