diff --git a/sims/arbcore-dac-add.sim.ts b/sims/arbcore-dac-add.sim.ts
new file mode 100644
index 0000000000..ef38f07365
--- /dev/null
+++ b/sims/arbcore-dac-add.sim.ts
@@ -0,0 +1,41 @@
+/**
+ * @notice Simulation configuration file for AIP 7
+ */
+import { ethers } from 'ethers'
+import { SimulationConfigNew } from '../types'
+
+const ARBSYS = '0x0000000000000000000000000000000000000064'
+
+
+// from https://github.com/ArbitrumFoundation/governance/blob/6c1af17352f218885d0488ecd9efacb3359c9161/scripts/proposals/non-emergency/data/42161-dac-update-data.json
+const txInfo = {
+  arbSysSendTxToL1Args: {
+    l1Timelock: '0xE6841D92B0C345144506576eC13ECf5103aC7f49',
+    calldata:
+      '0x8f2a0bb000000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000014000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003f48000000000000000000000000000000000000000000000000000000000000000010000000000000000000000003fffbadaf827559da092217e474760e2b2c3cedd000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000841cff79cd000000000000000000000000def5cfe3246882bc7f65f9346a8b974ba27d3f4e00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000004b147f40c0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
+  },
+}
+const iface = new ethers.utils.Interface(['function sendTxToL1(address,bytes)'])
+const calldata = iface.encodeFunctionData('sendTxToL1', [
+  txInfo.arbSysSendTxToL1Args.l1Timelock,
+  txInfo.arbSysSendTxToL1Args.calldata,
+])
+
+const call1 = {
+  target: ARBSYS,
+  calldata: calldata,
+  value: 0,
+  signature: '',
+}
+
+export const config: SimulationConfigNew = {
+  type: 'new',
+  daoName: 'ArbCore',
+  governorType: 'arb',
+  governorAddress: '0xf07ded9dc292157749b6fd268e37df6ea38395b9',
+  targets: [call1.target], // Array of targets to call.
+  values: [call1.value], // Array of values with each call.
+  signatures: [call1.signature], // Array of function signatures. Leave empty if generating calldata with ethers like we do here.
+  calldatas: [call1.calldata], // Array of encoded calldatas.
+  description: 'Update DAC Simulation',
+}