Rodder's STi aka Danas old car - TriStateTuners.com :: Home of Tristate Auto Enthusiast

RyanG · 05-14-2008, 08:24 PM

a lot of people have been wondering what has been up with this car so here goes.

Andy brought the car to us suspecting of low compression in cyl 4. We did a compression and leak down test and found that #4 was definitely low and most likely had a broken ringland.

Andy dropped the car off and we got to work asap. We got the old motor torn down and the brand new stock shortblock built back up in just a days time.

I decided to pull the #4 piston out of the old shortblock to see what actually happened as there was zero evidence on top of the piston.

here goes :D
the red arrows (my sick drawing skills) are cracks. aka broken

old shortblock

yay new wrinkle red vc's and new motor

poor thing

lagos · 05-14-2008, 08:37 PM

Nice work. You sure do know your subarus!
Wouldn't it have been cheaper to just replace the one ring land then for him to buy a new shortblock?

TurboTagTeam · 05-14-2008, 08:42 PM

Detonation?

lagos · 05-14-2008, 08:44 PM

Quote:

Originally Posted by TurboTagTeam

Detonation?

Killing ringlands and headgaskets since the invention of the turbo charger.

RyanG · 05-14-2008, 08:53 PM

Quote:

Originally Posted by lagos

Nice work. You sure do know your subarus!
Wouldn't it have been cheaper to just replace the one ring land then for him to buy a new shortblock?

we could have dropped in a set of pistons, but at the time didn't know what happened internally. He is kind of on a time crunch as he would like to actually drive the car for once

A new shortblock was the best option

Quote:

Originally Posted by TurboTagTeam

Detonation?

bingo

igo4bmx · 05-14-2008, 08:57 PM

damn did he buy the car with #4 like that?

TurboTagTeam · 05-14-2008, 09:45 PM

Quote:

Originally Posted by AREA1320

we could have dropped in a set of pistons, but at the time didn't know what happened internally. He is kind of on a time crunch as he would like to actually drive the car for once

A new shortblock was the best option

bingo

Did the heads have little pit marks on them? Like around the valves? That's normally how I tell how bad it was.

wgknestrick · 05-14-2008, 09:59 PM

Unless he changed anything with the tune or the amount of boost he runs, be prepared to do the same thing again shortly. Just because you now take the Valtrex doesn't mean you can tell people you don't have Herpes.

I am certainly not criticizing just trying to be helpful.

RyanG · 05-14-2008, 10:24 PM

Bill you know I always value your insight

Yes he bought the car like this. No we don't know why it happened.

2 guesses.

1- the car was tuned on meth, the tank is empty
2- the tank was filled with anything other than 93

the pump gas tune wasn't aggressive at all. the meth tune on the other hand........ :P

and obviously the car will get a retune. He drove it home and pretty much the next day called me up asking for advice as he thought the car was acting strange.

For the average person the car drove and moved pretty good, but being I know what the car felt like at peak power I knew something was up.

OMGz Turbo · 05-15-2008, 12:36 AM

So was the car done for before the purchase?? Or afterwards?

**Ender81** · 05-15-2008, 07:17 AM

Was there any damage to the shortblock?

Honest_Bob · 05-15-2008, 07:18 AM

Quote:

Originally Posted by Ender81

Was there any damage to the shortblock?

I smell scavenger...

I saw this yesterday. I want a 2.5 shortblock.

**Ender81** · 05-15-2008, 07:56 AM

Quote:

Originally Posted by Honest_Bob

I smell scavenger...

I saw this yesterday. I want a 2.5 shortblock.

Damn straight you do lol. I wants me my hybrid lol

rodder · 05-15-2008, 08:12 PM

wow stock STi pistons ****ing own.

I'm gonna have the car tuned even more conservatively than the first time this go-round as I couldn't really care less about numbers. I just want a fast, reliable daily driver with smooth power delivery.

it was kinda weird as my first inclination after noticing something didn't seem right was to pull the plugs. No sign of det on any of them. I only did the compression test for ****s and giggles since I already had the plugs out and sure enough, low #4.

My plans for the original short block are probably going to include having the cylinders honed and dropping in a set of forged pistons with new rings. I'll keep it as a back up short block long enough for the new motor to gain my trust. Once I've beat on the car for a little while without having it blow up again I will probably sell the short block. If it does pop again I plan on swapping in the forged short block, selling the car and starting over with a bone stock STi. Let's hope it doesn't come to that.

lastly, big thanks to Ryan and Adam at Area1320. Your skills, knowledge and reassurance helped keep me from putting a few mags worth of .45 into this thing a couple weeks ago.

rodder · 05-15-2008, 08:14 PM

Quote:

Originally Posted by Ender81

Was there any damage to the shortblock?

forgot to ask you that Ryan. How does the cylinder wall on #4 look? Any damage?

rodder · 05-15-2008, 08:15 PM

and for the triple post...

check out my new sig!

EDIT: uh, it's not working...

rodder · 05-15-2008, 08:17 PM

maybe now?

oh, and how'd I end up with wrinkle red valve covers?

Renegade_ · 05-15-2008, 08:18 PM

Quote:

Originally Posted by rodder

wow stock STi pistons ****ing own.

Hey, stock STi pistons are the ****. They can hold over 500whp with the right turbo and tune (skully @ rs25 has proven it a bunch of times), just something happened here which caused a nice little bang and ****ed up the ringlands.

