B18B1LS1

iTrader: (12)

How do you guys dyno your A4's?
I have dynoed on the motor for peak numbers by just rolling into third then punching it.
But what about on the bottle, I would like to see my A/F ratio on my whole 1/4 mile run, can this be done on the dyno?

Thanks
Jeff

Ragtop 99

iTrader: (7)

Unless your dyno shop has a Tech II or similar device, all you can do is put the car in third gear bring it to ~ 60 - 90 mph (depending upon your rear gear) and mash it. The dyno will start recording after the upshift to 3rd.

If you have LS1Edit, you could temporarily alter your shift points to keep the tranny in 3rd as well as lock-up the clutch.

B18B1LS1

iTrader: (12)

So the majority of people that get their A4 cars dyno tuned on the wide-band are only using upper(around 3000 and on) third gear rpm's as a reference? I guess autotap is for everything else.

Thanks,
Jeff

Ragtop 99

iTrader: (7)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by B18B1LS1:
<strong>So the majority of people that get their A4 cars dyno tuned on the wide-band are only using upper(around 3000 and on) third gear rpm's as a reference?
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">True, but even the M6 guys frequently start around 2500 rpm. In a race, you'll be below 3000 rpm for only a brief moment at the launch, even if you have the stock converter. From a roll, you'll never be below 3000 rpm at WOT.

GETSOMZ28

iTrader: (1)

When I dynoed my car, they just smashed down the pedal and redlined the first 2 gear and up to 5800-5900 in third (power started dropping after 5400 anyways.