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Old 09-19-2007, 01:01 AM   #1
n2oiroc
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Default element gt49 on 07 sti!

07 sti, here are the mods.

element gt49 iwg
spearco tmic
aps 70mm with amsoil filter
maddad v2 headers and whisper cat back
perrin turbo inlet
deatchwerks 750 cc top feed injectors
perrin ebcs

all runs were with 93 octane midwest blend with appx 10% ethanol and between 94 and 96 degrees.

green run was with a catted autospeed downpipe.

blue run was switched to a turbo xs catless downpipe and 1 step colder plugs.

red run was exact same as above with torco unleaded race gas concentrate at appx 107 octane according to the chart.

as you can see, the catless downpipe was a huge improvement, not only peak, but all over. above 6,000 rpm it was making 40 whp more!

the torco also made a huge improvement, 40 whp and 50 whp at peak and a lot better throttle response from bottom to the top. i think the torco is a great alternative to meth/water for us that dont trust meth systems. all runs were 22-23 psi tapering to 21-20 psi with the wgdc nearly maxxed out over 90%. i would really like to thank jorge and the guys at p&l for the honest advice and hard work. they dont rest until their work is done. i think you would be hard pressed to find a better shop anywhere.



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Last edited by n2oiroc; 09-19-2007 at 01:31 AM.
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Old 09-19-2007, 01:33 AM   #2
iride5thelements
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Looks pretty nice. I was considering a similar setup. How does idle compare to stock? What size exhuast are you running? What were you tuned on? Accessport? How does spool and throttle response compare to stock?? Would you have made significantly more power with a FMIC or does the spearco do alright?
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Old 09-19-2007, 01:37 AM   #3
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are you going to keep all 3 maps so you can swap to catted exhaust on the street and catless at the strip/track? If so, that's super cool, much props. I plan on doing the same when I upgrade my turbo.
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Old 09-19-2007, 01:50 AM   #4
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Quote:
Originally Posted by iride5thelements View Post
Looks pretty nice. I was considering a similar setup. How does idle compare to stock? What size exhuast are you running? What were you tuned on? Accessport? How does spool and throttle response compare to stock?? Would you have made significantly more power with a FMIC or does the spearco do alright?
idle is the exact same as stock except at cold startup. it wanders a little because the header slip joints leak for the first 45 seconds. after its warm, its flawless. 4" downpipe and 3" cat back. accessport. spool is slower than stage 2 and probably compareable to stock, i did lose some responsiveness, but im used to it so it isnt bad. the spearco was not a restriction at all, i think the iwg was the next cork in line. i still think a 20g is a better pump gas street turbo, you give up 20 hp on top, but you gain a lot on the bottom.
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Old 09-19-2007, 01:52 AM   #5
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Originally Posted by WebMasterP View Post
are you going to keep all 3 maps so you can swap to catted exhaust on the street and catless at the strip/track? If so, that's super cool, much props. I plan on doing the same when I upgrade my turbo.
yep, i dont think ill be swapping downpipes much, but ill keep all 3 maps. i was worried about going catless, but it isnt noticeably louder, it doesnt stink and unless you looked under the car, i doubt you would really notice.
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Old 09-19-2007, 04:55 AM   #6
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so how's your hand?

good numbers, although a bit leaner then i'd run it
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Old 09-19-2007, 05:07 AM   #7
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From 328 to 347 on just a DP and plugs? Cool.

Jorge is amazing.
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Old 09-19-2007, 11:33 AM   #8
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Nice.. seems to hold over 300whp to redline on pump gas, thats good man. Looks like your torque and horsepower nearly peak at the same number although its hard to read.. looks alot different then most of those 350wtq/300whp graphs i see with stock turbos etc.
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Old 09-19-2007, 12:10 PM   #9
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That's awesome on the Torco.. Maybe Jorge can chime in, but I'm curious how hard he was able to push the Torco unleaded..
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Old 09-19-2007, 12:47 PM   #10
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Holding power to redline is all about tuning AVCS.
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Old 09-19-2007, 12:58 PM   #11
WebMasterP
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Quote:
Originally Posted by n2oiroc View Post
yep, i dont think ill be swapping downpipes much, but ill keep all 3 maps. i was worried about going catless, but it isnt noticeably louder, it doesnt stink and unless you looked under the car, i doubt you would really notice.
oh, I wasn't worried about that stuff. I just think I should do my part to stop acid rain and ozone depletion
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Old 09-19-2007, 01:08 PM   #12
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Quote:
Originally Posted by blkscooby View Post
Holding power to redline is all about tuning AVCS.
details plZ
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Old 09-19-2007, 03:50 PM   #13
n2oiroc
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Quote:
Originally Posted by HndaTch627 View Post
so how's your hand?

