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Old 10-03-2012, 12:11 AM   #1
subaruBnoobie
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2004 WRX Wagon
Silver

Default My car seems faster on the 2nd pull..

04 WRX Wagon
-3" TBE
-K&N Typhoon CAI
-FMIC
-Walbro 255
The car was purchased with these parts on it.. It was Pro-Tuned by BYT Turbo (Sea Level) to 18psi and then drivin to denver (Mile High), timing belt skipped on last owner, I bought the car, Got the Heads rebuilt, and now I drive it. It runs great and feels quick, but if I do a pull and then a minute later do another pull, the 2nd pull feels much quicker. Is it just me "trippin" or could the ECM be correcting something or learning everytime? FYI: I put an AEM Wideband/Boost Failsafe guage in to monitor everything and under WOT it runs in Stoich or just a tad rich (Not sure of the #s at the moment). It hits 15psi and drops off to 12psi by redline. I havnt had it re-tuned yet, it is still on the old tune.

The car pulled a stock 05 STI multiple times by about a car and a friends Stage 2 STI Puts about 2 cars on it. (All done on a closed Road by NON-Professional drivers)

Thanks!
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Old 10-03-2012, 01:29 PM   #2
tebriel
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You need to log it for sure.

It's running 14.7 at WOT? That's a recipe for disaster.
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Old 10-03-2012, 01:32 PM   #3
03sportwagon
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I would retune. Big difference from sea level.
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Old 10-03-2012, 01:35 PM   #4
Dr. octagon
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Quote:
Originally Posted by subaruBnoobie View Post
04 WRX Wagon
-3" TBE
-K&N Typhoon CAI
-FMIC
-Walbro 255
The car was purchased with these parts on it.. It was Pro-Tuned by BYT Turbo (Sea Level) to 18psi and then drivin to denver (Mile High), timing belt skipped on last owner, I bought the car, Got the Heads rebuilt, and now I drive it. It runs great and feels quick, but if I do a pull and then a minute later do another pull, the 2nd pull feels much quicker. Is it just me "trippin" or could the ECM be correcting something or learning everytime? FYI: I put an AEM Wideband/Boost Failsafe guage in to monitor everything and under WOT it runs in Stoich or just a tad rich (Not sure of the #s at the moment). It hits 15psi and drops off to 12psi by redline. I havnt had it re-tuned yet, it is still on the old tune.

The car pulled a stock 05 STI multiple times by about a car and a friends Stage 2 STI Puts about 2 cars on it. (All done on a closed Road by NON-Professional drivers)

Thanks!

You need to be sure
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Old 10-03-2012, 04:11 PM   #5
subaruBnoobie
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Im going to retune ASAP. Ill update with how she does.
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Old 10-05-2012, 04:27 AM   #6
zashoe
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it's funny, I was looking at this exact wagon from a broker in Hagerstown, MD a few months ago I believe. I backed off when they couldn't tell me anything about the tune/boost/any of the mods. as far as the difference in feel, your butt dyno could need to be calibrated, or it could be the tune causing learning and correction. I'd go for a protune up in the Rockies. the air is much less dense that high above sea level. probably causing you to run rich.
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Old 10-05-2012, 08:25 AM   #7
Uncle Scotty
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the second pull the exhaust is hot already.....jesus...is this hard to figure out??

its been this way for.....mmmmmm.....ever
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Old 10-05-2012, 10:10 AM   #8
zashoe
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doesn't cooler air give more power since colder air is more dense? isn't that the purpose of an intake? thanks for the info!
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Old 10-08-2012, 10:35 PM   #9
subaruBnoobie
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Quote:
Originally Posted by zashoe View Post
it's funny, I was looking at this exact wagon from a broker in Hagerstown, MD a few months ago I believe. I backed off when they couldn't tell me anything about the tune/boost/any of the mods. as far as the difference in feel, your butt dyno could need to be calibrated, or it could be the tune causing learning and correction. I'd go for a protune up in the Rockies. the air is much less dense that high above sea level. probably causing you to run rich.

