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Old 10-22-2012, 07:42 PM   #1
yoshi0423
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Question How much abuse can my STI take?

I've had my 05' STI for a 1.5 years and started tracking it his year. Currently sitting at 27,xxx miles.

What I'm really curious about is how much abuse can the engine & transmission take? How long can I except everything to run without blowing up.

If anyones been tracking theirs for a long time without issues, I'd love to hear about it. Obviously if the opposite has happened I wanna hear about it too.

Thanks
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Old 10-22-2012, 09:26 PM   #2
HinshawWRX
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We cannot even begin to answer this. Farrrrrrrr too many variables to even get a hint at.
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Old 10-22-2012, 09:52 PM   #3
teesutt
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ibtl

as he said, nobody can answer this.
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Old 10-22-2012, 09:53 PM   #4
Jacobs11
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The crystal ball tells me you have exactly 23,570 miles left on the engine and 69,696 left on the tranny
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Old 10-22-2012, 09:59 PM   #5
bacalhau16
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If you are looking ti abuse your car, then you need to stay on top of it more and take THE MOST precautionary measures that you can. The basics ofcourse; oil, coolant, general maintains stuff. But then perhaps look further; killer b oil pickup tube, protune or some form of a better tune then stock. Things of that nature.
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Old 10-22-2012, 10:00 PM   #6
lavid2002
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Just be good to it. If you're tracking it all the time don't expect it to last forever. If you really want it to last study up on it and learn what you can do to add some longevity to it. Service, etc..

If you are tracking it there are better oil pickups and pans to prevent oil starvation.
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Old 10-23-2012, 05:30 AM   #7
A-man07
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This is like asking your doctor how long you have to live.
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Old 10-23-2012, 05:37 AM   #8
fr0st
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One thing is for sure,

It is not normal use of a car. It wasn't engineered for it. So it's life should be shorter than than using it just as a DD.

You have to pay to play.
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Old 10-23-2012, 07:28 AM   #9
yoshi0423
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Quote:
Originally Posted by A-man07 View Post
This is like asking your doctor how long you have to live.
And your docotor can point you to the current average lifespan of a male/female.

I understand there isn't a specific answer, but I always thought that STI was built for a little more abuse than your average car.

I guess what I really want to hear is people that have been tracking their and their experiences with it.

I UNDERSTAND that **** is going to break.
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Old 10-23-2012, 07:40 AM   #10
StripesRX
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I have been tracking my car for 3 years now. Stock block, stock turbo, catback/intake, EFI Logics Pro-tune.

I change the oil before and after every event. It's been through 29 track days so far. We just did a compression test, 145 on all cylinders. 75k on the engine.

With track use, just remember to change out your fluids very often.

Enjoy the car like it was supposed to be.
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Old 10-23-2012, 08:19 AM   #11
guroove
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Quote:
Originally Posted by StripesRX View Post
I have been tracking my car for 3 years now. Stock block, stock turbo, catback/intake, EFI Logics Pro-tune.

I change the oil before and after every event. It's been through 29 track days so far. We just did a compression test, 145 on all cylinders. 75k on the engine.

With track use, just remember to change out your fluids very often.

Enjoy the car like it was supposed to be.
Tuning is critical in preventing ringland failure in the EJ257, even with stock everything. Take this man's advice.
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Old 10-23-2012, 08:20 AM   #12
yoshi0423
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I have Cobb Stage 1... is that any better?
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Old 10-23-2012, 08:47 AM   #13
Paidfor
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^^^A little..but your gonna need a pro tune for sure........mine let go at 46000..all stock
Good ole #4 ringland
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Old 10-23-2012, 10:15 AM   #14
guroove
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Quote:
Originally Posted by yoshi0423 View Post
I have Cobb Stage 1... is that any better?
I busted a ringland in my 2005 Forester XT (same shortblock as the STI) on a Cobb stage 1 tune. I'm pretty sure it was on a long WOT pull.
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Old 10-23-2012, 11:50 AM   #15
subenerd
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Avoid sustained high rpms.
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Old 10-24-2012, 03:35 AM   #16
Brother EddieJ.
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Quote:
Originally Posted by fr0st View Post
One thing is for sure,

It is not normal use of a car. It wasn't engineered for it. So it's life should be shorter than than using it just as a DD.

You have to pay to play.
Then why did they come with a free 1 year membership to SCCA when bought brand new from Subaru?
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Old 10-24-2012, 04:24 AM   #17
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Quote:
Originally Posted by yoshi0423 View Post
I've had my 05' STI for a 1.5 years and started tracking it his year. Currently sitting at 27,xxx miles.

What I'm really curious about is how much abuse can the engine & transmission take? How long can I except everything to run without blowing up.

If anyones been tracking theirs for a long time without issues, I'd love to hear about it. Obviously if the opposite has happened I wanna hear about it too.

Thanks
Get a Si or used S2000 I've revved to 9200 rpm in my old Si everyday without any flaws. Of course my ECU was re flashed but my rods and springs were all stock. I could easily pass a WRX
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Old 10-24-2012, 07:48 AM   #18
StripesRX
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Quote:
Originally Posted by fr0st
One thing is for sure,

It is not normal use of a car. It wasn't engineered for it. So it's life should be shorter than than using it just as a DD.

You have to pay to play.
Quote:
Originally Posted by subenerd
Avoid sustained high rpms.
Quote:
Originally Posted by Ghidorah

Get a Si or used S2000 I've revved to 9200 rpm in my old Si everyday without any flaws. Of course my ECU was re flashed but my rods and springs were all stock. I could easily pass a WRX
It seems the interwebs experts have arrived!

Seriously. Preventative maintenance, a good tune, go racing. If you're really worried grab a wideband Air/Fuel and an oil pressure gauge. As long as you don't over rev the engine, high RPMs won't hurt anything.
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Old 10-24-2012, 11:47 AM   #19
live2ridebykes
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Default Forged is the way to go

The tranny will out perform the engine any day. Thats assuming its stock. However if you are going to track i strongly suggest getting forged pistons, many of you are probably thinking well it doesn't need forged pistons unless he wants to make 500hp. Wrong the stock pistons used in our STI's are junk, ive had to replace a short block twice now because of broken ringlands, and im talking brand new factory shortblock, and no not a bad tune, stock motor, stock turbo. The composite metal pistons used are not sufficient. While your in there throw in ACL Racing bearings to eliminate the second most common failure. Throwing out a bearing, replace both main and rod its like $100 for the set.
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Old 10-24-2012, 02:17 PM   #20
subenerd
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Quote:
Originally Posted by StripesRX View Post

high RPMs won't hurt anything.
Sure you can wrap out a gear to redline, just shift quickly to the next gear. These motors were not designed to hang at near redline for extended amounts of time.
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Old 10-24-2012, 02:53 PM   #21
sry110
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I look at it this way: metals have a certain 'endurance limit', where the metal component will theoretically last forever (i.e. "infinite load cycles") if the stress on the component does not exceed the endurance limit. If you exceed the endurance limit, the number of allowable load cycles decreases, exponentially depending on how much you exceed the limit, and of course more immediate failure can occur if you flat out exceed the ultimate yield strength of the material.

In terms of the car: the engine is advertised at ~300HP at some engine speed, but I would venture a guess that at ~300HP output you are above the endurance limit of the engine (I'm oversimplifying because the engine is made of so many parts), and therefore you will not get infinite life out of the engine at 300HP. However theoretically if you ran the engine continuously at ~50HP output, it should live forever (again theoretically assuming proper lubrication and other maintenance to keep it circulating and breathing healthily).

<----- Is a mechanical engineer
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