-7/9s Or -5s Garretts

[XGTRX]

Seriously, go for a drive in different setups, best way to decide, all this tech analysis, dyno graphs mean nothing until you experience it on the road. Don't waste your time analysing dyno power runs, mph down the quarter mile is what tells you what power your making nothing else.

[sultanaz]

I always was a massive fan of the -9s on paper. but i went in a car with the t51z which is like the equivalent to the -5s and i loved them aye.. So torque and good response too.. Stock motor, just cams and gears.

[XKLABA]

T517Zs ? I to an a fan of this turbos

going for a drive to see how someone's turbos go is pointless really as the responsiveness and outright power of the turbo is dictated by supporting mods as much as the turbo it self, so unless you can go for a drive in several cars where only the turbos are different ( including tuner ) then you can not really compare them

I have been if cars with -5s that are more responsive then others with -9s

[Ants]

Seriously, go for a drive in different setups, best way to decide, all this tech analysis, dyno graphs mean nothing until you experience it on the road. Don't waste your time analysing dyno power runs, mph down the quarter mile is what tells you what power your making nothing else.

this ^ is probably the most relevant post in this thread full stop.

T517Zs ? I to an a fan of this turbos

going for a drive to see how someone's turbos go is pointless really as the responsiveness and outright power of the turbo is dictated by supporting mods as much as the turbo it self, so unless you can go for a drive in several cars where only the turbos are different ( including tuner ) then you can not really compare them

I have been if cars with -5s that are more responsive then others with -9s

acknowledging that setups will usually be different amongst most cars the logical thing to do would be to try and find a car that has / most likely have a similar setup that you want / will have.

[XGTRX]

T517Zs ? I to an a fan of this turbos

going for a drive to see how someone's turbos go is pointless really as the responsiveness and outright power of the turbo is dictated by supporting mods as much as the turbo it self, so unless you can go for a drive in several cars where only the turbos are different ( including tuner ) then you can not really compare them

I have been if cars with -5s that are more responsive then others with -9s

So what you do is go to a reputable workshop with the runs on the board..ask them if you can they can take you for a drive in some of their setups in your price range and pick the one your happy with, get them to build it..pretty simple really.

[XKLABA]

So what you do is go to a reputable workshop with the runs on the board..ask them if you can they can take you for a drive in some of their setups in your price range and pick the one your happy with, get them to build it..pretty simple really.

haha yeah so I'm gonna walk into a workshop that has never met me and say I'm think of building my GTR, do you care to drive me around the block in a dozen different cars ( GTRs no less) you just happen to have sitting around so I can get an idea of what I might want

no better then that how about you take me for a thrash in a customers car or even let me thrash it a bit cause I need to drive it to feel it for myself

I know if I left one of my GTRs that I just drop $20k+ on at the tuners and come back to find he had been take people for joy rides I'd be more then a bit pissed off

what reputable work shop would actually do that, if you know of one let me know and I'll make sure not to take my car there

what you do is develop your car step by step till you get it to a point where you are happy with it cause really how do you know what you want from your car till you have experienced it on a regular basis where you can say I want more or I've gone to far or it's perfect as is, which you can't do from a 5-10min drive around the block, then you also learn what mods give what gains

depending on what experience you have from previous setups you have had (if any ) you will have a good idea for a starting point and where you want the car to be and what you want to do with it

[XKLABA]

having read this thread in its entirety over the last 24 hours.. i have a few comments.

firstly: people need to fking read a thread if they are going to post on it.. there must have been 30 times the question is asked "are GT-SS the same as -9's" when it was answered 8 pages earlier..

secondly: its close minded to beleive that just because all you want is instant response in a car and that someone else is dumb for not agreeing with you, or will regret not going that option down the track. people are different. peoples tastes are different. and its their right to decide what they like.. maybe it hasnt occured some that there are people who own a fast car who enjoy the rush when boost kicks in hard at 4.5-5k and they want that in their daily, because thats what they like. And they're prepared to put up with a bit of unresponsiveness. Its their prerogative to do so.

