Jump to content
SAU Community

Rb20 Turbo Upgrade

Rhysee

By Rhysee,
in Engines & Forced Induction

 Share

Recommended Posts

Rhysee Explorer

Rhysee

Posted
Posted

Ive tryed searching but cant find clear information.

Im buying a bigger turbo for my rb20 and im thinking either HKS GTRS or 2530.

Are these turbos direct replacement,will the stock oil/water lines fit?intake pipe fit?dump?Etc.

So can i just buy the turbo itself or will i need to buy it in a kit with oil lines etc?

Cheers Rhys

Link to comment
https://www.sau.com.au/forums/topic/303772-rb20-turbo-upgrade/
Share on other sites
ItsBoostin Enthusiast

ItsBoostin

Posted
Posted

Hey man just finished putting a new turbo on my 32.

I went for a 33 highflowed by hypergear straight swap they suppley you with a new oil line and you need to cut a bit off the heat sheild to make it fit. Also you need a 33 intake elbow for the top of the turbo.

Seems pretty good so far havent had it tuned yet so cant really give you any info there. Boost comes on about 4000 pulls hard at about 4500.

Pretty easy to install hope this helps a little.

OMGGTR Mentor

OMGGTR

Posted
Posted

Errm GT-RS man.. whole kit ur looking at like 4k.. lol heap of kesh but i guess its an awesome kit...

I'd be going with the 2530 a lot of people love these... small turbo good for like 230kw... and great response..!

trust me for an rb20 u want response...!

I'm gonna go for a 2530 myself but just gotta wait no kesh and I'm gonna love it in the GTS-4 :banana:

good luck with choosing if i had the money i might have considered the gt-rs

take care.

bcozican Experienced

bcozican

Posted
Posted

those two are direct replacement turbos bolt on to existing flanges and if you get the kit yep you get everything.

you can buy the turbo's by themselves but you are just gonna have to get lines made up separate..depends if you can get your hands on a kit or not at a good price

depends on supporting mods and power figures but a GTRS will prob be too big and laggy... i had a 2530 on with cams + supporting maxed it out 321hp (240 rwkw) all in and done by 3800rpm till redline ... went hard

OMGGTR Mentor

OMGGTR

Posted
Posted
those two are direct replacement turbos bolt on to existing flanges and if you get the kit yep you get everything.

you can buy the turbo's by themselves but you are just gonna have to get lines made up separate..depends if you can get your hands on a kit or not at a good price

depends on supporting mods and power figures but a GTRS will prob be too big and laggy... i had a 2530 on with cams + supporting maxed it out 321hp (240 rwkw) all in and done by 3800rpm till redline ... went hard

2530 droolll lol see responsive is what ur after you dont want it spooling at like 4500rpm by then (if ur in a drag) thell be long gone lol

Roy Grand Master

Roy

Posted
Posted

Even with a 2530, i have been in several RB20s with 2530s now and sure they may be making boost a few hundred rom earlier but the engines dont really start to pull until 4,500rpm. Turbos like the 2530 do give you more meat between 3,500 and 4,500rpm but when you consider that a bigger turbo will boost harder as the engine comes onto cam at about 4,500rpm the actual difference isnt that great.

So a 2530 will give you about 220-230 and nice drivability but still far worse then std (but better then any 450hp hi-flow will ever hope to match) Then you can go something bigger like a 2835 of GT-RS which will boost a few hundred rpm later, closer to 4,300-4,500rpm as the engine comes on cam. But rather then nose diving over 6,500rpm because of the tiny hot side of the turbo you can actually get more meat into the 7,000rpm rev band.

Its been a while since i looked, but the lil 2530 sort of hits peak power at about 6,200rpm and dies off. A bigger turbo (in my case TD06 which isnt too different to a GT-RS) actually hits that sort of peak power at about 6,000rpm on its way to making over 230rwkws all the way between 6,000rpm and 8,000rpm, peaking as high as 260rwkws.) It will make for the far quicker car if you can keep the thing on the boil. But if you are driving between 3,000-5,500rpm then the bigger turbo will lose out

.

So really depends on what you want. If you want ultimate performance where its harder to go quick and you have to work harder then the GT-RS will make for the quicker car. But if you want lazier, easier power that feels quicker most of the time then the 2530 is a proven, good thing

Will line a friend up in his Tomei camed RB20 with 2530 and my std TD06 RB20 for a second gear 40km/h roll on. Will be interesting. I bet he gets the jump but will be itneresting to see if i catch him up????

SimonR32 Grand Master

SimonR32

Posted
Posted

roy is right, rb20's love to rev so get a turbo that works well when they rev!!!

2530 is great turbo but really lacks the top end punch people expect now days...

i've got a bolt on hypergear turbo sitting at home which im hoping will be all in by 4300 and punch power out all the way to 8000-8500rpm :(

Wheezy Mentor

Wheezy

Posted
Posted

Was gonna mention the TD06, but didn't wanna look one sided, but Roy has seen more combo's than I, and I agree, I just wouldn't bother with one for a daily if you are planning to enjoy the turbo on the street. If you are looking at track then go for it, a great option. But hey I'm biased.

