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Oldsmobile Aurora: Acceleration

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  • 2k1olds2k1olds Posts: 98
    The only reason I say this, I test drove about 8 Aurora's (all non-autobahn), and they just seemed a little quicker off the line than the one I bought. I just had my throttle body and fuel injectors cleaned yesterday because it seems a little sluggish at low end. Any other ideas? The car just doesn't launch like I'm used to.
  • hammen2hammen2 Posts: 1,313
    ...without running on a dyno, there's no real way to test this seat-of-the-pants feeling. Or at the track :-).

    I know my Autobahn-equipped '98 pulls stronger at the low end than my mother-in-law's non-Autobahn '98. However, I have also modified the airbox on my car - something that's really very easy to do (search CaddyInfo for Greg Garnes' instructions). I also put in a K&N filter. And, speaking of filters, might want to change the fuel filter, and maybe plugs and wires (with the car running, spray a little mist of water over the wires and see if you get fireworks - if so, they're bad). Of course, make sure you use only ACDelco plugs and wires, as others tend to be problematic (the Northstar is picky)...

    Hope this helps,

    --Robert
  • I know exactly, I drove two other non-autobahns before I bought my autobahn and they definetly needed the traction control as where mine could actually do better w/o it. However, one time when my dad was driving (don't ask the reason lol) he got on it and it felt better then the previous two.

    Have a friend (obviously a really, really good friend) drive for away and tell him to go for it once when you're not expecting it. My guess is that you just ready for the blast and it comes out underrated. Just my $0.02
  • 2k1olds2k1olds Posts: 98
    drive with traction on, or off? I'm talking about regular, everyday driving. I realize in snow you would want traction on.

    John
  • Its really wouldn't matter as it traction control and not stability it doesn't do anything till either wheel is spinning faster then the speed. Since the roras are FWD, spinning them would actually help save you. I know it helped me on an off-ramp. It was wet and the back slid out and I was all crossed up. Just applied some power and brought her back.

    It's just the matter of having traction off starring you in the face.
  • rjs200240rjs200240 Posts: 1,277
    First off, let me just say this place is nicer than 75-80. It has better layout and seems a little nicer and the workers seemed a bit more safety-conscious. And let me also say, there's no band-aid to pull off fast this time... :D You can read my first track visit in post #31 of this thread.

    Before I left the house to hit the dragstrip, I removed the spare tire and the rear seat bench (which only weighs like 20 lbs, it's really light). I also gassed up with about 3.5 gallons of 93 at Sunoco (I thought they'd have 94) which would put me at about a 1/4 tank after the ~60 mile drive to the dragstrip.

    When I got there, I didn't mess with the tire pressures, which I'd set to 33psi a few weeks back, and didn't remove the headlight or anything. Just ran it like I drove it there.

    First run I was making the mental checks. But I got up there quick and forgot to put it in 2nd. So I launched about 1500 rpm, traction off, in D. The car pulled real hard, snapped the shift at 6400 rpm, and kept going. Unlike my last trip to the track, 3rd gear felt very strong. Last time 1st and 2nd felt strong but 3rd really fell flat. I smoked the guy in the Pontiac Grand Am V6 next to me on the way to a 14.97 @ 91.92 mph with a .208 RT (they don't include the clock time, so .000 is the best) and a 2.311 60' time.

    I knew it was a great run, the car felt strong, but I figured maybe I'd be under 15.5, which was my big goal. When I got the time slip, I about freaked!!

    My next run was my best. I was opening the hood while I waited, but surprisingly no one else ever did. I ran a 14.86 @ 92.23 mph, with a .220 RT and a 2.294 60' time against that Grand Am again. Interestingly, he didn't wait in line, they brought him over from the middle. I guess he knew the track folks or something (they'd also annouce the Grand Am V6 running in Lane 1, but say nothing of my car), and maybe he thought I'd be a good matchup for him. His best against me was a 16.38, and even by 330' I was 4/10ths of a second faster (enough to cover my longer RT). He also redlighted each run at about -.03 seconds RT.

    On this second run, I remembered to toss it into 2nd. I figured it wouldn't make a diff as the car ran to 6400 anyway. Holy crap did it ever! The car charged so hard the needle crossed into the red hashes at 6500, and it jerked sideways on the shift!! It definitely felt like it broke a tire loose, though there was no audible chirp. The car definitely skipped to the side, though. It was awesome!!

    Then I smoked a guy in an old-style Miata. By that time, the announcer was announcing my car as an Olds Aurora and noted that it had been running pretty strong. :D This run had my highest trap speed, ran a 14.89 @ 92.56 mph.

    Then I took a break, ate some nachos, and watched the action with my wife. I saw a Mustang GT (the body style where it could be a 5.0 or a 4.6, both of which made about 215hp) run a 15.2, a totally pimped out Accord run a 16.3, and even saw a WRX run a 14.8 or so. So there were a few cars I was pleased to see I'd have smoked pretty badly. A pimped GTI ran a 14.2, and I can't recall the others that ran slower than me (I think a Hyundai Tiburon that was all pimped).

    Then I took a last run for the heck of it and we left. It was my worst run, but the car was parked on the grass so the tires were wet and grassy. I didn't do a burnout any of the times. I ran a 15.00 @ 91.41 against some Eclipse. I think he was spraying because I took him off the line, took him to 330', and even passed the 1/8th marker first, though that was due to my better RT, but then he took off. He ran a 13.77 @ 107.85 mph. This time was the highest launch rpm, of probably 2000+ rpm. I'm not sure it helped, though it's hard to say if my poor run was due to the tires. My 60' was 2.320, my 330' was 6.376 (my best was 6.304). But launching at closer to 1500 rpm seemed to work fine and doesn't seem as bad for the car.

