diff --git a/erigon-lib/opstack/rollup_cost.go b/erigon-lib/opstack/rollup_cost.go
index a82b3e4f00a..9c551c840b1 100644
--- a/erigon-lib/opstack/rollup_cost.go
+++ b/erigon-lib/opstack/rollup_cost.go
@@ -143,6 +143,11 @@ func NewL1CostFunc(config *chain.Config, statedb StateGetter) L1CostFunc {
 		l1BaseFeeScalar, l1BlobBaseFeeScalar := extractEcotoneFeeParams(l1FeeScalars[:])
 
 		if config.IsOptimismFjord(blockTime) {
+
+			log.Info("WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW")
+			log.Info("W", "l1BlobBaseFee", l1BlobBaseFee.String(), "l1BlobBaseFee", l1BlobBaseFee.String(),
+				"l1BaseFeeScalar", l1BaseFeeScalar.String(), "l1BlobBaseFeeScalar", l1BlobBaseFeeScalar.String())
+
 			return NewL1CostFuncFjord(
 				&l1BaseFee,
 				&l1BlobBaseFee,
@@ -399,6 +404,9 @@ func NewL1CostFuncFjord(l1BaseFee, l1BlobBaseFee, baseFeeScalar, blobFeeScalar *
 		//estimatedSize = max(minTransactionSize, intercept + fastlzCoef*fastlzSize)
 		//l1Cost = estimatedSize * l1FeeScaled / 1e12
 
+		log.Info("W", "l1BlobBaseFee", l1BlobBaseFee.String(), "l1BlobBaseFee", l1BlobBaseFee.String(),
+			"baseFeeScalar", baseFeeScalar.String(), "blobFeeScalar", blobFeeScalar.String())
+
 		scaledL1BaseFee := new(uint256.Int).Mul(baseFeeScalar, l1BaseFee)
 		calldataCostPerByte := new(uint256.Int).Mul(scaledL1BaseFee, sixteen)
 		blobCostPerByte := new(uint256.Int).Mul(blobFeeScalar, l1BlobBaseFee)