Made passes 3 days in a row at Irwindale. I learned some things and unfortunately the prep on Friday night was lacking. That is when the best DA was, of course.
So, I was trying to improve my PB and I was trying different fuels and I finally data logged a Demon for the first time. I was thinking it was a mistake because it will cause me to worry about low fuel level. I have run stock Demon out of fuel while making passes MANY times. Just surging on the big end mostly when I know it is low. But it literally has for the most part made its best passes on the pass before it runs out. Has never hurt anything.......... But now I am blending fuel at a higher ratio than ever before and I am thinking the motor might run lean. So, I had decided to run more fuel than usual from now on. But once again the car contradicts. On Sat morning I was in a situation where I started out with plenty of fuel but had issues with not getting a time slip and pulled some strings to jump back in and make another pass. The car was low on fuel and made its highest MPH ever in the 1/8th. I don't think any stock Demon has ever done this. It was even heat soaked and in higher DA. 115 MPH.
So, PB was 6.106 in the spring. I beat that twice at the exact same 6.104, plus matched the spring PB od 6.106. But not the 6.oh that I know the car is capable of. Just did not get the conditions. Darn.
Fuel I was running an Ethanol blend and also a Methanol blend.
Methanol wins because it did the same ET and better speeds at worse DA. I will say that the Methanol was mixed at a higher ratio though.
Data Logging. Son of a bitch the fuel pressure does drop when the tank is low. And it does not even have to be running out. It was dropping on that 115 pass. Another contradiction. So, now that I have taken that last bit of tactful weight out of the car, I have decided to run more fuel in it. More like 1/4 tank. Or maybe a little more if I am doing a six pack (3 passes in a row without stopping). I also found out I might have shot myself in the foot. With that weight out, the car might start regularly clipping the rev limiter when I get in negative DA. So the TALLER tires will make the trip to Houston in January. The logs show the hiccups and I did get one clean run where the RPM hit 6440 on the 2-3 shift without a hiccup. In negative DA the car likely would have had a hiccup. But, MAYBE not with better prep.
I don't run the car again until Jan 7th in Houston. That is Brian Mason's Moparmageddon private rental. Let’s hope for good weather and at least -300 DA. I think that will get me a 9.49 @144..................
