ECM Chip Burners?

Don't know much about the ECM in my 1994 Suburban.

Is it necessary to recalibrate if changing stroke, cam, heads, TBI? If so, does somebody burn chips for the modifications intended?

I'm planning a 383 stroker in a 1996 roller block with Vortec heads and dual plane TBI Intake, Comp 264HR Cam, the 670CFM Holley direct replacement TBI (claims 42%increased flow over stock), and Edlebrock shorty headers with EGR adapter & tube.

Any advice appreciated.

Thanks.

Try reading the stickies at the top of this page:

http://thirdgen.org/techbb2/forumdis...=20&forumid=16

OK

I've done a lot of reading on the subject and it would seem clear that "tuning" for a particular set of modifications via a "cookie cutter" chip swap is not likely to result in a high level of optimization.

It would appear however that the stock ECM IS capable of "self-adjusting" to modifications so long as they do not exceed stock tuning limitations, correct?

So I guess I'll just have to see if my modifications are going to exceed the capabilities of the stock ECM. If so, I guess I'm geeky enough to start down the path of custom chip burning.

My original question was intended to seek out anyone that has already done something similar and hopefully discover from their experience if my intended mods were going to exceed the stock tuning limitations - but after much reading on custom tuning the ECM it seems that relying on stock programming is not necessarily the most efficient thing to do for even a stock motor!

One of the people in TX that does extensive engine work, dyno work, head porting work, and ECM work is Fast355 on TGO. He's in the DFW area. Go look for his posts on TGO (Thirdgen.org).