downloading binary files for LS7??
Thread Starter
On The Tree
Joined: Oct 2005
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downloading binary files for LS7?? Do I have to buy and install on my computer, HPTuners, or some other software before I can download binary files such as those for the LS7 engine?
If so, after I download these bin. files, can I then download them to my 2001, LS1 PCM?
If so, after I download these bin. files, can I then download them to my 2001, LS1 PCM?
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
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From: Lake Zurich, IL
LS2/7 and LS1 PCMs are completely different so you can't just take an LS2 file and apply to an LS1 PCM.....
Also LS2/7 "binaries" are encrypted... if they're read by HP Tuners to start.. only HP Tuners can read them
Also... the LS2/7 files use 1mb of space... whereas the LS1 PCM (at least through 03) only uses 512kb so not possible
Also LS2/7 "binaries" are encrypted... if they're read by HP Tuners to start.. only HP Tuners can read them
Also... the LS2/7 files use 1mb of space... whereas the LS1 PCM (at least through 03) only uses 512kb so not possible
Thread Starter
On The Tree
Joined: Oct 2005
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So, since guys are running LS7 engines with 2001, LS1, PCMs how are they doing it? Ed Wright and John at Speartech will calibrate my PCM to run an LS7 but there must be some way I can do it myself if I can find out the values that run the LS7 engine.
TECH Fanatic
Joined: Aug 2005
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From: Sunny London, UK
Dude, people are using the ls1 pcm for all sorts of displacements.
As long as your sensors are ls1 based it doenst matter about the displacement or cam. You can just tune that in.
You can just make your own baseline VE table and spark table up. Use a stock tune for something like a z06 with the displacement configured correctly and auto or manual depending on what you have and I bet it starts ok. Then tune from there.
If you can view an LS7 tune you might be able to copy some of the tables over, but the basecode will be different.
As long as your sensors are ls1 based it doenst matter about the displacement or cam. You can just tune that in.
You can just make your own baseline VE table and spark table up. Use a stock tune for something like a z06 with the displacement configured correctly and auto or manual depending on what you have and I bet it starts ok. Then tune from there.
If you can view an LS7 tune you might be able to copy some of the tables over, but the basecode will be different.
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
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From: Lake Zurich, IL
^^^The issue w/the 06+ , in particular the LS7 is that it uses a 48 tooth reluctor wheel on the crank whereas LS1 uses a 24 tooth (or something like that... ) the 05 LS2 motors uses the same style reluctor ring as the LS1/LS6 motor... but in 06 they changed it ...
I would assume you could put the 24 tooth reluctor wheel in... but would require pulling the motor apart and hoping it goes back together with the same tolerances...
Also the way the 06+ LS2/LS7 calculates airflow and timing is different than the LS1 so can't really copy alot of tables over
I may be totally off base here... hopefully someone w/first hand experience can chime in and correct me if I'm wrong
I would assume you could put the 24 tooth reluctor wheel in... but would require pulling the motor apart and hoping it goes back together with the same tolerances...
Also the way the 06+ LS2/LS7 calculates airflow and timing is different than the LS1 so can't really copy alot of tables over
I may be totally off base here... hopefully someone w/first hand experience can chime in and correct me if I'm wrong
