4.8is and Dyno-licious (iPhone dyno app)

[Chris_731]

Has anyone used the Dynolicious app on their X5 yet?

I have had the app for a few weeks and thought I'd share some of my results on a few different cars that I've had a chance to drive lately.
If you haven't seen the app, it's dynolicious.com and is only $12.99!

So starting with my X5, it's an '04 4.8is, pretty much stock, performance wise, except for the center x-pipe mod/resonator delete.

Here's the dyno plot from the quickest run...



The blue line is G's... It pulled .73G's off the line. Gotta love that V8 Torque and X-Drive! Unfortunately the shift between 1st and 2nd takes FOREVER (a good 1/2 second), so it's losing some decent time between shifts.

Results:
1/8mi - 9.41sec @ 77.3
1/4mi - 14.41sec @ 100.4mph
0-60 6.14sec
0-90 11.92sec
328whp (est. at 5100lbs, and 20% drivetrain loss)


I also ran a couple of run in a E90 335i. 1/4mi ET was identical to the X5, just a bit faster trap speed. This was an auto, sport mode, DSC off, A/C on.

1/8mi - 9.60 @ 81.1mph
1/4mi - 14.42sec @ 103.2
0-60 6.08sec
0-90 11.23 sec
249whp (est. at 3800lbs, and 18% drivetrain loss)

The 335i was a loaner while the X5 was in the shop. It's a quick little car but I like my X5 much better! I also tested an E36 M3 with the full Schrick Cam kit, and will be testing my E39 M5 very soon.

I am pretty impressed with the Dyno app, it's very cool and seems to be pretty consistent with real world testing.

[jvit27]

I'll try it on my way home later. I've run my best friends 335i (6spd) a bunch of times and his is a little quicker. The X does shift very slow.. that's where I lose most of my ground on him! They weigh 3600, not 3800 so it should read around 260whp.

Curious to see how much you gained with the exhaust mod. Where did you place the phone for the run?

[pski215]

Originally Posted by jvit27

I'll try it on my way home later. I've run my best friends 335i (6spd) a bunch of times and his is a little quicker. The X does shift very slow.. that's where I lose most of my ground on him! They weigh 3600, not 3800 so it should read around 260whp.

Curious to see how much you gained with the exhaust mod. Where did you place the phone for the run?

on the roof duhhh

[Chris_731]

Originally Posted by jvit27

I'll try it on my way home later. I've run my best friends 335i (6spd) a bunch of times and his is a little quicker. The X does shift very slow.. that's where I lose most of my ground on him! They weigh 3600, not 3800 so it should read around 260whp.

Curious to see how much you gained with the exhaust mod. Where did you place the phone for the run?

Is the 335i 3600lbs with a driver or without? I figured it at ~3800 with driver.

You can set the phone in the cup holder as long as it doesn't move around. I just sat mine on the sliding door over the cup holder and it doesn't move, but the phone has a silicone case so it's not going to slide around.

[LeMansX5]

Do you have running boards or hitch or other heavy mods on your X?

[Chris_731]

Originally Posted by LeMansX5

Do you have running boards or hitch or other heavy mods on your X?

No, nothing like that... only the sliding floor in the back.

[mrkbbd]

can you re-test with a 2nd gear start so you don't have to worry about the really long 1-2 shift? You can probably launch it at 3k in 2nd