further; by saying "that setup is just going to get you to lose your license" is not exaclty a valid argument. so will doing 60 in a 50 zone, if you get caught enough times. pretty well every car on the road has the capacity to have you lose your license if you drive like a tool. Maybe the owner takes the freeway home from work and hauls ass up to 100 in second on the on ramp, and thats how he deals with the stress of life. who knows.

rant over.

im still undecided between -9s and -5s for my turbo replacement, after my tune with r32 N1s which are very lazy (max boost around 5k) they need to go! and i figure since im used to them taking their sweet ass time to come on perhaps -5s are the go for future upgradability higher top end and bearable lag. it just seems to me that there needs to be a set to bridge the -5/-9 gap..

on a side note has anyone ever used twin 2860rs's? their flow map looks like it has a more usable spread then the -5's with slightly lower peak flow.

Dan

really, I think this is probably the most relevant recent post so far

how can you know want you actually want from your car with out being able to live with any given setup for any given time, which is why I say you should build your car step by step till it gets to a point your happy, always making sure want ever mods you do will cover any possible future mods, ie don't put 3" exhaust if you are going to possible need a 3.5" at a later point, that is just an example before anyone jumps on me about how much a 3" can support

[Marko R1]

The simple and logical way to approach the right turbo choice is to work back from the power u want to achieve, if you want 300kw go for X turbo, 350kw is Y turbo and 400kw is Z turbo...not rocket science imo

[XKLABA]

The simple and logical way to approach the right turbo choice is to work back from the power u want to achieve, if you want 300kw go for X turbo, 350kw is Y turbo and 400kw is Z turbo...not rocket science imo

this, go through the dyno results thread find the smallest turbo that regularly gets the power you are after and grab it, that way you get the power you want with the best response

the only drama I have tho is how do you figure out how much power do you want ? building it step by step till you're at a point you are happy is the best way I can see

[XGTRX]

haha yeah so I'm gonna walk into a workshop that has never met me and say I'm think of building my GTR, do you care to drive me around the block in a dozen different cars ( GTRs no less) you just happen to have sitting around so I can get an idea of what I might want

no better then that how about you take me for a thrash in a customers car or even let me thrash it a bit cause I need to drive it to feel it for myself

I know if I left one of my GTRs at the tuners and come back to find he had been take people for joy rides I'd be more then a bit pissed off

what reputable work shop would actually do that, if you know of one let me know and I'll make sure not to take my car there

what you do is develop your car step by step till you get it to a point where you are happy with it cause really how do you know what you want from your car till you have experienced it on a regular basis where you can say I want more or I've gone to far or it's perfect as is, which you can't do from a 5-10min drive around the block, then you also learn what mods give what gains

depending on what experience you have from previous setups you have had (if any ) you will have a good idea for a starting point and where you want the car to be and what you want to do with it

Yep..that's what I have always done for the last 20 years and when they know your serious about it they will usually be more than happy to call a customer to take you for a drive. And if I got a called I would be more than happy to help out a my workshop owner and potential customer. But anyway not here to argue with anyone. If some wants to do a base all there decision on graphs and maps then all good but I think experiencing a setup is only way to know whether to a particular set up is good for you or not.

And I said nothing about someone else taking your car for a thrash.... don't know where you got that from...geeez

[XKLABA]

Yep..that's what I have always done for the last 20 years and when they know your serious about it they will usually be more than happy to call a customer to take you for a drive. And if I got a called I would be more than happy to help out a my workshop owner and potential customer. But anyway not here to argue with anyone. If some wants to do a base all there decision on graphs and maps then all good but I think experiencing a setup is only way to know whether to a particular set up is good for you or not.

