S/C owners: collecting information

[kurokoma-kun]

Hmmmm thats weird, my a/f gauge shows nothing but "green" at low boost... from this I've been assuming it's seeking to maintain stoich numbers until you get to wot/open loop. Also I was under the impression that at wot an AFR of 11--which would under any other conditions be rich--is actually ok...

[LtNoogie]

My ghetto air restriction testing. Rather than change back to the old airbox, I am testing different amount of airflow by adding more tape. I collected some data on the data logger and am analyzing it tonight.

[Nexus1155]

well, yes, i mean, some have short rams, some have long tubes, some have easy breathing filters while some don't.... we're arguing semantics here... It seems im assuming the instruction for the kit did not say anything about changing the intake and thats where everyone went wrong... adding more air to it when it wasn't needed...so tape up them thur filters

[kurokoma-kun]

Originally Posted by camelll

KK when you are at a stop light and floor it how long does it take your car to go into open loop? Just watch your a/f gauge when it goes to 11-12 you are in open loop.

When I am at a stoplight and floor it, it takes approximately 2 seconds for the police pursuit car to fly out from his place of concealment in the bushes! He appears immediately in my rearview mirror, and only takes a few minutes to nail me for a $280 ticket

JUST KIDDING here's how it really goes:

If I go from standstill to wot, I am seeing 11s-12s AFR as soon as I hit 6-7-8 psi (my max). Typically this involves throttle position of 50 or higher, what I think of as "wot." However, this also happens if I reach those psi's at slightly lower throttle position, under heavy acceleration (merging into faster traffic while going up a hill, lets say).

Just a related note, not the wot situation: If I do not exceed 3-4 psi, my AFR may remain at 13-14-15 indefinitely, EXCEPT in "highway" mode as mentioned before.

This is based on so few tests though, I've only had those gauges in for a week, so I'll keep watching as closely as I can while avoiding getting arrested

[PETERPOOP]

Originally Posted by kurokoma-kun

If I go from standstill to wot, I am seeing 11s-12s AFR as soon as I hit 6-7-8 psi (my max).

You are seeing those AFR numbers sooner than camell and I. It isn't until we hit open loop till we see the 11-12. When you hit your 6-7-8 psi, is that when it is open loop? Did you check that

[kurokoma-kun]

After watching for a week now it looks like the 11s-12s always go hand in hand with open loop on my car.

It does take a couple seconds or longer for the scangauge to show that, but it takes that long for it to show any change!... Garm was saying it's display is slow compared to our a/f and other gauges.

[whooppee777]

i know this has been covered before but whats the deal with the random vibrations i hear when my a/c is on? i turned it on for the first time yesterday and got the vibrations/noises