Take a look at my tune from a shop, is my IFR correct?

[BlackSS00FL]

Ok, got my car tuned by a reputable shop that I do trust. I bought HPtuners (again) to start tuning my car since I'm swapping from a t56 to a 4l80e. Anyways, car is a '98 camaro with an lq4 that has milled 799 heads, 236/242 cam, racetronix 42lb injectors, bolt ons, and 4.11 gears. I notice that after I downloaded my tune that the ifr tables look to be setup for 32lb injectors and not 42lb injectors. All the other tables look stock for injectors. I do trust that he tuned it right and has been running well. But, I don't know if he did some other tricks somewhere to compensate for tuning the injectors that way....or maybe he just thought I said 32lb injectors. Anyways, here's the tune if anyone wants to take a look and tell me if it's set up right for the 42lb injectors or if it needs to be changed.

[smokestack]

Do you have any logs? Thats important to post as well

[BlackSS00FL]

Do you have any logs? Thats important to post as well

Nope, car is currently sitting on my lift waiting for the 4l80e to go in.

[edcmat-l1]

It ain't bad. The airflow tables (MAF/VE) are adjusted to make up for the difference in IFR. They're both abnormally low.

I'm pretty sure I know who tuned it just by looking at it.

[BlackSS00FL]

It ain't bad. The airflow tables (MAF/VE) are adjusted to make up for the difference in IFR. They're both abnormally low.

I'm pretty sure I know who tuned it just by looking at it.

figured it'd be something like that. Didn't doubt that it wasn't tuned right, just making sure there wasn't a communication problem with what injectors I had. Thanks for checking it out!

[gn2beatu]

Your MAF table isnt very smooth. You can hand smooth it. Make sure you go to 2D mode and use FULL screen. Get rid of the dips and peaks - and make it a nice perfectly smooth slope upward. Here is a your table smoothed for you to look at and try.

0.2739 0.3255 0.3793 0.4371 0.4991 0.5694 0.6438 0.7265 0.8164 0.9135 1.0200 1.1357 1.2690 1.2814 1.4230 1.5677 1.8777 2.0637 2.2663 2.4802 2.7200 2.9566 3.2315 3.5374 3.8660 4.2091 4.5605 4.9170 5.2797 5.6518 6.0507 6.4878 6.9611 7.4902 8.0834 8.7344 9.2966 9.8536 10.5564 11.3242 12.0248 12.5777 13.3021 13.9005 14.6249 15.2243 16.1058 16.8468 17.5702 18.3111 18.8940 19.6339 20.5164 21.2408 22.0479 23.0039 23.9680 25.0707 25.9904 27.0445 28.3125 29.3594 30.8010 32.0752 33.8950 35.5113 37.7166 39.9209 41.6849 44.0990 45.9281 47.8400 49.8407 51.9354 54.1035 54.8569 54.8569 54.8569 54.8569

Your VE table has issues too. Your 55kpa has higher numbers than the 60 does in areas. Look at it in full screen 2D mode. If you want to try the smoothed version of your VE, just copy and paste the values below into the VE table and look at the differance. Bet you the changes I made make the transitions better, and your trims will be more consistant. See how the MAP lines have even spacing between the differant values. He has them going up and down from not getting enough samples most likely. Try the one below to see how you like it and then check your trims and adjust as needed. Or send me a PM with a 20 minute log of stop and go and some cruising and I will help you with the adjustments.

