VT5 is on

[devonutopia]

Quick clip of how my exhaust sounds with the new turbo on. The background whistle is a new thing, and generally it does sound much more throaty.

 

[golisago]

Would a VNT20 compressor housing be an easy bolt on to a VNT17 turbine housing then?

Not a problem for someone / company who knows what there doing......just on a side note where (my partner and his chip tuning friend) are in the middle of buying a dyno meter and the company who they will be using for there turbo conversions are at the forefront of turbo design and build quality.

And yes at the moment they can simulate most high street maps out there which are available and have been for some time , but where there main market will be will be catering / live mapping for those who want turbo conversions doing or who already have it done and who have no alternative but to have it mapped in this way because of the mods they have incorporated on there car.

A couple of companies already named on this site may be using us in the near future because there tuning circumstances are far from favorable to put it mildly.

 

[FabiaTDi]

I wonder if the VT5 compressor housing would fit the VNT17 turbine/manifold?

Going to call Allards in the morning.

 

[devonmikeyboy]

I wonder if the VT5 compressor housing would fit the VNT17 turbine/manifold?

Going to call Allards in the morning.

And you seriously think they are going to tell you the design of their turbo.

 

[golisago]

I wonder if the VT5 compressor housing would fit the VNT17 turbine/manifold?

Going to call Allards in the morning.

They won't even tell those who have bought from them let a lone anyone else , but i thought i answered that question already.

The problem in using the vnt17 turbine hot side is that even if you do either a cut back to increase air flow with the wheel size of say 22mm , you end up with a wheel thats more or less the same size of a vnt17 because the vnt control ring ends up being to small and doesn't fit properly so doesn't work quite as well.

Your best off using one of the full vnt20's , the Gt2056v Gt2260v or Gt2359v and the daddy of them all the Gt2560v , and being vnt turbo's i very much doubt they will give too much lag.

Although i've had a guy reciently e-mail me saying that he'd just blown the latter of the vnt's and could he please have the spec of the waste-gate turbo my partner was using on his new setup , obviously out of the question with you guy's but they are more or less bomb proof.

 

[devonutopia]

I don't even know about my own turbo, I do know now there's an extra bit of pipework peeking out under the EGR. I think Allards have worked some serious magic with this turbo (and mine was decribed to me as a "spool up" friendly VT5, with minimal lag - I concur this )

 

[FabiaTDi]

And you seriously think they are going to tell you the design of their turbo.

No, I wouldnt expect Allard to give me specs of their turbos I am just going to ask if there is a benefit in fitting the VT5 cold side to the VNT17/VT2 hot side as an advantage over the regular VT2 hybrid.

Looking at what golisago has been saying about modifying the hot side being just as important/complimentary to the cold side, there maybe no point in doing this of course.

Another reason I wanted to know is that the VT2 hybrid uses a VNT17 modified and milled out compressor/cold side and I know other people have fitted VNT20 compressors to VNT17 turbine manifolds.
So could a milled out VNT20 compressor housng with uprated internals (e.g compressor wheel from a VNT22) work with my existing manifold?

Maybe I wont get anywhere, but I just like asking questions and to understand everything before spending my hard earned. So I'm going to ask the horse so to speak.

 

[golisago]

I think all the horse is going to say is Nay , and i would think that milling out a vnt20 comp housing so you can fit a larger comp wheel won't get you any further down the road for more power.

Its the turbine housing in this instance that needs to be changed out for a larger housing to give more air flow for more power , another reason of doing this is the enormous amounts of back pressure you get with the vnt17 housing at anything over 170hp and like i have already said even if you use a larger wheel to slightly overcompensate for this fact to give more flow , the mechanism starts to bind and not work properly giving you overboosting and surge in some cases.

 

[FabiaTDi]

Ok so it seems i'm flogging a dead horse by looking at going down the route of an oversize compressor housing and after a really good chat with Allard about the different VT options I now fully understand why.

Looking at now getting a VT2 hybrid turbo fitted by Allard after Easter. Looking for anywhere between 215-230hp.

