I have my speed pro finally. The shop I got it from is pretty much a ford based operation, and I was asking him about where I should put the O2. He said I should not put it after the y pipe. He said find out which bank on chevies run leaner and put it on that side as close to the collector as possible. Im hoping the drivers side is the leanest(the factory location of the slp bung). Anyone have any ideas? Or is he totally wrong?

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87z 383,afr 190's, comp hyd roller(242/248-.540/.562,114 sep),Ported and polished mini ram, 30lb inj, 3.42 gears, tremec 5spd, , 1,3/4" slp headers, speed pro bank to bank-wb02.
"Just remember children, no man can beat you once youv'e found the cliterous." 'chef'

 

Is this a WB O2 Speedpro?.
If so then anywhere post exhuast tip of 12"s is fine.
If heated, about anywhere within 6' of the exhuast valve.

The O2 is for emissions and is an average, it just cycles rich and lean to an average of 14.7, which is plenty rich. As a matter of fact for idle and cruise richer then needed

 

Thanks for the advice. Yes it is a wbo2. I wanted to put it after the y to get a reading from both banks. Im sure this is within 6'.

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87z 383,afr 190's, comp hyd roller(242/248-.540/.562,114 sep),Ported and polished mini ram, 30lb inj, 3.42 gears, tremec 5spd, , 1,3/4" slp headers, speed pro bank to bank-wb02.
"Just remember children, no man can beat you once youv'e found the cliterous." 'chef'

 

Hey man, does that WB O2 plug into the factory harness. This O2 will let me see the AFR at WOT, right?? How much was it?
Thanks, Rick

 

He's talking about the SpeedPro ecm with a WB option. that WB O2 not GM user friendly. Yes, a WB O2 sensor will let you see WOT AFRs. There is a DIY in developement

 

oh!
how much is that system anyway?

 

 

Way too much!!!!!!!!! And it took over a month for Texas Jam to get it. With tax it was 1938.00. Ive started putting in the harness. Unfortunatly I have have to lengthen almost all the sensor leads. Its going to be bad *** though. Ill email you when I go to the track with it.

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87z 383,afr 190's, comp hyd roller(242/248-.540/.562,114 sep),Ported and polished mini ram, 30lb inj, 3.42 gears, tremec 5spd, , 1,3/4" slp headers, speed pro bank to bank-wb02.
"Just remember children, no man can beat you once youv'e found the cliterous." 'chef'

 

Im going to get used to tuning it with the small cam first, then Im going to the mack daddy.

 

YEEEAAAAH!