Very Preliminary Results--V-Tech
11-30-2005, 10:27 PM
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Originally Posted by markt540i' post='205514' date='Nov 30 2005, 11:27 PM
Great report. I look forward to what, if any, improvement you get with your intake installation. The 5.2 time you reference includes a 1 foot roll out, which the magazine notes takes the typical car about .3 seconds, so their 5.2 would about equal your 5.5 starting at a standstill.
12-02-2005, 06:34 AM
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Originally Posted by markt540i' post='205514' date='Nov 30 2005, 11:27 PM
Great report. I look forward to what, if any, improvement you get with your intake installation. The 5.2 time you reference includes a 1 foot roll out, which the magazine notes takes the typical car about .3 seconds, so their 5.2 would about equal your 5.5 starting at a standstill.
I can't find the part in the mag about using a 1 foot rollout. Where is it? One of the drivers mention using a stopwatch. Would they really use a stopwatch? I confirmed elsewhere that the 1 foot rollout might save .3 sec.
12-02-2005, 08:41 AM
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Originally Posted by vnod' post='204468' date='Nov 28 2005, 06:33 PM
[quote name='donv' post='195856' date='Nov 9 2005, 04:06 PM']
Hi Friends:
I received my new G-Tech yesterday--the day I had my software reinstalled, etc. I set it up hurriedly this morning just to try it out on a 0 - 60 run. I am not going to tell you the general results because, whether really fast or really slow, they are not necessarily comparable to car mag or manufacturer times? And, who knows how they might compare to other G meters? I did talk to G-Tech and they indicated that it was not a good idea to try to compare V-Tech times/speeds with those of mags and manufacturers for a variety of reasons. To see how my car performs in the real-world, check out the "Kills" thread in "The Competition" forum.
I intend to post differences that might be attributable to procedures. Today, I did two quick 0 - 60 runs--the first in DS letting the Step do everything (starting in M1 of course) and the second turning DSC and DTS off and holding forward on the lever until 60 was reached (again starting in M1, of course). "Turning off" and "holding forward" produced a .06 difference in 0 - 60. I have no idea if the difference is "real," but I get the feeling that "holding forward" provides slightly faster shifts. I had no wheel spin so I assume "turning off" had no effect, but I am not sure. And, of course, I have not yet experimented with manual shifting. To check out some of the shifting-related issues, go here1 and here2.
I will be obtaining more results over time, of course, but I won't be in a big hurry to do so. I'll update this thread when I get additional info.
Hi Friends:
I received my new G-Tech yesterday--the day I had my software reinstalled, etc. I set it up hurriedly this morning just to try it out on a 0 - 60 run. I am not going to tell you the general results because, whether really fast or really slow, they are not necessarily comparable to car mag or manufacturer times? And, who knows how they might compare to other G meters? I did talk to G-Tech and they indicated that it was not a good idea to try to compare V-Tech times/speeds with those of mags and manufacturers for a variety of reasons. To see how my car performs in the real-world, check out the "Kills" thread in "The Competition" forum.
I intend to post differences that might be attributable to procedures. Today, I did two quick 0 - 60 runs--the first in DS letting the Step do everything (starting in M1 of course) and the second turning DSC and DTS off and holding forward on the lever until 60 was reached (again starting in M1, of course). "Turning off" and "holding forward" produced a .06 difference in 0 - 60. I have no idea if the difference is "real," but I get the feeling that "holding forward" provides slightly faster shifts. I had no wheel spin so I assume "turning off" had no effect, but I am not sure. And, of course, I have not yet experimented with manual shifting. To check out some of the shifting-related issues, go here1 and here2.
I will be obtaining more results over time, of course, but I won't be in a big hurry to do so. I'll update this thread when I get additional info.
I have done no quarter miles because I believe I can learn what I want to learn with zero to sixties, and it is very difficulty to find a flat 1/4 mile without going to more trouble than it is worth--including going to a dragstrip. The main point of using a G-meter, IMO, is finding "the" optimal technique.
My runs have fallen into the range of 5.55 sec. to about almost 6 sec. My best was on a 60 degree morning. For me, the best technique with the Step is to put the tranny into M1 and then let the Step shift itself. Interestingly, I had a low 5.7 time with the tranny in D. I think that the reason it is optimal to let the tranny shift itself is because one must shift a bit too soon to beat the tranny to it, and I think the tranny shifts at least as fast by itself as it would with manual gear changes. Some of these conclusions might change with tranny programming.
I know of only one other who has tried a G-meter--realtyman (B&B exhaust, lighter wheels and tires, but no throttle body). As, I recall, he reported a best of 5.52 with his SMG not using the acceleration assistant. I am not sure what brand of G-Meter realtyman has.
