Welcome to the North American Subaru Impreza Owners Club Friday October 31, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-09-2010, 02:23 PM   #26
Tessai
Scooby Newbie
 
Member#: 214184
Join Date: Jun 2009
Location: Dallas, TX
Vehicle:
1999 Legacy Outback
White

Default

Quote:
Originally Posted by Mechkiller31st View Post
(though 114 limited isnt exactly high speed)
No, of course not. Being within spitting distance of double the speed limit isn't fast at all. . 114mph is 167.2ft/sec. I highly doubt your headlights adequately light the road that far out. Giving you the benefit of the doubt that you have a blazing-quick .2sec reaction time, you'll still cover roughly 33.5 ft in that amount of time. In other words, you'll travel slightly more than two car lengths (based on the 15.5ft length of a 1998 wagon) before you have a chance to react. Assuming the 2508lb curb weight of a stripped-out sedan, whatever you just hit (that you didn't have the reaction time to see, remember) will be smashed by 13033.4 lbs of force. Yes, that is akin to being hit by something weighing thirteen thousand pounds, or roughly six and a half tons. It won't tickle.

Quote:
though mind you i do not promote nor condone street racing and/or its lifestyle
Of course you don't condone it. You just post on internet message boards about how you do it. Do as I say, not as I do, right?
* Registered users of the site do not see these ads.
Tessai is offline   Reply With Quote
Old 06-09-2010, 02:41 PM   #27
jeonster
Scooby Newbie
 
Member#: 198854
Join Date: Dec 2008
Chapter/Region: NESIC
Location: Hartford, CT
Vehicle:
2013 WRX
Silver

Default

someone did the math.
jeonster is offline   Reply With Quote
Old 06-09-2010, 03:51 PM   #28
Mechkiller31st
Scooby Specialist
 
Member#: 38474
Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Beach Park IL, USA
Vehicle:
1998 Impreza Wagon L
Brilliant Red

Default

Quote:
Originally Posted by Tessai View Post
No, of course not. Being within spitting distance of double the speed limit isn't fast at all. . 114mph is 167.2ft/sec. I highly doubt your headlights adequately light the road that far out. Giving you the benefit of the doubt that you have a blazing-quick .2sec reaction time, you'll still cover roughly 33.5 ft in that amount of time. In other words, you'll travel slightly more than two car lengths (based on the 15.5ft length of a 1998 wagon) before you have a chance to react. Assuming the 2508lb curb weight of a stripped-out sedan, whatever you just hit (that you didn't have the reaction time to see, remember) will be smashed by 13033.4 lbs of force. Yes, that is akin to being hit by something weighing thirteen thousand pounds, or roughly six and a half tons. It won't tickle.

Of course you don't condone it. You just post on internet message boards about how you do it. Do as I say, not as I do, right?
nice math.... made me think a bit

now since all the negative see if you can find this info

# of street racers killed during a race by another street racer

vs

# of innocent people killed by street racers during a race

vs

# of street racers killed by other drivers onthe road that simply dont pay attention to their own driveing (I.e. no turn signals, not checking mirrors, not proper lane changes, not giving right of way, ect...)
Mechkiller31st is offline   Reply With Quote
Old 06-09-2010, 04:15 PM   #29
s0ber_p
Scooby Newbie
 
Member#: 172689
Join Date: Feb 2008
Vehicle:
2004 WRX
PSM

Default

Quote:
Originally Posted by Mechkiller31st View Post
nice math.... made me think a bit

now since all the negative see if you can find this info

# of street racers killed during a race by another street racer

vs

# of innocent people killed by street racers during a race

vs

# of street racers killed by other drivers onthe road that simply dont pay attention to their own driveing (I.e. no turn signals, not checking mirrors, not proper lane changes, not giving right of way, ect...)
Im not even going to bother looking up the numbers on those, because i know the point you are trying to make. They big difference is the #of street racers killed by other people is because THEY WERE STREET RACING! If the same incident occurred during "normal driving conditions" it would result in maybe a swerve or a horn and a finger. Add 20,30,40,50 MPH into that equations and thats why you get people killed. Still the fault of the dumbass street racer. /rant
s0ber_p is offline   Reply With Quote
Old 06-09-2010, 04:55 PM   #30
Tessai
Scooby Newbie
 
Member#: 214184
Join Date: Jun 2009
Location: Dallas, TX
Vehicle:
1999 Legacy Outback
White

Default

Quote:
Originally Posted by Mechkiller31st View Post
nice math.... made me think a bit



now since all the negative see if you can find this info



# of street racers killed during a race by another street racer



vs



# of innocent people killed by street racers during a race



vs



# of street racers killed by other drivers onthe road that simply dont pay attention to their own driveing (I.e. no turn signals, not checking mirrors, not proper lane changes, not giving right of way, ect...)


Really wasn't my intention to derail this thread into a street racing argument but if this is what you want to do, so be it.



First of all, I'm not going to do any research into the number of people killed in whatever activity. It isn't worth my time and the numbers are largely skewed by what local law enforcement terms as street racing as well as what the local media reports.

