Weavsvet wrote:
Like 140 bank1 and 160 bank2.

Should I just drive it a while and see if they come down any?

vis_croceus wrote:
Quote:

Weavsvet wrote:
Like 140 bank1 and 160 bank2.

140 is completely innocuous.

160 means something is seriously broken.


Quote:

Should I just drive it a while and see if they come down any?

No, you need to fix the (apparently many) physical problems with your car. Driving it with a 160 BLM will break stuff.

Weavsvet wrote:
Ok, so where do I start.

Steve40th wrote:
I would put the Edlebrock back on. See what happens. Also, with the ported manifold off, check under the manifold where the idle control passageways are, to see if there is a smoking gun per sey.
There are so many things that could be wrong with a manifold swap. Air from where the bolts go in? (I am not sure, but do you put thread sealant on manifold bolts?)
Are the injector plugs on the correct injector. Dont laugh, it has happened before.
EGR?
AIR hooked up?
Pics of the whole manifold wiring/hoses.
Brake booster line going in.
PCV hoses to manifold?

vis_croceus wrote:
Previously you reported that LT/ST trims were all 128, and it was dumping fuel, and it was running lean.

Which two of those were incorrect, and what changed since then?

Steve40th wrote:
I would put the Edlebrock back on. See what happens.

Weavsvet wrote:
Quote:

Steve40th wrote:
I would put the Edlebrock back on. See what happens.

Turns out it was warped or had a hump right at the PCV connection on the flange that goes against the head. I can send it back or true it up. I haven't decided yet.

Steve40th wrote:
Quote:

Weavsvet wrote:
Quote:

Steve40th wrote:
I would put the Edlebrock back on. See what happens.

Turns out it was warped or had a hump right at the PCV connection on the flange that goes against the head. I can send it back or true it up. I haven't decided yet.

I would have Edlebrock send you a new one. Quality Control and customer service.

Weavsvet wrote:
Quote:

Steve40th wrote:
Quote:

Weavsvet wrote:
Quote:

Steve40th wrote:
I would put the Edlebrock back on. See what happens.

Turns out it was warped or had a hump right at the PCV connection on the flange that goes against the head. I can send it back or true it up. I haven't decided yet.

I would have Edlebrock send you a new one. Quality Control and customer service.

I might but I have read a lot about the quality of their castings since I got the one I have. Another one may be as a bad or something different wrong with it and I did was waste some time waiting on it.I feel I can get it pretty true. At least enough where some RTV will make up the difference.

BrianCunningham wrote:
makes you wonder if this was the issue and not the headers.

Stl94LT1 wrote:
I'm using SS bolts from the Hardware store with my headers, not a problem.

Weavsvet wrote:
What about this cam? The exhaust smells really strong for a cam no bigger than what it is. Could the combustion be incomplete or something like that setting off the 02's. Maybe it does need advancing or retarding. I keep thinking back to what the tuner said about not enough air flow for the mods I have. If the cam is wrong then wouldn't the combustion not be as complete as it should?

Back when I had that "Problem,Problems,Problems" thread at CF one of the responses was that my compression numbers because they were so high was a good sign the cam was advanced. I have those numbers somewhere but for the most part they were 200-220 I believe.

Steve40th wrote:
Just for shits and giggles, put your factory throttle body back on and see what happens.
Its a known fact , cams, strokers and aftermarket throttle bodies can cause split BLMS/FT issues.

Aboatguy wrote:
Mike

How's your engine vacuum?

pr0zac wrote:
kind of a stupid question but did you disconnect the battery during your intake swap. if not i don't think you will see an instant change on the ltft without driving it for a while.

pr0zac wrote:
Its been while since I was up to date on this subject but as I remember it would go off of previous stft and it needed to have repetitive differences to change? I could be talking out my ass but I recall something along those lines.

pr0zac wrote:
kind of a stupid question but did you disconnect the battery during your intake swap. if not i don't think you will see an instant change on the ltft without driving it for a while.

Weavsvet wrote:
I may be chasing the wrong thing........

http://www.ls1tech.com/forums/lt1-lt4 ... ifferent-than-oem-tb.html

Steve40th wrote:
Quote:

Weavsvet wrote:
I may be chasing the wrong thing........

http://www.ls1tech.com/forums/lt1-lt4 ... ifferent-than-oem-tb.html

I did this to my AS&M 58MM t body years ago. No difference. But, the tuners I have dealt with keep telling me vacuum leak.
If you read the amount of threads of split BLMS, it will drive you insane.
Starting in 94, tuners were/are able to tune each cylinder to alot for inequalities in idle air passages. I think GM put this tune in just for this purpose alone, knowing the LT1 manifold isnt very good. Even Lingenfelter talks about it in his book.
I have had factory, BBK T Body and of course factory, different cams, different headers, two different manifolds, changed all vacuum lines, O2 sensors(heated and unheated), gaskets, injectors. The list goes on, I have always had split BLMs on this car, 1993 Vette.
Not as bad as it is with stroker and camshaft currently in, but have always had it. I have DIACOM logs back to the days of Noah being a deck seaman, and they were there.
When does the madness end. No one has a clear cut fix, no one, just band aids.

Weavsvet wrote:
Quote:

Steve40th wrote:
Quote:

Weavsvet wrote:
I may be chasing the wrong thing........

http://www.ls1tech.com/forums/lt1-lt4 ... ifferent-than-oem-tb.html

I did this to my AS&M 58MM t body years ago. No difference. But, the tuners I have dealt with keep telling me vacuum leak.
If you read the amount of threads of split BLMS, it will drive you insane.
Starting in 94, tuners were/are able to tune each cylinder to alot for inequalities in idle air passages. I think GM put this tune in just for this purpose alone, knowing the LT1 manifold isnt very good. Even Lingenfelter talks about it in his book.
I have had factory, BBK T Body and of course factory, different cams, different headers, two different manifolds, changed all vacuum lines, O2 sensors(heated and unheated), gaskets, injectors. The list goes on, I have always had split BLMs on this car, 1993 Vette.
Not as bad as it is with stroker and camshaft currently in, but have always had it. I have DIACOM logs back to the days of Noah being a deck seaman, and they were there.
When does the madness end. No one has a clear cut fix, no one, just band aids.

I did this to my BBK 52 but that was just to help with idle. I got the info from Jim Masons link to the Grand Sport registry. It helped the idle. I think I'm going to try the 52 just for more shits and giggles. I'm not getting enough of them lately.......

I have another new 02 coming. That will make both of them brand new Delphis. I'm going to put that in and just drive the damn thing. I'm tired of messing with it!

Weavsvet wrote:
Isn't the top portion for the PCV system? That's the air intake for it.

BrianCunningham wrote:
you guys know there's separate passages for the idle circuit in the manifold right?

the holes come out into the each cylinder intake.