Garrett Medium Frame Gtx Turbos

[ShiftyTys]

Open up the rb25 dyno thread and hit search and put in gt3076 and gt35, gt3582 for some results to compare to

Well in that case I have no idea! heh

is it possibly they don't do many RBs and have gotten it a bit wrong?

Lee Wilson. The owner raced his own r33. They have tuned HEAPS it's like 40% Subaru, 20% skylines 20% Holden's/fords. The odd porches, rescently s couple r35s etc.make up the rest.

Dunno,it is possible its a lazy tune and has more tweaking that could benefit it..

its also possible they dont want to push his engine for fear of liability issues..

maybe the engines f**ked, did you get it checked before you threw a huge turbo on it??

how is your car set up shifty..exhaust ecu injectors etc..have u told us and i missed it??

Full 3" Turbo back. Coilpacks. Cai. Gizzmo boost controller. Sards 850cc sidefeeds. Link ecu. Fmic.

Entire engines been checked as I had a couple issus. Crank angle sensor was stuffed. Then there was an issue with the head. That was taken off and sent away and fixed. Everything else was checked. They had it for 10 weeks. I'm worried about them using an avo actuator.over a garret one.

Dunno,it is possible its a lazy tune and has more tweaking that could benefit it..

its also possible they dont want to push his engine for fear of liability issues..

maybe the engines f**ked, did you get it checked before you threw a huge turbo on it??

how is your car set up shifty..exhaust ecu injectors etc..have u told us and i missed it??

They already said they don't want to push further until I have internals.

Edited June 22, 2011 by R31Nismoid

[ARTZ]

^^this what im talking about Ash but yeah it doesnt explain the lazyiness down low i know..

How is correctly setting up boost control not wanting to push a motor?

AVO realistically have done nothing special in the world of performance for many years. Least of all anything RB related.

It simply comes down to poor boost control. Why a HD Garrett actuator wasn't used just like everyone else uses i don't know, but its the logical place to start.

Oh

So if the actuator is the problem why has he not been informed of this and how do you know it wasnt a HD one...have i missed something???

[R31Nismoid]

What controls boost?

Actuator & wastegate.

What else can it be on an internal gate turbo?

People have GT3071's come on 800-1000rpm sooner, making the same power and are reliable as it gets. Setting up boost control on purpose to be laggy is not logical at all, so if that's whats been done then I'm shocked @ such a decision as it has nothing to do with leaning on a motor.

[ShiftyTys]

Oh

So if the actuator is the problem why has he not been informed of this and how do you know it wasnt a HD one...???

when setting up the quote he specificaly said he will use a avo one "same thing" what's HD? High def?

Edited June 21, 2011 by ShiftyTys

[R31Nismoid]

Heavy Duty. Look mate sitting here posting 100 posts a night about it - it's going to fix it.

Walk into AVO, ask them why boost response/setup is poor and inform them you are not happy with it and it should be more responsive.

[ShiftyTys]

Heavy Duty. Look mate sitting here posting 100 posts a night about it - it's going to fix it.

Walk into AVO, ask them why boost response/setup is poor and inform them you are not happy with it and it should be more responsive.

If I can't come here and ask 100 questions a night what's the point of joining this community? I walke.in today. That's how o got the chart. They said they will try and adjust timing. Is it a general concensus to go to garret HD actuator.

[R31Nismoid]

Can't fix boost control with a keyboard!

Timing has little to do with how laggy your car is mate. Timing won't make as much of a difference.

If you took the reference off the actuator (holding the gate shut), i'd be surprised if you didn't see boost ramp up noticeably earlier.

Obviously ONLY do this on a dyno under controlled conditions as boost will continue to spike (as the gate is 100% closed).

[ShiftyTys]

Can't fix boost control with a keyboard!

Timing has little to do with how laggy your car is mate. Timing won't make as much of a difference.

If you took the reference off the actuator (holding the gate shut), i'd be surprised if you didn't see boost ramp up noticeably earlier.

Obviously ONLY do this on a dyno under controlled conditions as boost will continue to spike (as the gate is 100% closed).

