Building AVF PD130 motor! Need Your help!

ASHIHARA

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Feb 17, 2010
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LONDON
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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
@Lofty86 the transverse turbo will not fit longitudinal angines,they are intigrated with exhaust manifold.

@bhodgkiss BV43 with intigrated manifold you can find it on skoda octavia rs tdi,passat b6 and audi a3,all with transversal engines;you find the turbo very cheap,i paid for mine 250£,but i sold my vnt with 200£,so it cost me to the end only 50£.

So,the right turbo for us with audi a4 is coming for...audi a4 and a6 :)
 
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Lofty86

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Jun 16, 2010
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Chippenham, UK
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Mk5 VW Golf 2.0 16v PD140
So is it a different part number?

I may be buyin the previously mention'd PN that was given. Is this the correct one?
Dave
 

ASHIHARA

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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
Only this one are the corect PN for audi a4: 03G145702H,engine codes BRD and BVA.
 
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Lofty86

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Chippenham, UK
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Mk5 VW Golf 2.0 16v PD140
Nice one Ashihara.

You atcually have the same set up as me (car and soon to be turbo).
B5 S4 brakes are soo much better.
What sort of power you getting with the BV43?
And did you just Fit it and remap of new clutch / IC ?
Dave
 

ASHIHARA

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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
Yep,we have the same cars :)
S4 B5 brakes are much better, 321mm brake disc vs 288mm stock brake disc,twin pot caliper.
First i have to fit a FMIC,which i will do it next week,after that i will have my custom remap;power suppose to be about 200hp(depends how talented is the tuner) and 450nm tourque.
There is no need to upgrade the clutch,because AVF clutch is quite strong(240mm clutch) and can hold more than 400nm tourque safe.
 

Lofty86

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Jun 16, 2010
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Chippenham, UK
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Mk5 VW Golf 2.0 16v PD140
Stock?? Or with the BV43 bolted on and everything else stock?

Just wondering how my engine is going to perform without a remap??
D
 

bhodgkiss

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Sep 11, 2006
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Banbury, UK
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AFN Passat Wagon
it'll be fine, you may need to adjust actuator rod length/stop screw slightly if boost reponse isn't optimal, otherwise fine to fit with standard ecu map.

I have the 312mm upgrade instead of my standard 282.5mm discs (B5 Passat) and even that is a big benefit, the 321's with twin pots must be great! How much do they normally cost second hand?? :)
 

Lofty86

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Mk5 VW Golf 2.0 16v PD140
it'll be fine, you may need to adjust actuator rod length/stop screw slightly if boost reponse isn't optimal, otherwise fine to fit with standard ecu map.

I have the 312mm upgrade instead of my standard 282.5mm discs (B5 Passat) and even that is a big benefit, the 321's with twin pots must be great! How much do they normally cost second hand?? :)
Great, thanks.

2nd hand, I paid £250 deliverd, disc's had only done 2000miles.
Head to the Audizine.com website to see what brakes you can fit and swap.

HTH.
Dave
 

ASHIHARA

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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
Stock?? Or with the BV43 bolted on and everything else stock?

Just wondering how my engine is going to perform without a remap??
D
For the moment i have only BV43 bolted on and egr deleted,no chip;next week i want to fit the FMIC and after that,in july, to do the custom remap.
The engine will perform the same with BV43 bolted on,just a bit more power to the top end.
 

ASHIHARA

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Feb 17, 2010
Location
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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
I have the 312mm upgrade instead of my standard 282.5mm discs (B5 Passat) and even that is a big benefit, the 321's with twin pots must be great! How much do they normally cost second hand?? :)
For my set up i paid 105£ for the calipers from ebay(i cleaned the rust and brake dust and i paint them),110£ for brake pads(ferodo premier mogul) and 80£ for brake discs(ate).
The calipers are bolt on,no modification required,but you need 6mm wheel spacers to fit 17-18 replica wheels;with oem wheels you don`t need wheel spacers.



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Vintz

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Mar 1, 2011
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Ireland
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Audi A4 1.9 TDI (AWX)
So, the S4 brakes will bolt straight onto a standard A4. It this the case for both front and rear? Do you have to remove/replace that guard behind the disk?
 

Vintz

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Mar 1, 2011
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Ireland
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Audi A4 1.9 TDI (AWX)
It's a B6. I know the B6 S4 brakes will fit my car. I'm just wordering do I need to remove the shield/guards? If I do have to removae them, can I run without them or do I need S4 type replacements? By this I mean the metal sheet dorectly behind the rotor.
 

Vintz

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Ireland
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Audi A4 1.9 TDI (AWX)
Evening all,

So, the BV43 is on there and the engine completely overhauled at the same time ($:($).

My car was previously remapped to 150BHP on AVB. I do intend on re-mapping it to suit the BV43 ASAP. But it will be a week or so before I get a change to do so. WIll I be OK until then with un-spirited driving?

Cheers...
 