    So there you have it, a 14.86 @ 92.22 mph... Pretty dang impressive, and much better than I was expecting. The temps were just under 50F, my gas tank was about 1/4 full, and of course this time I have the Corsa exhaust. It's a heck of a lot better than the 16.06 @ 85.77 mph best I ran the last time I was at the track!! I'm soooo happy with the car!!! :D
  • Those are some incredible times. And consider the luxury heft of the car too. That is WAY cool. The temperature was about perfect for maximum power although the tires may not have been as grippy at that temp. I'll bet you anything your times would have been better with a new set of tires. How may miles do you have on them? When I get new tires the difference is amazing - and I get new ones before they are technically gone.

    The Corsa exhaust is definitely doing something.

    I've got to go to a track. That sounds too darn fun to pass. Now, what would be unbeatable is if I got to race you. Heh Heh Heh. But solid upper 14's - oh man, I don't know. That's brutal.

    Thanks for sharing the other times of other stuff you saw. I doubt any of those was totally stock either. I'm sure they at least had a K&N filter. You have to wonder what that poor WRX owner is thinking when his times (under great conditions) aren't close to the magazine times. I have to laugh. I think is tested much quicker than that.

    Thanks for the post. I hope mine would be close. I'd flip with low 15's.
  • rjs200240rjs200240 Posts: 1,277
    I would have flipped for low 15's also. I was really just hoping to be below 15.5, though in the back of my mind I wanted to match the 15.1 that one online car review quoted back in 2001.

    In reality, I should have known it would do that or better. I swear, the car gets stronger and stronger all the time. It seemed like after last winter, the car maintained winter-like performance in the summer. Now that it's cooling down, it feels stronger than it's ever felt. I'm guessing it's from breaking in. The car and tires have about 27k on them now.

    Grip wasn't too big an issue. I think mainly due to the real drag cars laying down pretty good rubber on the track. But it did peel out a fair bit.

    Here you can see one of my better runs. Listen to the announcer (you can also listen for the sound of Corsa, though it didn't pick up that well):

    http://members.aol.com/aurora402002/dragstrip/3rdrun.mpg

    We'll definitely have to meet up and line 'em up one day. That would be a real blast!
  • would love to see your run; it pops up for about 1 second and then closes. Anyone else having problems?

    John
  • The video clip worked for me. FANTASTIC! Thanks for posting it.

    Les
  • rjs200240rjs200240 Posts: 1,277
    Try right-clicking at selecting "save target as" then play it from your desktop. But it's an mpeg, so it ought to play ok. Maybe try installing a newer Quicktime plugin?
  • Worked for me. Awesome stuff... God you make me want an exhaust so bad!

    Makes me want to head to the track too. What's your elevation there? Thinking at my sea-level conditions at about 70 degrees at night, would be close to optimal. Maybe a little bit colder.

    On the fifth time I watched the clip, I can't believe how remarkably close your car sounds to the STS on corsa's sound clips. The sound exactly the same to me.
  • rjs200240rjs200240 Posts: 1,277
    I watched it at *least* 5 times just the day I got home... :D I always thought my car sounded a little less deep than the STS clips, which to me made it sound a little more exotic. But they do sound quite similar. And it may be because I hear it from inside the car where it isn't as deep since it's not subject to the doppler effect.

    If you want to hear your exhaust more, take the rear seat out for a day. It really sounded wicked. If it weren't so impractical, I might just leave it out... :D

    The track is in the mountains, so I'd guess probably around 500'-750', I wouldn't think it's over 1000'. I guess I could call them and ask.

    Greg, it could be that WRX driver was just a crappy driver, or that he just cared about his car. I suspect you really have to get it right to launch that thing well, and I also suspect that sidestepping the clutch at > 4000 rpm on an AWD car is horrifically bad for the drivetrain.

    Here's another clip for you all. You can't hear my car as much, and this is the guy who ran the 13.7 against me: http://members.aol.com/aurora402002/dragstrip/4thrun.mpg
  • Seriously, I think new ones would have made a measurable difference. 27,000 miles is nowhere near new grip/grab - even if you have a lot of highway. My stock Michelin's were good to about 33,000 miles before I did not feel comfortable with them in winter. I know the new ones have been improved for better tread life, but still, I think you were handicapped at least a tad with those tires.

    I don't think you'd notice/feel a tenth or two of a second in grab/go vs. spin, but the clock doesn't miss a thing.

    However, if you are saying that the track was pretty sticky from the other cars, then maybe it would not make much difference.
  • A Ferrari F355 decides to follow YOU. Driving home from school, Orlando to Ft. Lauderdale, I passed the Ferrari while working through traffic, I look back and his mimicking my moves. We clear the traffic and I expected him to come flying around, we were already in the last 90 degrees of the speedo, but he stays behind and follows me till I get off.

    Thinking wow, the old girl still gets that kind of respect. Bet he'd been pissed if he knew he was following a 95 with 112K miles lol.
  • rjs200240rjs200240 Posts: 1,277
    'cause he only has a 3.5L V8... ;)
  • ok how do I modify the rev limiter from 109 mph to about 125 mph? i love the thought of the RMS site; but i don't want a street cruiser(stop lite to stop lite).I was on hwy 5 over the thanking weekend and was tearing up beemrs and vw's.

       

       Good fun but if they knew what thier cars could do I would have been blown out of the water.

     

           all advice much apreciated

              THRAK44
  • rjs200240rjs200240 Posts: 1,277
    I scanned it up, finally... My car is "T66".

     

    image
  • What ran the 17.047??
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