diff --git a/test/functional/feature_assumevalid.py b/test/functional/feature_assumevalid.py
--- a/test/functional/feature_assumevalid.py
+++ b/test/functional/feature_assumevalid.py
@@ -193,7 +193,7 @@
         for i in range(2202):
             p2p1.send_message(msg_block(self.blocks[i]))
         # Syncing 2200 blocks can take a while on slow systems. Give it plenty of time to sync.
-        p2p1.sync_with_ping(200)
+        p2p1.sync_with_ping(960)
         assert_equal(self.nodes[1].getblock(
             self.nodes[1].getbestblockhash())['height'], 2202)
 
diff --git a/test/functional/feature_block.py b/test/functional/feature_block.py
--- a/test/functional/feature_block.py
+++ b/test/functional/feature_block.py
@@ -1002,7 +1002,7 @@
             self.save_spendable_output()
             spend = self.get_spendable_output()
 
-        self.sync_blocks(blocks, True, timeout=180)
+        self.sync_blocks(blocks, True, timeout=960)
         chain1_tip = i
 
         # now create alt chain of same length
@@ -1014,14 +1014,14 @@
 
         # extend alt chain to trigger re-org
         block = self.next_block("alt" + str(chain1_tip + 1))
-        self.sync_blocks([block], True, timeout=180)
+        self.sync_blocks([block], True, timeout=960)
 
         # ... and re-org back to the first chain
         self.move_tip(chain1_tip)
         block = self.next_block(chain1_tip + 1)
         self.sync_blocks([block], False, request_block=False)
         block = self.next_block(chain1_tip + 2)
-        self.sync_blocks([block], True, timeout=180)
+        self.sync_blocks([block], True, timeout=960)
 
     # Helper methods
     ################
diff --git a/test/functional/feature_dbcrash.py b/test/functional/feature_dbcrash.py
--- a/test/functional/feature_dbcrash.py
+++ b/test/functional/feature_dbcrash.py
@@ -51,8 +51,7 @@
     def set_test_params(self):
         self.num_nodes = 4
         self.setup_clean_chain = False
-        # Need a bit of extra time for the nodes to start up for this test
-        self.rpc_timeout = 180
+        self.rpc_timeout = 480
 
         # Set -maxmempool=0 to turn off mempool memory sharing with dbcache
         # Set -rpcservertimeout=900 to reduce socket disconnects in this
diff --git a/test/functional/feature_pruning.py b/test/functional/feature_pruning.py
--- a/test/functional/feature_pruning.py
+++ b/test/functional/feature_pruning.py
@@ -103,6 +103,7 @@
                            ["-maxreceivebuffer=20000", "-blockmaxsize=999000",
                                "-noparkdeepreorg", "-maxreorgdepth=-1"],
                            ["-prune=550"]]
+        self.rpc_timeout = 120
 
     def setup_network(self):
         self.setup_nodes()
diff --git a/test/functional/wallet_backup.py b/test/functional/wallet_backup.py
--- a/test/functional/wallet_backup.py
+++ b/test/functional/wallet_backup.py
@@ -52,6 +52,7 @@
         # nodes 1, 2,3 are spenders, let's give them a keypool=100
         self.extra_args = [["-keypool=100"],
                            ["-keypool=100"], ["-keypool=100"], []]
+        self.rpc_timeout = 120
 
     def setup_network(self):
         self.setup_nodes()