diff --git a/spartan/aztec-network/templates/boot-node.yaml b/spartan/aztec-network/templates/boot-node.yaml
index bdce9e48b3d4..3967b6acfb35 100644
--- a/spartan/aztec-network/templates/boot-node.yaml
+++ b/spartan/aztec-network/templates/boot-node.yaml
@@ -177,6 +177,8 @@ spec:
               value: "{{ .Values.bootNode.p2p.enabled }}"
             - name: P2P_GOSSIPSUB_FLOOD_PUBLISH
               value: "{{ .Values.bootNode.p2p.floodPublish }}"
+            - name: P2P_MAX_TX_POOL_SIZE
+              value: "{{ .Values.network.mempoolLimitBytes }}"
             - name: COINBASE
               value: "{{ .Values.bootNode.coinbaseAddress }}"
             - name: VALIDATOR_DISABLED
diff --git a/spartan/aztec-network/templates/full-node.yaml b/spartan/aztec-network/templates/full-node.yaml
index 398aa9780962..2156b2d33aaf 100644
--- a/spartan/aztec-network/templates/full-node.yaml
+++ b/spartan/aztec-network/templates/full-node.yaml
@@ -110,6 +110,8 @@ spec:
               value: "1"
             - name: P2P_ENABLED
               value: "{{ .Values.fullNode.p2p.enabled }}"
+            - name: P2P_MAX_TX_POOL_SIZE
+              value: "{{ .Values.network.mempoolLimitBytes }}"
             - name: P2P_GOSSIPSUB_FLOOD_PUBLISH
               value: "{{ .Values.fullNode.p2p.floodPublish }}"
             - name: COINBASE
diff --git a/spartan/aztec-network/templates/prover-node.yaml b/spartan/aztec-network/templates/prover-node.yaml
index 5decc31384e8..7191cbd0b48a 100644
--- a/spartan/aztec-network/templates/prover-node.yaml
+++ b/spartan/aztec-network/templates/prover-node.yaml
@@ -160,6 +160,8 @@ spec:
               value: {{ .Values.proverNode.l1GasPriceMax | quote }}
             - name: P2P_ENABLED
               value: "{{ .Values.proverNode.p2p.enabled }}"
+            - name: P2P_MAX_TX_POOL_SIZE
+              value: "{{ .Values.network.mempoolLimitBytes }}"
             - name: P2P_GOSSIPSUB_FLOOD_PUBLISH
               value: "{{ .Values.proverNode.p2p.floodPublish }}"
             - name: P2P_PORT
diff --git a/spartan/aztec-network/templates/validator.yaml b/spartan/aztec-network/templates/validator.yaml
index 3c0c76a961a8..518cb7f6cf0f 100644
--- a/spartan/aztec-network/templates/validator.yaml
+++ b/spartan/aztec-network/templates/validator.yaml
@@ -121,6 +121,8 @@ spec:
               value: "1"
             - name: P2P_ENABLED
               value: "{{ .Values.validator.p2p.enabled }}"
+            - name: P2P_MAX_TX_POOL_SIZE
+              value: "{{ .Values.network.mempoolLimitBytes }}"
             - name: P2P_GOSSIPSUB_FLOOD_PUBLISH
               value: "{{ .Values.validator.p2p.floodPublish }}"
             - name: VALIDATOR_DISABLED
diff --git a/spartan/aztec-network/values.yaml b/spartan/aztec-network/values.yaml
index 54d14ba3f821..4acc40115b16 100644
--- a/spartan/aztec-network/values.yaml
+++ b/spartan/aztec-network/values.yaml
@@ -17,6 +17,8 @@ network:
   # If true then configured bootnodes are considered non-gossiping peers
   p2pBootstrapNodesAsFullPeers: true
 
+  mempoolLimitBytes: "100000000" # approx 100MB
+
 storage:
   localSsd: false
   dataStoreMapSize: "134217728" # 128 GB
diff --git a/spartan/aztec-network/values/rc-1.yaml b/spartan/aztec-network/values/rc-1.yaml
index 57b0ce89ae1e..287e04010c60 100644
--- a/spartan/aztec-network/values/rc-1.yaml
+++ b/spartan/aztec-network/values/rc-1.yaml
@@ -1,5 +1,6 @@
 network:
   public: true
+  mempoolLimitBytes: "10000000" # approx 10MB
 
 aztec:
   slotDuration: 36
diff --git a/yarn-project/aztec/src/cli/chain_l2_config.ts b/yarn-project/aztec/src/cli/chain_l2_config.ts
index 52755e6b8586..636650835748 100644
--- a/yarn-project/aztec/src/cli/chain_l2_config.ts
+++ b/yarn-project/aztec/src/cli/chain_l2_config.ts
@@ -22,6 +22,7 @@ export type L2ChainConfig = {
   seqMaxTxsPerBlock: number;
   realProofs: boolean;
   snapshotsUrl: string;
+  maxTxPoolSize: number;
 };
 
 export const testnetIgnitionL2ChainConfig: L2ChainConfig = {
@@ -41,6 +42,7 @@ export const testnetIgnitionL2ChainConfig: L2ChainConfig = {
   seqMaxTxsPerBlock: 0,
   realProofs: true,
   snapshotsUrl: 'https://storage.googleapis.com/aztec-testnet/snapshots/',
+  maxTxPoolSize: 100_000_000,
 };
 
 export const alphaTestnetL2ChainConfig: L2ChainConfig = {
@@ -60,6 +62,7 @@ export const alphaTestnetL2ChainConfig: L2ChainConfig = {
   seqMaxTxsPerBlock: 4,
   realProofs: true,
   snapshotsUrl: 'https://storage.googleapis.com/aztec-testnet/snapshots/',
+  maxTxPoolSize: 100_000_000, // approx 100mb
 };
 
 export async function getBootnodes(networkName: NetworkNames) {
@@ -125,6 +128,7 @@ export async function enrichEnvironmentWithChainConfig(networkName: NetworkNames
   enrichVar('PROVER_REAL_PROOFS', config.realProofs.toString());
   enrichVar('PXE_PROVER_ENABLED', config.realProofs.toString());
   enrichVar('SYNC_SNAPSHOTS_URL', config.snapshotsUrl);
+  enrichVar('P2P_MAX_TX_POOL_SIZE', config.maxTxPoolSize.toString());
 
   enrichEthAddressVar('REGISTRY_CONTRACT_ADDRESS', config.registryAddress);
   enrichEthAddressVar('SLASH_FACTORY_CONTRACT_ADDRESS', config.slashFactoryAddress);