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Old 04-13-2015, 11:01 PM   #1
SpeedShift
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Default stock 2015 STi at the drag strip

edit; I meant 2015, har har.....

I am pretty happy with the results, my time slips and my video of the runs below.

car is # 31.

is Subaru hiding something with their new ecu tune?....



https://www.youtube.com/watch?v=2i640AnKJiM











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Last edited by SpeedShift; 04-16-2015 at 12:12 AM. Reason: thread title correction
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Old 04-14-2015, 09:51 AM   #2
Irv Weissmanhowerton
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That is pretty good driving and times for a completely stocker
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Old 04-14-2015, 01:01 PM   #3
4Warned
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Nice consistent driving.

Props.
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Old 04-14-2015, 01:59 PM   #4
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2105...still on the EJ trapping 103 stock whereas most cars are trapping 250mph nowadays

I still miss my STi that I bought 97 years ago, that was a fine machine
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Old 04-14-2015, 02:20 PM   #5
SpeedShift
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Quote:
Originally Posted by user1029 View Post
2105...still on the EJ trapping 103 stock whereas most cars are trapping 250mph nowadays

I still miss my STi that I bought 97 years ago, that was a fine machine
mods please correct thread title!
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Old 04-14-2015, 05:05 PM   #6
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Good driving and thanks for posting

Regards.
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Old 04-14-2015, 07:48 PM   #7
SpeedShift
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thanks

I am wondering if 12.99 is possible with a 1.7 or better 60'
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Old 04-15-2015, 01:11 AM   #8
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Awesome man, keep the videos coming and make that time of 13.1!!
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Old 04-15-2015, 09:29 AM   #9
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Car is full weight correct?
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Old 04-15-2015, 09:56 AM   #10
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Good driving, enjoyed your video. If you were able to cut a high 1.7 I could see your time hitting 13.1, the gearing seems to be close to my old 05, where it's a pain to choose between topping out 4th or hitting 5th.

Either case, fast ride for being stock.
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Old 04-15-2015, 02:33 PM   #11
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Quote:
Originally Posted by AnthonyC.01 View Post
Good driving, enjoyed your video. If you were able to cut a high 1.7 I could see your time hitting 13.1, the gearing seems to be close to my old 05, where it's a pain to choose between topping out 4th or hitting 5th.

Either case, fast ride for being stock.
do you know exactly what gear the race usually ended? I am asking because I may have let off a tad early and coasted to the finish line in a couple of runs. the signs did not light up until after you were well passed them and there was no marking on the track to indicate anything.

so I let off before the end of 4th. next time I will go until well into 5th. I could have lost 1 mph or so, I am not sure.
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Old 04-15-2015, 02:42 PM   #12
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Quote:
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Car is full weight correct?
I removed the space saver spare tire to compensate for the optional 9 speaker harmon kardon audio system with subwoofer and external amplifier that I have.

I am 180lbs as the driver.

the car is bone stock. I do not have plans to modify it intend on keeping it stock.
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Old 04-15-2015, 02:50 PM   #13
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I plan on going to the track again in a few days. temps should be in the low 60, so it would be another perfect day for making good horse power.

this time, though, I will disable the traction control and brake vectoring. my focus is for 1.7 60' this time and not letting off until 5th gear or ride fourth until it bounces off the rev limiter to ensure I cross the finish line at full throttle.

I also plan on being more relaxed and will leave after the green light.

.....so many factors at work just to go in a straight line!
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Old 04-15-2015, 03:28 PM   #14
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Quote:
Originally Posted by SpeedShift View Post
do you know exactly what gear the race usually ended? I am asking because I may have let off a tad early and coasted to the finish line in a couple of runs. the signs did not light up until after you were well passed them and there was no marking on the track to indicate anything.

so I let off before the end of 4th. next time I will go until well into 5th. I could have lost 1 mph or so, I am not sure.
Unless things have changed since my days at the strip (and they may have, it's been a long time... although not likely) your ET occurs when you go through the lights at the far end... but your speed is calculated between a bracket that occurs 66 feet before until 66 feet AFTER the timing lights.

Therefore, to get your best speed numbers you do not want to lift until well past the end... or certainly not before 66 feet AFTER THE LIGHTS.
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Old 04-15-2015, 03:50 PM   #15
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I did lift off past then end, if you watch my video. I did not lift off before crossing the lights, though.

I will hope to find out what happened on my next outing.
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Old 04-15-2015, 03:51 PM   #16
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1/4 mile MPH is the average speed as calculated between the trap box that's 66 feet short of the finish and the trap box at the finish. It is not your ending MPH right at the finish. You're actually going fractionally faster at the finish line.

If you want a faster trap speed, then shallow stage. Shallow staging is when you creep up VERY slowly to set the "stage" light (ie second set of staging lights). By shallow staging, you'll get about a 6" rollout before the timers are tripped. By shallow staging, you can gain around 1.5mph in 1/4 mile MPH.

