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R33 Gts-t Turbo Recommendation

islade

By islade,
in Engines & Forced Induction

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islade Rising Star

islade

Posted
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Hi guys,

I've currently got a KKR560 turbo on my R33, running at the limit of my stock injectors getting 220rwkw.

I'm planning to get Nismo 555 injectors and a Z32 AFM and a full retune of my powerFC, Gavin Woods said he would tune for 270kw as it's stock internals.

I'm sick of how laggy the car is, I swear I don't get full boost til 5000rpm, before that it doesn't have much, that's what i get for choosing such a cheap turbo :rofl:

Anyway, I had a good look through the Rb25 dyno results, but found that everybody's setups were so different, that I couldn't really compare, so I thought I'd just ask and get an opinion.

My aim is around 275rwkw. What's the most responsive turbo to do this, as that is my goal.

Alternatively, if there is a much more responsive option, that will only get me to 250kw, i would love to hear about that, or if there is a equally-laggy 300kw option, that would be good too!

Once i've got the suggestions, I can do my usual forum searching and googling and see if it's what i'm after

Thanks guys!

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Duncan Grand Master

Duncan

Posted
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but isn't the thing stopping you getting to 270kw your injectors, not your turbo?

I run a kkr480, it made 250kw @16psi, also injector limited.

sounds like you have the right size turbo for your target. but yes an old style bush bearing turbo will always be 500rpm laggier than the ball bearing equivalent. that's why the BB one is between 2 and 5 times the cost.

islade Rising Star

islade

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Yea, the turbo could easily boost me to 300kw, i am positive of that :rofl:

That was my original plans, z32 AFM, injectors and a retune with current turbo to get 270, gav said that would be easy, and the most power i should run with stock engine

Then i realised how laggy it already is, and if i'm spending all this money on a tune and parts, it's already > $2000, so maybe I should get a turbo i actually like?

If we are only talking about 500rpm difference, that's definitely not worth it, i was under the impression that it would be alot more responsive than that?

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

If you want just the turbo - GT3071 without question.

The KKR550 sadly (as you've found), its not the most responsive turbo :rofl:

They make power, yes, however they don't do it with decent response that you would get from a better designed (and more expensive) turbo.

Simon-S14 Grand Master

Simon-S14

Posted
Posted

what boost tho? the 3076 will do same power and response times... but less psi needed to make same power.

Ive had both type of turbos on rb25's so bit of experience with them.

My 3071R was a AVO or ATP style rear housing to bolt up to skyline dump. mounted lowmount and made 280 rwkw on 20 psi.. i then ran cams and made same power on 17 psi and spooled earlier.

currently have 3076 but with garret rear and ex gate, full boost at 3500 and makes 310 rwkw on 17-18 psi, stock cams.

islade Rising Star

islade

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I'd definitely prefer internal wastegate if possible, so much easier to install and i feel like there is less chance of me getting defected...

Obviously I'd check out SAU sponsors, is there anywhere else i should be looking when trying to find prices for HKS and Garrett turbos?

You guys have been so helpful, thanks alot! I was expecting a spamming of "do a frikkin search" or the like :thumbsup:

Isaac

Simon-S14 Grand Master

Simon-S14

Posted
Posted

depending on your budget i wouldnt worry about a 2nd hand HSK turbo. just grab a new garret and set it all up nicely and it will be a good thing.

you can get the 3076 with garret IW also.. this would be a good turbo if you wanted to retain the internal gate

geraus Mentor

geraus

Posted
Posted

I think i might be getting a 3071 as well, im over my bush-bearing highflow! like what you guys said to me 2 years ago! "your always gona want more power" so now its to get a bigger turbo!, Also the 3071, how big is the rear on it?

STATUS Grand Master

STATUS

Posted
Posted
but isn't the thing stopping you getting to 270kw your injectors, not your turbo?

I run a kkr480, it made 250kw @16psi, also injector limited.

sounds like you have the right size turbo for your target. but yes an old style bush bearing turbo will always be 500rpm laggier than the ball bearing equivalent. that's why the BB one is between 2 and 5 times the cost.

not exactly.

But i agree compared to the kkr stuff there are far more responsive gear.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
i'd go a 3076 with a .64 rear to be honest. will spool the same as a 3071 and make more top end power. can be lowmounted on stock manifold also.

How can a turbo with larger wheels spool the same as that of a turbo with smaller wheels?

RBceffy25 Rising Star

RBceffy25

Posted
Posted

I would have to say, bang for buck, go a hypergear high-flow, G3 profile and power-up option. Good for around 280rwkw+. Go to the Hypergear site and also the Hypergear thread on here (SAU) and check out some dyno printouts and compare them to other similar setups. As far as useable power go's - for a street application - they are pretty hard to beat when you consider response and all that stuff. Also, considering they are a thrust bearing CHRA they spool nearly or just as quick as the garret equivelant (GT 3071). The proof is in the dyno read outs. They will never hold power to redline due to the Nissan housing(s) used, however, used in conjuction with R33 box and diff ratio's i can see this kind of set-up being very formidable on the street (outright power is not always everything)

Otherwise if you have deep pockets go a HKS (like a GT-RS or GT-sports kit) or Trust (something like a TD06S-20G). I have seen some very responsive results with these turbos on dyno sheets.

blaikier33 Enthusiast

blaikier33

Posted
Posted
I would have to say, bang for buck, go a hypergear high-flow, G3 profile and power-up option. Good for around 280rwkw+. Go to the Hypergear site and also the Hypergear thread on here (SAU) and check out some dyno printouts and compare them to other similar setups. As far as useable power go's - for a street application - they are pretty hard to beat when you consider response and all that stuff. Also, considering they are a thrust bearing CHRA they spool nearly or just as quick as the garret equivelant (GT 3071). The proof is in the dyno read outs. They will never hold power to redline due to the Nissan housing(s) used, however, used in conjuction with R33 box and diff ratio's i can see this kind of set-up being very formidable on the street (outright power is not always everything)

Otherwise if you have deep pockets go a HKS (like a GT-RS or GT-sports kit) or Trust (something like a TD06S-20G). I have seen some very responsive results with these turbos on dyno sheets.

dont most of the hypergear stuf like the atr43 renge use .70 a/r comp cover. what size is the standard one

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