Conversion from 1Z to AFN engine + performance increase

Hello everyone.

I once contacted a tuner about increasing the performance of my 1Z engine. He mentioned that there might be a possibility to convert it to the AFN technology and then use the company's performance upgrade kit.
He suggested two options to me.
I received the following list of parts from him that are needed:

Turbocharger VNT 17
Fuel injection pump.
Control unit.
Manifolds.
Nozzle 205.
Chip.

max. 160 hp


Also, a pressure sensor is needed.
Unfortunately, I cannot provide a translation for 'wen vnt17 vorhanden Hybridlader' without more context. It appears to be a combination of German and possibly a product code or identifier. To provide an accurate translation, I need more information about what 'Hybridlader' refers to and what 'wen vnt17' signifies.
12mm pump piston with chip.
Exhaust system, group a, 63.5mm.
Nozzle 216.


Maximum 200 horsepower, depending on the Russian model.


What do you think about it?
Has anyone here ever had experience with something like that?

Best regards, Olli.

Hi,

The tuner seems not to know in which parts AFN and 1Z actually differ. In addition to the components listed, there are also smaller details such as piston crown cooling, different materials for the engine block, and other "minor" improvements.

Furthermore, the VNT17 is a variable geometry turbocharger, while the turbocharger in the 1Z is a wastegate turbocharger. The control mechanism is also different, which means there are even more parts involved that haven't even been mentioned.

I would have serious concerns about such a "tuner," especially if it's trying to extract 200 horsepower from an engine that was originally designed for 90.

Best regards,

Jan.

The engine block was the same. The 1Z engine, if I remember correctly, also had piston cooling. However, other internal components were different (I mean, those were some kind of bearings).

Best regards, WarLord.

Hi!
The main engine block is the same as in the 1Z model. However, the engines differ only in the pistons!!! I don't know what's different about the pistons, though! The bearing shells, crankshaft, etc., are all the same parts (1Z/AFN) according to the AKTE parts catalog.
Best,
Timo

'So, just the pistons?'
I'll ask him what's going on with them.
So, has anyone here ever had any experience with something like that?
Unfortunately, I don't know anyone who drives a modified TDI like that.
But thank you for the answers so far; it would be great if someone else could add something.

Best regards, Olli.

@ Olli:

What do you actually want?

The description sounds a bit like 'we can only use AFN and must...'
'First, we need to convert it.'

Best regards, Rudi.

@Pred
Don't forget the transmission, clutch, and brakes.
With a Z1 translation and 160 or 200 horsepower, you're not going to get very far.
You can then change your tires every week if your clutch or transmission can handle it.

Best regards.[/quote]

@ Rudi

I'd really like to get a bit more power out of the 1Z engine. And I want to do it without significantly reducing its lifespan. That's why this 'Umabu' thing sounded quite reasonable to me. 'Definitely better than installing a chip to extend the injection time or something like that.'

I found a link in this forum for a tuner that can increase the AFN engine's power from 180-200 horsepower by modifying various parts.
I then emailed him to ask what was possible with a 1Z. He then said that it could be brought up to 200 horsepower if it were converted to the 110 horsepower version.


I already went to the TÜV. And he also mentioned that it had disc brakes in the rear.
I haven't heard anything about the transmission yet. I thought the 1Z already had a pretty long gear ratio.

Best regards,
Olli

Hmm...

Do you want 180 to 200 horsepower?

According to my understanding, increasing the power to around 120 horsepower would be a good improvement for the 1Z engine.
and 140 horsepower with the AFN engine - with a different turbocharger and different injectors.
'It also has a 'healthy' 140 horsepower for the 1Z engine.'

Everything that follows will be quite expensive (ESP, pistons, connecting rods).
Clutch and transmission that can withstand the torque.

Best regards, Rudi.

The AFN also has a different exhaust system - and that's another 1000 euros gone.

If money isn't an issue, why don't you just buy an AFN and modify it to your liking?

m;

Well, but what does an AFN cost?
Around 4000 euros, or something like that?

That's a bit more than the approximately 1000-1500 that I'm supposed to pay.
It's not like I'm swimming in money, you know.
I just wanted to know if this would also work with the 1Z engine, since the engine itself is supposedly mostly the same as the other one, except for the pistons.
That's why I assumed that it couldn't be that much worse for him than it was for AFN. Or am I making a mistake somewhere?

[quote="Pred"]@ Rudi

I'd like to get a bit more power out of the 1Z engine. And specifically, without unduly restricting his quality of life.


Hmm, I wonder if it will still be stable with 200 horsepower.

How about selling your car and using the money from the sale, plus the money you were planning to spend on modifications, to buy a basic vehicle that would be a better starting point?
Think about the brake conversion, the exhaust system, the turbocharger, the clutch, maybe the transmission, the pistons, the ESP... what original parts are left? You quickly end up with a rolling project that you lose interest in. If you rely on your car every day, don't do this to yourself. Just the sheer number of hours of work!

Hello Olli,

It seems that your tuner and you have seriously misunderstood each other .

Nozzles: approximately 400,-.
Control unit (eBay) approximately 100,- (unless you already have an MSA15 installed; i.e. Manufacturing year from April 1996 onwards.
Turbocharger: approximately 1,100,-.
Exhaust manifold, approximately 130,-.
Software customization: approximately €400 - €1,000 (very rough estimate).

Um, that's already well over 2,000 euros now...

Best regards, Rudi.

Hi!
It's not a problem at all to get 200 horsepower out of a 1.8-liter engine!
'0.216 injectors, 12mm pump pistons, and good software! That's all you need to get 180 horsepower! For a larger power increase, you should install a different turbocharger, such as a VNT 17 or even a VNT 20. However, you'll need to modify the turbo control system for that!' The VTG turbocharger is controlled differently than a wastegate turbocharger.
Best,
Timo

@ Timo

The items you listed are also included in the dealer's offer. It would likely be possible without any problems.
'My main concern is to set it up in a way that the engine can handle it. That's why I'm reaching out to you all in this forum, because I'm not sure if my engine will be able to withstand it.' Of course, there's no guarantee that it will last.
I just assumed that with the right components, e.g. VNT 17, 0.216 inch nozzles, etc., where the wear doesn't increase significantly.
I don't want the box to fall apart!
But it seems the general opinion is that it won't work out well...

Tough decision!

Hi!
'In another forum, some people are doing this without any problems so far! A sports clutch is definitely recommended! Any tuning will affect the lifespan if used improperly! If you constantly rev the engine in the cold state with the tuning, do burnouts, etc., things will likely go wrong quickly.' That's not what the engine/transmission is designed for!
If you start it when it's nice and warm and don't use a 'kick start,' the engine will take forever to start!
The AFN would not stay up any longer!
It's ridiculous to first convert a 1Z engine to an AFN and then throw away half the parts to tune it again!
Best regards,
Timo

PS: The complete 1Z tuning package will cost you approximately €1000-€1200. Converting everything to AFN would cost significantly more!