Jump to content
SAU Community

How Are The Garett 28-60r -5 Turbos On A Gtr?

GTRBOS

By GTRBOS,
in Engines & Forced Induction

 Share

Recommended Posts

JAGR33 Grand Master

JAGR33

Posted
Posted
Just devils advocate here JAGR33 :)

Is fairness in comparsion then only acheived by comparing one car with itself, on the same dyno, with the same bolt ons and the same tuner?

That means even BoostR's results aren't meaningful to my car and by the same logic they aren't meaningful to my choice between 2530's and -5's given my car/tuner/dyno/bolt ons are different.

I could follow your opinion expressed as my guide but, I kinda don't know you ( I'm sure your a top bloke tho') and I can't see why you hold an answer on this subject yet. I can't see how the -5's make the 2530's look silly as yet?

I'm certainly not elevating myself to an expert here as all I did was took a little time to see if the only data we have makes a case for the -5's superiority. It doesn't but, that needn't be the end of the examination. There are a few guys like BoostR who are now offering some driving insights. I'd like to consider that worth some weight even though cars/mods/tuner are different to mine. And if we allow that sort of comparison then giving a little weight to the data we have is sensible too.

How many times do people ask questions like; "what sort of power can I expect?" "what sort of power do these turbo's make?"

The boost building thing is interesting. Would people agree that more boost building earlier is only good if it leads to the expected extra power at lower rpms?

Again from the examples we have, I see that in the 'best' examples of the 2530's both on unopened and built motors produce a better bottom end power experience than the best examples we have of the -5's. This could be due to tuning so it would be worth trying to see if it is or not. This perhaps will help guys out with -5's and other turbos if it's something fundamental. My guess is the cam timing and possibly on the built motors compression ratio/setup but, what are the specifics?

Not trying to bash the -5's here either. I'd rather like to become a believer too given they are so cheap.

I'm sure your a nice bloke too... ;)

I'm not implying that 2530's are a crap turbo, I'm saying that from my experiences mainly information that I gather from a workshop here in Melbourne that works mainly on GTR's is that the -5's are superior in how they make the power, they are more responsive than the 2530's but don't make as much top end. This workshop I'm talking about has done a lot of R&D on GTR's and what makes them go fast for mainly street and circuit, so response and low end power is the focus, so why the -5's are used and not the 2530's...

Anyway, I guess people will eventually work out whats the best turbo setup for their car, it sometimes takes 2 or 3 goes.. well it did for me!!!! :)

  • Replies 49
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

R-PWR Proficient

R-PWR

Posted
Posted

Ive had -5, hks gtss and hks 2510 hell even 2530's and I can tell you, -5's are the go in all honest if you have a good tuner you can get them to hit full boost as quick as the 2510 or even the ss (maybe a bit later but only marginal) and the power gains are a lot better than the gtss, 2530's are just laggier thats all they will make power but imho dont drive as nice as the -5's . I know 2 renowned tuners that swear by -5's and I think one of them is where you go GTRBOS if im not mistaken.

GTRBOS Mentor

GTRBOS

Posted
  • Author
Posted
Ive had -5, hks gtss and hks 2510 hell even 2530's and I can tell you, -5's are the go in all honest if you have a good tuner you can get them to hit full boost as quick as the 2510 or even the ss (maybe a bit later but only marginal) and the power gains are a lot better than the gtss, 2530's are just laggier thats all they will make power but imho dont drive as nice as the -5's . I know 2 renowned tuners that swear by -5's and I think one of them is where you go GTRBOS if im not mistaken.

well i think im gona go for the -5, the workshop i take it to is dominic at protek automotive, im very happy how he tunes my car and he has recommended me to get these turbos on my gtr, obviously he knows what his talking about and i know how he is because ive seen heaps of gtr he has built and i was very impressed but yer i think im going to go for the gt28-60r -5 tubros, that is my last choice, im nor saying 25/30 are shit but in my needs i realy think that th -5 will sit me more and im morw after circuit and 1/4 mile times not top end power or else i will just go a huge single if i want to, guys i really thank you for this, at the end of the day just didnt want no arguements here and it seemed pretty good, it seemed to be a fun thread lol but yer i think i will just go for the -5 and get my cams and injectorsd and my z32 afms installed and i should be making some nice power at all 4s,

thanks again guys,

cheers

GTRBOS Mentor

GTRBOS

Posted
  • Author
Posted
Hey yeah Im one of those high powered GT-R's hehe, anyways yeah Dom know what he's talking about, so take his advice you cant go wrong.

Cheers

Ray

omggg i think iseen ur car der last time on da hoist, they were doing something to the exhuast and you got the twin mufflers like the kakimoto twin dual system, im pretty sure that was ur gtr lol but yer dom is mad and im really happy with him, my gtr should be going there in the next week, one of my mates mohammad goes there, really really fast gtr plates are GTR800, im pretty sure u know it and also his brotheren lore goes there GTRB6 his also my mate and they are both like 10sec cars so yer hopefully i will get to that extreme butjust waiting to get full license but yer man ill carch up with ya one day man, get all the gtr's together and go for some kind of cruise lol, anyway have a good one bro

GTRBOS Mentor

GTRBOS

Posted
  • Author
Posted
Yeah for sure would be up for a cruise, mine has the twin exhaust like mo's a hks one. The car ran a 10.9 but I have sold it now, looking for an r34 gt-r :yes:

no probz man, good luck looking for a r34 gtr bro, plenty of nice 1s going around, so what you wrecken bro, u think i should just go for the gt28/60r -5 turbos, dom even thinks that the hks 25/60 are pretty good aswell but he said that the -5 are better but whats your opinion man

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

    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • RP1421
      S15 Spec R

      By RP1421 · Posted

      As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • joshuaho96
      R32 GTS (RB20DE) Injectors Replacement

      By joshuaho96 · Posted

      I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
    • perry_r33
      R34 GTR Vspec Garage Sale - All must go!

      By perry_r33 · Posted

      Pm sent 
×
×
  • Create New...