10 Camaro LS3 with LSA blower tune review

[ryanvv355]

Hi guys, I got into this job after a local dyno tuner worked on it for 3 days and gave it back to the owner, incomplete.

Car is a 10 Camaro SS with an LSA blower, long tubes, cats deleted, JLT intake w/ LS3 MAF, thats it. Car runs, you can drive it. Made 530rwhp. But had crazy lean AFR drifts on some pulls, and rich drifts on other pulls. That's why the tuner kicked the job out.

I pull the attached tune out of the car and start looking at it, can anyone look at this and help me understand what is happening here?

Notable tables:
Gas PE EQ ratio 1.7 to 1.9????
MAF table (stock LS3 data) (JLT intake is larger diameter and should require MAF data change)
1 bar MAP data - he put the LSA ambient air pressure sensor in the manifold, and put the LSA 3 bar in the ambient position. Says the E38 will not read the 3 bar (false)

Is this a tuning technique I am not familiar with? PE table raping? My experience tells me to put final desired PE AFR in the EQ ratio table and tune the MAF and MAP for desired results?

Thanks

[Ben Charles]

Not on my PC, but sounds like PE raping and that setup won?t be able to fuel it on ls3 injectors...

Hope they don?t have LSA timing in that LS3 either..

Did a very similar setup about 6 months ago... we used ID1000s and worked great...

[ryanvv355]

The stock LSA injectors and E67 LSA data is in the ECM. The timing is 14-16 at WOT. The timing tune to me looks OK.

[5FDP]

It doesn't have the LSA data in that tune posted, it has the stock LS3 data from the looks of it. LSA injectors flow 56lb/hr where as that table is setup for 40's.

I do agree that you should kinda start over. Install the 3 bar MAP, plug the injector data, commanded a better target WOT AFR and adjust the MAF/VVE as required.

[SultanHassanMasTuning]

you will have to redo it all over, and check the injectors installed, if there is 1.9 in the PE. that more than PE Rape, goddamn!

[ryanvv355]

Thanks guys, I am going to start over on this one.

I did'nt even look at the injector data yet, it was different than LS3 data in a file compare so I just assumed he entered LSA data. Geezzz. I hope this practice does not happen a lot with dyno tuners.

[hufsresto]

Any time some one else has been in the data I Check all the important stuff.

[JekylHyde]

Thanks guys, I am going to start over on this one.

I did'nt even look at the injector data yet, it was different than LS3 data in a file compare so I just assumed he entered LSA data. Geezzz. I hope this practice does not happen a lot with dyno tuners.

Wow it just amazes me the more and more I see these things happening. Fire and forget mentality.

[veee8]

On a SS Camaro application with boost, I would get a hold of the 3.7 BETA software, and read the FPCM out and make changes on there too. They drop commanded fuel pressure as RPM increases stock.

[ryanvv355]

Thanks for the tip Veee8. I was able to get this one running really good in SD. Went MAF only, Scaled the MAF back 35% for the 123mm intake and its idling at 9.9:1 AFR on my wideband. Still working on this one, thinking the clutch is not going to last long!

No clue how the car was running on the tune I initially posted.