In another Magnum forum, there's a thread stating that the Magnum engine's computer "awakens" after 7K miles, which results in improved performance and fuel efficiency.
Note: This is NOT intended to be a "yes it does/no it doesn't" type of thread. Nor a "Gosh, it feels faster now" kind of thread. Maybe it's the general lack of automotive know-how at the other forum, or what...I dunno...but even though several people claim this to be fact, not a single person has stepped forward with actual results. Maybe someone here--was it MagnumMan who has the accelerometer--could actually follow up on this and see if it's actually true?
Note 2: The weather when you first got your Magnum was probably much warmer, as they were probably received in the middle to late summer...and we all know that cooler air means better performance, due to higher oxygen content. What I'm looking for to prove/disprove this theory is a rather sudden change that occurs right around 7K on the odometer...not a gradual improvement due to seasonal changes.
Again, let's not turn this into a "yes" vs. "no" thread, but a "let's use our brains and see & prove it for ourselves" thread. Thanks!
MagnumFreak
10-06-2004, 07:19 AM
I have an accelerometer but I am nearly 4000 miles from hitting 7000. It will take me at least two maybe three months to get there. I will do several runs just before reaching 7000 and then several more just after. By doing it this way I can nearly eliminate the cold air effect since the weather won't change that much in a day or two. I have heard these rumors also. Also heard that it is not based on mileage but hours. Once the engine hits 150 hours then it wakes up. I need about 75 more hours to get there and I will run the tests for hours also. To find out how many hours your engine has on it, sitting in park, engine running, press and hold the trip meter button on the dash (left side) for about 6 seconds and the hour meter will pop up in the screen where your miles is displayed.
Coelacanth
10-06-2004, 11:26 AM
Cool, that would be great! I'm glad to see someone actually approach this objectively, rather than going with "their gut feeling". Talk is cheap, especially on the Internet (and even moreso at that other forum)! Your objective experimentation would be a welcome change! :cool:
Hemi Pete
10-06-2004, 01:48 PM
What's an accelerometer? Is it like an odometer, or is it a speedometer?
MagnumFreak
10-06-2004, 03:57 PM
What's an accelerometer? Is it like an odometer, or is it a speedometer?
It measures how fast a vehicle accelerates. It will provide 0-60 times and they are fairly accurate. I use the Beltronics FX2. You can see it at beltronics.com
daddog
10-14-2004, 11:51 PM
"To find out how many hours your engine has on it, sitting in park, engine running, press and hold the trip meter button on the dash (left side) for about 6 seconds and the hour meter will pop up in the screen where your miles is displayed."
I tried this and all it did was reset my trip odometer. My car has the full electronics package on it, possible I have to set it to something other than the "home information" display? I'd really like to keep an eyeball on the hour figure. Any ideas??? :help:
rp
MagnumFreak
10-15-2004, 12:08 AM
There I go posting bad info again. Turn your key to on without starting engine, press and hold trip button for about 6 seconds and release display should change to hours where your odometer is now. Although it is after midnight I think this is right, I will try this in the morning when I leave work and post info if I am wrong.
Sorry for the confusion. :huh:
hemiwagon
12-11-2004, 08:05 PM
Has anybody used the passport g-timer I am going to get one for the magnum and the wife's wrx. They say that these timers are fairly accurate?
joemagnum
12-22-2004, 06:24 PM
I have the G-TECH PRO and found it to be very accurate if all "conditions" are met.
Level ground, proper weight of the car is key.
jm
billapex
12-22-2004, 07:02 PM
Personally, I doubt the 7k mile wakeup "feature." However, here's my experience with my RT at 1,100' elevation (Firebird Raceway): 91 degrees, 15.2 @ 92mph. 60 degrees, 14.6 @ 96mph. There's the wakeup!!
ramification1
12-28-2004, 05:40 AM
When I ran my car on the dyno, one thing that they measured was my air/ fuel mixture. My car had 2000 miles on it when I ran it. We noticed that the fuel/air was running rich and the guy at N.E. Dyno said.. To bad the computer doesnt lean it out some and bring it closer to 13 to 1. (what ever 13 to 1 means) He said that we would se about 20hp and about 20tq if that was done. When my car hits the 150hr mark I will re dyno my car. I am thinking that the "wake up" so many people say they feel is the computer correcting the air/fuel at 150hrs to give the engine full power and that wake up. It would be an easy way for Dodge to make sure the engine isnt getting true 100% crazy hp at early life in the motor. Just my 2 cents worth
billapex
12-28-2004, 10:54 AM
There are owners out there on other Boards who report no such discernable difference at all after their RTs hit 7k miles... The only true way to know would be to dyno well before 7k miles and well after in very similar weather conditions on the exact same dyno.
As my quarter mile times show, the car is very susceptible to heat soak and hot weather. After the weather cooled down here in Phoenix, my times dropped 0.6 seconds, and the trap speed went up 4mph, which is huge.
v10sport
12-28-2004, 11:41 AM
Easiest to prove this is have some one who recenetly boght a Magnum,, ahve 3 dyno pulls done in a controled enviroment, what to 7K and dop another 3 pulls. Dyno numbers dont lie.
hemity
12-30-2004, 03:14 PM
:banghead: :flippy: Just thought I would let you guy's know, I have passed the 7k mark. and it feels like I have more HP. However it could just be me, I have been told I am crazy, but it dose feel as if it pulls harder.......
Blackcomb
12-31-2004, 09:33 PM
Passed the 7k mark with my SXT, gotta say it might be a bit more peppy, but there is no huge overall diff IMO.
FOURTEEN
01-27-2005, 04:32 PM
13 to 1. (what ever 13 to 1 means)
13 to 1 is the ideal air/fuel mixture ratio!
Lower means too much fuel. Higher means too much air, which can cause engine damage.
taran1900
01-27-2005, 10:51 PM
Mine hauled butt when I picked it up and it still hauls butt at 12,670 miles. It was awake when I took delivery in June. :rck:
Blackcomb
01-27-2005, 11:11 PM
Mine hauled butt when I picked it up and it still hauls butt at 12,670 miles. It was awake when I took delivery in June. :rck:
Drive it like you stole it my friend! :rck:
FOURTEEN
01-28-2005, 02:26 PM
Drive it like you stole it my friend! :rck:
We did steal our Magnums!!! I am amazed at how many 'nice', but very ordinary and certainly not exciting, cars, trucks, and SUVs cost as much, or more, than our Magnums!!!! :drivingz: :evillaugh
.
BillyDsl
03-01-2005, 04:59 PM
I have the G-TECH PRO and found it to be very accurate if all "conditions" are met.
Level ground, proper weight of the car is key.
jm
"joemagnum"
Which model of the G-Tech do you use Joe?.. SS or RR
Billy
joemagnum
03-01-2005, 05:31 PM
Ny G-tech pro only says "g-tech pro"
no other marking...
BillyDsl
03-01-2005, 05:43 PM
rgr
Was checking there site and now they have 2 models.. I believe the RR comes with cable and sw to load data on your pc..
Thanks
joemagnum
03-01-2005, 06:19 PM
I have the older model before the SS RR variations...still works great!
Dodgeboy59
03-02-2005, 12:20 PM
I would think it is engine brak in and not computer. All my new cars run better and got better fuel mileage after around 7-10k miles. I have a gtech pro and it is very accurate if you can find a place to do it and be consistent. I know it is accurate because I also chassi dyno everything.
