91 Z71 Resto

[Zseventy-one]

O2 sensor - think I should do a 3 wire conversion...

 

[Zseventy-one]

Rusty studs

 

[PlayingWithTBI]

Found this TBI mods article interesting.

Recommended 350 TBI modifications | TBI

Recommended 350 TBI modifications

harristuning.com

Have read it couple times and am using it and this forum to help keep my build on track.
Uncorking the exhaust is a decent start, but now I'm wondering if I will need a 3 plug o2 sensor conversion?

I used some of his suggestions too. A word to the wise, don't believe everything he says. The biggest bang for your buck is tuning. The best way to tune is with a WBO2. I did use a 3-wire NBO2 in my shorty header to begin with, then installed the WBO2 in the collector of my JBA "Y" pipe. I bought a chip from him, after a while I went with the EBL Flash-II, tuned it further and gained quite a bit more performance over the "mail order" chip. HTH

 

[Zseventy-one]

Thanks for the heads up!
Do you recommend a specific NB02 that could hold me over for a while like you did?
Do you agree with his spark plug/wires/cap/rotor advice?
Hoping after the exhaust, I can shift focus to suspension and start sorting out some of the other issues she has to improve drivabilty.
Thanks Again!

 

[PlayingWithTBI]

Do you recommend a specific NB02 that could hold me over for a while like you did?

xc_hide_links_from_guests_guests_error_hide_media

xc_hide_links_from_guests_guests_error_hide_media

Do you agree with his spark plug/wires/cap/rotor advice?

Even though they're pretty much all made in China I've had good luck with AC Delco D303A cap and D447 rotor, 1984A ICM, Arctic MX4 thermal compound, and I used Moroso blue max wires (because I like blue ha ha) with 90* boots to help clear the header tubes. With slant plugs I still had to use DEI high temp wrap and boot covers. Right now I have an Accel coil, so far so good. I've had cheap ICMs and coils go out in less than 2000 miles.

 

[PlayingWithTBI]

Oops, I forgot to delete the https// on the links, here ya go.

www.amazon.com/ACDelco-AFS74-Original-Equipment-Heated/dp/B000C9VTRC/ref=sr_1_3?crid=3341X16YX82KV&dchild=1&keywords=acdelco+afs74&qid=1625075038&sprefix=AC+Delco+AFS7%2Caps%2C761&sr=8-3

www.amazon.com/Michigan-Motorsports-Heated-Harness-Adapter/dp/B0141VHZ6U/ref=sr_1_1?dchild=1&keywords=michigan+motorsports+22300&qid=1625074989&sr=8-1

 

[Zseventy-one]

Thanks again this is great!
I'm a performance nut so it is hard to resist the urge to go overboard. Got any photos of where you installed your WB gauge? If not no biggie, thanks for your help!

 

[PlayingWithTBI]

Got any photos of where you installed your WB gauge?

It's down underneath but, here's the JBA "Y" pipe and the Thunderbolt 3 high flow cat (I think they're NLA but you can find other cats). You can see the O2 bung on the collector.

Edit, forgot the pic.

You must be registered for see images attach

 

[PlayingWithTBI]

Then I ran the wires up from underneath attaching them to the big wire loom, ran them in through the firewall to the EBL which can auto learn VE tables using the WBO2. The arrow is pointing at its connector.

You must be registered for see images attach

The WBO2 I have is 0-5VDC input for ease of connection.
www.amazon.com/Innovate-Motorsports-Digital-Wideband-Controller/dp/B00FFTAJPC/ref=asc_df_B00FFTAJPC/?tag=hyprod-20&linkCode=df0&hvadid=312152566480&hvpos=&hvnetw=g&hvrand=4328186092714481410&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031645&hvtargid=pla-388441160095&psc=1

 

[Zseventy-one]

Yea we have the same JBA y pipe! Thanks for the info, and the link.

P.s.- I noticed that WB kit uses a Bosch o2 sensor...Mr Harris no likey!!!! Haha