This is a discussion on Rpm settings within the Computer & Tuning forums, part of the LSx Technical Help Section category; I have a 04 a4 and iam wondering how high can i go on the rpm before i start to ...
07-22-2008, 10:14 AM #1
I have a 04 a4 and iam wondering how high can i go on the rpm before i start to lose power and it starts to go down on the power band.
07-22-2008, 02:30 PM #2
About 5200 to 5500 it starts to flatten out. On a stock engine
07-22-2008, 05:43 PM #3
Okay i have Lt headers no cats 1 chamber flows, CAI, 160 Thermi, Ported Throttle Bodie, 3500 Stall, BRM Drag Bags, Free Mods. Right know i have them set at about 6600 is that to high or what.
Last edited by ledesma54; 07-22-2008 at 05:46 PM.
07-23-2008, 02:07 PM #4
Most current OEm systens are thermostatically controlled to about 200 degree F to allow for ideal combustion and emissions. I know you dont have cats but still temps are needed in these engines.
Typically a 20 degree drop to about 180 degress f nets cooler chamber temps and allows those few extra degrees of spark advance that make more horsepower. EFI systems allow for enrichment and added idle speed based at cold temps.
Going too cool on the thermostat opening tmeperature can keep many OEM processors in the warm up routine skewing targeted fuel delivery and idle speed.
07-24-2008, 01:24 PM #5
I believe if you look at actual temps they're closer to 170-180 anyhow.
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