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View Full Version : How Should a BLM Graph Look when finished tuning?



Dom
09-27-2019, 04:20 AM
So after over tuning BLMs the graph looks very spiky, BLMs look good.
The near ideal graph, low map range don't look right.

I attached bin file and XDF file (twice) I think those are the files needed.

dave w
09-27-2019, 07:34 AM
The pictures below are from a similar TBI Vortec 350. The cam and exhaust are not the same, but similar. The throttle body is not the same, factory 670 CFM with 5235231 injectors / stock pressure regulator.

dave w

Dom
10-01-2019, 10:07 PM
Thanks Dave.
I went back to the original bin I got from you and try again if needed.
I read from another thread that if the BLMs are with in 6 from 128 they are close enough, so BLMs from 123 to 133 would be good.