garrett gt28

[makaveli]

Hi Guy's,

I have a r32 gts-t and Ive been trying to fing out which would be a great turbo for the rb20, something thats responsive although still good on top end.

I thought of getting a hks 2540 although my budget does not stretch that far

Then I found out about the garrett gt28 thats basically half the price and said to be a similar turbo anyway. Apparently its rated at 400-450hp.

Does anyone know anything bout this turbo?

Also does it work any good with the rb20?

Thanks

Mark

[JL]

Hi Mark,

I am in the same position as you. How much is the GT28 and what is needed to be done to fit to the RB20, oil lines ect!!

P.S. Sorry I know this does'nt answer your question

Cheers

JL

[makaveli]

Thats cool man, you can see it on this site-

http://www.horsepowerinabox.com/HPIAB2/cat...ategory26_1.htm

Also you can see there are two gt28's one has a larger exhaust housing so its rated at 450hp instead of 400hp

They also run internal wastegates so I think there wouldn't be much to fitting, then I dont know that much

At least you wouldnt have to screw round wit gettin an external gate fitted.

On the web site the price is just over $2000

Mark

[JL]

Cheers Mark,

Thanks for your help,

JL

[makaveli]

No worries mate, if you find out any helpful info please let me know

Take it easy

Mark

[Jimbo2000]

Not too sure if this is what you are talking about but stumbled upon this browsing e-bay.

http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...&category=43808

[makaveli]

looks like a similar one although it says 320hp were the two gt28's a horsepower in an box say 400 and 450hp.

[bbenny]

just get a HKS2530 very responsive, and you can get a good one for about $1500 second hand all you have to modify is oil feed, water feed and water drain. get one of those silicon bends from the compressor to intercooler pipe and you are done will pull up to 340hp on an RB20.

super responsive and a sh$%load more top end.

the GT28 series on there are also T25 flanges - the RB20/25 use a T3 flange

[Roy]

I think the horespower in a box turbos are a bit of a mix and match turbo based on RPMs experiences.

Dont they use the GT30 compressor and front cover (4' bellmouths?)

[BiZzReVhEad]

Bump!!

Need info on a good Turbo for Rb20det's is the standard flange on a 32 skyline a t3? wats the best bang for ur buck is it the GT2530 ? or do u think something for around 400hp be unrealistic? aand if so wat lag would u get ? if much at all..

note: Long time browser not a poster in this fourms as im building my car and dont have a start on it yet lol

[yogi000]

From what i've heard and seen

HKS 2510 - spools faster,less top end

HKS 2530 - spools pretty damn good and good top end (allrounder)

HKS 2540 - spools later on 4500+rpm and great top end and works well with cams (good for track use)

this is all on a rb20det and all relative to each other, i'm sure u could find a greddy and apexi aswell

feel free to correct me

[Sydneykid]

Hi rocky, I like the GCG ball bearing hi flow of the RB25DET turbo, do a search there are heaps of threads on this subject.

[Minorci]

I recently purchased the 400hp version of the gt28. You need an adapter plate made up to go to the t3 flange, and you also need to bear in mind your standard dump pipe wont fit as its a 6 bolt pattern and the garret is 5.

But Morrie from hpinabox has been so bloody helpful to me, I'd recommend him to anyone. Knows what he is doing, and the adapter plate is very well made.

Haven't been able to test the turbo, as engine is being rebuilt atm, but yes it has a 4" bellmouth inlet. And also bear in the mind the wastegate spring is rated at 11.8 pound.

[BiZzReVhEad]

Im looking for street/strip use for my car . so i rekon an uneducated guess for best turbo setup on an RB20DET would be gt2530 garret highflow ? Also i am thinking of doin the rebuild for the RB20 since im an Exv8 head at heart internals are my main stay of an engine still is it viable to do a full rebuild for the amount of extra HP u get outa it ? assuming ur running a say 2.1jun stroker kit forged pistons with a gt2530 turbo . What is the comparison to that and the standard 2 litre with just the turbo and intercooler?

I am seriously thinking about putting NOS on the RB20det thats why i sorta want forgeys but 100+hp is alot im thinking i wont need a boost that big with NOS. maybe just stick with the standard internals run a 50hp jet nos system and gt2530 turbo?

Is this a realistic goal ?

I just need some feedback from owners of RB20det's or wise know alls to lemme know ,has any1 done this setup before? and wat power gains do u think are achievable. Preferably i am lookin at about 400HP at the RW .. but ill be happy with 300hp RW with standard internals and no NOS and just the big turbo kit.

Yer so theres alot more into it then wat i said i know that just give me a ruffy and ill work with it... Ive found these fourms to be a wealth of knowledge and im confident someone out there has done something like this ...

Or would it be better of just wacking in the RB25det and using that as a benchmark block?

I know most ppl will say GO BIGGER but how easy it that ... If i wanted to go bigger i woulda just got another V8 im after something else this time , any ideas would be extreamly helpful