Just getting started as to programing.
Starter bin from PcF.

Have got idle and fan control worked out and moving on
to next change.
Running 165 Ecm 6e XFD.

Car runs very strong but getting a stumble, lean pop
when I get on it off idle.
Where in 6E or can use Expanded 6e, would I go to add
a little more fuel coming hard off idle
Can't change squirter size,or squirter cams like the old
days
Small changes at a time until the lite comes on.(Years).
We used a modified 800cfm TBI setup when we Dynoed
motor and now is a MiniRam setup.

Help Appreciated.

Later

 

Sure we can, we just don't call it that any more

Look for AE (acceleration enrichment) tables & parameters. These are the same as pump-shot.

Also be sure that the MAF tables are close. Otherwise they can cause the leaning and stumble. With the mini-ram this is where I would start. Can also fudge the MAF airflow a little to make up for AE.

RBob.

 

Rob
Thanks for reply.
Read alot of your inputs and replys and looks like you
are the resident Guru in this area

Will look in the AE tables but there are so many items
listed, kinda confusing rite now
Was hoping just one or two items could be manipulated
to achieve results.
oooooboy, Back to school.

Fuel system pretty well locked in, so thats not an issue.
Walbro 340M pump and wired directly into Alt at 13.9-14v
constant under load. BBK 58mm/Svo 30s@43.5# just for
your input.

Will look at the AE items

Thanks again.

Later

 

Rob,

Would (Acceleration Enrichment vs Changes in LV8)
and (AE Enrich async Pulses vs Temp) in AE listings
be the ones to play with

There are 2 or 3 others in AE also.

There are also about 12 MAF items to work with but thats
later.

Thanks

 

Search TGO for "AE tunning for MAF $32b $6e" or "AE tunning 2 for MAF $32b $6e"

Lots of good info.

Raise your "Max Air flow vs rpm" table values. This will unlean some areas.

 

Thanks for info and direction.
Just trying to take one problem at a time until up to
speed on what items affect area I'm working on.

Could go back and forth with PcF and sending Data Logs
but want to learn this for myself if I can.

Back to reading

Later

 

There are a lot of things that will affect AE. What size injectors are you running?

I got 24# svo in mine, You should be at 30# plus.

The Maf changes will effect your AE, everything is related, just some more than others. Read and search is your best path.

 

I'm running SVO #30s @ 43.5 and was thinking about
upping the pressure to help but thats going to richen
the whole band. Wanting to cure lean idle off before
moving on.
Going to burn a couple slight AE changes and see if I can sneak up on it.
May need more than slight.
Reading all I can on this but still old school,Going to take awhile

Input appreciated.
Thanks

 

I do not have any personal experience with the AE, mine is fine/close with the stock setting. One of those tables should be similar to the pump time/duration and another like the amount. You can give it a big amount for a short time or a smaller amount and a longer time. I wish I could tell you more detail but I am still learning (also old school). Lets see....Move to the inner hole and bend the rod for more stroke. That should do it.

Maybe a search on "off idle bog" would turn up something. The trouble with searching is everybody calls the off idle something else. AE, Bog, Hesitation, Stumble, Lean and Ect...... also search on "Big cams"

 

Sounds like you were working with Quadrajets & Rochesters

I always used a Phillips head, as in secondary squirters
and flat screwdriver, as in secondary ramp cams with Holleys.

Will keep using the search feature.Will try big cams to, as
I'm pushing .600 on lift and 250@.050 on duration.
First thing I had to do was get the idle up to 925-950 from
800 programmed in bin. Has a nasty idle and bark but showcar
and like it like that. Other half wonders why I don't tune it up
so it doesn't shake at idle like her car.
( Second childhood I guess).

Going to try to keep all questions on getting familiar with
this project in this thread, as I go along, so that maybe it
will help alot of the other (Just getting starting people) like
us.
Have a feeling alot of folks get turned off this stuff because
were in Kintergarden and can't relate to the college level
answers were getting back.

Realize that the Guru's have spent alot of time, gas and rubber to get where they are

See your running a 383 in your Vette, Hows it run?

Thanks for help

Later

 

I am happy with it. It is a DD, so it is a little tame with the "Baby cam". My real hot rod is up on two wheels (82 HD) 50 in 1st, 75 in 2nd... It's a 5 speed.

The vette is about all stock, go to the tpi board "tpi 383 52 58 mm". I just posted all the specs on it.

I have tuned/repaired CNC equipment for 30+ years and this is my retirement project. A lot of the skills learned over the years are really helping. The biggest is look/listen to the parts/equipment, they will show you what needs fixed/improved.

 

Agree on machinery talks to you if you listen.
I always used plug reading as to a happy motor. Seat
of the pants feel will fool you sometimes unlike stock car
racing car setup.

As to two wheels, had a (Arial square four) years ago, and the first time I dumped it,, said thats not so bad!!
Second time, changed my mind,fixed it, and sold it
Four wheels now, the wider the better.

Going to try some AE and Maf changes on a couple chips
today if the wind lets up, ( Hate Wind)

Have two baseline chips to fall back on.
A nice guy from California, Scott Hansen, who's into the
programing business, sent me a chip to try with my combo
and have to say, came closer than PcF did.
He uses DataMaster and I use TunerPro and never could
get DM to log with my laptop and AutoProm so I could send
him a result.

Let you know

Later

 

Do you have a WB O2? I think they are able to help you see the AE dip. AFR vs tps.

Also this 165 ecm only gives a readout every .1 sec so you might miss some of it.

I convert my data to a spread sheet. It is easier to sort, read, and even graph.

 

Don't have a WB O2 and the only thing I did in that
area was to install a heated O2 because old one was
located pretty far down the SLP headers and didn't want
it to coat up if running rich. Always turn and leave key on
for about sixty seconds before firing.
Don't know if that helps but idea

Wil probably get and install a spreadsheet program as
I move ahead.

Not a race car, but all the parts are in place to give a pretty good account for itself if I was a little younger.

Complete Spohn suspension, coilover front, Baer 13" front
brakes, Alum hubs ect.

Already on notice that (oil and plugs) only parts ever allowed again and even that will be open to her approval

But like you retirement project
Check out changes tomorrow, she said something about weeds today

Later