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1st runs with TT alky chip DS logs included

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Blazer406

Mechanical Engineer
Joined
May 2, 2002
Messages
5,068
Hey guys,

Per Razor's advice b/c of too many things to mess with... since it wasn't tuned yet....... I bought a TT chip to try instead of my extender/translator setup for my LS1 MAF meter. Current mods in my sig. I put the factory MAF meter.. and maf hose... and installed a 14" K&N on the end of the MAF meter. I then installed the TT chip.. in my spare ECM.. and fired it up.... it idled good... sounded fine... so I took her out for a test drive..... ran about 10 minutes.. before I made the first run... had some knock... pulled over... and examined the log.... incresed the "blue knob" from about 50% to about 80%.... made another short blast... uphill... to about 80 mph..... pulled over and looked at the log.... knock looked good.... had to run to the store.... on the way home... I stopped on a long straightaway... cut alky back to about 60%... made a blast.... knock looked good...

All runs appear rich to me.... but I need to cut the boost up. My boost was set on about 20-21 psi with the big MAF pipe and LS1 MAF meter.... but only was 17 psi with the stock MAF meter....I think I will have enough fuel...when I get the boost up...I am not going to mess with the fuel... until I bump the boost up to at least 22-23 psi...

All runs felt lazy to me... but that is likely to be b/c of the boost only at 17 psi.... the last time I drove it... the boost was 20 psi +..... probably most of the lazyness I am feeling now... plus it is fat....


Would you guru's look at my logs and tell me if you see anything I might be missing....

All three runs... were on street tires... so you will see on the logs... that I couldn't floor it until about 30 mph or so.

I also put a word file in there to describe the conditions of each of the three runs....



DS Logs
 
Copy of email sent back..

:smile: Ok..

Couple things..

First..after you install a chip you need to drive it
around for a long while-- 10-15 minutes so it can
"learn" your car. If you look at run 11 and run 13
you'll see that the idle BLM is at 129 on the first
and 138 on the last(13).. meaning that the computer is
picking up a lean condition from the O2 sensor.. just
a tad..

When I see a screen full of 128's on the BLM grid... I
know it hasnt been driven and 'learned'

Next... get your TPS to go above 4.5.. I know Eric's
chips sometimes shouldnt matter..but a simple
adjustment of the TPS will get that number.

I see your MAT temps go up as the car picks up speed..
weird.. they should go down.. where is the sensor
located?

Your 2nd and third run look ok.. just need more boost.
Guess when the alky knob when up.. the knock went
down.

Also your tranny is not looking good on the 1-2 shift.
Check your fluid..make sure its over filled to the the
S on the dipstick. And make sure your getting full
extension on your TPS.

Drive the car around in stop and go traffic for a
little while. do a lot of decel.. kinda like gliding
to a stop.. that learns in the lower BL tables... If
the first cell is 138.. you have a leak(vacuum) that
needs to be addressed.. may be something simple like a
bad PCV valve.

HTH

Julio
 
Razor said:
:smile: Ok..

Couple things..

First..after you install a chip you need to drive it
around for a long while-- 10-15 minutes so it can
"learn" your car. If you look at run 11 and run 13
you'll see that the idle BLM is at 129 on the first
and 138 on the last(13).. meaning that the computer is
picking up a lean condition from the O2 sensor.. just
a tad..

When I see a screen full of 128's on the BLM grid... I
know it hasnt been driven and 'learned'

Next... get your TPS to go above 4.5.. I know Eric's
chips sometimes shouldnt matter..but a simple
adjustment of the TPS will get that number.

I see your MAT temps go up as the car picks up speed..
weird.. they should go down.. where is the sensor
located?

Your 2nd and third run look ok.. just need more boost.
Guess when the alky knob when up.. the knock went
down.

Also your tranny is not looking good on the 1-2 shift.
Check your fluid..make sure its over filled to the the
S on the dipstick. And make sure your getting full
extension on your TPS.

Drive the car around in stop and go traffic for a
little while. do a lot of decel.. kinda like gliding
to a stop.. that learns in the lower BL tables... If
the first cell is 138.. you have a leak(vacuum) that
needs to be addressed.. may be something simple like a
bad PCV valve.

