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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 2:58 pm 
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Turbo_Mike wrote:
Holy crap dude... I'm sorry for you, keep your head up...

I dont know if you were still around for my posts in your thread in built motor discussion, but I'm going through the same deal with my car right now too.....


I can't even login to Nasioc, so I don't bother. Lurking there just makes me depressed. I at least wanted to be able to post in the 2.5L forum and the built motor forum. I have never had a problem in those areas of Nasioc.

Thanks for the support. ;)

Gabe

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:01 pm 
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Man, its like a soap opera. :shock:

Tuners can do what they want. I just presented what I've found on the ECU side of things and what you later proved by logging. That is, that zeroing out A/B will avoid any surprises when it comes to additional timing. Of course, a tuner could maybe figure out when A/B comes into play and tune for it. I don't want to spend time messing with it in IDA as it looks like a PITA (there are four separate multipliers just for table A).


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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:13 pm 
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Yeah, I really like this forum a lot better than nasoic. I'm glad it's back up.

OT: I read that Tim Bailey blew an 08 STi motor. He said that there was a previously unknown DA advance table that came into play under certain conditions and it added a LOT of timing. Since, it wasn't expected, the engine went boom. This is not saying anything negative about Tim since he posted this information himself. Just stating that tuners really need to know when these DA tables come into play.


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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:16 pm 
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merchgod wrote:
Man, its like a soap opera. :shock:

Tuners can do what they want. I just presented what I've found on the ECU side of things and what you later proved by logging. That is, that zeroing out A/B will avoid any surprises when it comes to additional timing. Of course, a tuner could maybe figure out when A/B comes into play and tune for it. I don't want to spend time messing with it in IDA as it looks like a PITA (there are four separate multipliers just for table A).


Two of the top tuners in the country are zeroing those tables. This is simply FUD incited by Cobb/SOA and some other top protuners to discredit what we helped Cobb find. Jorge at P&L is one of the most respected tuners in the country and makes the most powerful and reliable tunes out there. Chris at XXtuning is also very good. I am sorry it is a soap opera. I did not want it to turn out that way, but I understand why it is happening. If so and so tuner can convice the users that the free 07 STI maps and the XPT maps are tuned incorrecty and mayeb your car might blow up because of it, they get more business. It is pure FUD.

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:18 pm 
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mickeyd2005 wrote:
Yeah, I really like this forum a lot better than nasoic. I'm glad it's back up.

OT: I read that Tim Bailey blew an 08 STi motor. He said that there was a previously unknown DA advance table that came into play under certain conditions and it added a LOT of timing. Since, it wasn't expected, the engine went boom. This is not saying anything negative about Tim since he posted this information himself. Just stating that tuners really need to know when these DA tables come into play.


Ok so they have 07 STI like timing logic still or some hybrid. I bet Bill is itching to get his hands on the 08 STI ROM. hopefully colby can get us one soon.

Gabe

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:23 pm 
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I have an AAAB block. #4 had 2 hairline cracks in the ringland, but it was still good. The B piston is #4 and is the strongest one. It seems that the ROMS with the extra advance on #4 have this type of block mainly.

Image

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:30 pm 
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Hey Gabe, I'll just breifly reiterate what i PM'd you here.

You being banned from NASIOC is exactly why i dont venture outside of the MAIC. The rest of that board is full of asshats. Thanks for everything you've done for the 07 crew.

Oh, and i LOVE the RomRaider icon. Pirates ftw.


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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:33 pm 
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Well I will be mainly on here for the foreseeable future. Maybe I can get some coding done finally. ;)

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 3:58 pm 
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My block is an AB AB block. I was running zero'ed timing compensation and GTspec headers, and sure enough, #4 broke, #2 had 2 hairline cracks, and #1 the rings spun. Whats impressive is even with a light flywheel and light pulley, the ECU caught all 3 on the money. And I'm running the 02 rom, which is known for the phantom misfire codes anyway. I first got misfire on 4, then 4 and 2, and finally 1,2,and 4 is when I decided to pull the motor, because I figured it was going downhill fast from that point. Luckily for me, its not that bad yet, so it looks like I wont have to sleeve it. None of my pistons show detonation or hot spots, none of my rings are broken, and my bearings look brand new.....

My #4 ring land looks exactly like your #3

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 4:11 pm 
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Well B is the tougher one, so it is odd that it broke (well not really, IIRC the older WRXs had fuel starvation issues to #4). My first motor with the bad injector just ripped the crown off the piston and all of the ringlands on 4, scoring the living hell out of the wall. I saw it and was like: :shock:

I should have brought my camera at the time.

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 4:28 pm 
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gabe: i know it's too late to matter, but normally when we see ring lands cracked like that it's from piston overspeed(mis-shifting). To me it sounds like subaru may have underestimated the strength of their new pistons and the loads that would be exerted on them at speed. This also may be why SOA has discontinued production of oversized pistons for the 2.5L blocks. Once again it seems as though subaru is trying to dodge their problems by passing them off on the end user.


