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Garrett Medium Frame Gtx Turbos

SimonR32

By SimonR32,
in Engines & Forced Induction

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whatsisname
whatsisname

Polished up pretty good if I do say so myself [emoji4]

FineLine
FineLine

Who gives a toss how it looks if it meets the performace criteria. I hope they wax garretts arse to the point where garrett actually starts doing some real r&d and giving customers something bette

whatsisname
whatsisname

The GTX3584RS will support roughly 850-880HP on a 3.0L (maximum rpm of ~7500-8000) at a PR of about 3.1-3.3 No chance of getting 1000HP out of it, not unless it can be done at a PR of 2.75 and even th

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AngryRB Grand Master

AngryRB

Posted
Posted (edited)

How would a GTX3076 go with a 0.63 rear housing ( external) assuming it had either water/meth or E85??

assuming it had 22psi, would it be a fail or quite good?

Edited by SliverS2
scotty nm35 Grand Master

scotty nm35

Posted
Posted

How would a GTX3076 go with a 0.63 rear housing ( external) assuming it had either water/meth or E85??

assuming it had 22psi, would it be a fail or quite good?

You have the perfect housing, don't change it to the .63 or you will have more issues with det than you have now.

I doubt your engine is that coated in carbon that the compression would have been bumped, Can you get a scope down there for a look? If it is just drop the head off and clean it up, if its not there are some serious issues with your setup Mark.

AngryRB Grand Master

AngryRB

Posted
Posted

You have the perfect housing, don't change it to the .63 or you will have more issues with det than you have now.

I doubt your engine is that coated in carbon that the compression would have been bumped, Can you get a scope down there for a look? If it is just drop the head off and clean it up, if its not there are some serious issues with your setup Mark.

Im starting to think its to do with the tuner, he didnt take very long, most of it was done within an hour, on the graph its only holding 16psi and you'd think he would of said, "mate, there only mild cams, you got some issues with leaks somwhere", it even stalled on him on the drive home, i think fix up this leak and possibly change the wastgate spring for a 1bar spring and even replace the resonator and then retune with E85.

34GeeTeeTee Grand Master

34GeeTeeTee

Posted
Posted

How would a GTX3076 go with a 0.63 rear housing ( external) assuming it had either water/meth or E85??

assuming it had 22psi, would it be a fail or quite good?

My standard GT series made good power at only 21psi with .82 rear and full boost is 3800 or something.... So no need for smaller rear I don't think...

scotty nm35 Grand Master

scotty nm35

Posted
Posted

how long would it take to clean the motor if your running ethanol? or would that matter if your running ethanol?

Mine had a little carbon on the pistons, a quick squirt of gasket stripper cleaned them right up. Its a 150,000k engine so it should have been fairly caked.

The ethanol wont ever ping with a good tune and it's cheaper to run than 98 now the price dropped. (United) Shame the only outlet in Qld is Warwick, how close are you?

BMYHOE Proficient

BMYHOE

Posted
Posted

How well did it hold boost in the high rpm?

Did it drop off towards redline?

It used to drop off too 18psi by red line, tuner said if we could hold boost up top it would crack well into the 400's..

AngryRB Grand Master

AngryRB

Posted
Posted

Mine had a little carbon on the pistons, a quick squirt of gasket stripper cleaned them right up. Its a 150,000k engine so it should have been fairly caked.

The ethanol wont ever ping with a good tune and it's cheaper to run than 98 now the price dropped. (United) Shame the only outlet in Qld is Warwick, how close are you?

Warwick? im pretty sure theres some close by , well 40mins away at kessels rd mt gravatt which is on the way to the city anyway. :yes:

That would be from the pump, so is it right in saying the tuner will tune it not on the egde to account for if the ethanol content varies?

scotty nm35 Grand Master

scotty nm35

Posted
Posted

United is at Warwick.

Ethanol variation isn't a problem, even 10% variation would hardly change the afr's. I guess I have no worries with it as I bought a wideband, perhaps you should lash out $200 on a gauge too if you decide to go with e85?

Every tune is rich on boost, how much so depends on what your tuner is comfortable with. The Jap tuners love 10:1 on petrol with shitloads of timing, here around 12:1 and a less aggressive timing map is the norm. Either of these tunes should have enough overhead for a fair amount of variation and it should never ping anyway. Just make sure your tuner has e85 experience (although most would by now.)

I'm running 19-20:1 on cruise at the moment with no adverse effects, no knock and good exhaust temps. Try that with petrol, it wont run well and you would f*ck your engine fairly quickly I assume.

FineLine Grand Master

FineLine

Posted
Posted

Mine had a little carbon on the pistons, a quick squirt of gasket stripper cleaned them right up. Its a 150,000k engine so it should have been fairly caked.

The ethanol wont ever ping with a good tune and it's cheaper to run than 98 now the price dropped. (United) Shame the only outlet in Qld is Warwick, how close are you?

You need to get out more.

Caltex goodna

caltex springfield

caltex yamanto

Caltex goldcoast (suburb escapes me)

Caltex upper m Gravatt

All carry Eflex. I fill up at the yamanto outlet regularly and have used most of the others.

Plans are underway for a major increase in outlets, A new plant is being built in north qld right now.

Once completed you will see a major increase in the number of outlets.

FineLine Grand Master

FineLine

Posted
Posted

any word if this major increase will stretch to NSW?

Nation wide from what I can glean.

The plant is definitely under construction as we speak. A friend has a supply contract for parts for the new truck fleet delivering cane to the plant when it opens.

GTScotT Grand Master

GTScotT

Posted
Posted

That is freaking unreal. More or less the only issue I have with moving to ethanol is its availability.

If its more readily available in my area and on the way to wakefield I would happily retune my shitbox to run it.

Anyway, GTX bla bla bla.

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