diff --git a/api/test/deals.go b/api/test/deals.go
index 82bf85235..c404492fc 100644
--- a/api/test/deals.go
+++ b/api/test/deals.go
@@ -42,7 +42,7 @@ func TestDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration) {
 	}
 	time.Sleep(time.Second)
 
-	data := make([]byte, 800)
+	data := make([]byte, 1600)
 	rand.New(rand.NewSource(5)).Read(data)
 
 	r := bytes.NewReader(data)
diff --git a/build/params_debug.go b/build/params_debug.go
index ac9efbbe6..943180186 100644
--- a/build/params_debug.go
+++ b/build/params_debug.go
@@ -10,7 +10,7 @@ func init() {
 	InsecurePoStValidation = true
 }
 
-var SectorSizes = []abi.SectorSize{1024}
+var SectorSizes = []abi.SectorSize{2048}
 
 // Seconds
 const BlockDelay = 6
diff --git a/chain/stmgr/forks_test.go b/chain/stmgr/forks_test.go
index 9357e0b8b..99770c01c 100644
--- a/chain/stmgr/forks_test.go
+++ b/chain/stmgr/forks_test.go
@@ -34,8 +34,8 @@ import (
 )
 
 func init() {
-	build.SectorSizes = []abi.SectorSize{1024}
-	build.MinimumMinerPower = 1024
+	build.SectorSizes = []abi.SectorSize{2048}
+	build.MinimumMinerPower = 2048
 }
 
 const testForkHeight = 40
diff --git a/chain/store/store_test.go b/chain/store/store_test.go
index 0264cf45a..ebbd3f440 100644
--- a/chain/store/store_test.go
+++ b/chain/store/store_test.go
@@ -15,8 +15,8 @@ import (
 )
 
 func init() {
-	build.SectorSizes = []abi.SectorSize{1024}
-	build.MinimumMinerPower = 1024
+	build.SectorSizes = []abi.SectorSize{2048}
+	build.MinimumMinerPower = 2048
 }
 
 func BenchmarkGetRandomness(b *testing.B) {
diff --git a/chain/sync_test.go b/chain/sync_test.go
index f1979f4e7..3a0122cf6 100644
--- a/chain/sync_test.go
+++ b/chain/sync_test.go
@@ -28,8 +28,8 @@ import (
 func init() {
 	build.InsecurePoStValidation = true
 	os.Setenv("TRUST_PARAMS", "1")
-	build.SectorSizes = []abi.SectorSize{1024}
-	build.MinimumMinerPower = 1024
+	build.SectorSizes = []abi.SectorSize{2048}
+	build.MinimumMinerPower = 2048
 }
 
 const source = 0
diff --git a/cmd/lotus-bench/main.go b/cmd/lotus-bench/main.go
index c7b2733f4..073e40973 100644
--- a/cmd/lotus-bench/main.go
+++ b/cmd/lotus-bench/main.go
@@ -56,7 +56,7 @@ func main() {
 
 	log.Info("Starting lotus-bench")
 
-	build.SectorSizes = append(build.SectorSizes, 1024)
+	build.SectorSizes = append(build.SectorSizes, 2048)
 
 	app := &cli.App{
 		Name:    "lotus-bench",
diff --git a/documentation/en/mining-troubleshooting.md b/documentation/en/mining-troubleshooting.md
index c3195c9f2..4fa97068b 100644
--- a/documentation/en/mining-troubleshooting.md
+++ b/documentation/en/mining-troubleshooting.md
@@ -51,7 +51,7 @@ If you suspect that your GPU is not being used, first make sure it is properly c
 First, to watch GPU utilization run `nvtop` in one terminal, then in a separate terminal, run:
 
 ```sh
-lotus-bench --sector-size=1024
+lotus-bench --sector-size=2048
 ```
 
 This process uses a fair amount of GPU, and generally takes ~4 minutes to complete. If you do not see any activity in nvtop from lotus during the entire process, it is likely something is misconfigured with your GPU.
diff --git a/lotuspond/spawn.go b/lotuspond/spawn.go
index f3ec830a7..db6b8b51b 100644
--- a/lotuspond/spawn.go
+++ b/lotuspond/spawn.go
@@ -23,7 +23,7 @@ import (
 )
 
 func init() {
-	build.SectorSizes = []abi.SectorSize{1024}
+	build.SectorSizes = []abi.SectorSize{2048}
 }
 
 func (api *api) Spawn() (nodeInfo, error) {
diff --git a/scripts/init-network.sh b/scripts/init-network.sh
index 0d8c0536b..b13c707b4 100755
--- a/scripts/init-network.sh
+++ b/scripts/init-network.sh
@@ -3,7 +3,7 @@
 set -xeo
 
 NUM_SECTORS=2
-SECTOR_SIZE=1024
+SECTOR_SIZE=2048
 
 
 sdt0111=$(mktemp -d)