HTH

Julio


I will drive it around some more..... the first run occurred about 10 minutes after starting to drive it with the new chip.....

On the TPS.... I would have messed with it the other day.... but it is already .46 volts at idle... Is it possible to adjust this so that the idle doesn't change... but WOT voltage comes up? I guess I need to mess with it.... wouldn't hurt to make sure I get WOT too (visually verify... with the throttle blades.....)

MAT temps...... I guess I am busted :eek: .... I put this stuff back in there kinda quick... the big K&N I have has no hole cut in it for the MAT sensor.... so it is just laying beside the filter...which both are inside the engine compartment...... I'll go buy a small hole saw today... and see if I can't get that booger in the proper location.....

As far as the tranny.... I'll check the fluid level.... it is likely on it's last leg.... it does have 143k miles on it.... and all it had to do for 139k miles of it's life... is pull around a stock motor... on stock boost... with someone who didn't gas on it that much...... I got a spare rebuilt BRF complete tranny.... that I need to install a few new hi-po goodies... and a tranny brake.... and I plan on installing it... maybe before the next track outing.....


Thanks for looking it over Julio... I'll try and get some of this stuff done.... and get back to you......
 
Razor said:
:smile: Ok..

Couple things..

First..after you install a chip you need to drive it
around for a long while-- 10-15 minutes so it can
"learn" your car. If you look at run 11 and run 13
you'll see that the idle BLM is at 129 on the first
and 138 on the last(13).. meaning that the computer is
picking up a lean condition from the O2 sensor.. just
a tad..

When I see a screen full of 128's on the BLM grid... I
know it hasnt been driven and 'learned'

Next... get your TPS to go above 4.5.. I know Eric's
chips sometimes shouldnt matter..but a simple
adjustment of the TPS will get that number.

I see your MAT temps go up as the car picks up speed..
weird.. they should go down.. where is the sensor
located?

Your 2nd and third run look ok.. just need more boost.
Guess when the alky knob when up.. the knock went
down.

Also your tranny is not looking good on the 1-2 shift.
Check your fluid..make sure its over filled to the the
S on the dipstick. And make sure your getting full
extension on your TPS.

Drive the car around in stop and go traffic for a
little while. do a lot of decel.. kinda like gliding
to a stop.. that learns in the lower BL tables... If
the first cell is 138.. you have a leak(vacuum) that
needs to be addressed.. may be something simple like a
bad PCV valve.

HTH

Julio

Sorry for highjacking the thread, but............what is the story behind making sure the tranny is "over filled" to the S mark? Why over fill it and what is the S mark? I'm still a newb and this sounds interesting lol.
 
Design of 2004r filter allows fluid only from top. Overfilling assures ample fluid when higher forces push the liquid to the back of the pan. Thus keeping proper line pressures. Thus keeping tranny from slipping.

One of his logs showed an abnormality on his 1-2 shift. Just making sure there is plenty of fluid in the tranny.

HTH
 
Razor said:
Design of 2004r filter allows fluid only from top. Overfilling assures ample fluid when higher forces push the liquid to the back of the pan. Thus keeping proper line pressures. Thus keeping tranny from slipping.

One of his logs showed an abnormality on his 1-2 shift. Just making sure there is plenty of fluid in the tranny.

HTH
Put in a 700r4 filter problem fixed,won't need the extra fluid :cool:
Ed
 
Razor said:
Design of 2004r filter allows fluid only from top. Overfilling assures ample fluid when higher forces push the liquid to the back of the pan. Thus keeping proper line pressures. Thus keeping tranny from slipping.

One of his logs showed an abnormality on his 1-2 shift. Just making sure there is plenty of fluid in the tranny.

HTH

Could it have possibly been tire slippage you saw Julio? I was on street tires... and I really couldn't floor it until maybe 20-30 mph....was on the edge of tire slippage until pulling in second gear good.
 
NEw runs... log files included

Made a few short blasts today on the street after I installed my new HP Walbro pump (F20000169)..... supposedly the replacement for the older 340. Here is a link to a zip file of the 3 runs:

Link to runs

Let me know if you see anything.
 
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