33.7 35.6 37.1 38.6 39.0 40.0 41.2 41.6 42.9 44.8 44.4 44.3 43.5 42.9 42.7 42.5 42.5 42.5 42.5 42.5
36.2 38.5 41.0 42.0 42.7 44.1 46.3 47.5 49.9 51.3 51.7 51.1 50.7 50.4 50.3 50.2 50.2 50.2 50.2 50.2
39.6 42.2 44.4 46.1 46.9 48.3 50.7 53.1 55.8 57.3 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6
42.1 44.8 47.2 49.2 50.4 52.4 55.1 57.4 59.8 61.9 63.7 64.5 64.4 64.0 64.2 64.2 64.2 64.2 64.2 64.2
43.7 46.6 49.2 51.6 53.4 55.5 57.8 60.0 62.6 64.9 67.2 67.8 68.1 67.8 68.0 68.1 68.1 68.1 68.1 68.1
45.1 48.3 51.2 53.8 55.6 57.6 59.5 62.0 64.8 67.4 70.0 71.3 71.6 71.6 71.8 72.0 72.0 72.0 72.0 72.0
46.9 50.2 53.0 55.6 57.3 59.4 61.5 63.8 66.8 69.4 72.0 73.5 74.3 74.6 75.0 75.1 75.1 75.1 75.1 75.1
48.9 51.6 54.5 57.1 59.0 61.0 63.1 65.6 68.7 71.4 73.8 75.3 76.3 77.1 77.6 77.7 77.7 77.7 77.7 77.7
50.2 52.7 55.3 57.7 59.5 61.7 63.7 66.4 69.3 72.1 74.7 76.6 78.0 79.0 79.4 79.6 79.7 79.7 79.7 79.7
51.2 53.8 56.1 58.3 60.4 62.4 64.4 67.1 70.1 72.6 75.2 77.2 78.5 79.6 79.8 80.1 80.2 80.2 80.3 80.3
52.1 54.5 57.0 58.9 61.1 63.0 65.0 67.7 70.6 73.2 75.5 77.5 79.0 80.0 80.5 80.7 80.8 80.8 80.8 80.8
53.1 55.4 57.3 59.5 61.5 63.7 65.8 68.7 71.6 74.3 76.6 78.4 80.0 81.0 81.5 81.7 81.7 81.7 81.7 81.7
54.2 56.3 58.1 60.3 62.3 64.4 66.7 69.5 72.3 74.9 77.2 79.2 80.8 81.7 82.2 82.4 82.5 82.5 82.5 82.5
54.8 57.0 58.8 61.1 63.0 65.1 67.4 70.1 72.8 75.5 77.8 79.8 81.3 82.2 82.7 82.9 82.9 82.9 82.9 82.9
55.4 57.4 59.5 61.7 63.7 65.9 68.2 70.7 73.3 75.9 78.2 80.2 81.7 82.5 83.1 83.2 83.2 83.2 83.2 83.2
55.8 58.3 60.4 62.5 64.6 66.7 69.0 71.4 73.8 76.2 78.4 80.4 81.9 82.7 83.2 83.4 83.4 83.4 83.4 83.4
56.6 58.8 61.2 63.6 65.7 67.6 69.7 72.0 74.3 76.6 78.7 80.5 81.9 82.7 83.2 83.4 83.4 83.4 83.4 83.4
57.0 59.1 61.9 64.4 66.5 68.4 70.4 72.5 74.7 76.8 78.8 80.6 81.9 82.6 83.1 83.2 83.3 83.3 83.3 83.3
57.5 59.8 62.5 65.2 67.3 69.2 71.1 73.0 75.0 77.0 78.9 80.6 81.9 82.6 83.1 83.2 83.3 83.3 83.3 83.3

Give it a shot, and see if this helps.

[BlackSS00FL]

Thank you. I'm sure the VE is a result from not hitting all the cells as it was just a normal 3-4 hour tune session. Car is currently down without a transmission, waiting on me to finish putting together the 4l80e. Since I gotta put in an A4 write entire, I figure I'll start from scratch to learn the entire tuning process. I'll always have this file/tables to help me if I get stuck and can't get something right.

[edcmat-l1]

Smoothing is over rated. Especially when it comes to VEs and spark tables. Just take a look at a C5 Z06 VE table. Not exactly smooth. Give the engine what it wants. Don't worry about how pretty it looks.

[LSxpwrdZ]

Generally on most setups I get smooth VE tables that gradually increase with rpm and map value however certain valve events at a certain rpm and load will cause resonance in the port and cause funny readings and somewhat jagged VE's. Almost every stock 5.3 or 6.0 gen3 truck I have tuned has a funky dip around 1600 or 2000 (can't remember exactly, I'm typing this on my phone). In some spots you will see a spike all the way up the load column at a certain rpm.

Rpm can't easily be smoothed but I do believe the different load points on a column of rpm can be with great success. Like said, give the engine what it wants.

[SSUte01]

Smoothing is over rated. Especially when it comes to VEs and spark tables. Just take a look at a C5 Z06 VE table. Not exactly smooth. Give the engine what it wants. Don't worry about how pretty it looks.

Fucking Amen!

The amount of re-tunes I've seen recently with tabletop smooth tables various is ridiculous. One was so lean it had all but destroyed the current plugs and who knows what other irreversible damage - it'll be solved. Sure, it needs be realistic, but a real world engine is not a theoretical pump and will have some anomalies and imperfections.

[01ssreda4]

The airflow tables (MAF/VE) are adjusted to make up for the difference in IFR. They're both abnormally low.

Why would someone do this??

[Asylumwarp]

Fucking Amen!

The amount of re-tunes I've seen recently with tabletop smooth tables various is ridiculous. One was so lean it had all but destroyed the current plugs and who knows what other irreversible damage - it'll be solved. Sure, it needs be realistic, but a real world engine is not a theoretical pump and will have some anomalies and imperfections.

Hmmm.... Sounds like a reference to ... maybe us?

[edcmat-l1]

Why would someone do this??

To make it work.

[SSUte01]

Hmmm.... Sounds like a reference to ... maybe us?

Not unless you changed hemispheres and got me to tune your car. If I was going to make a reference to you I would make it directly. My comment was based around people prioritising aesthetics over actual valid data. No reference to anyone on this forum

[Asylumwarp]

Yeah i dont know what all this smoothing is about. Seems like you would want it to be right, instead of looking good.

[S2H]

Smoothing is over rated. Especially when it comes to VEs and spark tables. Just take a look at a C5 Z06 VE table. Not exactly smooth. Give the engine what it wants. Don't worry about how pretty it looks.

smoothing is not over rated...
but over smoothing is wrong to do...

smooth is also a subjective term... the stock c5zo6 table is actually pretty dam smooth...
same goes for the spark tables... they are pretty smooth...


you do need to do some hand blending....nothing too crazy... but if the values have weird spikes, its just not gonna run the best it can...
and its not going to be perfectly smooth either...but it should not have drastic changes from once cell to the next and then back down to what it had previously..