I should mention that I did not play with my tire pressures, and did not use torque braking. It is possible that my times would improve if I changed my pressures and used mild brake-torquing. But, I am not going to go there. I am interested in getting the most out of my car the way it is set up for street use (no dragstrips for me). And, I would not use brake torquing no matter what the improvement.
Despite my mods, I can't get times like those in the car mags (5.4 to 5.5 with an outlier of 5.2), but I am close and think that is to be expected. also, the car mags probably abuse the Step with serious brake torguqing.
My best times are about .25 better than BMW's published value of 5.8 for the Step. I would be happy if my mods made a .25 difference (although I really like to get .3). After all, they look very good and sound very good too regardless of the performance enhancement. And, I expect the package to come together with the addition of the Dinan intake. After the intake is installed, I'll do a few more runs and then use the G-tech only on my Z06 (unless I get programming)--after getting some drag radials (being shipped). I'll report back at least one more time. It is cool now, and I have zero traction in the Z06--even though can and my GY SC's have only about 10K miles.
[/quote]
Thank you very much. Would it be .3 or .03 for the rollout? Anyway, R&T also probably uses serious brake torquing--which I won't do. According the Dinan, the intake gives 17 HP, subsequently adding the exhaust adds 5 HP (or maybe 4), and finally adding the throttle body adds 5 more HP. I may be off a tad in my recollections here, but I am very close. So, in principle, the intake should add the equivalent of what I already have done--including light wheels and tires. Check out the first "Mind Candy" link in my sig.
[/quote]
.3, not .03 for the rollout.
12-02-2005, 09:57 AM
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Originally Posted by markt540i' post='206175' date='Dec 2 2005, 12:41 PM
.3, not .03 for the rollout.
12-02-2005, 11:56 AM
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Originally Posted by markt540i' post='206175' date='Dec 2 2005, 12:41 PM
.3, not .03 for the rollout.
12-05-2005, 06:05 PM
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realtyman has a G-Timer Pro (from Escort).
I'll need to find it - it's in my trunk somewhere.
I'll need to find it - it's in my trunk somewhere.
12-06-2005, 04:22 PM
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Originally Posted by realtyman' post='207688' date='Dec 5 2005, 10:05 PM
realtyman has a G-Timer Pro (from Escort).
I'll need to find it - it's in my trunk somewhere.
I'll need to find it - it's in my trunk somewhere.
What was the temperature, and did you use the AA? If so, then what RPM? And, OK, I have to ask are you sure you weren't going down hill? Oh, and, does the Escort assume a roll out distance. And, finally, is this a new run, or did I misrepresent what I recalled to be the time you reported once before--5.52? If so, then sorry.
12-06-2005, 06:47 PM
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2004 545i | SMG | White/Black | Sport | NAV | Logic 7 | PDC | Fold-down Seats | Adaptive Headlights | Cold Weather Pkg | Clear-again Bra | Mud Flaps | Bluetooth | Coat Hangar | Aux Input | All Weather Mats | 18"X8.5" BBS RK w/ Michelin Pilot Alpin's (winter) | New steering rack @ 1.2K & 17K miles| Software V.19.1 | B&B Exhaust (vrrrroooooommm!) <---Click.
What was the temperature, and did you use the AA? If so, then what RPM? And, OK, I have to ask are you sure you weren't going down hill? Oh, and, does the Escort assume a roll out distance. And, finally, is this a new run, or did I misrepresent what I recalled to be the time you reported once before--5.52? If so, then sorry.[/quote]
Temp: Don't remember - that was done over 6 months ago.
AA: No
RPM: Just nail it from a dead stom (SMG, remember)
Down Hill: Nope. Quite level.
Roll Out Dist: Is configurable in the setup. I believe I have it set correctly.
New Run: Nope - see response #1 - was my best run
I'd like to get a new run now that my snows are on with the "light" BBS wheels but it's in right now getting Bluetooth repaired.
12-06-2005, 08:30 PM
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Originally Posted by realtyman' post='207688' date='Dec 5 2005, 10:05 PM
realtyman has a G-Timer Pro (from Escort).
I'll need to find it - it's in my trunk somewhere.
I'll need to find it - it's in my trunk somewhere.
What was the temperature, and did you use the AA? If so, then what RPM? And, OK, I have to ask are you sure you weren't going down hill? Oh, and, does the Escort assume a roll out distance. And, finally, is this a new run, or did I misrepresent what I recalled to be the time you reported once before--5.52? If so, then sorry.AA: No
RPM: Just nail it from a dead stom (SMG, remember)
Down Hill: Nope. Quite level.
Roll Out Dist: Is configurable in the setup. I believe I have it set correctly.
New Run: Nope - see response #1 - was my best run
I'd like to get a new run now that my snows are on with the "light" BBS wheels but it's in right now getting Bluetooth repaired.
[/quote]
Got it. I must have remembered the time you gave before incorrectly. Sorry. What roll out distance have you configured?