Why does less timing and/or a richer mixture yield more torque?
03-19-2002, 09:49 PM
#1
Why does less timing and/or a richer mixture yield more torque? I noticed on the dyno Saturday that the more I removed fuel at WOT, the more my torque decreased. I was around 415lbft with rich A/F (.950 - .990), and eventually dropped to about 380lbft with WOT O2s around .900 - .930. I always thought leaner wasm ore power, but I guess to increase HP, you have to decrease torque?
03-21-2002, 12:01 AM
#5
TECH Addict
Join Date: Nov 2001
Location: College Station, Tx
Posts: 2,207
Likes: 0
Received 0 Likes
on
0 Posts
Re: Why does less timing and/or a richer mixture yield more torque? First off you can ignore your stock o2's <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> .
You do want to be richest at your torque peak though - your engine is at max VE here, so you are using the most fuel you will anywhere here, but it is also the most sensitive to detonation/pre-ignition here.
You will also need the least amount of timing here as your charge quality is the greatest.
Chris
You do want to be richest at your torque peak though - your engine is at max VE here, so you are using the most fuel you will anywhere here, but it is also the most sensitive to detonation/pre-ignition here.
You will also need the least amount of timing here as your charge quality is the greatest.
Chris
