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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 10-06-2005, 08:29 PM   #21
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Problem.

Your humidity and air temps that you posted above are WAY off what the historical data shows. I'm trying to work this out by logging all the prep and actual conditions for each run.
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Old 10-06-2005, 08:37 PM   #22
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Quote:
Originally Posted by willwren
Problem.

Your humidity and air temps that you posted above are WAY off what the historical data shows. I'm trying to work this out by logging all the prep and actual conditions for each run.
what do you mean by this....???? so are you saying that your graphs(and saved data) dont match my air temps, and they are way off thus not matching up to your data....
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Old 10-06-2005, 08:39 PM   #23
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No, I'm saying the historical data for Both days at Fayetteville and the day at Byron don't match what you stated above. Not by a long shot.

Your data makes it appear as if high temps and high humidity were the reason for the slower runs last year, and that low temp/low humidity was the reason for your quick run last month, when in reality, according to hourly archived weather data for those runs, they were virtually the same temp and humidity, which really makes me wonder how the hell you posted a full second quicker given nearly identical conditions.
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Old 10-06-2005, 08:48 PM   #24
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First off. . . . .

Pat I don't know how you did it but I guess it is true . . . .... I not only doubted you but blatantly accused you of not running the time you did! - For that I'd like to apologize for what I said and the way I acted. I'd like to congrat you again on your PB and for being the #1 quickest Series 1 L27 FWD Bonneville. Thomas


Quote:
Originally Posted by OLDsman105
I also provide the following as "food for thought".

Quote:
This was last year just before we got rid of it. I unfortunately drive an escort now, and my mom drives a 2000 Century, but I thought you guys may get a kick out of this.

L27 stock, with the front headlight out, and spare tire removed on 87 gas.

http://www.gtpaul.com/Matt/Videos/regal157.wmv
pulled from the Regal GS forums.
It'* a W-Body. . . . .different platforms, different weights, basically a better then a '97+ Grand Prix - That'* the reason for the time!

Quote:
Originally Posted by 95naSTA
I mean, I'd have to admit, this does seem somewhat 'unrealistic', but this is pat'*, what, 2dn, 3rd time at a track? I'd hope that I would drop a second after learning how to drive my car. Your not going to get your best 60 first or maybe even second time at a track. It takes time to get used to it.(from what I've heard)
So such a massive drop in time dosen't suprize me. I'll never be 100% that it actually happened without a video but that'* just me.
I could see that but look at his 60'* that night. They are all the same all night (or am I seeing things?). Each time he ran he lost .2 sec. - maybe weather played a part in it (wind/temp.)? Something doesn't add up - A car with just a CAI should not run that time. (notice I said 'should not' not 'could not')

Ryan'* mods when he ran a 15.7:
Denso plugs
AC Delco wires
Custom CAI
180* drilled t-stat
Under drive water pump pulley
3.1L alt. pulley (overdrive)
Yellow top
Flowmaster 80 series

The weather was (I think) high 70'* - low 80'* and humid. Ryan'* car weighed in a 200-300 lbs. heavier then Pats car in street trim. On Ryan'* PB he took out all the stereo equipment, back seats, jack, spare, and ran with 1/4 tank of 89, light weight rims (17lbs.), 225-70-15 tires, skinnies on the back, spring spacers. Ryan couldn't keep the car very cool in the hot weather and struggled to keep temps near 190*.
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Old 10-06-2005, 08:49 PM   #25
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Your slowest run on 9/2/2004 was actually run in 5 cooler weather and 3% less humidity than your fastest run (in question) on 9/16/2005. This is based on hourly weather condition archives for Fayetteville NC.

In other words, the temp and humidity from your run in question was WORSE than your slowest ever run, and is obviously counter to running a quicker time. You should have run SLOWER all other things being equal.

Couple this with the fact that you had a half tank of fuel on board, and that you probably were running no lighter than 3200 pounds, your CRANK hp would have had to be delivered at the wheels with no drivetrain loss whatsoever to post that time of 15.6 @ 88mph.

Nothing jibes here. All other things aside, everything points to an error in the timing circuits (which isn't unheard of) assuming we don't point fingers at you.
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Old 10-06-2005, 08:59 PM   #26
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All i can say is....I dunno....Seriously, All i can do is post the time slips and let the "experts" (Bill, Greyhare, John W and Todd and others) take a look at it.....Learning experience for track times that are verified offical by a slip?....i dunno
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Old 10-06-2005, 09:10 PM   #27
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Just go to the track next time and make video. It fall now and optimum running conditions.
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Old 10-06-2005, 09:12 PM   #28
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Old 10-06-2005, 09:23 PM   #29
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Let'* put it this way:

For your slowest run on 9/2/2004 at 8:08pm, you claimed a temp of 95 and 90% humidity netted you a 16.6397 @ 82.60 mph.
The ACTUAL temp and humidity at 7:53pm on that date in Fayetteville was only 75 and 64%.

For your quickest run, on 9/16/2005 at 8:45pm, you claimed a temp of 45-50 and 0% humidity netted you a 15.697 @ 88.13 mph.
The ACTUAL temp and humidity at 8:53pm on that date in Fayetteville was 80.1 and 67%.

This data is backed up by two sources reporting within 2% of each other.

So what we have is that atmospheric conditions should have HURT your faster run, rather than being grossly in your favor. In other words, we cannot say that 'ideal track conditions' prevailed for you. Quite the opposite.

From the original temp and humidity data you posted above, I'd take a quick glance normally and say to myself:
"Hot humid run slower, Cool dry run quicker, OK!"

But that isn't the case. A 95SE is the lightest production model from 92-99. It weighs in at 3400 pounds dry. Stripping 200 pounds from that car would be tricky. And you have a heavier SLE from a heavier year. Giving your car the benefit of the doubt at 3200 pounds, and ignoring the half-full fuel tank, I don't see how a CAI made a 1 second difference in your ET and posted a time that an L36 would be hard pressed to achieve.

I think all other things being 'above board', that the timing circuits at Fayetteville are grossly inaccurate. This may be reflected in your 3 times from that night being all over the map:

16.01 @ 85.06 (2.44 sixty)
15.82 @ 86.43 (2.27 sixty) 45 minutes later
15.69 @ 88.13 (2.10 sixty) 10 minutes later

Considering this last run was in WORSE atmospheric conditions than your slowest last year, and the run was recorded a mere 10 minutes after another run (virtually no cooldown), I don't see anything that would justify the quicker time.
I see several factors that would make it SLOWER.

I'll keep crunching numbers, but everything on this end looks like a serious timing error at least.

Quote:
All i can say is....I dunno....Seriously, All i can do is post the time slips and let the "experts" (Bill, Greyhare, John W and Todd and others) take a look at it.....Learning experience for track times that are verified offical by a slip?....i dunno
Well, I can tell you I'm a little tweaked right now at the gross errors in atmospheric conditions you posted above for me to work with. It took me an hour to find all the actual data for all of your runs. If I'm going to help sort this out, I need at least VAGUELY accurate data.
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Old 10-06-2005, 09:33 PM   #30
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Sorry BIll for the Temps that i posted, I thought it was hotter last year, and i honestly didnt remember......and for this year, there was NO thermo at hte Track and obviously my car dosnet either....all i can say is that if def felt cooler, much cooler than the 80* that the data shows....not to argue....just making that clear
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