PetroleumJunkie412
Official TRS EV Taunter
Supporting Member
TRS 20th Anniversary
TRS Event Participant
- Joined
- Oct 31, 2018
- Messages
- 7,826
- Reaction score
- 6,565
- Points
- 113
- Location
- Dirtman's Basement
- Vehicle Year
- 1988
- Make / Model
- Ranger
- Engine Size
- 2.9l Trinity
- Transmission
- Manual
- 2WD / 4WD
- 4WD
- My credo
- Give 'yer balls a tug. Fight me.
Ok, so to ensure I cause a tremendous amount of chaos, I'm looking for some input of heat ranges of plugs.
Engine is a 2.9. It is NOT stock:
DIYAutotune Megasquirt PNP v1.5
24lb Bosch 4 hole injectors from a Saleen
Spartan Wideband Controller and Bosch 4.9 LSU Wideband O2 sensor
Phenolic upper intake spacers
J & C Enterprises Performance Heads
Ported lower intake
Ported Upper intake
1986 Throttle Body
Free floating Rockers
Polished rocker assemblies
Melling (I think...) lifters
JBA Headers
2.5" exhaust with Flowmaster FlowFX
PCV catch can
Stupid cone air filter
Bosch iridium plugs
"Performance" Cap, rotor, and wires
MSD Blaster Coil
Current ignition table:
Current air fuel ratio table:
Not currently having any detonation issues (knock/ping). I'm also running 93 pump gas.
I have heard that I will need to run colder plugs once I put the supercharger on. Looking at running NGK 7993 plugs. They are heat range 10. Plug chart:
My questions are:
Are these too cold? Am I going to wind up carbon fouled to hell and back?
Current tune is untested on 87 pump gas, but previous attempts weren't great. It would knock. The again, I had my O2 settings majorly fouled up and the Megasquirt was confused as hell.
If I can avoid fouling, will a colder plug help with knock and running lower grades of fuel?
And is this range of "cold" cold enough to use with the blower?
Thanks all!
Engine is a 2.9. It is NOT stock:
DIYAutotune Megasquirt PNP v1.5
24lb Bosch 4 hole injectors from a Saleen
Spartan Wideband Controller and Bosch 4.9 LSU Wideband O2 sensor
Phenolic upper intake spacers
J & C Enterprises Performance Heads
Ported lower intake
Ported Upper intake
1986 Throttle Body
Free floating Rockers
Polished rocker assemblies
Melling (I think...) lifters
JBA Headers
2.5" exhaust with Flowmaster FlowFX
PCV catch can
Stupid cone air filter
Bosch iridium plugs
"Performance" Cap, rotor, and wires
MSD Blaster Coil
Current ignition table:
Current air fuel ratio table:
Not currently having any detonation issues (knock/ping). I'm also running 93 pump gas.
I have heard that I will need to run colder plugs once I put the supercharger on. Looking at running NGK 7993 plugs. They are heat range 10. Plug chart:
My questions are:
Are these too cold? Am I going to wind up carbon fouled to hell and back?
Current tune is untested on 87 pump gas, but previous attempts weren't great. It would knock. The again, I had my O2 settings majorly fouled up and the Megasquirt was confused as hell.
If I can avoid fouling, will a colder plug help with knock and running lower grades of fuel?
And is this range of "cold" cold enough to use with the blower?
Thanks all!