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#15
by
R.O.R-2.0
on 27 May, 2012 20:08
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I think it will work ok. I think it's a bigger VNT than I would want to run on a 1.6TD and so it will likely be a bit laggy with the potential to make more boost than I'd want to run. It will still probably spool faster than a T3 or K24 and flow better overall. It's all a guess, tho, so slap it on and report back. 
Is that a boost can actuator on there? If so, then I'd stick it on and run it and see how it performs like that.
no, its a vacuum actuator..
i have a wastegate can (opens at about 7-8psi) that im going to modify to take place of the vacuum actuator, and im going to run that for a while, and if it proves to be less than an ideal way to control the vanes, then i will change it out for a proper setup that is controlled by boost, and throttle position..
really, im not looking for more than about 25-30 psi boost.. may have to turn my pump down to limit the amount of max boost this thing makes..
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#16
by
R.O.R-2.0
on 27 May, 2012 20:19
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so now we can experiment. Let me know your failures and I will let you know mine...maybe a success too.
im planning for no failures, only success..
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#17
by
Powered by Spearco
on 27 May, 2012 20:48
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Kevin, don't even try to run that turbo with a fiber gasket!
You have to pull the head to install the new studs, so why not just slap on the MLS gasket and be done with that issue?
I'll get the specs for it and let you know.
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#18
by
RabbitJockey
on 28 May, 2012 04:36
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my opinion is that it should work really well. i would expect similar results as what people get with a tdi, except slightly less due to less displacement. the vnts with the 56 and 60 mm at the end of the number are a little better, but this one is still good. i think i might be able to get a compressor map too, do you know the inducer size on the compressor? or you can measure it, and we'll see how it looks. i think you can expect good results but even with looking at the compressor map you won't know till you try it. if it were me, i would just make the vnt only sensitive to boost... but thats just me.
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#19
by
RabbitJockey
on 28 May, 2012 06:59
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Ok i checked on Garrett's site it looks like there about 4-5 different 52mm compressor wheels once you measure the inducer well know which one the best for u I believe is the 52trim don't know the inducer size in mm tho
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#20
by
R.O.R-2.0
on 28 May, 2012 14:03
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my opinion is that it should work really well. i would expect similar results as what people get with a tdi, except slightly less due to less displacement. the vnts with the 56 and 60 mm at the end of the number are a little better, but this one is still good. i think i might be able to get a compressor map too, do you know the inducer size on the compressor? or you can measure it, and we'll see how it looks. i think you can expect good results but even with looking at the compressor map you won't know till you try it. if it were me, i would just make the vnt only sensitive to boost... but thats just me.
i modified a wastegate can last night. its now a vane actuator.
vanes are fully open by 10-12psi...
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#21
by
R.O.R-2.0
on 28 May, 2012 14:33
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Kevin, don't even try to run that turbo with a fiber gasket!
You have to pull the head to install the new studs, so why not just slap on the MLS gasket and be done with that issue?
I'll get the specs for it and let you know.
even tho this SHOULD be a very good flowing turbo, its still going to stress my head gasket that much?
never had problems with a fiber gasket so far, even up north of 35psi, with an ass load of drive pressure..
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#22
by
theman53
on 28 May, 2012 15:02
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Kevin, don't even try to run that turbo with a fiber gasket!
You have to pull the head to install the new studs, so why not just slap on the MLS gasket and be done with that issue?
I'll get the specs for it and let you know.
even tho this SHOULD be a very good flowing turbo, its still going to stress my head gasket that much?
never had problems with a fiber gasket so far, even up north of 35psi, with an ass load of drive pressure..
Yep. This will flow more than the turbos you have had in the past. You will have more air to compress too.
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#23
by
R.O.R-2.0
on 28 May, 2012 15:36
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Kevin, don't even try to run that turbo with a fiber gasket!
You have to pull the head to install the new studs, so why not just slap on the MLS gasket and be done with that issue?
I'll get the specs for it and let you know.
even tho this SHOULD be a very good flowing turbo, its still going to stress my head gasket that much?
never had problems with a fiber gasket so far, even up north of 35psi, with an ass load of drive pressure..
Yep. This will flow more than the turbos you have had in the past. You will have more air to compress too.
so, this turbo has the potential to harm my engine.. GREAT!
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#24
by
RabbitJockey
on 28 May, 2012 15:41
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I think the better flow probably makes it safer, measure ur inducer lets see what u got
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#25
by
R.O.R-2.0
on 28 May, 2012 15:50
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I think the better flow probably makes it safer, measure ur inducer lets see what u got
thats what i thought too Trevor.. better flowing means less restrictions (in my mind atleast)
ill go measure the compressor wheel right now, and report back..
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#26
by
RabbitJockey
on 28 May, 2012 16:00
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I think what really hurts them is extreme back pressure because then it can't evacuate the exhaust completely so ur left with that amount of pressure in the cylinder when the intake valve opens and then it all just starts stacking the pressure, and the compressor has to fight that pressure and hg problems are inevitable. For big psi numbers it takes a bigger turbo
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#27
by
R.O.R-2.0
on 28 May, 2012 16:18
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intake side:
40mm (39.6mm to be exact) inducer
56mm exducer
and i too, believe that its extreme drive pressure that kills these engines, not extreme boost.
im really not looking for big psi.. 20-25 psi with a LOAD of efficient flow would be more than acceptable..
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#28
by
RabbitJockey
on 28 May, 2012 19:13
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That's a 2056 or 2256 then the last 2 numbers are the exducer size... But this is a good thing it's a 50 trim 56 mm wheel. So I think the gt2056 should be the same map
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#29
by
R.O.R-2.0
on 28 May, 2012 19:28
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pretty sure its a GTB2056VL..
pulled this off TDIclub, and it describes my turbo to a TEE..
volvo gtb2056vl
Compressor (6 main blades) inducer/exducer: 39.6mm / 56mm
Turbine (9 blades) exducer/inducer: 42mm / 47mm
Compressor A/R: 0.45
Turbine A/R: 0.64
so, the 56mm turbos are better?