Phill

Active member
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Nov 16, 2010
Location
UK, Wales
TDI
Octavia 110 TDi
Hey guys,

BV43's seem like rocking horse poop to track down used. Are there other bolt on options? I have an A4 running an AWX motor.
 

adamss24

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Nov 2, 2005
Location
Great Britain
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audi a4 2.5 tdi 98 quatrro 6speed
You can get hybrids however do not expect much change off 500 quid ! I would still look for a BV43 though, it's a bit more linear compared to the gt1749Va and holds a little more boost as well !
 

faboka

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Joined
Sep 12, 2004
Location
Merseyside, England
TDI
Skoda Fabia vRS TDI PD130
A see a lot of threads with people using BV43's mates to passat style manifolds. But does the BV43 with integrated manifold from the PD170 fit as a plug in play to a transverse 1.9 ASZ PD? Thinking manifold fitting to cylinder head and downpipe.
 

Phill

Active member
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Nov 16, 2010
Location
UK, Wales
TDI
Octavia 110 TDi
Hi guys,

i've gone to fit my BV43 to my AWX engine in my A4 only to find that the pitch between the bolts for the exhaust housing to downpipe are different.

Before I go down the road of getting a flange made and welded on, does anyone know where I can buy a flange off the shelf or can I use a downpipe of a BV43 equiped A4 and just bolt it on to my car??
 

ASHIHARA

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LONDON
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Audi A4 B6 1,9TDI AVF SPORT QUATTRO
Yes,looks like...;post a picture to be sure what turbo you have.
 

Phill

Active member
Joined
Nov 16, 2010
Location
UK, Wales
TDI
Octavia 110 TDi
I'm guessing that must be it. The downpipe has a different flange, the bolt pattern between the manifold and exhaust housing is slight different so I had to drill them out slightly.

I've got the turbo fitted to the manifold but now the oil return won't reach the bottom of the turbo. I need to try and source a longer one!

Will get some pics sorted shortly. :(
 

Phill

Active member
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Nov 16, 2010
Location
UK, Wales
TDI
Octavia 110 TDi
Managed to get a 'make your own' oil return kit from Ryan at Darkside Developments.

Got a downpipe to turbo gasket from Audi (Part No. 8K0 253 115 B) and i've created a cad model and drawing for a flange which i'll be getting a local laser cutters to make for me.

Will get the turbo on the car and upto a local exhaust company to get a suitable downpipe made for it then.

Will keep you upto date with how I get on, incase someone else make the same error as myself!
 

Passat1977

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Jan 1, 2024
Location
Zagreb
TDI
1.9tdi afn
I know it's an old post, but I want to assemble that engine over the winter for a maximum safe 200ps, approx. 400Nm. My thought is: ARL pistons 80.01 with an enlarged chamber to 42mm. Firad +50%. downpipe 2.5inch. Turbo 1752 or 1756. I want it to immediately increase torque at low revs like it does now with the chip. They say that the 1752 is actually a 1749vb with a 52 intake. so the spool should be the same at low revs. If I knew it could give +/-240ps. But I don't want the sea smoke to properly pass the eco test. I want it to work completely normally for everyday use and not to run wild on the highway EGT. How do I drive all day on the highway at 150-200 km/h. Yes, I forgot the larger front intercooler and the clutch. I am asking for the opinions of experienced people and not someone who has read thousands of posts like me. no offense experience is experience. Have a nice weekend.
 

tdi_my live

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Jul 24, 2011
Location
Germany
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Skoda Fabia
You can't even get the 1752 to spool as quickly as the 1749VB, let alone the 1756. The 1756 is a bad choice anyway, then the 1856 is more likely. But always with the acceptance of a later build-up of boost pressure. Unless you do without a clean lambda and can provide propulsion with too much quantity and little air.
 

Passat1977

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Zagreb
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1.9tdi afn
so they say that 1752 is essentially 1749vb, the hot side is supposedly the same, only the compressor part is 52mm. I don't drive around the city much, but smaller places have traffic lights and light traffic jams. 1749VB from golf 4 I had golf, it and it was ok. that's why 1752 is more suitable for me. I would like to achieve that the car behaves as it does now with more power of 150-200 km/h and that nothing is overloaded and that the EGT is not high. Let's say now the chip is like 170ps and 370Nm. the injectors will need to be repaired. so immediately put firad +50/80% less opening time and say lower EGT. 1749VA is now almost at maximum, so 1752 would be more ok for 200hp. Ok, 1749vb would be enough for me, but it is not available for the longitudinal engine. The pistons are supposedly stronger from ARL than from ASZ.AVF.AWX. widen piston chamber to 42mm same as low EGT. the head only new rubber bands, guides, the edges have been processed. I don't want to change the car. the engine has who knows how many actual kilometers. if I am doing a repair, just make sure that it is a little stronger and that it can withstand it without stress and that the components are heavily loaded. It's not something extreme, just a little better than the original. At least researching what they did on those engines.
 

adamss24

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Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
Bv43a cartridge in bv43 pd housings it’s a good start, it’s a decent turbo with good pickup from low down and decent transient and egt. There are also solutions for larger turbos which work better and are not stressed at all and most are plug and play ! I have solutions for gtb1756vk and gtb2056vl- both rather inexpensive and can fit in same location with adapter plates.
 
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