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Hi,

I'm in need of a new turbo and want to hear some opinions. Should I hi-flow my current turbo, or should I buy a HKS GT/RS kit from Japan. I want good power but good response on the street. Obviously the hi-flow is a cheaper option so what do I get as a bonus with the GTRS? Does anyone else have these turbo's on their r34?

Cheers, Matt.

Im also looking for feedback on the GTRS when installed in a 34. It's the most likely route i'm willing to take at the moment (Slide seems to have a reasonable price), but just wanted the run down on response times and how streetable it is etc..

Also stock fuel pump and injectors should be fine at this level of modification? Currently tuned to 202rwkw at 9psi (i think its the stock actuator isn't holding boost at top end), so i suppose with a GTRS kit i could achieve around 230rwkw? Does this sound reasonable?

Mods are:

Pod

3" (to cat) -> (cat back) 4" exhaust

Hi-Flow cat

Splitfire coilpacks

Hybrid Cooler

Turbotech BC

Apexi PFC

Sorry for the half hi-jack yellow submarine. :P

-Daniel

Edited by nitestalkr
Im also looking for feedback on the GTRS when installed in a 34. It's the most likely route i'm willing to take at the moment (Slide seems to have a reasonable price), but just wanted the run down on response times and how streetable it is etc..

Also stock fuel pump and injectors should be fine at this level of modification? Currently tuned to 202rwkw at 9psi (i think its the stock actuator isn't holding boost at top end), so i suppose with a GTRS kit i could achieve around 230rwkw? Does this sound reasonable?

Mods are:

Pod

3" (to cat) -> (cat back) 4" exhaust

Hi-Flow cat

Splitfire coilpacks

Hybrid Cooler

Turbotech BC

Apexi PFC

Sorry for the half hi-jack yellow submarine. :(

-Daniel

Had a slide highflow, see my comments above :P

I'd be thinking along the lines of GTR pump and fuel reg, 480cc injectors minimum....550cc are good as with the GTRS you'll be chasing more Kw just to make use of the better flow and efficiency of the turbo :D

Boost drop on an R34....well that can plague the best of us for reasons unknown. If only it was as simple as actuators :P

GCG Hi-flows are a banger.

Same with the GT-RS

I'd just go on price at the end of the day personally. Whichever is cheaper as from what i've seen here results wise there isnt a lot between the two

Thanks for the advice guys.. Ill have to look into GCG more as i haven't really looked at what they have to offer.

The fuel system suggestions have definitely been taken on board as well.

Would still be a few months off these mods, but i guess i have plenty of time for research hey.. :whistling:

Cheers again

-Daniel

PS: Dan, So you have tried changing actuators with no luck? urgh.. This upsets me.. :whistling:

Edited by nitestalkr
Thanks for the advice guys.. Ill have to look into GCG more as i haven't really looked at what they have to offer.

The fuel system suggestions have definitely been taken on board as well.

Would still be a few months off these mods, but i guess i have plenty of time for research hey.. :whistling:

Cheers again

-Daniel

PS: Dan, So you have tried changing actuators with no luck? urgh.. This upsets me.. :whistling:

You name it, it's been changed....last ditch option is to play with the exhaust cam and see if anything can be gained there.

Someone also mentioned a HKS gt 25/40 for quick response and good top end power, has anyone used one of these before? How was it?

Steer clear of the 25/40. Poor response and no more power than the GT-RS.

If I was in your situation i would be looking into a GT3071R, very good results popping up on these forums recently with this turbo.

really up to your budget id say... pay more and get hks rs - ive seen rb25s pull 310rwkw with aggressive cams and stock internals - i think it was stock manifold also! apparently hell responsive.. mind you, i dont know much about the high flow turbo - but with those prices you cant go wrong... plus, i dont know about you but id say 260rwkw is pretty sweet for street trim..

well thats my 2cents :)

Yes HKS turbos are great turbos,but the for the money you could buy a Garrett equivalent and have money left over for lines,dump ect..

GT28RS,GT3071 or GT3076.

Reading your posts i would suggest the GT3071. As it is both responsive and if you squeeze some boost into it can produce the numbers.

But by all means if you want to spend 2K+ on a HKS turbo.....

Hey mate, i'd go for a GTRS kit if i was you, my mate Joey has a highflow from GCG, but it died on him last week, which only last him about a year and a bit, the turbo gets abused a fair abit, because he runs it on track n stuff all the time, depend what you wanna do with the car, and suit the best setup that you need.

I went from highflow to GT2535....I like the HKS turbo's very impressed, so much so I won't consider farting around with a highflow on any of my cars in future, HKS all the way :D

Dan hows your cams going? all sorted? :P

even though mines a 33....My hi-flow died and now have a GTRS being fitted, I'll post results when done :)

i saw your died hi-flow last week :laugh:

it looks dead set.. DIED lol...

Hopefully you get it back soon. :)

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