First set of turbo's

[R32 TT]

does anyone know whether the 2560 that pnblight is talking about is the same as the gt2860r 707160-5?

2560's

http://www.horsepowerinabox.com/HPIAB2/category12_1.htm

2860's

http://www.turbobygarrett.com/turbobygarre...0R_707160_5.htm

(sorry if someone has answered this.....but i couldn't find it)

if so, does anyone know the price from gcg? or are racepace still selling them?

<{POST_SNAPBACK}>

Speaking to TurboTech over here in Perth, it would seem that the part numbers starting with 707160 are indeed the GTR type flange. There are 4 versions.

707160-5, 707160-7, and I can't remember the other two off hand. (I think they may be -9 and -10, but don't quote me)

If you got to www.turbobygarrett.com they only mention the -5 and -7.

Note that on this site, it refers to them as 2860r.

But as Pete will tell you, his are stamped 2560r (still with 707160-5 stamped on them also)

Now, in Turbotech's parts list, the 707160-5 and -7 are also referred to as 2560r, not 2860r

However, there is a place on the Garrett website which mentions that they have a new naming convention in place. Here is a quote from that page:

The biggest change related to the nomenclature is this: units which utilize a 53mm turbine wheel (as measured at the inducer) are now referred to as "GT25" frame size, while units employing the slightly larger 53.85mm turbine wheel are now referred to as "GT28" frame size.

For those familiar with our product range, this means that the unit formerly known as "the GT28R" (part number 466541-1) is now in the GT25R family. More specifically, it is now a GT2560R model.

You can find this at:

http://www.turbobygarrett.com/turbobygarre.../gt_basics.html

I would say that this is what is causing the confusion between the 2560r/2860r.

The important thing is, it is the 707160-x range that we are talking about and bolts up to the GTR flange. Someone correct me if I am wrong, but this is how it appears to me.

It would also appear, if you get out the specs on all these turbos that the -5 and -7 Garretts are very similar spec to the HKS2530 and GT-SS respectively.

So! I am thinking of a pair of 707160-7 for myself... Anyone reading this tried them? Or am I pioneering them? (its the one time I don't want to be first....)

[lwells]

R32 TT: You raise an interesting point. The -7 seems to be very similar to the GT-SSs.

TURBINE:

Wheel = 53.85mm

Exducer = 42.40 (??? Can someone confirm?)

Trim = 62

A/R = 0.64

COMPRESSOR:

Trim = 56

Inducer = 44.46

Exducer = 59.41

A/R = 0.42

TURBINE:

Wheel = 53.85mm

Exduce = 42.40

Trim = 62

A/R = 0.64

COMPRESSOR:

Trim = 55

Inducer = 44.59

Exducer = 60

A/R = 0.42

It looks to be within a poofteenth of the GT-SS's to me: in fact how much of that is just more accurate/different measurement?. Amazing, it was staring me in the face.

Edit: Does anyone (Andrew?) have access to the maps for the Garrett 707160-5? They still aren't on the Garrett site.

[R32 TT]

It looks to be within a poofteenth of the GT-SS's to me:  in fact how much of that is just more accurate/different measurement?.  Amazing, it was staring me in the face.

Edit:  Does anyone (Andrew?) have access to the maps for the Garrett 707160-5?  They still aren't on the Garrett site.

Yeah - I agree. So a pair of GT-SS's might be had for quite a lot less that a pair of GT-SS's if you know what I mean.. <damn should have kept that to myself!>

I must admit I don't quite know how to read the turbo maps. I'd be interested to hear what your thoughts are and what is it that you are actually looking for when you read them...

Mr lwells - what turbos are you currently running? ..or are you still deciding?

Cheers,

Matt.

[R32 TT]

(Andrew?) have access to the maps for the Garrett 707160-5?  They still aren't on the Garrett site.

This help? GT2860RS ?

<see attachment>

[lwells]

Yeah - I agree. So a pair of GT-SS's might be had for quite a lot less that a pair of GT-SS's if you know what I mean..  <damn should have kept that to myself!> 

I must admit I don't quite know how to read the turbo maps. I'd be interested to hear what your thoughts are and what is it that you are actually looking for when you read them...

Mr lwells - what turbos are you currently running? ..or are you still deciding?

Cheers,

Matt.

<{POST_SNAPBACK}>

Thanks for the map. Now I just need to read up on turbo tech a bit so I can understand it

I am just running stocko R32 GT-R turbos at the moment. I have to pull them off shortly to fix a head-to-turbo-manifold leak so I am installing some goodies at the same time. That got me thinking... and I figured given the propensity of the stocko turbos to let go, and the few horror stories of reversion, its probably reasonably cheap insurance to change them let alone the other advantages of steel wheeled bb turbos and 15 odd years of development.

However the rest of my car is very stock and I don't have the money to upgrade all the support systems at the moment. I want to try and find a turbo that gives good performance -- average power is what I care about -- on a stock car but also has some headroom for future modifications (cams, cam gears, injectors, etc). The GT-SS seems about right but the HKS price is too rich for me.

