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Old 06-27-2000, 03:18 PM   #1
MrSube2pt5
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Post Fastest stock 1/4 mile time?

I have heard many variations in 1/4 mile times for RS' with '00's being the quickest due to the LSD and mor torque than the '98's. The quickest stock time I've heard about was 15.7 in SCC, however, i ran a 15.5 @87mph completely stock. Since then I've added many mods, including intake, stromung cat-back exhaust, underdrive pulley, and a few suspension mods. I ran a 15.7 @86 with the mods. i figured it was due to the intake causing rich mixture. Someone else claimed it was my pulley depriving my alternator of maximum power output...who knows, could even be an exhaust leak? If anyone has a faster stock time or has any ideas on my problem please help. any info is appreciated.
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Old 06-27-2000, 04:40 PM   #2
Patrick Olsen
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When did you run the car stock, and when did you run it with the modifications? What was the weather like for both runs? Were you at the same track (elevation)? I would guess weather is to blame - you'd be surprised how much of a difference a hot day can make. If you initially ran in the spring when it was 60 degrees out, and you just ran again and it was 85 degrees, well that's probably your "problem". Just Mother Nature playin' tricks on you.

Pat Olsen
'99 Legacy 2.5GT 5speed sedan
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Old 06-27-2000, 05:28 PM   #3
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That's a very good point. I was thinking the same thing but my trap speed was almost the same and i would think that it should be higher with my intake and exhaust. It was extremely cold (30 or less degrees) when i ran it stock and about 80 when i ran it after market so that explains the time but not the speed. Do you think the weather would effect the speed?
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Old 06-27-2000, 08:02 PM   #4
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Have a Nice Day?

oh goodness yes. Without getting too technical, if you ran at the same track the air temp. had a lot to do with it. Since you initially ran on a day where the temp. was 30 degrees the air was much colder and denser allowing more air per cubic area to be squeezed into the combustion chamber allowing a very effecient mixture and colder intake charge. This in turn creates much more horsepower. And then if you ran on a day where the temp was 80 degrees and the humidity was prob. much higher than the air gets "heavy" which makes any car run rich. So in affect your intake and exhaust cant counter affect the air temp no matter how hard they try and your car ends up running much richer with a higher intake charge and less dense air quality. Hence the car runs much slower. Air temp has a lot more to do with it than you'd think. Trust me.

Darril
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Old 06-27-2000, 09:42 PM   #5
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my best is 15.8 stock. actually thats w/ a kartboy shifter.

 
Old 06-28-2000, 12:27 AM   #6
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I hear a 40 degree drop in temp is worth 6% more power.

Larry
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Old 06-28-2000, 02:27 PM   #7
Nat
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Trap speed shows what kind of hp you are making, so for the ET to be close to stock and speed be lower would be righ with such an increase in temp. I made a base run last fall with my stock 99 and ran a 16.1@85. I wasn't busting my clutch, so the ET could have been lower. I am not going to make another drag strip run till this fall again after my mods so I can make a nice comparison. If you knew all the weather conditions and elevation, there are programs that allow you to calculate hp. This would take out weather variables and let you know what kind of increase in power you made with mods. I wrote all my info down last time I went out, but I figure running around the same time will be ok too.
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Old 06-28-2000, 03:26 PM   #8
MrSube2pt5
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Great, thanks all for the info. Does anyone think that my pulley would have an adverse effect on my car..because I've heard of hondas having problems with pullies? I definitely need an AFC for my intake.
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Old 06-28-2000, 05:30 PM   #9
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The pulley had no adverse affect on my car...pretty much. Of course you will be low on electrical juice with the lights/wipers/stereo and all other stuff on, but only when the car is at idle. Once you get the engine spinning, voltage is fine and you are good to go. I like mine, feel like it added a little power (well not added power, but spin up faster) and don't regret bolting it on. Have fun getting the stock bolt loose though!
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Old 06-28-2000, 06:50 PM   #10
Mike Moffa
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hehe again..
My best time stock was 15.22 sec at 87.6 MPH

Take care
Mike M
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Old 06-28-2000, 09:11 PM   #11
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Moffa, what is your technique?
 
Old 06-28-2000, 10:32 PM   #12
MrSube2pt5
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Yeah! How in the hell did you whip a 15.2?? What kind of bolt-ons do ya have?
justin
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Old 06-28-2000, 10:36 PM   #13
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Yep, Mike did a 15.2 run a while back. I think he had a killer launch
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Old 06-30-2000, 07:15 AM   #14
rpone605
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Question

How hard were you guys launcing off the line? I am going to be taking mine to the track in the next few weeks so I want to see what I can get the car to do. I figured between a 4-5K rpm drop would get a good launch..any suggestions would be good.
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Old 06-30-2000, 07:26 AM   #15
Tony
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I not into drag racing but I do take it to the strip to gauge the effectivness of mods. Last time I went the best time I got was when I dropped the clutch at close to redline (maybe 5750 rpm). The fronts did break traction a little but didn't bog like it did at 4000 rpm.

How mike laid out a 15.2 on a stock 2.5 RS I can only guess that he is either a bad ass drag racer or that he made a pass when it was below zero outside (remember he lives in Canada), probably a little of both. I'd be very interested in hearing about his launching technique or any other info on how to drag race an RS.

