How did everyone learn to tune?
Are there any good references to the inner workings of the LS1 PCM? I've been reading through the Holden LS1 reference located at http://carprogrammer.com/Z28/PCM/LS1/Holden_LS1.pdf but feel that it's a little more technical to start out with. I'd prefer something a little more general if possible.
Those of you who say to start with learning the PCM, could you post where I could find the material that you started out with?
Thanks!
Are there any good references to the inner workings of the LS1 PCM? I've been reading through the Holden LS1 reference located at http://carprogrammer.com/Z28/PCM/LS1/Holden_LS1.pdf but feel that it's a little more technical to start out with. I'd prefer something a little more general if possible.
Those of you who say to start with learning the PCM, could you post where I could find the material that you started out with?
Thanks!
It's a great way to put a visualization to the text.

Re-reading through many of these posts it seems like the best path to approach this from is to research a "dumbed down" EFI setup such as the the Fox body mustangs and work my way up from there.
I guess I'm looking for the text to put to my visualization
. I'm looking for reading material more geared toward EFI theory rather than down and dirty technical. If anybody could post a link I'd greatly appreciate it.EDIT: PadreSmith, thanks for posting info on the book. I'll definitely have to check it out.
Last edited by Rhino; Jul 2, 2007 at 01:59 PM.
The Best V8 Stories One Small Block at Time

Last edited by TAQuickness; Jul 22, 2007 at 11:31 PM.
A roadrunner is not needed for most people. Unless you just like to learn or tune alot of cars ect..
Sorry for asking so many questions, it's almost impossible to get clear picture of what is needed to tune the car
You dont have to just buy the scan tool if you dont want to. You can buy the full v1 tuning kit.
The scan tool has what are called bi-directional controls which means you can command timing on the fly and change fuel commanded on the fly also without a roadrunner. But you would need to stop the vehicle and shut off the car and set up and modify the tune with what you saw it needed.
You can call us durring biz hours and i would be more than happy to talk with you and explain anything you would ask. It isnt really as complicated as all our posts sound.

What was the $500 you quoted in post #75 - wasnt't it for FlashScan V1?
Please explain a bit further on the scan tool... If I have RoadRunner PCM, then Scan tool ($250) is sufficient to make updates on-the-fly, with engine running?
If using Scan tool without Roadrunner, I can make changes to all maps (or just fuel and timing?), but have to shutdown the engine for every change?

Still learning and will for some time to come .







Is it so?