good info. especially since the hks are on backorder.

 

Thanks for the dyno's but they are kinda hard to read. Could you just tell us what the numbers were. Also they dont show anything on the a/f. And if you said run 3&4 were with run 3 shows a slight drop in HP and TQ compared to the first two.

 

yeah Sorry when I get into my office today I upload the dyno sheet. Yeah run 3 and 4 the HP and tor went down because I think the person who was in charge didn't cool down the sensor. So I will be getting another dyno like in a month or so when I become less busy with work.

 

Firstly,


Unless you're suggesting the ECU automatically adds a disproportionately more amount of fuel to the mixture when it detects more air coming in, the term "rich" is referring to having too much fuel for a given amount of air, so an A/F ratio > 14.7. Having more air for a fixed amount of fuel would be lean.


Secondly,

Under normal driving conditions, your car shouldn't be running more lean or more rich than the usual amount unless your A/F ratio has been tampered with. The O2 sensor runs on a closed loop, so it will automatically adjust your A/F to be kept as close to 14.7/stock A/F value as close as possible.

 

^+1

But for the 1st post on this topic if your ECU didn't compensate for additional air to keep the A/F on target and you went rich, that would mean the filters were not allowing as much air through as the oem ones.