good numbers, although a bit leaner then i'd run it
hand is good, no pain, but it looks ugly. im not worried about it being lean, the plugs looked great when i swapped them and he tried a run .5 leaner and it didnt make any difference so he richened it back up a touch.
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Old 09-19-2007, 03:51 PM   #14
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Originally Posted by XX_Chris View Post
That's awesome on the Torco.. Maybe Jorge can chime in, but I'm curious how hard he was able to push the Torco unleaded..
he fired off a list of what he all changed with the torco, it was something like 10 things, some of which i never heard of. and the torco map is awesome, it revs like mad and pulls extremely hard and smooth. only downside is that the inside of my exhaust tip is orange.

Last edited by n2oiroc; 09-19-2007 at 04:32 PM.
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Old 09-19-2007, 04:29 PM   #15
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Quote:
Originally Posted by n2oiroc View Post
he fired of what he all changed with the torco, it was something like 10 things, some of which i never heard of. and the torco map is awesome, it revs like mad and pulls extremely hard and smooth. only downside is that the inside of my exhaust tip is orange.
Wait til you see the inside of your exhaust.... I used to used the stuff regularly... like, every tank of gas. I only used about 8oz., which was enough to be able to run the cobb 93 octane maps with the IAM at 16 on crappy CA 91 octane. It's good stuff and definitely works!
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Old 09-19-2007, 04:31 PM   #16
n2oiroc
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Originally Posted by remowgn View Post
Wait til you see the inside of your exhaust.... I used to used the stuff regularly... like, every tank of gas. I only used about 8oz., which was enough to be able to run the cobb 93 octane maps with the IAM at 16 on crappy CA 91 octane. It's good stuff and definitely works!
i only ran a 1/4 tank worth at a heavy concentration! i imagine running it daily in larger doses than what you were running would be tough on plugs and o2 sensors.
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Old 09-19-2007, 05:20 PM   #17
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Looks like fun!
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Old 09-19-2007, 05:37 PM   #18
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yeah 07's
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Old 09-19-2007, 05:40 PM   #19
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Nice numbers. I cant wait till I get a race gas tune.
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Old 09-19-2007, 06:22 PM   #20
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Quote:
Originally Posted by n2oiroc View Post
i only ran a 1/4 tank worth at a heavy concentration! i imagine running it daily in larger doses than what you were running would be tough on plugs and o2 sensors.
My front O2 sensor died at 74k miles... i'm not sure if that's reasonable, but it's been a while since I've used the torco regularly. One of my friends still uses it damn near every tank of gas in his 1.8T... and it killed his cat* after about six months.




* catalytic converter
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Old 09-19-2007, 06:31 PM   #21
n2oiroc
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Originally Posted by remowgn View Post
My front O2 sensor died at 74k miles... i'm not sure if that's reasonable, but it's been a while since I've used the torco regularly. One of my friends still uses it damn near every tank of gas in his 1.8T... and it killed his cat* after about six months.




* catalytic converter
im realistic about the life expectancy of my car now. if i get 50k out of my shortblock and o2 sensors, ill be ok with it. hopefully the clutch goes 30k, but i doubt it.
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Old 09-19-2007, 06:37 PM   #22
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Congratulations that looks much better. Those catted DPs really kill the power at this level. If using a cat go with one in the midpipe location instead.

Thanks,
Phil
www.elementtuning.com
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Old 09-19-2007, 06:45 PM   #23
n2oiroc
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Congratulations that looks much better. Those catted DPs really kill the power at this level. If using a cat go with one in the midpipe location instead.

Thanks,
Phil
www.elementtuning.com
yeah, it feels a lot more like it should now. thanks!
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Old 09-27-2007, 09:43 PM   #24
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Quote:
Originally Posted by blkscooby View Post
Holding power to redline is all about tuning AVCS.
That makes no sense. Please explain.
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Old 09-28-2007, 12:38 PM   #25
jaxscuby
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i got my bag of popcorn and a comfortable chair ready..
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