What about a 2871 style turbo with a proper garrett (t3 flanged) housing and not the machined OP6 housing? would that work out?

woodz_gtr Newbie

woodz_gtr

Posted
Posted
Was gonna mention the TD06, but didn't wanna look one sided, but Roy has seen more combo's than I, and I agree, I just wouldn't bother with one for a daily if you are planning to enjoy the turbo on the street. If you are looking at track then go for it, a great option. But hey I'm biased.

What about a 2871 style turbo with a proper garrett (t3 flanged) housing and not the machined OP6 housing? would that work out?

Also wondering about this ive got a kkr430 at the moment and its junk. Its too big and dosn't make much boost until 4500rpm.

Any thoughts about how early in the rev range say either a 3071r or 2871r would come onto boost?

Also i have a hks cast manifold with hks gate and have heard that a 3071 is suited to this set up is this true?

Rekin Grand Master

Rekin

Posted
Posted

I have hks2530 turbo.

Aim for a series 2 hks2530, they are direct bolt-on to standard r32 dump pipe (dont need a hks dump pipe) and are more responsive.

Easiest way to tell is that series 2 have 9 fins and split between wastegate

600x4482008092200010.jpg

Direct bolt-on to r32's. Doesnt hurt to have some new braided lines, but im pretty sure its fine on standard lines (do some research into this)

Rekin Grand Master

Rekin

Posted
Posted
Will line a friend up in his Tomei camed RB20 with 2530 and my std TD06 RB20 for a second gear 40km/h roll on. Will be interesting. I bet he gets the jump but will be itneresting to see if i catch him up????

I got a std 2530 if that will make the comparison better :thumbsup:

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

    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      Actually everyone on the roads was really well behaved. The only person that did any minor tailgating was a local hoon in a Turbo Focus. Unfortunately we weren't going the same way so there was no grand initial D touge battle. Lots of people pulled over and let me through. The amount of "Hey man nice car, omg skyline, nice 34 man woo" was suprising. Like really suprising. Like almost annoying. My partner was obviously surprised, she'd never seen anyone in the real world point out the car/like the car/want to chat about the car before, so to have like 3 people per day mention it was notable, I could finally say SEE? SOMEONE THINKS THEY'RE COOL. Everyone was also pretty suprised about the weather. Every day was dry and about ~13-14C. Mount Wellington had a sign that said they close the gates at 9pm and I was heading up there at about ~7:30. It was VERY apparent that conditions were getting significantly worse by the minute on the way up and down. The road on the mountain was terrible though, it's no driving road. I have various suspension related questions now. Luckily it was only about 20 minutes from where we were staying to the top of the mountain as said Google maps. We only had the 2 nights in Hobart. We went to the Farm Gate Market though which was really good - And went down to the Hastings Thermal springs/caves down there during the day. I'd definitely be up for going back again, so luckily there's a few more sights yet to see. Didn't get to do the west coast/queenstown/cradle mountain so this was supposed to be a 'scouting' trip anyway of sorts if I were to one day do/take part in/organize a more car-focused trip. As for the boat, it wasn't bad. Well it was bad, but not in the way you're thinking. We did the night trip which leaves at 6:45 (though you have to be there ~2 hours earlier) and arrives the next morning at about 6am. There is nothing to do on the ship. If you plan accordingly and bring a book/tablet/show to watch/charger you can just chill out, take some Travacalm and just sleep through it. The food there is an extremely basic buffet that costs $32 a plate, or $14 for a $3 pizza. The way back we had a travel kettle and a few different types of cup noodles and made our own tea/coffee in the room. This was a far superior way to do it. At the very least book one of the rooms with beds. I guess as we were in the off season we didn't have room mates. You get an option for rooms with 4 beds (2x bunks) or a room with just the two bottom beds. There's also some option for a deluxe queen bed but it's much pricer. We've been on sleeper trains in Asia before so we figured this is similar (and it was)
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Was that deliberate?
    • Kinkstaah
      gtr hood match gt/gtt front fenders?

      By Kinkstaah · Posted

      You just gotta be really, really, really clear and decisive with what you want your end product to be. 99% of people who want this conversion aren't "I want to run a 295 front tyre!" so they don't really need the widebody. They just want the OEM body to look a little less dumpy, so bonnet, bar, skirts job done with some camber, stretch, slam. It's when you want that, but then decide to pivot later you get big problems. See also if you're willing to get an all in one fibreglass bar, and you're willing to accept fibreglass problems like cracking the entire item on a driveway, instead of just a piece attached to the bottom, etc etc etc. Decide this all before buyin'.
    • MBS206
      gtr hood match gt/gtt front fenders?

      By MBS206 · Posted

      After @Kinkstaah debacle, I'd never want to try and get it right 😛
    • Kinkstaah
      gtr hood match gt/gtt front fenders?

      By Kinkstaah · Posted

      The hood lines up with the fenders. The front bar doesn't perfectly line up with the fenders where the wheel arch is. You have to 'squeeze' the front bar 'in' as it wants to naturally flare out and be longer on the sides. There's a few threads where people notice this when they only swap a GTR style bumper and front bar. Unless you have genuine OEM items - you may be better served getting conversion kits. There are GTT bumpers to fit GTR hoods. There are GTR hoods (non genuine) to fit the GTT bracketry. MAY  
×
×
  • Create New...