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HKS GT2835 pro s seems the go but, $$$$

GunMetalR33
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GunMetalR33 Mentor

GunMetalR33

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I have done the search thing and it seems to me that the HKS2835pros is the turbo upgrade for me. I am looking to make around 250RWKW and I have all the usual bolt on mods to do it except a turbo, Z32 & fuel pressure regulator.

I dont want too much lag, but a bit is acceptable. I like the HKS2835pros because I can go for more power in the future if I wont. The only problem is the price $$$$ they are about $4000 for the kit.

My question is, do Garrett make a turbo with similar specs that will bolt directly to a rb25det like the HKS2835pros does. Maybe the popular "disco potato (GT2835rs)", but I think its the wrong flange type...

Any other Garrett suggestions????

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Lithium Grand Master

Lithium

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I thought the "Disco Potato" is more like a parallel of the GT2530 in terms of general performance/air flow? If I wanted GT2835-type performance from a Garrett turbo, I'd probably go a GT3071R. You can get one of those in T3 flange, but need to sort out the wastegate control additionally.

GunMetalR33 Mentor

GunMetalR33

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I was thinking about the GT-RS, but you cant push it over much over 250 at the wheels on an rb25det & I would like something that can handle more just in case I get sick of 250 :D.

I currently have 210 and that got old real fast ...

But i guess if it is a lot cheaper then maybe I will have to considder it... and deal with 250 for the long haul.

GunMetalR33 Mentor

GunMetalR33

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Yes its a great turbo if u can get it jsut put one in on my vehicle very impressed. Nice kit too.

http://www.nengun.com/catalogue/product/252

Are you talking about the HKS GT2835 pro s? If so how much did it cost & what power are you getting out of it.

Cubes Grand Master

Cubes

Posted
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Grepin managed to squeeze a shade over 300rwkw (from memory) out of his HKS 2835ProS.

The trick was apparently a set of nice big cams, prior to that 280rwkw was around its limit, boost drops off. With the cams boost still drops off but obviously as a result of cams the same boost level is flowing more air. More air = more power. ;)

From memory the 2835ProS was around 2.6-3k if you import it from japland.

On the RB25 I don't think anything would match it for response and outright power.

Cubes Grand Master

Cubes

Posted
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with gt garretts under 2k youd be crazy to pay 4k for a hks unit

Depends on the power level. Why over turbo the car?

Very much like over clutching or over gearing.

A lot like the 3ltr with the stock R32 gearing. It sucks, way to short.

I'm getting my self a S13 3.9:1 before any more money is spent on big turbo's etc. What I would give to have a longer first and second gear so I can actually use the torque of the motor.

For up to and slightly over 300rwkw you can save a few $$ by grabbing a HKS 2835ProS or 3037ProS unit from japan for just under 3k imported. It bolts directly on to the manifold.

Buy a garrett item and your paying 2000 for the turbo + exh. manifold 1000 + ext. wastegate 700. 1000 for an exh. manifold.. Cheapest 'decent good quality' exh. manifolds I know of are around 1500.

$1000 or slightly less is for a cast HKS item which by all means is a very good manifold.

I wouldn't pay 4k for a hks item. Buy from nengun or greenline for under 3k.

discopotato03 Grand Master

discopotato03

Posted
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GT28RS has the T28 flange . A good option could be the Garrett GT3071R with the .68 or .87 ARR HKS T3 flanged GT30 exhaust housing sold separately . Brett at GCG says he can get them as I'm sure others can . Going this way gets you very little exhaust restriction and an efficient turbocharger . Avoid the GT3071R "wastegated " its really a GT2835R with a T28 flange .

gtst25 Proficient

gtst25

Posted
Posted

Of interest here's some pics of a 2835 pro s from sly33.

After a lot of thinking I've decided to go this turbo - just getting quotes from nengun and greenline.

sly33's getting 266rwkw@ 19psi, no cams just bolt it on.

Hell on a cold night that must be 270..

I think he said he could get more but they didn't want to push it.

266 rwkw must be pretty exciting in rear wheel drive....!

Only problem I can see with the 2835 is the exhaust housing is different - you'd have to get the kit with dump or make one yourself.

I don't think I'd like to go much bigger on the standard manifold - the engine pic here shows that there's not much room left with the 2835.

Good luck!

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