Look what happens to a 1.6tdi when you strap in a turbo from a VAG 2.0tdi CR170 !!

https://m.youtube.com/watch?v=U9zgCXDfZ7s

I see what you mean,

it sounds even more like a canal boat, only its a fast canal boat.

Notice how the video doesn't show anything below 3,000rpm. Id imagine low end driveability will be pretty bad on a setup like that. Anyone can make power but keeping it useable and driveable is key imo.

I can see the headlines now....

 

turbo from a 170bhp engine on a different engine gives almost 170bhp

 

:wonder:

Notice how the video doesn't show anything below 3,000rpm. Id imagine low end driveability will be pretty bad on a setup like that. Anyone can make power but keeping it useable and driveable is key imo.

 

What I was thinking.

 

Like the RR graphs that get clipped and start at 3,000rpm.

What I was thinking.

 

Like the RR graphs that get clipped and start at 3,000rpm.

One of my pet hates with some tuners - why not let the people see the full story? Because if they did, questions would get asked!

Maybe the smaller turbo off the cr140 would give a more all round package?

Maybe the smaller turbo off the cr140 would give a more all round package?

Possibly, and if they've literally just changed the turbo (as opposed to had to swap injectors) then it's headline figures wont be too short of what the 170bhp unit is achieving. Its still a mismatch though in terms of engine capacity/turbo sizing though so low down response would be inferior to the original setup, let alone the original turbo and a decent stage 1 remap.

Can anyone say... "turbo lag"!?

 

I can see the headlines now....

 

turbo from a 170bhp engine on a different engine gives almost 170bhp

 

:wonder:

 

The main difference is that one of the engines is 400cc smaller than the other!

 

So the point here is that you can get the same power from a smaller engine.

 

Phil

Can anyone say... "turbo lag"!?

 

 

The main difference is that one of the engines is 400cc smaller than the other!

 

So the point here is that you can get the same power from a smaller engine.

 

Phil

But we dont expect the same level of usability and drivability when we do this, do we?

Can you get the same power from a Smaller Engine.

 

VW got the Same Power from a 4 cylinder 1390 cc petrol Engine as from a 2792 cc V6 VW Engine by fitting a Supercharger & Turbo Charger.

& 

now they get the same power from the 1390 cc Twincharger as the 1800 cc VW engine with just a Turbo.

 

The Diesel Engines are going down in Cylinders & Capacity, and getting the same or better power than the larger capacity ones.

Its progression.

eg

The 'New Fabia' will have a 1.4 TDI diesel  engine as used in other VW's instead of the current 1.6 TDI

& it is to be producing the same or more output. (or maybe less, and less emissions, and hopefully less noise.)

 

It is also lots to do with Mapping when it is the Same Engines as the 1.6 or 2.0 litre as being covered in this thread..

 

george

Edited 10 September, 201411 yr by goneoffSKi

But we dont expect the same level of usability and drivability when we do this, do we?

I guess not. Whenever I've moved to a larger turbo there's always been a compromise down low. The KO4 setup with Shark performance mapping is probably the best in terms of benefits and drawbacks in this respect as they spent many many hours just working on the low end spool for me. The benefit is obviously going to be performance which is seen higher up the rev range. Imo, performance tuning usually involves a compromise somewhere along the line. Its one thing I've fallen foul of in many of my previous tuned cars but managed to avoid with my Yeti.

If tuned correctly I don't see why a 1.6 TDI can't fully utilise the extra boost/flow from a 2.0 turbo compared to a 1.6 turbo.  I mean I'm using a turbo from a 3.0 TDI WITH a bigger compressor wheel and I have only marginally affected the bottom end power - still picks up well from 2000.

If tuned correctly I don't see why a 1.6 TDI can't fully utilise the extra boost/flow from a 2.0 turbo compared to a 1.6 turbo.  I mean I'm using a turbo from a 3.0 TDI WITH a bigger compressor wheel and I have only marginally affected the bottom end power - still picks up well from 2000.

...as does mine but ultimately it still isn't as good as the original turbo in that respect. In my case the OE IHI turbo would provide max torque at 1500rpm, the K04 moves this up the rev range slightly.

Yeah.  When you want to tune something, generally that tuning comes higher in the revs at the sacrifice of low down power.

Yeah.  When you want to tune something, generally that tuning comes higher in the revs at the sacrifice of low down power.

Diesels soon seem to rev out quick enough anyway dont they.

Is that one of those insurance friendly Eco turbos?