Hi,
Does anyone know what can cause timing corrections on specifically cylinder 2 and 5? I know the knock sensors are near those cylinders, but this happens at least 3 out of 4 pulls. I get huge timing corrections on cylinder 2 and 5 only. I’m almost starting to think it’s false. Even with knock desensitized through MHD it does the same thing. My stock turbos maxed out didn’t have this problem. As soon as I upgraded the turbos and installed all the supporting mods this issue started. I’m tuned on full E85 + Meth 50/50 for IAT cooling and boosting about 25 psi.
Current mods:
RB 17T GF turbos
RB GF outlets
ARM relocated inlets
VRSF downpipes
VRSF street exhaust
BMP Port Injection 750cc
BMP Stage 3 low pressure pump
AEM meth kit dual BM5 nozzles (Boost Juice with controller set to 10 psi start and 20 psi full)
CTS 7” IC
BMS low side & high side catch can
BMS charge pipe with Tial BOV
XHP Stage 3 DCT flash
PR coils with NGK gapped to .020”
Maintenance:
New Index 12’s
New HPFP
New PCV flapper
NGK plugs .020”
New fuel tank vent valve
4 new Bosch oxygen sensors
Walnut blasted prior to port installation
Does anyone know what can cause timing corrections on specifically cylinder 2 and 5? I know the knock sensors are near those cylinders, but this happens at least 3 out of 4 pulls. I get huge timing corrections on cylinder 2 and 5 only. I’m almost starting to think it’s false. Even with knock desensitized through MHD it does the same thing. My stock turbos maxed out didn’t have this problem. As soon as I upgraded the turbos and installed all the supporting mods this issue started. I’m tuned on full E85 + Meth 50/50 for IAT cooling and boosting about 25 psi.
Current mods:
RB 17T GF turbos
RB GF outlets
ARM relocated inlets
VRSF downpipes
VRSF street exhaust
BMP Port Injection 750cc
BMP Stage 3 low pressure pump
AEM meth kit dual BM5 nozzles (Boost Juice with controller set to 10 psi start and 20 psi full)
CTS 7” IC
BMS low side & high side catch can
BMS charge pipe with Tial BOV
XHP Stage 3 DCT flash
PR coils with NGK gapped to .020”
Maintenance:
New Index 12’s
New HPFP
New PCV flapper
NGK plugs .020”
New fuel tank vent valve
4 new Bosch oxygen sensors
Walnut blasted prior to port installation
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