I have a 2013 zl1 with a TSP stage 3 cam. I added the NW 102mm TB and im having an issues with surging. When I'm rolling the gears and going anything over 30mph if I throw the car into neutral and coast the rpms will slowly fall and over shoot the target idle speed and then the rpms will shoot straight up and then it surges for 10 seconds till it calms down. Can anyone tell me what obvious mistake I'm making?
Thanks in advance
2013 zl1 cam nw 102 rev1.hpt
street run.hpl
Noticed your ETC scalar is high, for starters, lower your etc scalar to 7,130.6250 for the 102mm throttle body. Try matching your vss to your target idle speed, its 50 rpm below your target.
2000 WS6 Trans Am LS3, Tick Performance Stage 2 cam, ARH 1 7/8" Headers, FLT Level 6 4L60e, Circle D 5c Launching on a 200K 10 Bolt
2001 Camaro SS M6 Black on Black
Originally Posted by regorih
Yep 7150 is what it calcs as. Then there are just 2 other tables 12940, 12941, 12942. Multiple all vales in each of the tables by 1.2
2012 ZL1 - Maggie Heartbeat, Port & Polish Heads, Custom Cam, Custom rotating assembly, steel sleeved LS9, No NOS and No water meth. 16psi
810rwhp and 820rwtq 91 Octane 6400 rpm
948rwhp and 951rwtq 105 Octane 6400 rpm
999rwhp and 997rwtq on 60% Ethanol 6400 rpm
Holy thread revival.
Do you need to change the Airflow minimum tables for a dbw NW102 as well as 12940, 41, and 42? I changed the scalar and airflow minimum table on my car and it still surges slightly sometimes. Going to try changing the above tables as well and see how it doesn
Hey man, glad you bought this thread up. Could you please post back what you thought of the requested airflow table adjustments please? Curious to see what they do.
Seems to have helped. I will need to watch the tach/take a log to see if it still surges but i am pretty sure it has been reduced a lot. I haven?t noticed it at least since changing it last night
I had that problem too and i adjusted my adaptive idle spark control overspeed and underspeed brought them both down closer to 0 and that seemed to help alot with my surging
Still have some surging with it but it seems to have been improved. Its tough getting this throttle body dialed in correctly lol
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