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Old 08-05-2012, 12:49 AM   #1876
dexterous
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Then again, having gone through so much crap it seems that I am always expecting problems
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Old 08-05-2012, 12:53 AM   #1877
rexblake
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I feel your pain dex. I finally just sold mine. It's not fun to drive when your just waiting for the next catastrophe. Way to stressful. The 5th engine was my limit.
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Old 08-05-2012, 12:55 AM   #1878
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I can't find it for some reason... are you running the fp hta 86? If so do you like it?
I am running the standard twin scroll 35 and I think I'm maxed on my efficiency if I want to break 600whp I am going to half to take it to forced performance and have it converted
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Old 08-05-2012, 01:07 AM   #1879
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Dex i think u are just worrying to much. Its great that u pay so much attention to detail but man. Some times u just need to relax. No disrespect intended. It appears to me as if ur looking for something wrong. Stop looking and just enjoy.
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Old 08-05-2012, 07:45 AM   #1880
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Quote:
Originally Posted by bboylocob
Dex i think u are just worrying to much. Its great that u pay so much attention to detail but man. Some times u just need to relax. No disrespect intended. It appears to me as if ur looking for something wrong. Stop looking and just enjoy.
Do you know him cause you just explained him to a t
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Old 08-05-2012, 09:25 AM   #1881
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Quote:
Originally Posted by explicithero

Do you know him cause you just explained him to a t
Not personally but daym i been following this thread since page 1. And have the same motor and wanted to see how it went to see if i wanted to follow suite. Then when all the trouble hit i was like daym. But now i realize he is like my dad. Lol no offence
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Old 08-05-2012, 11:46 AM   #1882
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I am the same as dex. Too much money and effort to not worry about every little thing. Imagine if he didn't notice the rich plugs...
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Old 08-05-2012, 11:50 AM   #1883
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Quote:
Originally Posted by dexterous
The thing that sucks about modded cars is the worry that something is either wrong or going wrong. I noticed this strange noise the other day when I tap the throttle or when the ECU applies additional throttle angle (such as when the AC kicks on or the power steering is moved while sitting still). I also noticed that my turbo' s rotating mass appears to be slightly harder to move by hand than I remember. Its super hard to tell by looking at it but there also appears to be a slight amount of run-out on the compressor. If there's enough run-out that its visible with the naked eye then the turbo is cooked. I have no idea how that could be possible since it was just serviced and I know its getting oil.

It never ends, it really just never ends...
i have a vf52 with 100 miles on it with the shaft snapped in half that tells me things happen, regardless of the mod level of the car (it was off of a bone stock car of course). Also, remember when dude's brand new sti and lgt motors were rod knocking at 2000 miles? Even multiple engineers with unlimited resources and hours invested can't get some of this stuff right...so give yourself a break!
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Old 08-05-2012, 11:51 AM   #1884
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I understand, but it's a 500whp subaru. It's gonna make weird noises
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Old 08-05-2012, 11:52 AM   #1885
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Quote:
Originally Posted by maxpowr
I am the same as dex. Too much money and effort to not worry about every little thing. Imagine if he didn't notice the rich plugs...
Im the same in some ways. There are some things that need attention. But quest for perfection is unreachable. There will always be something.
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Old 08-05-2012, 11:55 AM   #1886
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Quote:
Originally Posted by maxpowr View Post
Imagine if he didn't notice the rich plugs...
oh well now you've done it.
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Old 08-05-2012, 01:19 PM   #1887
maxpowr
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I probably worry too much also. I am also finding myself worrying more than enjoying.
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Old 08-05-2012, 01:40 PM   #1888
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Quote:
Originally Posted by dexterous View Post
The thing that sucks about modded cars is the worry that something is either wrong or going wrong. I noticed this strange noise the other day when I tap the throttle or when the ECU applies additional throttle angle (such as when the AC kicks on or the power steering is moved while sitting still). I also noticed that my turbo' s rotating mass appears to be slightly harder to move by hand than I remember. Its super hard to tell by looking at it but there also appears to be a slight amount of run-out on the compressor. If there's enough run-out that its visible with the naked eye then the turbo is cooked. I have no idea how that could be possible since it was just serviced and I know its getting oil.

It never ends, it really just never ends...

I totaly feel your pain on this one. You invenst a boatload into engine/build and then paranoa sets in. I thought the same thing with the turbo in our low mount project the first time we broke it down. It had endplay AND runout, enough to feel by hand and I was thinking it was toast. Sent to Garrett and it came back that is was perfectly fine, maybe yours is too? There is definitely a cold clearnace to allow thermal expansion and I think that was all I was noticing, just moreso after breaking it down and always assuming the worst.

I have a similar sound when tipping into throttle. No adverse effects, not boost related just a funky subtle sound. More like en electronic buzzer or honk sound that's only heard tipping into the throttle, about half the time, from a low speed or stop. I've assumed it has to do with the rate of the throttle plate opening from the closed (or nearly closed) position. Strange!

