NateCrisman
Well-known member
I did something interesting tonight....I ran 3 passes on normal 93 pump gas then drained the tank and put in 5 gallons of E85 for a somewhat back to back test. I was exhausted from working 2nd shift all week and just didn't have the energy to swap on the hoosiers or do any of the weight loss stuff (seats out, exhaust off). I knew the 60' times were going to be horrendous with these bald 215/45/17 decade old kumho H rated tires. Even if I bogged off the line, they would break loose as boost came up in first gear.
I had literally swapped the DSMlink chip in this afternoon and got it working about 4:30pm, so I basically went to the track with a completely untuned car and just winged it. I worked on the VE map 3 times on the way over to the track and got the A/F dialed in and smoothed out the timing curve. So tonight was an experimental night to learn the DSMlink software and screw around with an alcohol fuel for the first time.
Here's the runs:
13.351 @ 104.91 1.812 ~19psi boost.
13.178 @ 104.74 1.853
13.076 @ 105.09 1.814 Last pass on 93 gas
13.009 @ 106.95 1.812 First pass on E85.
12.882 @ 108.49 1.863
12.841 @ 109.06 1.910 (bogged launch)
12.792 @ 108.98 1.771 (spun in first a bit)
No video or pics. I'll post some screen shots and datalogs for anyone intersted in them. I want to see about overlaying the calculated HP/TQ graphs and map sensor between the 93 and E85 runs.
Last time I ran #139 it went 12.0 @ 113 ..the difference being: hoosier traction and rotating weight loss, about 150lb lighter, racegas, and maybe 1.5 to 2psi higher average boost.
I had literally swapped the DSMlink chip in this afternoon and got it working about 4:30pm, so I basically went to the track with a completely untuned car and just winged it. I worked on the VE map 3 times on the way over to the track and got the A/F dialed in and smoothed out the timing curve. So tonight was an experimental night to learn the DSMlink software and screw around with an alcohol fuel for the first time.
Here's the runs:
13.351 @ 104.91 1.812 ~19psi boost.
13.178 @ 104.74 1.853
13.076 @ 105.09 1.814 Last pass on 93 gas
13.009 @ 106.95 1.812 First pass on E85.
12.882 @ 108.49 1.863
12.841 @ 109.06 1.910 (bogged launch)
12.792 @ 108.98 1.771 (spun in first a bit)
No video or pics. I'll post some screen shots and datalogs for anyone intersted in them. I want to see about overlaying the calculated HP/TQ graphs and map sensor between the 93 and E85 runs.
Last time I ran #139 it went 12.0 @ 113 ..the difference being: hoosier traction and rotating weight loss, about 150lb lighter, racegas, and maybe 1.5 to 2psi higher average boost.