For mild cams an idle ignition timing advance of approximately 16 18 degrees will do. On this episode of tuned we dive into explaining cam surge on hp tuners software with this ls7 z06 with some goodies.
Custom 5 Star Tune With Hp Tuners Ngauge Page 7 Ford
Hp tuners idle surge. If you have the airfuel ratio set properly and your engine can idle somewhat decently even if its by holding the throttle pedal down off closed throttle to keep the engine from stalling you can begin by setting a ball park ignition advance value. Now enhancing these to new heights with a new feature rich vcm editor and vcm scanner coupled together with the latest generation mpvi2 this is only tuning and diagnostic solution youll ever need for your modern obdii vehicle. Gm engine idle idle rpm. This car cam to us with a blown ls7 we then got a new motor put some new new. Idle the pcm has a number of parameters that influence the idle behavior of the engine. So very low airmass values.
Get your own hp tuners mpvi2 with 2 universal credits. As a guideline it should be about 30 degrees cooler than your engine normally runs. Httpsamznto2vovedk visit the grg amazon store to see what all toolsequipmentgear the garage uses to tune. These parameters control the desired idle rpm and the behavior of the idle air control iac motor or electronic throttle control etc during idle conditions. So i finally dropped the hammer on a cam tsp 232234 on 111 lsa running sd closed loop so im almost finished ve tuning including wot and im now working on cam surge. If it runs at 180 when warm then 150 is your target this is typical for a 160 thermostat.
Cams with negative overlap up to zero set idle to 850 900 all cells across the board add 1 gsec to idle airflow across the board both in pn and in gear hpt engine idle idle airflow base running airflow add 2⺠of idle timing 1200 rpm and under and 008 028 gcyl inclusive hpt engine spark control spark advance idle spark advance in park. The iac is controlled via a desired airflow value that has many. Ive already pulled 4 6 degrees ranging from 1000 1600 rpms at the top of my timing table and im still getting a little surge under 1 throttle. Hp tuners the home of vcm suite and the mpvi since 2003. While you have your file open set your min temp for adaptive idle to an appropriate temperature hpt engine idle idle rpm adaptive idle rpm min ect.
Gallery of Hp Tuners Idle Surge
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