OZ951

I emailed Tech Edge recently about the fact that their wide band O2 unit being excellent apart from the fact that it does not log an RPM value correlated to the AFR measurement. I got a reply today as follows:

------------------------------
Version 1.5 PCB will support this (due in maybe 3 weeks).

We'll also have a logging upgrade for V1.0 (current) to do RPM logging
as well as two other channels.

Peter.


--
Tech Edge Pty. Ltd. <a href="http://techedge.com.au" target="_blank">http://techedge.com.au</a>
(02) 6251 5519 Int'l +612 6251 5519
37 Jalanga Cres. PO Box 288,
Aranda, ACT 2614 Jamison Centre, ACT 2614

-------------------------------
Woo hoo ! This will provide the data to make the adjustments to the Fuel map in the Link AFM
. Tech edge's system is already the cheapest out there so this is great news.

Larry Parker

Looks damn cool.........

Few people realize how important a wide band o2 really is........

thanks for the link!!

Ski

I just checked the AU exchange rate,,today the Tech Edge part(s) are $232 US + the NAPA sensor is $139 so the wide band kit today is 371!(plus shipping from AU and tax on the NAPA sensor)

howie

hOW DO YOU GUYS INTEND ON USING THIS PRODUCT?? aLWAYS HOOKED UP OR JUST FOR TUNING??

Ski

I plan on hooking mine up at the CO tube connection, get a bung welded on, and use it all the time. When you can get the sensor at NAPA why not,,it is $139 but that's not bad for knowing how your engine is fairing.

David Floyd

I have been using the Tech Edge unit on my new engine works well.

Ski, I welded a bung at the CO tube connection and did not have enough room for the O2 sensor once the crosover pipe was mounted, so I added another bung on the 3" testpipe right in front of the starter.

I wonder can the RPM logging be retro fit to my unit ?

howie

SORRY BUT WHAT IS THE CO CONNECTION

Ski

The CO connection,if yours is still hooked up - most aren't, was a pipe that came up from the crossover pipe so that a tech could check your exhaust CO content at idle. It connects on your crossover pipe, about 8" over from where your exhaust manifolds connect to the crossover pipe. The pipe, if you have it, would come up behind the cam tower, it is not the electrical connector attached to the lifting eye, it was a pipe with a cap on it.

David thanks for that info. I guess I'll do the same or remove the center section of my crossover pipe(LR 3 pc) and weld one in where I have some clearance. How long did the shipping take from down under? How is the car running...any boosted runs yet?

David Floyd

[quote]David thanks for that info. I guess I'll do the same or remove the center section of my crossover pipe(LR 3 pc) and weld one in where I have some clearance. How long did the shipping take from down under? How is the car running...any boosted runs yet?

<hr></blockquote>


Ski, it took about 3 months from when I placed the order, they where doing some revisions at the time, shipping itself was about 4 days best I can remember.

Only 10psi boost so far, 900 more miles and the fun begins.

<img src="graemlins/burnout.gif" border="0" alt="[burnout]" /> <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />

BC

What Napa Part number is this WIDE BAND o2?

I need to get one for an EFI install, and would like to not spend 600 dollars.

Thank you in advance,
Please email at:
brendancampion@att.net

David Floyd

The wide band O2 is NAPA Echlin OS791

sean bartsch

So, lets say i have acess to a dyno at my school. Its kind of vintage and has no wide band o2 sensor. with this piece of equipment would i be able to accurately fine tune my link AFM on the dyno?

OZ951

[quote]So, lets say i have acess to a dyno at my school. Its kind of vintage and has no wide band o2 sensor. with this piece of equipment would i
be able to accurately fine tune my link AFM on the dyno? <hr></blockquote>

Yes you will, since the wideband o2 will show you exactly which rpm's have less than ideal fuel mixtures, you can then adjust the AFM link fuel mixtures at those rpms (using the link tuning module) and run the car again, you will see the new fuel ratio and should also be able to quatify the effect on power that it has. Even if it does not have a large effect on power, by bringing the mixture to an appropriate ratio you will be preventing any dangerous lean conditions.

OZ951

It now seems possible to be in tuning heaven if you have

1) Tech edge wideband O2,
2) AFM link with logging to PC
3) new G-Tech pro (temp stabilised) measuring power vs rpm

Armed with these datalogging little beauties we can now tune very accurately and quantify the results with very reasonable accuracy. I think it would certainly be possible to do very good tuning with these items so that only a minimal amount of time would have to be spent on a professional dyno to get precise and accurate results at the end.

sean bartsch

This is great . now i can get everything perfectly tuned and can make adjustments with every modifacation i do. This makes me feel even better about having a MAP kit. Why do need the PC link? Is it for data loging? Is this where you would see the rpm vs air/fuel ratio chart?
Thanks for the great info OZ951