The best I ever managed with intake and exhaust was a 15.54 on a 90 degree, humid day.

Tony "I better stick to autox" Powell
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Old 06-30-2000, 07:40 AM   #16
Mike Moffa
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hehe guys..First,, I did not do 15.2 only one time.. I did that all the time after some practice with my car.. At first, I was at 15.6, but I remove my sub and the box in the trunk, and I pass to 15.2 sec.. I did like 20 runs in the 15.2 sec.. after that, the season was finish..

I have try everything ..I have try to launch with the clutch slipping or drop it hard.. Best, its to drop it hard.. I was not able to drop it at more then 5700 RPM, because it was slipping after that. my 0-60 feet was 2.02 sec.

For shifting.. I did a lot of test also. redline, 6000 or 6200 rpm.. Best thing was Redline all the way ...
btw, my car is a 98RS, so my redline is 6500

Tony, Ya,maybe I live in Canada, but its not always under 0.. hehe. We also got a summer over here.. When I did that, it was arround 25 celcius.. I think that its arround 80F.

So thats about it..
Now, I cant wait to see my time with my turbo, ACT clutct and lightweight flywheel.

Take care guys.
Mike M.



[This message has been edited by Mike Moffa (edited June 30, 2000).]
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Old 06-30-2000, 07:48 AM   #17
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Wink

I think Mike just got a Wednesday car that was made after bonus checks were given out.
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Old 06-30-2000, 07:57 AM   #18
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Mike, thanks for clearing up that it's not below 0 degrees C, for the majority of the year up here in Canada!
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Old 06-30-2000, 08:00 AM   #19
Mike Moffa
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Hehe OG, me a all my friends think the same thing. hehe. I beat my car like hell, and I did not have any trouble with it, and I am able to stay with the 99 even if I am supose to be less fast then them. I did not have any failure on my car, except for my shifter linkage that was making noise .. need to be change 2 times.


But with the news that Trey just came out, maybe that will explain.. If he is right, I got a Phase II engine with DOHC in my 98 RS.

take care
Mike M


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Old 07-01-2000, 01:37 PM   #20
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15.2! Stock?! Well then this is going to sound really pathetic.

My best time is a 16.4. My excuse is that I'm a piss-poor driver. It's also still over 100 deg F (that's almost 38 deg C for you metric types) at 10:00 PM in the summer in Phoenix, AZ. I think you just have more air in Canada.

Back to that driver thing. I haven't made 20 runs in my life. But I can second the launch and shift as close to redline as you can. I was launching at 3-4k and running 16.6 or slower. A friend (who didn't have to make the car payment) borrowed the car and did 16.3 by launching above 5k. I did the same on my next run and got that 16.4.

15.2!


- Edit: had to fix my rassy-smilie.

[This message has been edited by Red-Impreza (edited July 01, 2000).]
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Old 07-01-2000, 03:50 PM   #21
Harj
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Hi Guys,

Over here in the UK, I managed a 12.7 seconds 1/4 mile in my 97 WRX. Fastest Impreza at Santa Pod so far.

Harj...
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Old 07-01-2000, 08:47 PM   #22
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How bad is dropping the clutch on a stock clutch? I haven't been to the tracks yet, but I will be going soon. I wouldn't mind dropping the clutch at high rpms, but I just wondered if it would kill the stock clutch. And some have said that on an awd it isn't too good. Any truth?
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Old 07-01-2000, 09:23 PM   #23
Mike Moffa
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Ragstylz.. Thats depend on how you drive your car.. the style of driving it..
I know people that change their clutch at each 20 000kms (12 500 miles).

And other people, like me, that just get my clutch change (because of the turbo) at 50000 kms (31 100miles) and the dealer told me that my clutch was nothing wrong with this clutch, it was like a normal clutch.. he said that I was able to make another 50 000 kms without any problem with it (with a N/A car) , the clutch was little bit burn, but that was normal..

And that was with 52 races at the 1/4 track last year, Solo 2 events, Solo Driving school. Rally driving school.. And everyday beat up.. hehe.

the only thing you need to do, or not to do. its to slip the clutch.. As soon as you slip the clutch, you will burn it.. and when its slip, its slip for a while.. Our clutch really dont like to slip (any clutch like to slip) .. I notice that on the track. I try couple of launch with the clutch slipping and the clutch was not able to get some traction before a while..

Same thing on the street, dont make your clutch slip on the hill. Dont hold your car on the hill with your clutch.. Use your brake, its make for that. hehe.
I saw some people doing that. hehe.

Oh, btw. I just saw that you came from NB.. Do you gone to be at Baie des Chaleurs Rally ??? We will be at Caplan. you know where is that ?

Gave me some news, maybe we can meet up.. We should be a lot of people going there..

Take care
Mike M
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Old 07-02-2000, 03:58 AM   #24
jacktam1
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My best time for MY00/4A is 15.86's at135km..
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Old 07-02-2000, 09:05 AM   #25
MrSube2pt5
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I yanked off the line with a 1.9 60 ft. Can anyone match that? Unfortunately i only ran a 15.7 @86 mph with that 60 ft time. I think I'll run my car again in the winter when it's extremely cold out.
justin
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