Mr. Scary

I just oredered the LLtek air intake, getting rims and some exteriror styling. What is the best I can do to full this up from 300 hp?? Best barke options for 19" Rims? amy other suggestions?

Thanks, guys!

Hy Octane

Well, GIAC engine and tiptronic chips will boost you up to about 320 or so, then you can add an exhaust system which is good for about another 15-20 hp. I had the supersprint system on my 03 4.2... It dynoed at 346hp on 100 octane gas (with an internal problem I might add)...Thats about all unless you want to open her up and replace the cams with S6 ones and change the final drive ratio.. Also, running on the hy-est octane in your area helps a bit too..

BTW. The cold air intake is useless for your motor. Better to leave it off.. The motor gets plenty of air.. its the other bits that need help..

Mr. Scary

Wow, I dream in RS6 Visions! Thanks, that's exactly the tips I was looking for.

Mr. Scary

Where do I get the S6 cams? How much and how much HP gain? Is it that noticeable by the dealer?

Hy Octane

The 4.2 in the S6 is the same basic motor with higher performance cams and a few other changes to get 40 more HP and some additional torque than the A6 4.2. I suppose you could order a set thru Audi parts dept but they wont do the instal. You would have to find an indie.. prolly not an easy mod as the ECU would no doubt have to be changed. Start with the chips and exhaust and see how you like that ..

markbradford

Is the compression the same on the A6 4.2 and the S6?

Hy Octane

Yes.. both are 11/1..

ryoung

I'm curious how they compare to these for the A8. The valve timing below is from the Bentlety, 1mm valve lift:

.......................... ABZ ...... AEW ... AKB/AUX
IVO after TDC ....... 10 ......... 10 ....... 25
IVC after BDC ....... 40 ......... 25 ....... 45
EVO before BTC ... 30.5 ........ 30 ....... 38
EVC before TDC ..... 2 .......... 10 ........ 8

The ABZ 4.2L motor is 300 hp @ 6000 rpm, the AKB and AUX 4.2L motors are 310 hp @ 6200. The AEW is the 3.7L motor from the FWD A8 and is 230 hp @ 5500 rpm.

Unfortunately, my Bentley doesn't list the cam specs for the S8 motor. Actually, it Bentley contains a typo and lists the AKB/AUX motors twice. If anyone has a later Bentley with the S8's cam specs, I'd like to see them.

PaulW

I have a Euro manual that probably has the specs.....what section is it in so I don't have to find it?

ryoung

Engine Mechanical
00 General, Technical Data
Engine Data

page 00-3 of our Bentley

Do you have the European A6/S6 manual, the A8/S8 manual, or both?