If your gf owns the Z28 then send her to the board.. at least then we will have someone we might can flirt with instead of a person with selective reading skills. No one said your way would absolutly NOT work. They said the dyno way was A, (that is a singular notion, for you with selective reading) way of doing it. I would not want extra gauges in my car, but I would like to know the hp of my car.. so I would choose the dyno method myself. As for most SS's running high 12's.. WHERE? I want to take my car there. A few stock SS's getting there.. maybe... but MOST? And since you brought up the 16 second car I have to ask.. do you drive a civic with a huge fart can on the back?

 

A wideband will be more accurate than the LS1 O2 sensor. If you are serious about tuning your car you'd go to get on a wideband. Why on earth do you think the FI guys use Mustang dyno's to tune their cars if they could just hook up an Autometer A/F and EGT gauge and tune with that?

And which major automaker research and development facility do you work for? Honda R&D here, I can scan my badge in if you'd like to see it. Get a clue.

If you were to integrate your O2 voltage to get an average value for the signal just while cruising around, not at WOT, you would notice a trend of roughly where its running. The PCM would be trying to keep the A/F near stochiometry (14.7 A/F ratio). In theory it should be around 0.45 volts, I'm telling you that on an LS1 it won't be. The sensor will either read high or low, its not that accurate. If the sensor should put out 0.45v on average, but is putting out 0.7v on average, I think you'd begin to question its accuracy.

First, I never said 14.7 volts anywhere.

If you get 14.7v from your O2 sensor yes its defective, the voltage range goes from roughly 0 - 1.1 volts from completely rich to completely lean. Yes, an EGT would be a good idea for someone looking for a more accurate reading. Things like timing can also effect your EGT though. For example, if your timing were theoretically near TDC (0° spark advance) you'd see that your exhaust manifold glows red and gets well over 1000°C VERY quickly. This really only happens in the test environment, I just used it as an example of how EGT can be effected by things other than A/F ratio.


Yup, you're right, I know nothing about cars.

 

96fbirdA4 you are stretching it to think that the brainiac understands what intergration is.. much less knows how to do it and what it can tell him.. LOL

 

I honestly think that he knows a decent amount about cars. If he knows enough about what I'm talking about, he should agree with me.. In my first post I didn't point out that I was talking about an average value from the O2 sensor. If you were to hook up the line from your O2 sensor into an oscilloscope it would look somewhat like a messed up squarewave. You would see a bunch of zero-crossings (with zero being stochiometry 0.45v) because the computer keeps going rich-lean-rich-lean-rich-lean trying to run at stochiometry. He was 100% correct about that.

As for the "you don't know jack about cars" comments, I think they speak for themselves.

 

Better yet, here's me with Honda's humanoid robot ASIMO. I'm in the back on the left.

http://www.geocities.com/sigmachi03/asimo.html

 

well i DONT know everything about cars and my LS1.
i know more than most people.
so yea...


thanX again for the responses.
when im not broke ill look into gettin dynoed again.

Oh and whuts different about a wideband?

edit:
most people meaning the non car junkies unlike people on this board

 

But these Tech posts are almost as much fun as the Lounge !!


Anyway, what is a wideband ??

And, for argument's sake the only way I found out about my A/F ratio was thru a Dyno test - $ 35.00 for 2 pulls.

That wasn't the reason I dynoed, though .


Britt

 

I know what you are saying. I understand completely but what i'm saying is simple as well. I said it before in an earlier post. People go to dyno's to see how much power and for "PRECISE" tuning. That will get the car working perfectly at that moment and maybe a little bit afterwards. But, as you know, cars and engines change alot. **** goes wrong and stuff breaks. Should I pay (it's $70 here) $70 to get my car dyno tuned everytime something is going wrong. What if the car has been running so lean for a long enough time that when you get to the dyno and begin your run, it blows. All and all, the dyno will provide more accurate readings but who has the time to go to a dyno all the time? Sure as hell not me. The best way to measure a/f ratios is from o2 voltage and EGT. With those 2 gauges you will know 24hours a day, 365 days a year if your running rich or lean and by how much. If you are getting really off the wall o2v readings then you should invest in a new o2 sensor. The stupid comments about how I own a "Honda" are just plain and ignorent. I don't own a honda but I guess you could say it's in the same classification as a Honda. No, it's not an Acura either. I honestly don't think what kind of car I own matters. Engines are engines and they all work the same with the except for the nice RX-7. The simplest, cost effective solution to monitering rich or leaness is Air/Fuel gauge and Exhaust Gas Temperature gauge. People might want to get dyno tuned on a day to the track but some people need to know all the time what their air/fuel ratios are like myself. Honestly, the an air/fuel and egt could possibly be the most important gauages you could have and, unless you have a supercharger, turbocharger or major engine work, the only 2 gauges you will need.

 

toy in case you didn't notice there were no ignorant remarks untill you said one so if you want poeple to be nice to you smarten up and be nice to others.

 

I don't recall asking to be friends with anyone here. It was very ignorant to ask if I drived a Honda with a big fart cannon or whatever he said on the back. Does it make you guys that mad to get stomped by an import 4 cylinder? I thought cars were cars. Incase you guys didn't know, just because someone owns an import, it doesn't mean they don't know **** about cars. It's the import owners that know nothing about cars that give all of us a bad name. Yes, most of the import owners don't know ****, they have everything done at a shop and know little to nothing about the parts on their car other than the brand of it. I've actually asked this guy in a turbo'd Civic Si how much boost he was running and he said, "I don't know." I gave him **** just like I would have give anyone **** if they didn't know how much boost they are running. Considering they have a boost gauge less than a foot infront of their face. It has nothing to do with the type of car, but the person behind the wheel.

 

well since you didn't understand what i said i will say it in plaing terms for you if you act likt a **** wich you have so far noone will be nice to you and will say stupid things about you so instead of being the idiot that you are be a good boy. ok i hope this gets through to your head i know it is tough with all those nawsssss ideas's and stickers your dreaming up.

 

All those stickers?? It's funny you should mention that because that 1 MSD sticker you have on your car means you have q more sticker than I do. I have none. hehe Very ignorant again. Don't be mad because my little 4 cylinder can beat your big bad v8.

 

ummm actually smart *** that was my last car and that did mid 12's your 4 banger doesn't so that does it exactly my new car is a dead stock 2000 ss and i have no need to be fast cause it is still 100000000 times better looking than yours.

 

Damn man..YOU GOT ME!!! Mid 12's, how fast...or is it? My "4 banger" as you say did that about a year ago...****!!! You got me again. I've put about a grand in it since then. Keep trying **** head. Here's the sad thing. Mid 12's...What did that car run stock again? Mine runs about 16's stock. You made your car about a second and a half faster. GOOD JOB!!!! My dead grandmother could do that. Let me count how many SS's i've put to shame. Not saying I could beat all but it's funny as hell to smack one around and see their face afterwards. Enough with the bull**** arguing because it's just gonna make you mad and pissed off. Let's end the childish bull**** because it's getting no where. You should be modding your car instead of bull****ing with little "4 bangers" that don't know what they are talking about. When you run 10's call me and I might give you the time of day. Until then.............................................. ...............................................
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SHUT THE **** UP MORON...

 

first off i don't believe you and you havn't even said what your car was and second off my car only had exhaust intake and rr's so it was all bolt ons i didn't need very much so if you car is the **** what is it big mouth?