MoviChip Turbo Anti Surge Controller (TASC) is designed to eliminate turbo surge electronically.
Enter the RPM & boost level where surge occurs, TASC does the rest
TASC by MoviChip
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Release Date: 1st Quarter 2025
How It Works
TASC opens the BOV/diverter valve during the user programmed window to eliminate surge.
To understand how opening the BOV/diverter helps eliminate turbo surge, check this article which explains what turbo surge is and how to solve it.
What’s Included With The Surge Controller
Control Unit
Bare Connector with Crimps (user makes their own loom)
Android App
What’s Necessary But NOT Included
Vacuum Reservoir (if engine does not have one)
One Way Check Valve
Silicone Hoses & T-Pieces
Fast Acting Solenoid Valve x2 (eg 3-Way MAC Valve)
Adjustable Settings via Android App
Boost Threshold
Set & adjust the boost window at which turbo surge occurs.
RPM Window
Set the RPM window where turbo surge occurs.
Duty Cycle
User adjustable duty cycle. If too much air is being bled reduce duty cycle and vice versa.
Surge Delete – FAQ
Surge is less but not eliminated, what do I need to do?
Assuming there is not a mechanical problem with engine eg wastegate control issue, increase duty cycle. If duty cycle maxed out, add additional/larger BOV/diverter valve.
How Do I Know If My Diverter Valve/BOV Is Large Enough?
This calculator gives a ball park figure on how much air is lost through an orifice.
With this number you can look at your turbo compressor map and assess how much air flow you need to bleed.
A typical diverter valve/BOV has an 18mm orifice. Theoretically, using the calculator above, at 15 PSI of boost, this will bleed around 12 lbs/min of air.
Look at your turbo compressor map to see if this is enough.
Information on reading compressor maps can be found on this website.
Will the diverter valve/BOV operate normally when turbo is out of surge?
Turbo Anti Surge Controller will bypass the normal signal going to the BOV/diverter valve when the engine is in the programmed boost and RPM window.
At other times the valve will operate normally.
The user needs to satisfy themselves that this is appropriate for their engine.
Why Not Reduce The Boost To Stop Turbo Surge?
Lower boost pressure means less power. MoviChip TASC allows us to keep our high boost target at lower RPMs.
How Can The Diverter Valve/BOV Be Activated Under Boost?
Instructions are included with the product.
How Do I Tune TASC?
Using the Turbo Anti Surge Controller Android App