Lol @ keyboard fixing boost issue.

Yeh ill tell them to swap to HD garret regardless.

[R31Nismoid]

Well don't just go in there saying that mate. It's just going to cost you more money.

I've never seen an AVO actuator so its possible they can put more pre-load on it.

But then given you are running an EBC, perhaps it's not quite set-up correctly either - or its both.

I'd simply be asking the question first, give them a chance to fix it or see what they say.

If it's not satisfactory in your eyes, or you just want a 2nd opinion for peace of mind - then go somewhere else. RE Customs, Sabaddin Automotive, Chequered Tuning - All 3 very reasonable workshops that have worked on many skylines/RB's lately & not too far from you/reasonably priced.

[ShiftyTys]

Well don't just go in there saying that mate. It's just going to cost you more money.

I've never seen an AVO actuator so its possible they can put more pre-load on it.

But then given you are running an EBC, perhaps it's not quite set-up correctly either - or its both.

I'd simply be asking the question first, give them a chance to fix it or see what they say.

If it's not satisfactory in your eyes, or you just want a 2nd opinion for peace of mind - then go somewhere else. RE Customs, Sabaddin Automotive, Chequered Tuning - All 3 very reasonable workshops that have worked on many skylines/RB's lately & not too far from you/reasonably priced.

I've asked. There only answer was "we will try adjust the cam gears. That's all we can do"

[ARTZ]

this isnt the old problem of garrett WG ports being to small is it.. ?

[R31Nismoid]

He would have boost spiking issues/control, not boost response/ramp issues.

[ARTZ]

yeah thats what i thought..

[HEKT1K]

http://www.skylinesa...s/page__st__680

Post 694.

That's pretty good isnt it? 3071 with. 82.

Yeah it's not bad

I can absolutely guarantee that you'll hate your car as it sits now once you've been in one that's properly set up. I advise you get it sorted mate, if that means another tuner then so be it.

[wolverine]

Well there is your answer from AVO if they think it is a cam gear issue.

Talk to one of the other shops, show them the dyno charts and see what they say.

[GTScotT]

Cheltenham is Vic isnt it? Dont you have the flagship ECU for SAU's flagship tuner?

Get your ass down to Status and tell AVO where to stick it. I have never used status but this forum shows nothing but good rep and someone punting a BIG market on poor business ethics. In lamens terms he is too well known on such a large scale to not do right by you, it would cost him too much business to get bad feedback on this forum.

Also, Hypergear may be able to sort you a better actuator for cheaper than a garrett HD item if yours falls through.

[ShiftyTys]

Well there is your answer from AVO if they think it is a cam gear issue.

Talk to one of the other shops, show them the dyno charts and see what they say.

It was more of a "that's the way the turbo s, we will see if can gears help. But it wont shave too much" can sub par actuators display issues like I'm seeing? Lazy boost response etc?

[ARTZ]

just go pay one of the other workshops mentioned 100$ for a dyno run and second opinion..

[SimonR32]

Full 3" Turbo back. Coilpacks. Cai. Gizzmo boost controller. Sards 850cc sidefeeds. Link ecu. Fmic.

Entire engines been checked as I had a couple issus. Crank angle sensor was stuffed. Then there was an issue with the head. That was taken off and sent away and fixed. Everything else was checked. They had it for 10 weeks. I'm worried about them using an avo actuator.over a garret one.

Sounds like you are getting shafted by AVO due to your lack of knowledge. Some companies will take a easy pay cheque!

[Lithium]

I had a thought regarding this - ShiftTys, how does the car actually drive from your perspective? Does it seem that laggy?? If you put it in 4th at say 2500rpm and floor it, what rpm does it reach say 7psi, then 15psi (if its not too dangerous to do that)?

Were you present for any of the dyno runs? Looking at those plots, it makes me wonder if there was a very quick sweep rate used - like 6s or quicker for a run? Thats potentially too quick to give an equal comparison to most dyno plots out there, and potentially too quick to replicate what you might experience in the real world.