Fireblade893
07-11-2011, 04:54 AM
After my engine build (9:1Rc) i have 5-6 knock at 4300-4500 rpm at 14.7 psi of boost.
Before the engine build with stock engine (11:0 Rc) at the same pressure of boost and same ignition-afr kal i don't have any knock
Yesterday night i have try to retard the ignition in the Knock zone at about -3° and it's knock the same.
i have try with premium fuel (100 Ron) and it's knock same..
After this i have try to reduce the boost pressure with the boost control at 12.9 psi-11.4 psi and at 7.1 psi (wastegate spring) and the knock are the same.
Now i think it's a engine noise but why this noise??
At the idle and in normale driving the engine don't have any noise...
The build is:
- Wiseco 86.5 pistons rc 9:1
- Pauter Rods
- Honda Oem main bearing
- Honda Oem rods bearing
- new chamshaft chain
- new oil pump Honda Oem
- GT3582r Twinscroll setup with 2 38mm TiAl wastegate
For the specs of the engine , when i bore the engine i have set the clearance from pistons to sleeve at 0.0031 "..
I have check for the Pauter Rods to sleeve clearance and it's ok, about 0.19 "
Anyone have this noise engine with pauter rods and wiseco pistons?
I attach the datalog with the Knock..
Before the engine build with stock engine (11:0 Rc) at the same pressure of boost and same ignition-afr kal i don't have any knock
Yesterday night i have try to retard the ignition in the Knock zone at about -3° and it's knock the same.
i have try with premium fuel (100 Ron) and it's knock same..
After this i have try to reduce the boost pressure with the boost control at 12.9 psi-11.4 psi and at 7.1 psi (wastegate spring) and the knock are the same.
Now i think it's a engine noise but why this noise??
At the idle and in normale driving the engine don't have any noise...
The build is:
- Wiseco 86.5 pistons rc 9:1
- Pauter Rods
- Honda Oem main bearing
- Honda Oem rods bearing
- new chamshaft chain
- new oil pump Honda Oem
- GT3582r Twinscroll setup with 2 38mm TiAl wastegate
For the specs of the engine , when i bore the engine i have set the clearance from pistons to sleeve at 0.0031 "..
I have check for the Pauter Rods to sleeve clearance and it's ok, about 0.19 "
Anyone have this noise engine with pauter rods and wiseco pistons?
I attach the datalog with the Knock..