And I said nothing about someone else taking your car for a thrash.... don't know where you got that from...geeez

that said if I was at my tuners and he had a serious customer and I didn't think he ( the potential customer) was a douche I would be happy to take them for a drive but how much can you learn from someone else driving you around the block, every thing feels different in the drivers seat, but I'm not pulling the car out of the shed and driving all the way over there just to take a stranger for a happy lap

seems to me from the posts I've seem from you all you want to do is argue

if you know what your looking at you can get a very good idea from a dyno graph but that's not what I said, I said find the smallest turbo that regularly gets the power you are after from results people have had in the dyno results thread, and if they have 1/4 mile times with mph you can get am even better idea, ET is an idea of setup and response while mph is a good idea of power to weight

you said go to a reputable workshop and get them to take you for a run in some of their different setups, now I don't know where you get your car tuned but I'm yet to see a workshop that has various setup GTRs sitting around that are not customers cars, so what exactly are they suppose to take you for a drive in

[XGTRX]

Just f**k off..use common sense and you know what I meant..dyno graphs mean nothing compared to experiencing a car. End of story..if you pull yourself over a dyno graph and compressor map then you would suck your own dick getting out of a car that you love..that's the difference.

Now this is the most relevant post in the whole thread

[Piggaz]

Just f**k off..use common sense and you know what I meant..dyno graphs mean nothing compared to experiencing a car. End of story..if you pull yourself over a dyno graph and compressor map then you would suck your own dick getting out of a car that you love..that's the difference.

Now this is the most relevant post in the whole thread

You're back again. Oh goodie!

Mick knows nothing about setups, cams, turbos and what ever else? Well to date he has run a time knocking on 10's with standard turbos, with another car that has a stroker and larger turbos. Both setups have been based around response.

You seem to waffle on over and over about rubbish without producing anything substantial to go off. Let's see your own car. Post up

specs, sheets, times and results.

So far, all I've seen is the magical 2.6 sound waves push the car forward. A car can only rev as fast as it's accelerating, unless the clutch is slipping unless you have some Einstein formula which works against the normal way of science and physics.

[XGTRX]

Got a new gearbox yet with all that massive torque...oh yeah you two are the gods of the 28 and 26/30s so everyone else's opinions are invalid....get over it you aren't the only ones with fast cars.....stop sucking yourselves off.... Stop trying to shoot people down because they want to help other guys out...f**kin egos on this forum is f**kin unbelievable...f**kin grow up

[Piggaz]

Lol.

I'm not the one telling people to "f**k off" on a public forum, swearing and carrying on like a pork chop. But whatever.

[XGTRX]

Go and sneeze at your car again so it breaks something else

[Piggaz]

Go and sneeze at your car again so it breaks something else

.

[GTRsean]

My GTX2860's are hitting full boost too far up in the RPM range. What do I do

Went from a 11.6@122MPH with unigroup tune with stock cams.

To: 12.4@116MPH with Godzilla tune with Tomei 260 B's. Lost mojo somewhere!

Why?!

Oh, I'm going to go back stock cams and fit my BY Engineering brass bearing cage modded -5's BTW cos I can.

[Piggaz]

My GTX2860's are hitting full boost too far up in the RPM range. What do I do

Went from a 11.6@122MPH with unigroup tune with stock cams.

To: 12.4@116MPH with Godzilla tune with Tomei 260 B's. Lost mojo somewhere!

Why?!

Oh, I'm going to go back stock cams and fit my BY Engineering brass bearing cage modded -5's BTW cos I can.

Bigger ain't always better eh.

It'll be very interesting what the overlay is, let alone what it is on the street. Your setup after I drive it from UE reminded very much of my RS setup, just pushed back a few hundred RPM. Having said that, it was still on pump, so hard to compare apples to apples.

[Chris32R]

My GTX2860's are hitting full boost too far up in the RPM range. What do I do

Went from a 11.6@122MPH with unigroup tune with stock cams.

To: 12.4@116MPH with Godzilla tune with Tomei 260 B's. Lost mojo somewhere!

Why?!

Oh, I'm going to go back stock cams and fit my BY Engineering brass bearing cage modded -5's BTW cos I can.

When do you see full boost on the road with the GTX2860s?

Hard to believe that you went backwards installing Type Bs with those turbos.

Maybe the Godzilla tune was a lot safer than the one done with unigroup

Edited February 5, 2014 by Chris32R