[tk80]

can you get away with using all the factory lines with these 2560's/2860's? trying to budget what's it's going to cost to have a set installed.....

a days labour......what else?

by the way, R32 TT mentioned there was 4 versions in the 707160 range. If they are the same turbos (2560 = 2860), there are 3 versions on horsepowerinabox....-7 rated at 320hp, -5 rated at 350hp, and -10 rated at 400hp. Still not sure what the 4th is.

[R32 TT]

can you get away with using all the factory lines with these 2560's/2860's? trying to budget what's it's going to cost to have a set installed.....

a days labour......what else?

by the way, R32 TT mentioned there was 4 versions in the 707160 range. If they are the same turbos (2560 = 2860), there are 3 versions on horsepowerinabox....-7 rated at 320hp, -5 rated at 350hp, and -10 rated at 400hp. Still not sure what the 4th is.

<{POST_SNAPBACK}>

I'll find out what the four are for you and post them up. (will just need a couple of days). For me, the -5 and -7 were the only two I was interested in since the others were bigger than these and I am after low down response, mid range etc... But give me a couple of days and I'll find out for you.

(or perhaps someone else reading this already knows and will beat me to it?)

[R32 TT]

Thanks for the map.  Now I just need to read up on turbo tech a bit so I can understand it 

I am just running stocko R32 GT-R turbos at the moment.  I have to pull them off shortly to fix a head-to-turbo-manifold leak so I am installing some goodies at the same time.  That got me thinking... and I figured given the propensity of the stocko turbos to let go, and the few horror stories of reversion, its probably reasonably cheap insurance to change them let alone the other advantages of steel wheeled bb turbos and 15 odd years of development.

However the rest of my car is very stock and I don't have the money to upgrade all the support systems at the moment.  I want to try and find a turbo that gives good performance -- average power is what I care about -- on a stock car but also has some headroom for future modifications (cams, cam gears, injectors, etc).  The GT-SS seems about right but the HKS price is too rich for me.

<{POST_SNAPBACK}>

You and I have a similar line of thinking then.

Except my front turbo did let go just a couple of weeks ago. I already had made the decision to get new turbos, but they aren't in the country at the moment and so I guess it was just bad luck... (oh and the fact the stockies had been driven to 1.2 bar previously! It wasn't me. Honest.)

I'm looking at the same thing as you. Average power under the curve rather than peak hp. I figure since the stock turbos running 1.1bar got me a 12.3, then GT-SS equivalents, and better dumps etc will get me in the high 11's. Fast car in anyones book - and should be good on the tight twisty stuff.

I have a few mods done on both intake and exhaust. ECU and injectors are done too. Stock cams though. Just waiting for the turbo's. I've had the cast iron Exhaust manifold, dumps and front pipes ceramic coated this week, so I am a little bit excited (and nervous about the possible ceramic in my motor)

Pity you're not in Perth to check it out, but the 707160-7 is what will be going on my car at this stage. So hopefully they aren't far away. (Garrett doesn't seem to have a solid ETA). Stay tuned and I'll let you know how they go,

[R32 TT]

by the way, R32 TT mentioned there was 4 versions in the 707160 range. If they are the same turbos (2560 = 2860), there are 3 versions on horsepowerinabox....-7 rated at 320hp, -5 rated at 350hp, and -10 rated at 400hp. Still not sure what the 4th is.

<{POST_SNAPBACK}>

All righty! Took me more than a couple of days... but heh... <_<

707160-9/707160-10 specs according to TurboTech:

Hi Matt

your turbo's are about 2 weeks so I have heard. The other GTR turbo's are GT2560R p/n 707160-9 comp wheel 45mm Trim 55 a/r 0.42 turbine 42mm trim 62 a/r 0.64 no actuator supplied 375hp. GT2560R p/n 707160-10 comp wheel 51mm trim 52 a/r 0.60 turbine 47mm trim 76 a/r 0.64 actuator supplied 450hp.

Regards

Ian

Hmmm... can anyone say "HKS GT-RS" ? (707160-10)

The -9 looks like the odd one out. Appears to be similar spec to the -7. But I am not sure of the other differences? It was suggested to me by someone else that only the -5 and -7 actually have the bolt on GTR format. Where as the -9 and -10 would need to be adapted. But this is totally second hand info - so don't quote me on it. If anyone knows better let us know.

[discopotato03]

That compressor map shown above is not applicable as its tip height is greater than most of the other 60mm compressors . It also comes std with a .60ARR T04B compressor cover - in old speak its known as the GT28RS . It does not use the "compact style" GT28 exhaust housing intended for RB26's .

Cheers A .

[lwells]

That compressor map shown above is not applicable as its tip height is greater than most of the other 60mm compressors . It also comes std with a .60ARR T04B compressor cover - in old speak its known as the GT28RS . It does not use the "compact style" GT28 exhaust housing intended for RB26's .

Cheers  A .