Looking good, good to see another STi back on the road thanks to Ryan. How much whp was the meth tune putting down...?

rodder · 05-15-2008, 08:26 PM

Quote:

Originally Posted by Renegade_

Looking good, good to see another STi back on the road thanks to Ryan. How much whp was the meth tune putting down...?

thanks buddy. It put down 432 to the wheels on the meth. 383 on pump.

Gorilla Unit 33 · 05-15-2008, 10:55 PM

is it weird the dana chick doesnt even post anymore? or is it just me?....

Anyways glad to see your finally getting it back together.

05-14-2008, 08:24 PM	#1
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	Rodder's STi aka Danas old car a lot of people have been wondering what has been up with this car so here goes. Andy brought the car to us suspecting of low compression in cyl 4. We did a compression and leak down test and found that #4 was definitely low and most likely had a broken ringland. Andy dropped the car off and we got to work asap. We got the old motor torn down and the brand new stock shortblock built back up in just a days time. I decided to pull the #4 piston out of the old shortblock to see what actually happened as there was zero evidence on top of the piston. here goes :D the red arrows (my sick drawing skills) are cracks. aka broken old shortblock yay new wrinkle red vc's and new motor poor thing __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

05-14-2008, 08:37 PM	#2
lagos Tri-State Post Whore Join Date: Oct 2005 Location: Philadelphia, PA Member #989 My Ride: Toyota Celica GT-Two iTrader: (0)	Nice work. You sure do know your subarus! Wouldn't it have been cheaper to just replace the one ring land then for him to buy a new shortblock? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. The accelerator on my toyota has always been stuck to the floor.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

05-14-2008, 08:57 PM	#6
igo4bmx Tri-State Post Whore Join Date: Jun 2005 Location: Under the bar... Member #592 My Ride: 2009 Audi A3 Quattro, 2008 BMW X5, 2003 WW Evo8, 2000 Turbo SOHC Civic iTrader: (1)	damn did he buy the car with #4 like that? __________________ BOOST doesn't get you laid. Roofies and some creativity does however Tuned by some white dude @ a shopwithbigtrucks.com "You get what you pay for" - thanks captain obvious, unless you bought rotas and received volks.

05-14-2008, 10:24 PM	#9
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	Bill you know I always value your insight Yes he bought the car like this. No we don't know why it happened. 2 guesses. 1- the car was tuned on meth, the tank is empty 2- the tank was filled with anything other than 93 the pump gas tune wasn't aggressive at all. the meth tune on the other hand........ :P and obviously the car will get a retune. He drove it home and pretty much the next day called me up asking for advice as he thought the car was acting strange. For the average person the car drove and moved pretty good, but being I know what the car felt like at peak power I knew something was up. __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by RyanG; 05-14-2008 at 10:26 PM.

05-15-2008, 12:36 AM	#10
OMGz Turbo Tri-State Post Whore Join Date: Dec 2006 Location: Ltown Member #3108 My Ride: 01' WS6..That whistles...01' Explorer 5.slow iTrader: (0)	So was the car done for before the purchase?? Or afterwards? __________________ loading HATERS.....99% ████████████████] NO ONE CARES ABOUT BEING TTT APPROVED

05-14-2008, 08:42 PM	#3
TurboTagTeam Tri-State Post Whore Banned Join Date: Mar 2005 Location: Cell Block F Member #275 My Ride: constantly changes iTrader: (2)	Detonation?

05-15-2008, 08:12 PM	#14
rodder Tri-State Addict Join Date: Feb 2008 Location: Lehigh Valley, PA Member #6807 My Ride: 2005 STi, 1987 S10 iTrader: (0)	wow stock STi pistons **ing own. I'm gonna have the car tuned even more conservatively than the first time this go-round as I couldn't really care less about numbers. I just want a fast, reliable daily driver with smooth power delivery. it was kinda weird as my first inclination after noticing something didn't seem right was to pull the plugs. No sign of det on any of them. I only did the compression test for **s and giggles since I already had the plugs out and sure enough, low #4. My plans for the original short block are probably going to include having the cylinders honed and dropping in a set of forged pistons with new rings. I'll keep it as a back up short block long enough for the new motor to gain my trust. Once I've beat on the car for a little while without having it blow up again I will probably sell the short block. If it does pop again I plan on swapping in the forged short block, selling the car and starting over with a bone stock STi. Let's hope it doesn't come to that. lastly, big thanks to Ryan and Adam at Area1320. Your skills, knowledge and reassurance helped keep me from putting a few mags worth of .45 into this thing a couple weeks ago.

05-15-2008, 08:15 PM	#16
rodder Tri-State Addict Join Date: Feb 2008 Location: Lehigh Valley, PA Member #6807 My Ride: 2005 STi, 1987 S10 iTrader: (0)	and for the triple post... check out my new sig! EDIT: uh, it's not working...

05-15-2008, 10:55 PM	#20
Gorilla Unit 33 TST Ruined My Life! Join Date: Jun 2005 Location: Where do you live? Member #532 My Ride: Fly Mosca II w/pegs LOLZ iTrader: (7)	is it weird the dana chick doesnt even post anymore? or is it just me?.... Anyways glad to see your finally getting it back together. __________________ find me here: gorillaunit33.wordpress.com

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