Audi Engine Internals?

N20Vett · 01-04-2006, 08:43 AM

Alright, I am impressed how many guys are making reasonable power on these Audi's. The stage 3 and up cars look like they make nice mild daily drivers. I am thinking of doing some of these things to the 2002 S4 Bi-turbo I just picked up, but I had a few questions about the engines.

What type and style of connecting rods are in them?

What are the wristpins made out of?

What crankshaft is in these things?

What sort of main's do they have (how many bolts/studs hold the mains in, is it a fully skirted block, side bolted, etc.

Are the cylinders steel sleeved or just some coating to the aluminum?

What type of pistons is in these things?

What type/type/material of piston rings is in these things?

How thick are the piston ring lands?

What are the factory piston ring gaps?

The ring gap issue is the thing that really scares me; some of you guys are really increasing the boost and it sounds like you haven't even taken the engine apart. Anybody got evidence of ring end butting or fluttering?

SIMPPLY @ WMS · 01-04-2006, 08:53 AM

or 3rd I can sell you a fully built motor ;p

N20Vett · 01-04-2006, 09:00 AM

So let me get this straight you not know what is in the factory engine or its factory specs and you build them? Talk about shooting in the dark. How can you upgrade without knowing what you currently have?

I hope people aren't dumb enough to buy stuff from you

S4Poor@Curbside · 01-04-2006, 09:03 AM

Vtec_Killer · 01-04-2006, 09:04 AM

Arcteryx::Stock Rods · 01-04-2006, 09:05 AM

S4Poor@Curbside · 01-04-2006, 09:05 AM

3Scanner · 01-04-2006, 09:06 AM

S4Poor@Curbside · 01-04-2006, 09:07 AM

3Scanner · 01-04-2006, 09:08 AM

01-04-2006, 08:43 AM	#1
N20Vett New Member Account #: 102389 Join Date: Jan 2006 Posts: 28	Audi Engine Internals? Alright, I am impressed how many guys are making reasonable power on these Audi's. The stage 3 and up cars look like they make nice mild daily drivers. I am thinking of doing some of these things to the 2002 S4 Bi-turbo I just picked up, but I had a few questions about the engines. What type and style of connecting rods are in them? What are the wristpins made out of? What crankshaft is in these things? What sort of main's do they have (how many bolts/studs hold the mains in, is it a fully skirted block, side bolted, etc. Are the cylinders steel sleeved or just some coating to the aluminum? What type of pistons is in these things? What type/type/material of piston rings is in these things? How thick are the piston ring lands? What are the factory piston ring gaps? The ring gap issue is the thing that really scares me; some of you guys are really increasing the boost and it sounds like you haven't even taken the engine apart. Anybody got evidence of ring end butting or fluttering?

01-04-2006, 08:53 AM	#2
SIMPPLY @ WMS Audiworld Premium Sponsor Account #: 73926 Join Date: Apr 2004 Posts: 5,989	make life easy . start by buying a blown motor and do your research 2nd call me for rods / pistons or 3rd I can sell you a fully built motor ;p __________________ _______________________________________ Need performance work done on your late model Audi, or just service done? Please visit SoCal's best! Wicked Motorsports

01-04-2006, 09:00 AM	#3
N20Vett New Member Account #: 102389 Join Date: Jan 2006 Posts: 28	Your joking right? So let me get this straight you not know what is in the factory engine or its factory specs and you build them? Talk about shooting in the dark. How can you upgrade without knowing what you currently have? I hope people aren't dumb enough to buy stuff from you

01-04-2006, 09:03 AM	#4
S4Poor@Curbside Member Account #: 98473 Join Date: Oct 2005 Posts: 4,199	Uh, I'm quit sure he knows. It was a nice way of saying STFA's!

01-04-2006, 09:04 AM	#5
Vtec_Killer Member Account #: 15288 Join Date: Jan 2001 Posts: 18,344	He knows what he's doing. __________________ Sig starts here----------> Gaming forum is back up and running!

01-04-2006, 09:05 AM	#6
Arcteryx::Stock Rods Senior Member Account #: 70072 Join Date: Feb 2004 Posts: 8,197	"I hope people aren't dumb enough to buy stuff from you" you just shot yourself in the foot. __________________ Bored 2.8/9.1CR JE Pistons/034 Rods/RS4 Heads KO4's Port Polished/VAST Meth Injection RS4 Intake Manifold/Throttle Body X-1 Intake/ER IC's ASP Exhaust Heads to Tips Clutchmaster Stage IV with LWFW STaSIS Ohlins 700/800 AWE DTS Alcons 355 6 Piston BBK

01-04-2006, 09:05 AM	#7
S4Poor@Curbside Member Account #: 98473 Join Date: Oct 2005 Posts: 4,199	Stick to your Nitrous 'Vette then Mr.Castner.

01-04-2006, 09:06 AM	#8
3Scanner AudiWorld Senior Member Account #: 43051 Join Date: Sep 2002 Posts: 3,314	LOL! Man, no respect from n00bs recently here on this board. <pulls out lawn chair to watch> __________________ ================================================== ===================== ================================================== =====================

01-04-2006, 09:07 AM	#9
S4Poor@Curbside Member Account #: 98473 Join Date: Oct 2005 Posts: 4,199	<Pulls chair next to Stiller-Blitz> Can I grab you a beer from the cooler?

01-04-2006, 09:08 AM	#10
3Scanner AudiWorld Senior Member Account #: 43051 Join Date: Sep 2002 Posts: 3,314	Absolutely...grab me a Sammy while you are at it! __________________ ================================================== ===================== ================================================== =====================

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