Second of all, I'm not going to sit here and preach about safe driving. We're all guilty of exceeding the speed limit and engaging in some more sprited driving than we should be, especially when the roads are empty.



That said, there is a huge difference between doing 20mph over the speed limit and passing people while in the fast lane (IE: doing 80mph in the left lane) and doing 114mph on a public road, at night, with the piss-poor visibility given off by a 12 year old electrical system through lenses with 12 years worth of scratches, dirt, degregation of the plastic, and all the other factors that go into it. The fact that you try to justify this action by trying to claim street racers take lives of people because said person didn't use a turn signal shows that you lack the maturity to truly comprehend your actions and their consequences.

Where in my post did I say that you had to hit someone for that sort of force to be applied? Your average highway is covered in all sorts of debris, and at your max speed you're describing you won't see that chunk of tire tread before it is too late. Or that pothole. Or that concrete barrier they put up last night to redirect traffic around the new construction.

Let's slow it down a little. Now I'm rounding to whole numbers to keep this all nice and tidy, so these numbers aren't really this clean but its enough to illustrate a point. I want you, tonight, to go out and drive around. Pay attention to how far out an object is before it become recognizable in your headlights. Get on the highway and try it. At 70mph, each second is about 100ft. So, as soon as you recognize something, count off the seconds. One-one-thousand. Two-one-thousand. I don't mean count off from when you can read a street sign. Watch the shoulders. Is that a rock or a discarded soda can? Is that dark spot a piece of tire, or a pothole?

How close are you to these objects before you can guess what they are? If they're any closer than 1.64 seconds you've already hit it at your top speed, without even realizing they are there. If they are between 1.64 seconds and 1.84 seconds, you've seen it but you didn't have time to react.

Next, time your steering inputs. How quick is it between you turning the steering wheel and making it into the next lane? If it takes one full second to turn the wheel and have the car move into the next lane, combined with our lightning fast .2sec reaction time, we've just covered 361 feet. That's 23 car lengths at your 114 mph. 17 car lengths at 80mph. 12 car lengths at 60mph.

How many car lengths away are those objects in your headlights?
Tessai is offline   Reply With Quote
Old 06-09-2010, 05:00 PM   #31
2.5i guy
Scooby Newbie
 
Member#: 151509
Join Date: Jun 2007
Location: Cincinnati/ Waynesville
Vehicle:
2007 impreza 2.5i
Wanna be rally car

Default

I look at it this way, if Subaru didn't want me to rev the wee out of my car, they wouldn't have put max torque and horsepower so high up in the rpm range. my car has seen 6k just about everyday for the past three years.
2.5i guy is offline   Reply With Quote
Old 06-09-2010, 05:24 PM   #32
s0ber_p
Scooby Newbie
 
Member#: 172689
Join Date: Feb 2008
Vehicle:
2004 WRX
PSM

Default

back on topic, I do rev the piss out of my car every chance I get. Oil changes every 3000 miles during the off season, and every 1500 during the race season(pretty much every event). That being said, i spun a bearing at just shy of 90000 miles. There is no sure fire way to judge how long the engine will last. Also, I bought the car with about 50k on the odometer, so i have no idea how it was really treated before then.
s0ber_p is offline   Reply With Quote
Old 06-09-2010, 05:36 PM   #33
2.5i
Scooby Specialist
 
Member#: 112986
Join Date: Apr 2006
Chapter/Region: NWIC
Location: Camano Island
Vehicle:
N/A Cam'd & Cornfed
DOM TUNED 06 Impreza

Default

I've had 4 engines in my 2.5i and its on its 4 or 5 tranny rebuild. The car no sits with roughly 130k on it and I bought it with 34 miles on it. The harder you drive your car the less reliable it gets.
2.5i is offline   Reply With Quote
Old 06-09-2010, 07:07 PM   #34
vrusso
Scooby Specialist
 
Member#: 207074
Join Date: Mar 2009
Chapter/Region: BAIC
Location: Sacramento California
Vehicle:
2015 STI
You know you're jealous

Default

Quote:
Originally Posted by 2.5i View Post
I've had 4 engines in my 2.5i and its on its 4 or 5 tranny rebuild. The car no sits with roughly 130k on it and I bought it with 34 miles on it. The harder you drive your car the less reliable it gets.

