Searching for Tuning parts MKB: NG

Alex0502

I am currently looking for tuning parts for my Audi Coupe MKB: NG

I am particularly interested in information for an increase in displacement to 2.5L or 2.6L.
Is there a company outside of Germany that offers conversion kits or someone who has already done it and can help me?
Is there anyone who sells a 3-flute exhaust manifold or knows a company where a manifold can be bought for little money?
It has become very expensive in Germany to buy anything for this model when it comes to tuning.
Things that used to cost 200€ are now sometimes over 1000€
It would also help to get websites from other countries where parts can easily be bought, e.g. from scrap yards.

Many thanks in advance

Ivanovich-ukr

Alex0502
Напишіть ваші побажання до двигуна.
Збільшення об’єму=це збільшення ходу поршня=зменшення R/S=зменшення обертів двигуна.

Alex0502

i don't quite understand the question, but the displacement of this engine (and all other 5-cylinder engines) can be converted to 2.5l using a crankshaft from the 2.5l TDI from the audi a6 c4. this crankshaft has a stroke of 95.5mm.
Due to the longer stroke, however, I need different pistons so that there are no emissions.
until now i know that i need all this
Crankshaft 074105019E
Connecting rod and piston from VW AQY, remove piston top 1,8mm.
a light aluminum flywheel
have everything balanced (should be very important for a 5 cylinder)
tuning exhaust manifold for 10V head or the original 3-flow manifold.
Plan cylinder head for a compression ratio of 10.8:1 and sport camshaft with more lift
A 200 cell metal cat

it would be nice if i could find it cheaper, in germany everything together is 2000-4000€
and only on parts no additional work from third parties

Alex0502

I did this list in german, thats the translatet version from deepl.

Parts list for a 2.5L NG conversion.
The stroke extension is achieved by a 95.5mm crankshaft stroke. These crankshafts were mainly installed in diesel engines. Here is a list of the engine models. -Vw T4 MTK: AAB, AJA, ACV, AUF, AXL and AYC -Audi 100, A6 C4 MTK: AAS, 1Z, AAT, ABP, ACV
The pistons and connecting rods can be removed from these engines VW: Golf4, Bora, New Beetle
Skoda: 0ctavia, Fabia
MKB: APK, AQY, ATU,AEG, AZJ (All 2.0L 85kW models) Blevel can also be used from NG but must be machined. It is recommended to use the piston as it is plug & play and even lighter.
If you want to spend more money, you can also use tuning rods
with the dimensions 144mmx20mm. e.g. H-Shaft Plevel.
The engine block must be bored out to 83mm and checked for free movement of the crankshaft drive.
Further recommended conversion measures.
Edit cylinder head_ (edit air ducts, camshaft with adjustable camshaft sprocket).

Head gasket from 7A
take
Enlarge exhaust paths (200 cell catalytic converter, fan manifold, 2.75" exhaust system, work on exhaust bridge parts, possibly use 2.0 upper part for
more torque.
7A oil pan (soli slightly better oil cooling. (an oil cooler is recommended) Conversion to a freely programmable control unit (Megasquirt, InventLab) Lightened flywheel (TTV Racing)
If you want to use the extra Nm, you can use a different gearbox The DHF achieves 117KmH in 5th gear at 2500 rpm The AXG achieves 117KmH in 5th gear at
2500rpm 81Km H
With the DHF transmission, a speed reduction of approx. 10000 rpm can be achieved in 5th gear.
The gearbox was used in the A4 B5 1.9TDI where a torque of 225Nm to 235Nm was achieved, depending on the version.
A 2.5L NG is specified with an additional output of 20-30%, so it would have between 163-176PS and 228-247Nm. Quattro owners cannot use this gearbox.

Alex0502

Has no One Parts ore Shops for this type of Parts?
Some Interiour parts an some Maintnance parts are Welcome Too.

theob

Alex0502

Use 5 Zylinder Audi Block with 83mm Zylinder.
The Crankshaft from VW t4 2.5 Petrol because its balanced better than the tdi one. I used 20V Rots becuse lighter and better (144 x 20). You can use any Postons with 83mm but you need to check the compression height because of the 95,5mm Crankshaft. And they need a 20mm Piston Pin. The pistons are the most expensive Part but i saw some from a Suzuki AN 400.Burgmann S 1999-2006 (compression height 25mm) they are like 60€ per piston on Ebay. For example
Normal: Crankshaft: 86,40mm (i think depent on Motor i have a 2.0E) Piston compression height: 35,3mm, Rods 144mm
86,4 + 35,3 + 144 = 265,7mm
Modified:
95,5 + 25 + = 144 = 264,5mm
But the compression ist different because of the flat Design from the Suzuki Piston and the inlet Design from the Normal pistons.
Excuse me if i have someting wrong iam not a Expert.