So your not alone in your paranoid thinking of the worst. As an engineer, thinking all these scenarios makes us better at what we do. The unfortunate downside, is after doing this for many years as a career it starts to creep into our personal lives with the things that we love, and we let it get the better of us instead of letting things be as they may.
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Old 08-05-2012, 03:07 PM   #1889
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Quote:
Originally Posted by KillerBMotorsport View Post
I have a similar sound when tipping into throttle. No adverse effects, not boost related just a funky subtle sound. More like en electronic buzzer or honk sound that's only heard tipping into the throttle, about half the time, from a low speed or stop. I've assumed it has to do with the rate of the throttle plate opening from the closed (or nearly closed) position. Strange!
That's the sound injectors make when they batch fire to wet the intake manifold walls during tip-in enrichment.
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Old 08-05-2012, 10:47 PM   #1890
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batch fire? It started making the sound after the second breakdown with a few minor tweaks including a 3bar map. Nothing changed with the injector or fueling. Hmmmm
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Old 08-06-2012, 01:37 AM   #1891
dexterous
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I first noticed "the sound" coming from my car on tip-in sometime Wednesday. For all I know it was there the entire time but thats when I first noticed it. I did flash a map with some significant changes just prior to noticing the change. I was actually on my way to meet with the tuner so that he could take a look at my idle. He had no idea what the noise was but didn't seem to concerned.

Once thing I can tell you for sure is that the turbo runs like a champion! It is one hell of a big A$$ turbo yet it spools instantly so it cant be that bad (can it?).
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Old 08-06-2012, 01:45 AM   #1892
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And since we're discussing what the Stock ECU is capable of, here's an 08 STI tuned on Open Source SD.

RomRaider - http://www.romraider.com/forum/viewt...hp?f=37&t=8143
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Old 08-06-2012, 01:59 AM   #1893
dexterous
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I hope my map is shifted at least 1000 RPMs if not 1500 RPMs to the left... My stock location Dom3 XTR provided me with 390ft/lbs at 4000 RPM which felt amazing. Its unlikely from the simple standpoint of size that this turbo will do the same but I hope for at least 350.

Either way, I am impressed with the development that that stock ECU has seen in the past few years.
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Old 08-06-2012, 02:06 AM   #1894
dexterous
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In other news, I had the opportunity to check out a car with a motor with nearly identical specs to my Element Pro Comp and I was pretty amazed to hear how loud it was at idle. It made a very harsh metallic noise as it ran that I can only assume comes from the heads. My Pro Comp motor sounds basically stock which is pretty impressive if you think about it.
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Old 08-08-2012, 09:47 PM   #1895
dexterous
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A quick update, I finally got a new fuel pump controller worked out. I purchased a nice Honeywell pressure sensor thats designed for high temp applications from LSX Tune.com. I forgot to take a pict of the sensor prior to installing it but if you look on the counter to the right of Abby (she likes TGVs) you can see it sitting there.








I added a 90 degree 1/8 NPT fitting, a hose barb and a cushion clamp left over from my fuel system to the mix and I am very pleased with the results.





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Old 08-08-2012, 09:50 PM   #1896
dexterous
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In other news, I am getting the car tuned on Friday! I am taking the car over to the local Mustang dyno at J&S Dyno for a quick session with Nate from TPG (the local tuner in Pittsburgh). The tune will not really be for power, its just to get the car dialed in on pump gas at wastegate boost (18psi). We want to be 100% sure that its behaving as well as get the 93oct map finalized so that the car is 100% functional. From there I plan on driving it until it has around 2000 miles on it (two more tanks of gas) and making a decision about where to go next. If all goes well I will be swapping over to E85, synthetic oil, etc at the 2000 mile mark. From there its anybody's guess as to what happens but as of now I just want to be done with this project so that I can enjoy the car. If I can get one track day out of this season I will be very happy.

Last edited by dexterous; 08-08-2012 at 10:18 PM.
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Old 08-08-2012, 10:24 PM   #1897
dexterous
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I also installed an Innovative LC-1 and WB O2 gauge over the weekend. Here's the gauge running through its initialization (the car is not running so its not at 7.4:1, LOL):




I welded another bung into my down pipe right next to the stock one:



Here's where the controller is:


Here are the serial input/output cables:

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Old 08-08-2012, 10:30 PM   #1898
RUCERUS
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Quote:
Originally Posted by dexterous
In other news, I am getting the car tuned on Friday! I am taking the car over to the local Mustang dyno at J&S Dyno for a quick session with Nate from TPG (the local tuner in Pittsburgh). The tune will not really be for power, its just to get the car dialed in on pump gas at wastegate boost (18psi). We want to be 100% sure that its behaving as well as get the 93oct map finalized so that the car is 100% functional. From there I plan on driving it until it has around 2000 miles on it (two more tanks of gas) and making a decision about where to go next. If all goes well I will be swapping over to E85, synthetic oil, etc at the 2000 mile mark. From there its anybody's guess as to what happens but as of now I just want to be done with this project so that I can enjoy the car. If I can get one track day out of this season I will be very happy.
What do you consider one track day. Autocross or actually tracking the car. And if your tracking where would you be taking it to, i would be interested in going.
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Old 08-09-2012, 12:22 AM   #1899
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LOL, I dont parking lot race. I live very close to PIRC (formerly known as Beaverun) which I frequently go to. They are under new ownership this year so I have no idea whats been changed and what's still the same there. They have a track day on Sept. 29t and another on Oct 27th. I have done that last Sat in October track day a few times and its always been pretty interesting or at least as interesting as ran/sleet/snow and slicks can be.
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Old 08-09-2012, 02:16 PM   #1900
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So, your not a hard parker,lol. I would be interested in going in Sept because Oct i will be working. They also have one the end of Aug but i don't believe i will be able to go because of a surgery i have the 27th and they said it would probably be 3-4 days before i could drive. I know exactly where pirc is i have been there twice this year. Had a blast everytime. Last time was a little hot with track temps reaching close to 110. Could only get about 6-8 hard laps in before needed to cool down.
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