Dyno tune starting point for heads & cam LS1

[gto_in_nc]

OK, that's the plan, then! I'll have them do a dyno pull pre-mods as a baseline (and log it just for grins.) Then I'll log a final pull before we pull it out of the bay. Then I'll AutoVE in 2-hour blocks on the 12-hour drive home.

For what it's worth, I'm having the work done by Precision Motorsports of Florida (PM-FL), near Tampa.

My thanks to all of you!

[mr.prick]

heads and cam are going to change the way your VE table will need to be.
be warned when going into open loop the first time with out some modification to it , you will probably run rich.
i was tuned by "pros" that didn`t touch my VE table so my first time in open loop was quite shocking (10AFR).
make sure they shape your VE table or don`t bother.
it will be very difficult to tune yourself from stock VE table.
i actually had a guy here give me a general VE table to start from otherwise i would have been left in the dark.

[gto_in_nc]

Thanks, Mr. Prick. I was thinking rich but not THAT rich! (I have to tell on myself here - I somehow botched my original LC-1 config and was wondering why my AFR didn't change as I changed VE the first time, according to AutoVE - then the CEL came on and I realized how freakin' pig-rich I'd made it!)

Based on your feedback, and that of dfe1, I have decided to pay them the extra cost for an HPT license and make them "do their thing". Since this is one of their heads & cam packages, I'll trust that they have a valid starting point and procedure, and then I'll verify with an immediate AutoVE cycle. Plus I'll watch the whole dyno time and will make sure I log the final pull. I'm also going to read and write the PCM from ScanTune before I leave the garage bay.

The pricing for the tune was "almost free" with everything else bundled together so even if they only do a half-assed partial-throttle job, I'll be happy.

I've also enquired with them about their tuning process...

Thanks again, guys!
Brian

[mr.prick]

if they are cool with efi live go ahead and let them use it
(if you trust them with it)
i`m just saying let them do it they`re way unless they`re way is to trick the car with fuel trims and sky high PE ratio
(you won`t know that until they`re done)
because if that is how they tune
(i`m not saying it is)
then when you go to make some adjustment you will run into trouble.
ask questions and check references.

[joecar]

Just make sure they do not lock the PCM.

[gto_in_nc]

I've let them know that I might want to just have them do it with HPT and that, in that case, I would like to watch them tune plus I would want to log a final dyno pull with FlashScan and that I'd want to read & write the PCM from FlashScan before pulling it out (to make sure they haven't locked the PCM or otherwise rendered it inaccessible.)

I also asked if they could tell me a little about their methodology.

Thank again!