 

[golisago]

Ok so it seems i'm flogging a dead horse by looking at going down the route of an oversize compressor housing and after a really good chat with Allard about the different VT options I now fully understand why.

Looking at now getting a VT2 hybrid turbo fitted by Allard after Easter. Looking for anywhere between 215-230hp.

Who is going to do the re-mapping for you , if we have our new Dyno setup in time can i be so kind to offer our services and live map the car for you , at a increadible competitive price you will be very happy!!

 

[FabiaTDi]

Who is going to do the re-mapping for you , if we have our new Dyno setup in time can i be so kind to offer our services and live map the car for you , at a increadible competitive price you will be very happy!!

Ok thanks thats worth bearing in mind. Have you worked with Allard turbos before?

I have a custom remap done on the rollers from Jabba at the moment so to have it tweaked by them for the new Turbo would probably be more cost effective.

 

[golisago]

As long as the tuner knows the max/peak safe boost pressure plus steady state boost pressure is this can be factored into the overall programme/map , just tell me though if your motor is either the 130hp or the 150hp say the later i would think moving up from a vnt1749 to a vnt1752 turbo not as exiting say as using a full vnt2056 that comes on the standard 2.5 V6 tdi's.

And i think to be honest i bit disapointing from what you already have 49 to 52 uumm , pearsonaly i would either use a vnt2359/60 or the vnt2259/60 which come on the BMW X5's along with something like Kerma's manifold for said turbo, you would then have the portencial of having anything from 230hp to 280hp if you can inject enough diesel .

I have just done a deal for someone with kerma to provide them with said injectors but not the standard pd race units some race+ units.

 

[FabiaTDi]

I have the 130pd, but in the Fabia vRS it is a KKK version of the VNT17 which I understand is not quite so good as holding boost as the garrett version of the VNT17.

I can always go for one of Allards bigger turbos which require the new manifold, so I am assuming that this new manifold indicates VNT20 based hot side. Maybe not.

Car is pencilled in at Allard but not decided for certain which I will be going for yet.

 

[golisago]

Ask this question of Allard "does either the vt2 or/and vt5 share the same turbine housings with the turbo that Lloyd uses to race with" or does the Vt5 use a bigger vnt housing.

 

[Red Devil]

hello,
I am new here,Ihave 2.0tdi 140ps re-maped on188ps, now I bought a turbo from 2.5tdi V6 180ps (VNT 20), what is the diffrrence between VT 5 and VNT 20??

 

[shtrumfy2k]

nobody nows
btw, i have the turbo on the car for 2 weeks now and it runs superb
the car is very powerfull and delivers the power smooth
in this weekend the re-map will be finished and i'll keep you posted on the results, a dyno would be great

the turbo was bolt-on and was fitted on the car in 4-5h

 

[basstard]

what turbo you got? the VT5?

you guys always say these turbos deliver the power smoothly but I guess that being so big, they introduce a certain lag,,, I mean it's physics,,, maybe you are ok with that cos most of you live out of town but I do mostly town driving so I need a very fast spool up for quick blasts,,,

 

[shtrumfy2k]

my turbo is hybrid vnt 18/20
belive me is very smooth, i do only town driveing and it's a realpleasure

 

[golisago]

hello,
I am new here,Ihave 2.0tdi 140ps re-maped on188ps, now I bought a turbo from 2.5tdi V6 180ps (VNT 20), what is the difference between VT 5 and VNT 20??

The difference i would think between the two is this..........if Shtrumfy2k had the vt5 upgrade and it only took 4/5 hours that would tel us that the vt5 must be a vnt17 with milled out internals because to use the vnt20 you have to use either a different manifold or an extended adapter plate for the vnt20 to fit.

Another tel tail sign will be how much higher up vnt20 sits unlike a vnt17 because of the fitment issue.....you also have to clock the vnt20 and use longer oil lines......so get this last difference if you have to clock the vnt20 the boost pipes wouldn't match/line up and would take some welding up of new pipe work to make it fit.

 

[basstard]

lisa, shtrumfy here has a 18/20 hybrid, as per post #58

how much does it take, btw, for someone with a VT5 to take a look at the turbo and see what's written on it??