Start up RPM hanging

[maalmull]

Hi guys,

what tables to correct hanging rpm's on the start up? when I start the vehicle it goes all the way to 2000Rpm's and hangs up there for 2-3 seconds then drops slowly to the desired set rpm!

any thoughts on how to fix this?

Thanks,

[joecar]

Post tune/log files.

How does it run otherwise...?

[maalmull]

Hi Joe,

The car runs great making 400/400+ rwhp & Tq on a 6.0, untouched rectangular port heads and a 220/230 117+4 cam on a truck with 32" tire .

Still believe it needs some fine tuning at idle and such...etc.

I played little bit with table B4604 [Startup RPM Offset] and seems that the problem has been resolved. But not quite sure if this the correct approach in such issues.

Any suggestions?

[joecar]

There's an idle tuning tutorial thread here, let me find it.

[maalmull]

There's an idle tuning tutorial thread here, let me find it.

Wondering if this tutorial covers startup

[400ss]

MAybe startup airflow and decay? post a log and tune file

[joecar]

Wondering if this tutorial covers startupIt doesn't.


MAybe startup airflow and decay? post a log and tune fileGodd idea... start with stock values and go from there.