If you want a better reaction time and potentially a fractionally quicker ET, then deep stage. Deep staging is when we creep up as far as you can after the stage light has been set, but not so far that the stage lights go out.
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Old 04-15-2015, 03:53 PM   #17
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OP, nice runs and good driving. Those ETs and MPHs are consistent with well-driven last gen GR STIs which is to be expected given the same engine and drivetrain and weight. Well-driven stock GR STIs and WRX have seen 13.2-13.4@101-104mph, though most go 13.5-13.7@99-101mph. The quickest documented stock GRs are a few WRXs that went 12.9-13.1@103-104mph.
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Old 04-15-2015, 04:07 PM   #18
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Quote:
Originally Posted by MaddMax View Post
1/4 mile MPH is the average speed as calculated between the trap box that's 66 feet short of the finish and the trap box at the finish. It is not your ending MPH right at the finish. You're actually going fractionally faster at the finish line.

If you want a faster trap speed, then shallow stage. Shallow staging is when you creep up VERY slowly to set the "stage" light (ie second set of staging lights). By shallow staging, you'll get about a 6" rollout before the timers are tripped. By shallow staging, you can gain around 1.5mph in 1/4 mile MPH.

If you want a better reaction time and potentially a fractionally quicker ET, then deep stage. Deep staging is when we creep up as far as you can after the stage light has been set, but not so far that the stage lights go out.
More like it ... like I said, it's been a long time. One thing for sure, don't assume the end. Won many inside of what seemed an inch at the end.

And for sure, that's great consistent driving... equaling what seems about the best the stock '15 STi does.
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Old 04-15-2015, 04:10 PM   #19
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Maddmax

Check your facts what you said about deep and shallow staging is wrong
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Old 04-15-2015, 05:57 PM   #20
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Summit Racing has a good read here that clarifies a lot of questions about staging.

Personally, despite years of racing and thousands of trips down the strip, I stayed with the same technique... shallow stage and leave on the last yellow.

OP did good. There's a youtube video of someone doing his best to make his '15 STi equal the magazines' times, who essentially did the same as he did.

Here is that video: https://www.youtube.com/watch?v=2i640AnKJiM

Last edited by SeeeeeYa; 04-15-2015 at 06:19 PM.
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Old 04-15-2015, 06:00 PM   #21
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Quote:
Originally Posted by SpeedShift View Post

is Subaru hiding something with their new ecu tune?....
Proly not...

My stock 2006 STI had similar times....mine was actually faster. At the time I just got the car and never ran it again stock but its obvious I coulda went quicker

http://forums.nasioc.com/forums/show....php?t=1461216
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Old 04-15-2015, 09:15 PM   #22
SpeedShift
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Quote:
Originally Posted by Paul View Post
Proly not...

My stock 2006 STI had similar times....mine was actually faster. At the time I just got the car and never ran it again stock but its obvious I coulda went quicker

http://forums.nasioc.com/forums/show....php?t=1461216
Nice run. I know that cooler weather and 10mph tail wind like your run would have hwlped me, too.

I dont doubt that some older gens were factory-capable of pulling off these high trap speeds, but they must have been rare. I think that the new sti is underrated because they can consistently achieve higher trap speeds despite being 126lbs heavier and 300rpm less rev limiter.
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Old 04-17-2015, 04:08 AM   #23
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??? The MY15 STI is about 1kg heavier than the last STI e.g. negligible difference and its coefficient of drag is about 9% less than the last model e.g. significantly lower (which is good for ~1 to 3mph at 100mph).

There are no hidden ponies

PS Good run
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Old 04-17-2015, 07:33 AM   #24
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Quote:
Originally Posted by RandR View Post
??? The MY15 STI is about 1kg heavier than the last STI e.g. negligible difference and its coefficient of drag is about 9% less than the last model e.g. significantly lower (which is good for ~1 to 3mph at 100mph).

There are no hidden ponies

PS Good run
Noooooo!!! Go back under the rock from whence you crawled.
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Old 04-17-2015, 08:11 AM   #25
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Usch - oh dear - you believe in fairies and magic HP

The smart people, already know the current STI has the same WHP as the out going model. They actually understand concepts such as the effect of drag etc

AND THAT TWO CARS WITH THE SAME DRIVE TRAIN, SAME MASS, SAME GEARING, ON THE SAME DAY WITH THE SAME DRIVER WILL PUT DOWN THE SAME NUMBERS IN A SHORT TEST E F*ING G 0-100kmh. in a higher speed test drag comes into play - 1 to 3 mph at 100 mph and 5 to 8 mph at 150 mph because the new car has much better aero you f*ing imbecile. This has been shown ad nauseum and ad infinitum

**ss off to general where the special needs team meets or better still IWSTI AKA the land of the dead

Last edited by RandR; 04-17-2015 at 08:21 AM.
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