Good Evening folks. I'm a somewhat inexperienced tuner, 95% of what I tune are cam swapped stuff here in my shop and personal stuff. I do LS swaps and most of my customers just want stock engines with a cam that sounds good.
With that being said, I had a friend drop of a car with a redone engine. The car is running a Speed Density OS and looks to have the 02 Sensors turned off along with LTFT. It does have a wideband.
2002 F-body with LS1 Car was cammed and Speed Density tuned by another tuner at one point for the initial cam swap. BTR N/A stage 3 cam.
New Parts with engine rebuild
243 heads ported by Wilkes Performance
Fast 102 with Holley 102 TB (I changed the ETC scalar from .0255 stock to .01875 per calculation)
42lb btr injectors (I changed the injector data in the existing tune)
104 lid
Car has full length headers and exhaust also.
I added 4 g/s on 12084 Idle Airflow table to everything >46 degrees.
Car ran and drove a couple seasons on the tune that is attached, minus a couple changes I made to try and get it fired up.
The car is running a Speed Density OS and looks to have the 02 Sensors turned off. I have done one SD tune on my 02 turbo camaro, so I'm new to SD stuff.
For the life of me, I can't get it to fire for more than a split second.
I went thru The Tuning Schools Heads/Cam process tree to no avail. I've been thru countless videos and threads the past 2 days, with no luck. I could use some guidance.
There is one thing, that I have not done, that I normally would. TTS taught us to not use someone else's tune, to grab a tune from their repository and start fresh.
Thanks for the help and guidance Gents. And if I'm an idiot, I'll will take my licks along with some learning.