Yep, same car... I actually found the guy that had the car and traded it into the dealership. It was tuned by Nick at Backyard Turbo on 18lbs. Be glad you didnt buy it from them.. A lady bought it from them (Access Auto Brokers) in MD and then drove it Here to denver. The car skipped timing as soon as she got here and then sold it to me as is. That, and there are title issues causing me to have to bond for a new title on it.. Its working out for my advantage because of the super low price I paid for it but definately a hassle.
Anyways back on the subject:

The wideband is reading between 13.5 - 14.1 during normal driving, and under WOT up to redline it is at 10.1-10.8.
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Old 10-08-2012, 10:54 PM   #10
tebriel
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ok, a tiny bit rich but that generally sounds fine.
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Old 10-08-2012, 11:11 PM   #11
zashoe
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World Rally Blue

Default

wow. at least you got a good deal. they admitted that it was on its 3rd clutch and that's when I was finally 100% sure I didn't want it. it was rough to back off cause they were only asking like $6400 and that was an awesome deal. sucks that it jumped timing as from my understanding that can be anything from minor to complete pita. I found it on BYT after i said no. it belonged to some guy named Sal I think. it's crazy how it went from right down the street all the way to Denver!
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Old 10-09-2012, 04:42 PM   #12
kellygnsd
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Quote:
Originally Posted by subaruBnoobie View Post
Yep, same car... I actually found the guy that had the car and traded it into the dealership. It was tuned by Nick at Backyard Turbo on 18lbs. Be glad you didnt buy it from them.. A lady bought it from them (Access Auto Brokers) in MD and then drove it Here to denver. The car skipped timing as soon as she got here and then sold it to me as is. That, and there are title issues causing me to have to bond for a new title on it.. Its working out for my advantage because of the super low price I paid for it but definately a hassle.
Anyways back on the subject:

The wideband is reading between 13.5 - 14.1 during normal driving, and under WOT up to redline it is at 10.1-10.8.
Do you know what stoich or stoichiometric mean?
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Old 10-09-2012, 09:51 PM   #13
subaruBnoobie
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2004 WRX Wagon
Silver

Default

Quote:
Originally Posted by zashoe View Post
wow. at least you got a good deal. they admitted that it was on its 3rd clutch and that's when I was finally 100% sure I didn't want it. it was rough to back off cause they were only asking like $6400 and that was an awesome deal. sucks that it jumped timing as from my understanding that can be anything from minor to complete pita. I found it on BYT after i said no. it belonged to some guy named Sal I think. it's crazy how it went from right down the street all the way to Denver!
Yeah I put a new Exedy stg1 H.D. in it just to be safe. It was owned by a guy named Nic in PA. He traded it into Apple Acura Subaru for a new WRX and Apple sold it off to Access Auto brokers.




I guess I dont know what "stoich" means... Fill me in.
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Old 10-09-2012, 10:26 PM   #14
CanadianImprezaSTi
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Quote:
Originally Posted by subaruBnoobie View Post
Yeah I put a new Exedy stg1 H.D. in it just to be safe. It was owned by a guy named Nic in PA. He traded it into Apple Acura Subaru for a new WRX and Apple sold it off to Access Auto brokers.




I guess I dont know what "stoich" means... Fill me in.
Stoich is the optimum ratio of air vs fuel for burning. 14.7 is stoich for gasoline.

Here is an article explaining it all if your interested:

For many reasons you do not want to be running stoich at WOT, and we're all glad your car is not.

Joel
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Old 10-10-2012, 11:39 AM   #15
tjdonovan
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black blue pearl

Default had clutch problem now fixed by just driving, now possible boost leak

Quote:
Originally Posted by zashoe View Post
wow. at least you got a good deal. they admitted that it was on its 3rd clutch and that's when I was finally 100% sure I didn't want it. it was rough to back off cause they were only asking like $6400 and that was an awesome deal. sucks that it jumped timing as from my understanding that can be anything from minor to complete pita. I found it on BYT after i said no. it belonged to some guy named Sal I think. it's crazy how it went from right down the street all the way to Denver!
i found my wrx after my mazda was totalled out got it from a dealer with minor ac problems that 85 extra dollars fixed they wanted 13k forit i got it for 9k cash had 84k on it ive driven the dog out of it with everything still from the factory no tune up nothing completely stock never had a clutch put in it although it chattered horribly in first when it is first started and driven in the mornings i went to the track and dropped the clutch at 6k rpm and spun tires for about 3 seconds ever since then ther has been no chatter and the clutch is smoother than the day i bought it. has 107k on it now had it 8 months. for some reason now though it seems to have a stall in power in 5th gear like its losing boost then getting it back again it does it twice between 70 and 140 if i go into 5th at 70 but i dont use 5th going that fast until about 110 or so
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Old 10-10-2012, 02:24 PM   #16
tebriel
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2004 WRB WRXes
Sedan and Wagon

Default

wow holy ****, find the punctuation buttons!
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Old 10-12-2012, 10:45 PM   #17
tjdonovan
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my bad
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Old 10-12-2012, 11:58 PM   #18
Jirv311
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Silver

Default

And if I were you, I'd drop the clutch at 6k a few more times. Maybe that way you can just put the car out of its misery. Seriously, you're gonna tell us you abuse your car and then ask why its losing power? Come on maaaaaan!
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