eage8

iTrader: (9)

I need one

muythaibxr

We have an extra we can sell you for ONE MILLION DOLLARS (or maybe $280)

eage8

iTrader: (9)

hrm, could you order a wideband o2 for me too

DarkAngelKamui

muythaibxr

you can order it from http://www.innovatemotorsports.com/x...cat=253&page=1

I don't have the spare money to just toss around, I'm not spending anything till next paycheck due to paying for rent, utils, welding class, oscilloscope, car insurance, etc... (lot of extra expenses this check that I don't normally have to pay)

eage8

iTrader: (9)

understandable I'll buy it as soon as I get one of my tax returns, my money from noel, or my money for my jeep, which ever comes first

x0ny

what is a wideband O2?

muythaibxr

I'm not broke, but I like to keep it that way... so I have a set budget and I try not to go over that much per paycheck (so I save a certain amt per check, went over budget this check tho).

There are 2 main types of O2 sensor: narrowband and wideband.

The narrow band is useful for telling the computer when the engine is running at stoichiometric (14.7:1 for gasoline) Air fuel ratio, but at any other air fuel ratio, the the voltage coming from the narrowband sensor is a guess... you can only tell if you're running lean or rich, but not the exact AFR (Air Fuel Ratio). The voltage from one of these is usually between 0v and 1v, with .5v being stoichiometric (14.7:1).

A wideband O2 sensor (with a controller) can tell you the exact AFR between two certain values... By default, the controller that jason has can tell the megasquirt AFR's between 9:1 and 19:1 by signalling the megasquirt with a voltage between 0v and 5v. Better still, the signal is linear, so the correlation between voltage and AFR is just a straight line, where with some other wideband units, and with narrowband, the correlation is a curve.

The wideband O2 controller/sensor that I'm recommending to eage8 isn't necessarily better than what jason has... but unlike jason's, it's pre-built (we had to solder together everything in jason's) and costs the same amount as jason's (unbuilt) kit did.

eage8

iTrader: (9)

and it looks like the controller part is alot smaller isn't jason's controller like bigger than his ECU is?

it was huge like an XBOX

muythaibxr

The Innovate is smaller, but jason's isn't that big, it's smaller than the megasquirt:

13Beast REW

Well I completed the o-ring block weld fix and my verdict for the moment is that it works but be prepared to replace the water pump. $70 from advance autoparts and should get there the next day.

x0ny

whats the advantage over have a wideband or a narrowband O2?

eage8

iTrader: (9)

if you're tuning with an ecu or a fuel computer or something, you want a wideband cause it's like eleventyhundred times more acurate. so you can tune super good

Pele

iTrader: (28)

WideBand gives you an accurate reading of your mixture (Fuel to air... Also called Stoichiometric ratio)... Perfect ratio, as said above is 14.7:1. Sometimes the prefect ratio is called "Stoich"...

NarrowBand gives you Stoich, Too rich, or Too lean... There is no more info. If the little A/F gauges that work with narrow bands have numbers on them, they are a joke.

WideBand, however costs more, requires a controller (Total cost is about $200), and sometimes requires calibration. (Send a known gas ratio to it, check reading, adjust values of resistors...)

NarrowBand needs no controller. You can pick one up from Advance Auto Parts or somewhere for less than $50... One wire to hook up, and you're set.

muythaibxr

Not ENTIRELY accurate... Stoichiometric refers to a single AFR, or a lamda of 1, that's 14.7:1 for gasoline, but it's differen't for every fuel... Wideband tells you the EXACT air fuel ratio, so tuning no longer is a guessing game, its an exact (usually within .1 afr) science... all you have to know is what AFR to tune for in a given area, and then change the amt of fuel to match... in addition, the ECU (in megasquirt's case) can match the afr you want in a given part of the table... so that helps you use automated tools for tuning, and once tuned, can help take things like changing barometric pressure (you go over a mountain, the weather changes, etc...) into account by slightly adjusting the amt of fuel injected from the VE table.


[quote]NarrowBand gives you Stoich, Too rich, or Too lean... There is no more info. If the little A/F gauges that work with narrow bands have numbers on them, they are a joke.[/quote

yup

yeah, although the lm-1, lc-1 and techedge units just require free-air calibration... and a lot of the "easier to use" units are doing the same... the only one I can think of that will require the type of calibration you are talking about is the PWC from the megasquirt guys... and that controller isn't out yet.

Enkidu

https://www.rx7club.com/showthread.p...light=gas+tank

Can someone give me a little advice on how to pry this thing open and where to look for the connector?

Nevermind, I think i found it

Tofuball

Bring it by, I had the same problem, I can fix it right quick.

AkumaKuruma

wooo...estimate is about 2 weeks to get my car up and running again. (i might get to drive it before i leave )

but at the same time i now feel $1200 lighter and will feel even lighter when its done

CokeRx7

Well give me the address and i'll map it.. I'm getting my gps system soon.. so watch out.. :-D

muythaibxr

who on here has the xanga "S_7" ??

x0ny

o, thats me.

DarkAngelKamui

Psh, Deadjournal's where it's at....

For all your emo needs

x0ny

i update my xanga once a month haha, i write like one sentence.

muythaibxr

I started my xanga like forever ago, back when xanga was really the only blog site around... and I'm too lazy to move anywhere else...

And x0ny: if the hachi is ready, I'll drive it... It depends on how fast Julian and I work, and whether we can find someplace around CP that does good alignments.

Enkidu

its all about livejournal~