A little wot video of my Z !!

[5ABI VT]

I hear you but play the first video I linked when I posted 2 just above.. That was with the same exhaust setup. Absolutely ZERO popping at any speed. The only changes since have been ported top end and secondary system eliminated. That's all. And now there is a lot of snap crackle and pop all the time. The only other thing that was changed was the chip was revised for secondary elimination and porting.

[Paul Workman]

My Z is a mixed bag. It is fully ported, etc (see signature at bottom) and on hilly terrain (e.g., "the Dragon's Tail") on some decel stretches I'd get popping, etc. But, on others It would stall out until I blipped the throttle and it would "be nice" for a while. Probably needs to have hands "laid" on (the chip) at some point. Runs like a scalded dog, otherwise!

[Roadster]

Sounds great, neat video.....need to ask you, how did you hook up your Go-Pro? thanks.....Tom

[5ABI VT]

Originally Posted by Roadster

Sounds great, neat video.....need to ask you, how did you hook up your Go-Pro? thanks.....Tom

Thanks ! The gopro is on the r-d harness bar that goes across from the seatbelt anchors. I wanted a view where I could get the interior, out front and the sides for some roll on fun

[5ABI VT]

Marc emailed saying the anti backfire mode was enabled. Hmm. The only thing that has changed is the top end porting and rutune. I double checked all the header bolts etc when underneath but I did remove the exhaust and reinstall it. I'll be doing fuel filter and while I'm underneath I'll check the exhaust connections.

Would o2s throw a code if going bad ?

[We Gone]

Originally Posted by 5ABI VT

Would o2s throw a code if going bad ?

Not if one is slow, You need to have it on a scanner to check them.

[5ABI VT]

Originally Posted by We Gone

Not if one is slow, You need to have it on a scanner to check them.

Hmm any special scanner ? I have a basic one but doesn't show O2 readings. My brother has one with a screen that does but not sure if it works with obd1?

I may as well change them any reccomendations on this forum to generally stick with ?

[We Gone]

I was having some backfire on rapid deceleration and it was having a hard time stabilizing rpms at the same time, and some lag in light throttle response. I have a scanner that I can watch and capture data. What I saw was the right 02 was reacting very slow and not cross counting as fast as the left and the numbers were off compared the the other. I replaced both 02's got them from Jerry's car runs great now.

Let me add I still have secondary's and high flow cats this was on my 91.

[WydGlydJim]

One of my favorite Zs!.........


little WOT in the white beast..

https://www.youtube.com/watch?v=xCAT4uEiQzM

https://www.youtube.com/watch?v=VQgkV0D1NCo

[Fully Vetted]

Originally Posted by 5ABI VT

My tips don't blacken much at all but from what I know and can google.. that's the cause as you mentioned. Theres a dramatic difference from the first video though.. none at all.. and just excessive in the re-tune after the top end porting/secondary elimination

You can see my mods in my sig (no cats). I don't have much popping but I def have dark tips.