E38 Differences 2008 vs 2009

[BlkLS3]

My 08 Corvette with E38 has the 63.5 lb limit in the IFR table. I have looked at tune for 2009 Corvettes, also using the E38 and they do not have the limit.
Can I upgrade the OS on my ECM, or switch to a 2009 ECM to get around the limit?

[IDRIVEAG8GT]

Chris and Bill have a new Beta with support for a variation of different things. I'm waiting on the update so I get the Big MAF table.

[[email protected]]

Chris and Bill have a new Beta with support for a variation of different things. I'm waiting on the update so I get the Big MAF table.

Do you know when this beta will be released? That will help me to setup my 80lbs injectors properly instead of scaling them.

[carlrx7]

I think you will still exceed the 1.36 g/cyl limit on the spark table.

[BlkLS3]

I think you will still exceed the 1.36 g/cyl limit on the spark table.

Hadn't thought about that. Scaling with the A6 has not been working so well in the tests I've done and I'm exploring some alternatives.

[BlkLS3]

Chris and Bill have a new Beta with support for a variation of different things. I'm waiting on the update so I get the Big MAF table.

This might be just what I need

[IDRIVEAG8GT]

Here's the link to the thread I was talking about.

http://www.hptuners.com/forum/showth...ed+density+set

[BlkLS3]

Here's the link to the thread I was talking about.

http://www.hptuners.com/forum/showth...ed+density+set

Thanks

[IDRIVEAG8GT]

Your welcome. Is that what you wanted?

[BlkLS3]

Your welcome. Is that what you wanted?

That is a big thread. I want to do some reading and I'll post up after.

[Bill@HPTuners]

My 08 Corvette with E38 has the 63.5 lb limit in the IFR table. I have looked at tune for 2009 Corvettes, also using the E38 and they do not have the limit.
Can I upgrade the OS on my ECM, or switch to a 2009 ECM to get around the limit?

You'll likely fry your pcm if you try and do so, GM changed the internals of the E38 pcm's over the last few years, we made a sticky about it

I think you will still exceed the 1.36 g/cyl limit on the spark table.

Most of the later 2008+ operating systems you can actually adjust the spark axis.

[carlrx7]

You'll likely fry your pcm if you try and do so, GM changed the internals of the E38 pcm's over the last few years, we made a sticky about it



Most of the later 2008+ operating systems you can actually adjust the spark axis.

[BlkLS3]

You'll likely fry your pcm if you try and do so, GM changed the internals of the E38 pcm's over the last few years, we made a sticky about it



Most of the later 2008+ operating systems you can actually adjust the spark axis.

Guess I better look at the sticky next. Thanks to all who contributed so far.

[LSX378]

I think you will still exceed the 1.36 g/cyl limit on the spark table.

That's an editable axis anyways.

Am pretty sure the 08 and the 09 run a different brake controller which makes plugging an 09 ECM in an 08 a possible non runner - cant recall the exact details. But from memory thats the only major difference. There was a conversion done to put a '10 controller in an '09 so that the launch control worked, but apparently the '08 EBC is too different.

Dont flash an 09 tune into an 08. It is generally terminal.

[BlkLS3]

Looks like I'm back to scaling the tune or finding out if I can live with smaller injectors. Any other suggestions are appreciated.

Thanks again to all. Lots of really great information here.