Turbo rotary spark plugs

sleeper7 · 12-14-2006

Did a few half throttle passes last night at the track. And these are what the plugs looked like. Runing devilsown controller with two M5 nozzles and 150psi pump. start time at 2psi and full at 25psi. I was only running .9bar last night as this was the first time at the track. AFR was low 11's. EGT never went over 700c with timing at 20btdc under boost. Going back saturday to make some full 1/4 passes at 1.5bar.

I use to use a hobbs switch to activate the water injection. one at 5psi and another at 13psi. This controller is so much better.

chuck

dvldoc · 12-14-2006

Glad you like the controller you really can't beat our unit for the price and the smoothest ramp up compared to any other controller.

sleeper7 · 12-18-2006

Welcome to my homepage!

Short incar video. Air temp gauge is in the lower right. Sensor is located about 8 inches from the motor. As close as I could get it to get a "real" air temp reading but it does get heat soaked at times.

Three gauge on the dash are, left to right, fuel pressure, boost and EGT.
max boost was 1.5 and max EGT was 675c. Timing was 20-22btdc. afrs in the low 10s. Next test and tune going to run 15-17btdc to see if the EGTs will go up. If not will set timing at 22btdc and lead the map out. OR go 25btdc on the timing. That's allot on a rotary at 1.5 bar.

12-14-2006	#1 (permalink)
sleeper7 Water Injection Newb Year: 87 Make: mazda Model: RX7 Join Date: Dec 2006 Posts: 8	Turbo rotary spark plugs Did a few half throttle passes last night at the track. And these are what the plugs looked like. Runing devilsown controller with two M5 nozzles and 150psi pump. start time at 2psi and full at 25psi. I was only running .9bar last night as this was the first time at the track. AFR was low 11's. EGT never went over 700c with timing at 20btdc under boost. Going back saturday to make some full 1/4 passes at 1.5bar. I use to use a hobbs switch to activate the water injection. one at 5psi and another at 13psi. This controller is so much better. chuck

12-14-2006	#2 (permalink)
dvldoc DevilsOwn Staff Join Date: Apr 2005 Posts: 1,966	Re: Turbo rotary spark plugs Glad you like the controller you really can't beat our unit for the price and the smoothest ramp up compared to any other controller.

12-18-2006	#3 (permalink)
sleeper7 Water Injection Newb Year: 87 Make: mazda Model: RX7 Join Date: Dec 2006 Posts: 8	Re: Turbo rotary spark plugs Welcome to my homepage! Short incar video. Air temp gauge is in the lower right. Sensor is located about 8 inches from the motor. As close as I could get it to get a "real" air temp reading but it does get heat soaked at times. Three gauge on the dash are, left to right, fuel pressure, boost and EGT. max boost was 1.5 and max EGT was 675c. Timing was 20-22btdc. afrs in the low 10s. Next test and tune going to run 15-17btdc to see if the EGTs will go up. If not will set timing at 22btdc and lead the map out. OR go 25btdc on the timing. That's allot on a rotary at 1.5 bar.