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Garrett Gt2860 -9s

usmair

By usmair,
in Engines & Forced Induction

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usmair Mentor

usmair

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Hey guys

still deciding between -5s or -9s

There arent many results for -9s in the dyno thread so if you have them could you provide details on what kind of power you are making with them as well as any key modifications (besides all the standard crap) that you think helped you to get to your power figure.

Thanks!

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usmair
usmair

yeh most of us arent intending on going that crazy... besides the standard stuff... i'm getting cam gears to help with lag... thats about it...

sultanaz
sultanaz

I've got a r32 gtr 1994 I've got a ill list going of stuff on order + stuff I have already on the side HKS GT-SS + hks actuators , hks dumps , hks 2.5" splits to a true 3" back plus 100cell Haltec

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Don Dada Mentor

Don Dada

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I remember disco saying that out of all the turbos garrett make for hks the -9 has no modification by hks so therefore the -9 is exactly the same as the gtss minus the actuators.

Hks however use their actuators on it, so the higher tension on the spring will cause boost to come on a little earlier and might not settle at the same level as the garrett actuators.

U can also use your stock actuators on the -9 but again i haven't seen anyone who has tried it to see when and how boost comes in.....something i myself would love to see results for,with this being the determining factor of "which turbo is better" with the choice of actuator used.....something i think can be tweaked non the less using a good ebc

MrStabby Grand Master

MrStabby

Posted
Posted

+1 for Don Data and NIGTR.

Also remember the -9s don't come with actuators, and you really don't want to be using 20yo actuators on your new turbos. So, you could put HKS actuators on the then you're 100% equivalent to GT-SS. IMO You should decide between -9s or -5s based on your power goal, and go for the smallest turbo that meets that goal.

Chris32R Proficient

Chris32R

Posted
Posted (edited)

Does anyone know the price of new HKS actuators to suit?

It's crap that the -9s are the most expensive compared to the -7,-5,etc...

I have heard that -1s are the same as -9s but they include actuators. Is this true and anyone know about pricing?

Edited by HecticGTR
some_cs_student Veteran

some_cs_student

Posted
Posted
I remember disco saying that out of all the turbos garrett make for hks the -9 has no modification by hks so therefore the -9 is exactly the same as the gtss minus the actuators.

<cut>

Really? I'm pretty sure I read that the compressor wheel or something on the HKS GTSS is slightly different to the Garrett, but otherwise they are identical.

From reading the power graphs I've noticed the HKS GTSS is usually slightly close to the 330rwkw :happy:

Oh, please post up in the RB26 sticky so the info doesn't get lost.

I'm looking into the Hypergear highflow with 2860RS cores, it looks interesting but not sure if anyone besides the 300ZX guys have tried it...

usmair Mentor

usmair

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my goal is 320awkw... from reading the dyno thread it seems as though the GT-SS are def capable however not everyone is reaching that number...

A profec B should solve all the actuator problems right...

anyone know when the SS hit full boost (with cam gears)... 3.5k?

GTRsean Grand Master

GTRsean

Posted
Posted
lol ok... where did you pick yours up from Sean?

Boostin imports, but I'm sure you can get a good deal at CGC too. Basically any Garrett dealer, but shop around! :happy:

I might be using stock actuators, but may go the reinforced HKS style one's.

My R32 had R33N1's, then HKS2530's, so now I chose the -9's for the 34 to have the feeling of the N1's with almost the oomph of the 2530's for the street.

MrStabby Grand Master

MrStabby

Posted
Posted
Really? I'm pretty sure I read that the compressor wheel or something on the HKS GTSS is slightly different to the Garrett, but otherwise they are identical.

From reading the power graphs I've noticed the HKS GTSS is usually slightly close to the 330rwkw :)

Disco would have been talking about the -7s with that comment. The wheels on the -9 are the same as GT-SS.

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