<{POST_SNAPBACK}>

Hey disco,

Sorry I haven't replied to your PM: I've been extremely busy.

Do you know how or where one could secure the correct map/s?

[RACESPEC]

Hey Guys

The GTR Upgrade as we like to call it, 707160-5 is in on MONDAY (5 sets reserved for us).

I have enquired about the -7, at this stage no confirmed ETA or whether they have been ordered.

the 707160-10 has the specs of the GTR-S.

Disco, you are quite right there, the 707160-5 is basically a GT28RS, but with the bolt on setup for the RB26, using all standard lines, manifolds and dump pipes.

We have them in next week and have presold 3 sets already, so if you want them and are willing to place a 50% deposit

RACESPEC - GTR GT2860R

You can get them for $2600 DELIVERED

Thanks

Tarek

RACESPEC

sales@racespec.com.au

[Tommyk]

just bumping this thread to see how you guys are going ?

[R32 TT]

just bumping this thread to see how you guys are going ?

<{POST_SNAPBACK}>

Well - I can tell you I just had one pair of 706160-7 arrive.

They are apart at the moment while I get the exhaust housings ceramic coated.

Hopefully I would say they'll be back on the car and running within the next 2 weeks. (hopefully).

I have thrown some photos up, along with some pics for comparison of the stock turbos and some of my manifolds after being ceramic coated. What you can't really see is that the exhaust housing is noticeably larger.

I'm sure its something everyone has probably seen before, but here they are anyway. If anyone wants something specific photographed on them just let me know,

http://dsl-202-72-159-143.wa.westnet.com.a...e/Turbo%20Pics/

Matt

[ali-turko]

ey buddy i have a gtr and all i have is exhaust and 2 airpods and i ran a 12.6 and stuffed up 4th gear!! so basically stock soo yer

[R32 TT]

ok well - a bit more information you might find interesting.

Sure the Garrett are cheaper to buy than the HKS equiv.

Prices for 707160-7 and -5 have been hitting around the $2500-$2700 mark.

Nengun prices for HKS GT-SS have been around the $3200 mark I believe.

I have however just bought the studs/nuts and gaskets to got with the 707160-7's that I bought - as none of these come with the turbos.

Try $450 for the studs/nuts (18 all up) and $170 for the gaskets.

From what I understand - the HKS 'kit' has all of this included?

So now, the HKS/Garrett pricing looks much closer to a dead heat.

Either way - when buying your turbos - ask if all this comes with them or not...

[Beer Baron]

Well - I can tell you I just had one pair of 706160-7 arrive.

They are apart at the moment while I get the exhaust housings ceramic coated.

Hopefully I would say they'll be back on the car and running within the next 2 weeks. (hopefully).

I have thrown some photos up, along with some pics for comparison of the stock turbos and some of my manifolds after being ceramic coated. What you can't really see is that the exhaust housing is noticeably larger.

I'm sure its something everyone has probably seen before, but here they are anyway. If anyone wants something specific photographed on them just let me know,

http://dsl-202-72-159-143.wa.westnet.com.a...e/Turbo%20Pics/

Matt

<{POST_SNAPBACK}>

nice work. I dunno if it's just me but they look identical to the R34 GTR N1 turbos... very interesting

[GFunk]

i don't know if anyone has noticed but there is nothing in the " FORCED INDUCTION QUICK REFERENCE GUIDE" under RB26. This would be a good thread to put there for people trying to decide what turbos to put on there gtr. just an idea????????

[lwells]

Try $450 for the studs/nuts (18 all up) and $170 for the gaskets.

<{POST_SNAPBACK}>

Studs/nuts should cost you about $100 max. Don't buy Nissan genuine, they charge a fortune (as you seem to have found out ) for no reason at all. They are fairly standard bits and cost about $3 a pop aftermarket. Gaskets are expensive unfortunately: you can buy some aftermarket ones if you want (not turbo --> dump though).

If its any consolation, if you ordered the HKS GT-SS's and get pinged with customs/duty you could be up for more like $3800.

[R32 TT]

Studs/nuts should cost you about $100 max.  Don't buy Nissan genuine, they charge a fortune (as you seem to have found out ) for no reason at all.  They are fairly standard bits and cost about $3 a pop aftermarket.  Gaskets are expensive unfortunately:  you can buy some aftermarket ones if you want (not turbo --> dump though).

If its any consolation, if you ordered the HKS GT-SS's and get pinged with customs/duty you could be up for more like $3800.

<{POST_SNAPBACK}>

Hey there Lucien, yeah - I thought maybe it was a bit over the top.

My mechanic thought about it for a bit, and then just decided to go genuine. He doesn't do Skyline's much (more of a V8 background) and perhaps just didn't want the stuff around of getting/finding the right parts? But he did say to me that he had seen some aftermarket ones fail and that given the labour to replace - felt it was better to go genuine in this case.

Are they any different really?? I don't know. But oh boy the price was an unwelcome surprise...

I can't wait until this fiasco is over. My Credit Card has taken a hiding...