TBI Chips .com help! i need a drivable truck soon

[kingcat400]

it is not a zz4. the zz4 has different heads and higher compression.

mine is a 350 vortec with a zz4 cam.

this is the base motor before the cam so i am probably just nudging 320hp
http://www.chevroletperformance.com/...P&sku=12499529

[EagleMark]

With 61lb injectors that's about 28psi fuel pressure!

or a more realistic approach is

80lb injectors at 16psi...

[kingcat400]

that would be big block 7.4 injectors right?

[EagleMark]

Yes, or 74lb injectors at 17psi.

[kingcat400]

this is the log from today with the 74ib injestors at 16psi.

[EagleMark]

I'll give my feedback. Starting backwards from end of your log at idle.
Here's what I told you on page 1.

If I had only 50 MAP at idle and 10 to 15 degrees timing? I'd have more timing at idle and usually higher MAP. Do you have idle issues?

You now have 22.3 degrees timing with idle adjusted and guess what? Map is down to 36 MAP. Where it should be on this engine.

Bad news, and this is really the only bad news I have. Idle BLM are way to rich, going by your old logs where it idled and where it idles now is 2 different areas so I was off there, was also off on how I set up BLM learn tables, I gave way to much room for idle and now you don't need it, what does that mean? Idle and off idle BLM are sharing same cells except for designated idle cell, same with some off idle cells. To you it means nothing, to me it means I have to strip out data to adjust correct cells.

The rest of log BLM were in ballpark.

I'd have never have found any of this with your old logs because of this!
http://www.gearhead-efi.com/Fuel-Inj...LMs-every-time!

Your WOT AFR, going by the O2 sensor reading (which is all we have and not as accurate as a Wide Band O2 sensor) is just a little lean. Not bad. But guess what? Now that you have correct injectors there's plenty of fuel and room for adjustment.

There was only one spot of small knock in your WOT run, and I'm not convinced it's not false, but if it's real a little more fuel there and that should be gone. BTW this is with 7 degrees less timing then you had! All the knock settings in the chip and memcal you had were completely different then your stock BJYL memcal your truck came with so you may not have been getting correct knock counts or retard.

I see a couple spots that may need some AE Acceleration Enrichment? I added 100% to TPS AE (short term) and only 50% to MAP AE (long term), it looks like long term AE is needed and that would be the MAP AE. Are you getting some non responsive throttle, like bog, not crisp? Data looks lean here, this is hard to dial in sometimes as it can feel the same as rich, but data would go the other way.

Is transmission working properly now that you have a 1995 chip in your 1995 truck/transmission? The 1994 chip you had is for a different trans as TCC changed to PWM, completely different calibration in chip between the 2 years.

You should also be using the stock memcal that came with your truck along with the G1 adapter and chip.

How bout some driver feedback?

[EagleMark]

Yes, or 74lb injectors at 17psi.

this is the log from today with the 74ib injestors at 16psi.

should i ad more fuel psi to get rid of the lean at wot?

Yup, I told you 17 and you set it at 16. The VE tables are set high, it's easier to take out fuel then add and safer. But with the missing 1 psi I'd have to run VE higher then 90% which I don't like.

i take it that thread about my chip?

yep ug ha sounds good. jk.

should i ad more fuel psi to get rid of the lean at wot?

ya it is not crisp that i what i was talking about with the hesitation at low acceleration.

yes i am using the stock memcal on the g1

it drive good, much better then the other chips. the only thing i noted was the hesitation and the tcc locking up a little soon. seems to have alot better low end.

TCC settings are stock for your truck, with the motor build it's torque curve has moved up is why your felling the TCC is locking to early. We can reduce it... how much? 5 MPH?

Tell me more about the hesitation? If it's from dead stop at idle in gear it may be because idle fuel is way rich. If it's other areas it still may be short of AE.