Went drag racing again
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 254
Likes: 34
From: Oregon
2006 ML350, 2005 C55, 2004 E55
Went drag racing again
Recently bought a dragy, a little device that works like a Vbox and went to the drag strip to see how it compares.
Best run according to the dragy was 13.01 @ 107.63, time slip said 13.03 @ 107.68. All other runs were within 0.05, very impressive accuracy. Disappointed I didn't get a 12 but I did have a full tank of gas. Previous best was 13.3 @ 107 on a cooler evening. Here's a video of my best run:
Best run according to the dragy was 13.01 @ 107.63, time slip said 13.03 @ 107.68. All other runs were within 0.05, very impressive accuracy. Disappointed I didn't get a 12 but I did have a full tank of gas. Previous best was 13.3 @ 107 on a cooler evening. Here's a video of my best run:
Last edited by Fantomas; Jun 23, 2019 at 02:16 PM.
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 254
Likes: 34
From: Oregon
2006 ML350, 2005 C55, 2004 E55
EC shorty headers, removed secondary cats, RaceIQ tune, pair of fresh AEM dryflow filters. First few runs trap speed was 108, towards the end of the day headwind picked up and trap speed dropped to 107. After a couple of runs checked my tire pressure, 40 all around, raised the front to 45 and dropped the rear to 25, also did an adaptation reset.
Kind of disappointed, since my last years 13.3 run I installed headers, tune and better tires. Seems like most of my gains came from a better 60' time rather than mods. How EDgineered went 12.1 @ 112 I have no idea. I still have my stock resonator with the awful factory 2 into 1 into a tiny y into 2 exhaust. I'm thinking this thing is a restriction, will be hitting up the exhaust shop to change it and back to the track. Then going to mod/gut my airbox or get it modified by speed43. Not sure what else I can do to speed this thing up.
What is truly impressive is how accurate this dragy thing is. After my additional mods I thought I had a solid high 12 second car. Ran the draggy on the street and it kept coming back with 13.1-13.2, took it to the track and the damn thing is accurate to within 0.05 and 1mph.
Kind of disappointed, since my last years 13.3 run I installed headers, tune and better tires. Seems like most of my gains came from a better 60' time rather than mods. How EDgineered went 12.1 @ 112 I have no idea. I still have my stock resonator with the awful factory 2 into 1 into a tiny y into 2 exhaust. I'm thinking this thing is a restriction, will be hitting up the exhaust shop to change it and back to the track. Then going to mod/gut my airbox or get it modified by speed43. Not sure what else I can do to speed this thing up.
What is truly impressive is how accurate this dragy thing is. After my additional mods I thought I had a solid high 12 second car. Ran the draggy on the street and it kept coming back with 13.1-13.2, took it to the track and the damn thing is accurate to within 0.05 and 1mph.
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 254
Likes: 34
From: Oregon
2006 ML350, 2005 C55, 2004 E55
Found another video posted by a W204 C350 I raced. This was our 2nd run, he got the jump in the first run and I had to reel him in and finally caught up and passed half way down the track. Very impressive for 100hp and 1.9 liters less.
Doing something stupid today, couldn't find an exhaust shop to take the job until a week or 2 from now so I just pulled off the exhaust and going back out drag racings. Lets see if the catback is a restriction or not at all. Time to beat 13.03 @ 107...
Last edited by Fantomas; Jun 28, 2019 at 09:41 PM.
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 254
Likes: 34
From: Oregon
2006 ML350, 2005 C55, 2004 E55
Buddy's E55 with full exhaust in the left lane, C55 in the right. Gained almost 2mph and a tenth. Always been told not to burnout, just haze street tires, decided to disregard this advice and do a 3-4 sec burnout, car stuck like never before and in hindsight could have launched harder.
Definitely putting the exhaust back ASAP, no idea how some of you live with muffler deletes, the only way I could drive to/from the track was with noise cancelling headphones.