2.5i
Scooby Specialist

Member#: 112986
Join Date: Apr 2006
Chapter/Region: NWIC
Location: Camano Island
Vehicle:
N/A Cam'd & Cornfed
DOM TUNED 06 Impreza <-----This might have something to do with it.....
vrusso is offline   Reply With Quote
Old 06-09-2010, 07:38 PM   #35
flightwatch
Scooby Specialist
 
Member#: 231058
Join Date: Nov 2009
Chapter/Region: South East
Location: St Petersburg, FL
Vehicle:
2013 Genesis Coupe
2.0T

Default

flightwatch is offline   Reply With Quote
Old 06-09-2010, 08:11 PM   #36
Audi20Tdriver
Scooby Newbie
 
Member#: 206040
Join Date: Mar 2009
Location: Carlsbad, CA
Vehicle:
2009 Audi A4 2.0T
APR Stage 1

Default

I think this goes back to that old adage about driving a slow car fast.. My RS used to see 5K per shift easily.. 4-5k seemed to be the sweet spot with all the midrange torque.. it got good mileage doing that too.. not the case on the new one.. If you had a relatively powerful car between the fuel consumption and the rate at which it accelerated, you would not be driving it so hard on the street, because there really isnt anywhere to go during most DD situations.
Audi20Tdriver is offline   Reply With Quote
Old 06-10-2010, 08:59 PM   #37
GZoomer
NASIOC Supporter
 
Member#: 664
Join Date: Dec 1999
Location: minocqua,wi USA
Vehicle:
2003 Legacy GT
Black

Default

Quote:
Originally Posted by maruksai View Post
Is it bad to redline your engine on a daily basis? How would it affect long term engine life? Will I see 150k-200k miles?

not near as hard on it as lugging the engine or wot at low rpm.
GZoomer is offline   Reply With Quote
Old 06-10-2010, 09:46 PM   #38
dstan
Scooby Specialist
 
Member#: 120386
Join Date: Jul 2006
Chapter/Region: South East
Location: Asheville NC
Vehicle:
2000 BRP 2.5RS Coupe
Wow the 89 Civic is fast

Default

Quote:
Originally Posted by 2.5i View Post
I've had 4 engines in my 2.5i and its on its 4 or 5 tranny rebuild. The car no sits with roughly 130k on it and I bought it with 34 miles on it. The harder you drive your car the less reliable it gets.
umm you are doing it wrong
dstan is offline   Reply With Quote
Old 06-10-2010, 09:55 PM   #39
chazly413
Scooby Specialist
 
Member#: 151079
Join Date: Jun 2007
Chapter/Region: MAIC
Location: College Park, MD
Vehicle:
2005 2.5RS RBP
motec system exhaust-RIP

Default

Quote:
Originally Posted by dstan View Post
umm you are doing it wrong
I concur, doctor.
chazly413 is offline   Reply With Quote
Old 06-11-2010, 12:09 AM   #40
jamal
Scooby Guru
 
Member#: 71875
Join Date: Oct 2004
Location: Montana
Vehicle:
98 2.5GT
my wheels fit

Default

I've broken two motors over my 10 years of subaru ownership, and I can directly attribute it to the abuse I put them through
jamal is offline   Reply With Quote
Old 06-11-2010, 03:56 AM   #41
Audi20Tdriver
Scooby Newbie
 
Member#: 206040
Join Date: Mar 2009
Location: Carlsbad, CA
Vehicle:
2009 Audi A4 2.0T
APR Stage 1

Default

There is quite a difference between abuse and hard usage. The general consensus of this thread is that hard usage with proper maintenance and care should not lead to this.
Audi20Tdriver is offline   Reply With Quote
Old 06-11-2010, 05:42 AM   #42
sniper1rfa
Scooby Specialist
 
Member#: 141040
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Designing things
Vehicle:
07 2.5i wagon
UGM

Default

Quote:
Originally Posted by 2.5i View Post
I've had 4 engines in my 2.5i and its on its 4 or 5 tranny rebuild. The car no sits with roughly 130k on it and I bought it with 34 miles on it. The harder you drive your car the less reliable it gets.

Seriously

Learn to drive.
sniper1rfa is offline   Reply With Quote
Old 06-11-2010, 01:04 PM   #43
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

1) Speed weenies I hit a groundhog so fast last week that he landed on both sides of the road.

2) It's not revving that kills the engine, it's low oil temperatures. Give it any real load, or any real revs, with the oil temp under 140, and you're asking for failure.
williaty is offline   Reply With Quote
Old 06-11-2010, 01:10 PM   #44
chazly413
Scooby Specialist
 
Member#: 151079
Join Date: Jun 2007
Chapter/Region: MAIC
Location: College Park, MD
Vehicle:
2005 2.5RS RBP
motec system exhaust-RIP

Default

Quote:
Originally Posted by williaty View Post
2) It's not revving that kills the engine, it's low oil temperatures. Give it any real load, or any real revs, with the oil temp under 140, and you're asking for failure.
Yup yup.
chazly413 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
High HP high reving subarus, what oil pump & thoughts on aftermaket oil pan & baffle? D Money Built Motor Discussion 66 05-17-2009 12:13 PM
high-reving built 2.0L ImprezaRSfan! Built Motor Discussion 20 07-16-2006 12:57 AM
High reving Honda owners, explain something. Rev Off-Topic 148 01-03-2006 04:36 AM
Is it any harmful for car to take off the front grill? cinemaster Interior & Exterior Modification 24 02-23-2005 04:41 PM
Is this normal/harmful notraceready Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 3 01-23-2005 02:41 PM


All times are GMT -4. The time now is 01:21 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.