Oh...and TXIC needs to burn, hell even the midwest which used to be a huge group of friends is nothing but a pissing contest between 3 shops now.

oh...as far as Al goes, please don't get me started.

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 4:49 pm 
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The only thing that might have killed it off finally was the powershifting I was doing. I did have a 50% throttle cut and 7200 RPM redline. In any cse, I am bout to order the pistons. CP has not given me a good answer on which ones I need. I need one (for the B bore) that is smaller than the bigger ones (the A bores). I would think this is uniform information and I would not have to Mic out the bores. I will send CP another note on it. This was their response:

Quote:
From: Mike Lozano [mailto:mlozano@cppistons.com]
Sent: Thursday, February 21, 2008 9:13 AM
To: Widmer,Gabe
Subject: RE: Piston set for 07 STI EJ25 AAAB block.

Hello Gabe,

We do make and carry both std. bore & +.5mm bore Subaru STI pistons on the shelf. You can purchase them through almost any CP vendor through out the country. Please let me know where you are located and I can then direct you to a CP dealer.

Mike @CP Pistons LLC

From: Darius Tarman
Sent: Wednesday, February 20, 2008 1:51 PM
To: Mike Lozano
Subject: FW: Piston set for 07 STI EJ25 AAAB block.







Sincerely,



Darius Tarman

Sport Compact Sales/Tech Support



CP Pistons

1902 McGaw Ave.

Irvine, CA 92614

USA

Phone: 949.567.9000

Fax: 949.567.9010

Email: dtarman@cppistons.com

http://www.cppistons.com



A member of Pankl Racing Systems



The contents of this email are intended for the named addressee only. It contains information which may be confidential and which may also be privileged. Unless you are the named addressee (or authorized to receive for the addressee) you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it.

Information about Pankl Racing Systems is available from http://www.pankl.com. This footnote also confirms that this email message has been swept for the presence of computer viruses.





From: Widmer,Gabe [mailto:gwidmer@myworkemailoops]
Sent: Wednesday, February 20, 2008 7:08 AM
To: Darius Tarman
Subject: Piston set for 07 STI EJ25 AAAB block.



Hi,

I have had several people give me advice on what to do about my motor. A ringland cracked on #3 on my 07 STI, but the bores are all fine, no scarring, the factory cross hatching is still in place. Motor has about 10k on it. I have been told to avoid any irregularities (piston slap, bobble-heading, etc) that I should Mic the bores and send the information to you for a custom set. Is this necessary or do you have pistons ready to drop in that will not piston slap for that block? I plan on simply honing the bores to get the rings to re-seat. Although my rod bearings show no wear, I am replacing the bottom end bearings with new OEM units. I have not cracked open the block, but I have removed 2 rods and 3 pistons. (all the passenger side pistons and #4 on the driver's side).

Thanks,

Gabe Widmer
gabrielwidmer@yahoo.com

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 5:06 pm 
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Well I sent this to him:

Quote:
Thanks Mike,

I am in Austin Texas. I can buy them through a vendor here, but my real question is about piston slap. My bores are fine and I only want to hone them a tad. My Subaru engine has different sized bores and pistons. I can see the markings on the bottom of each piston and one of them is different (the one that goes into #4, but I cannot remember the number that is stamped on each, it is like 2 or 3). I have not mic-ed them out, but they are different sizes. I am a bit confused as I know I need 3 pistons of the stock "A" bore size and one of the stock "B" bore size, but I do not know which OTS piston that is. I do know that the "B" bores are smaller. .5MM is a huge difference and looking at your part #'s confuses me a bit.

Am I correct in saying that the A bores are the 100mm (SC7421 piston) bores and the B bores are the 99.5MM bores (SC7420)?

Thanks,

Gabe W

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 5:09 pm 
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HndaTch627 wrote:
gabe: i know it's too late to matter, but normally when we see ring lands cracked like that it's from piston overspeed(mis-shifting). To me it sounds like subaru may have underestimated the strength of their new pistons and the loads that would be exerted on them at speed. This also may be why SOA has discontinued production of oversized pistons for the 2.5L blocks. Once again it seems as though subaru is trying to dodge their problems by passing them off on the end user.


Oh...and TXIC needs to burn, hell even the midwest which used to be a huge group of friends is nothing but a pissing contest between 3 shops now.

oh...as far as Al goes, please don't get me started.


Wait, so Subaru is only making BBBB blocks now? :evil:

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 Post subject: Re: gabedude banned at NASIOC
PostPosted: Thu Feb 21, 2008 5:21 pm 
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Wow. Just wow. I rarely venture out of the NASIOC Technical forums, but even just a quick search through the TXIC forums made it quite evident how much favoritism and sexism are rampant.

Gabe -- I think many many "home tuners" just like yourself understand exactly what happened here.

One positive to this situation is, thanks to Bill's great posts in the "07 STI down in compression" thread, any relatively technical NASIOC member who would like to look at all the facts regarding the 07 STI will be able to make an informed decision regarding tuning.

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