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Old 12-13-2009, 11:55 AM   #1
wrxroberts
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BeyondReflections.com

Default Stage 2 Protuned 05 Sti

So I went to get a re-tune yesterday and I ended up with some pretty decent numbers for low boost. I told them just to do a safe tune on lower boost with it getting colder and everything. I put my original dyno plot from my original tune at the bottom of this post so you can see the difference. I think the fmic helped with holding top end power a lil better. Also you can see the dip in my re-tune plot where my wastgate was acting up a lil. You cant really feel it at all when driving.

Facility: AMS of Gaithersburg MD
Type of Dyno: DYNOmite?
Baseline # for a stocker at the dyno: ??
Boost: 16 psi
Fuel: 93 octane(Shell)
Target AFR: 11.78
SAE Corrections:
Peak HP at RPM: 324.6@5500
Peak Torque at RPM: 347.4@3800
Mods:
-Invidia N1 Race Exhaust
-Invidia V2 Bellmouth Catless Dp
-K&n Short Ram Intake
-Hallman MBC
-Walbro 255
-CSS Fmic
-Ngk One Step Colder Plugs


My old tune with just the Tbe, mbc and intake at around 21 psi.
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Last edited by wrxroberts; 12-13-2009 at 12:31 PM.
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Old 12-13-2009, 12:13 PM   #2
Dubstar112
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used to be 07 wrx 6speed

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Whats up with the wastegate? is it leaking or sticking? Either of those issues seem to cancel out some reliability factor.

Aside from day to day variances, Im also not seeing how 21 psi yeilds 318 hp, and a conservative 16 yeilds 324??!? Can a front mount intercooler realy do that kind of magic?

Im not attacking you but Im pointing out what makes it hard to see just how conservative you really are.

I think you'd really be impressed with the added noise and control gained by a EWG. Throw a 44mm on that setup!

Last edited by Dubstar112; 12-13-2009 at 12:18 PM.
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Old 12-13-2009, 12:28 PM   #3
wrxroberts
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To be honest im not the smartest person with cars and my tuner did explain what was going on with the wastgate but I honestly forget. He basically told me I should run an ewg but if im upgrading the turbo soon and going ewg then its not much to worry about. I just wanted a tune to run a lil safer in winter. I also had a different tuner for the re-tune so that might have a factor as to why the curves are quite different but who knows. It pulls much harder at the top of rpms and im shootin for low-mid 12's next time i go to the track.
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Old 12-13-2009, 12:44 PM   #4
BlackEyeII
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Default just drive it

stop there on power mods and enjoy.....
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Old 12-13-2009, 12:50 PM   #5
wrxroberts
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Quote:
Originally Posted by BlackEyeII View Post
stop there on power mods and enjoy.....
I plan on it. This is plenty enough for me for awhile till i can afford a stage 3 set up.
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Old 12-13-2009, 12:57 PM   #6
BlackEyeII
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Default stage 3/4 don't make it any more "fun"

I would just work on dialing in the suspension. Stage3/4 don't really make it any more "fun".

Anyone who argues that is probably a vender/tuner/trust fund baby or someone who in some way benifits from the modified parts market.
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Old 12-13-2009, 01:05 PM   #7
wrxroberts
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yeah I plan on getting into some road course racing in spring so my current tune should be fine with that. I will eventually do an upgraded turbo since more power can be more fun in some ways imo.
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Old 12-13-2009, 01:13 PM   #8
4ST-AIR
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Quote:
Originally Posted by BlackEyeII View Post
I would just work on dialing in the suspension. Stage3/4 don't really make it any more "fun".

Anyone who argues that is probably a vender/tuner/trust fund baby or someone who in some way benifits from the modified parts market.
I wont argue but there sure is something of a rush when you can break all 4 loose when FFS from 2nd to 3rd at 50mph

I agree just enjoy it, there are many times I wish I would have just been satisfied and left my car be. More power is always a good time but **** just plain breaks after awhile on high HP, and driving when my STI Stage 2 was some of the best times I had (until a modded Honda blows your doors off )

EWG is a great mod, just make sure to take a drive with someones that is running one that Vents To Atmosphere first . The youtube videos just don't do it justice.

-Dan

Last edited by 4ST-AIR; 12-13-2009 at 01:18 PM.
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Old 12-13-2009, 04:01 PM   #9
BlackEyeII
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Quote:
Originally Posted by 4ST-AIR View Post
I wont argue but there sure is something of a rush when you can break all 4 loose when FFS from 2nd to 3rd at 50mph

-Dan
Now tell him the story of why your signature says Axis Stage 3

:P That being said I find myself lined up for a built shortblock at present.
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Old 12-13-2009, 04:35 PM   #10
khyree05
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Quote:
Originally Posted by BlackEyeII View Post
Now tell him the story of why your signature says Axis Stage 3

:P That being said I find myself lined up for a built shortblock at present.

Why? Do you have a stock shortblock? If so how is it doing with the 20g?
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Old 12-14-2009, 11:26 AM   #11
wrxroberts
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something I just thought about, could the dip in power due to the waste gate not working properly be a result of the infamous vf39 crack? i know there prone to it and i have been pushing the turbo around 18 to 21 psi for about the last 25000 miles. what do you think?
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Old 12-14-2009, 11:36 AM   #12
AlxSti
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whats a dynomite dyno?

16lbs is really low.. higher boost isnt harmful (yes even in the winter).. as long as shes tuned properly. boost doesnt kill motors. i'd sell the hallman mbc and get a grimmspeed bcs. the ecu does an excellent job at controlling boost. also, that dip in the powerband doesnt look good.. i'd def call and get more clarification until you fully understand whats going on. wg problem? like what? wgdc should have been adjusted properly during the tune..
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Old 12-14-2009, 12:03 PM   #13
wrxroberts
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yeah i wasn't sure about the name of the dyno but i'm sure you could find out on there website www.amstuning.com i've seen other dyno graphs before with similar dips where people say they have problems with the iwg but who knows. my tuner assured me it wasn't a major problem so i'll stick with that and see how it goes
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Old 12-14-2009, 01:05 PM   #14
FettLord19
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Quote:
Originally Posted by wrxroberts View Post
something I just thought about, could the dip in power due to the waste gate not working properly be a result of the infamous vf39 crack? i know there prone to it and i have been pushing the turbo around 18 to 21 psi for about the last 25000 miles. what do you think?
I dunno about that. Maybe, but I doubt it. I had a vf39 with 100,000 miles on it and it had the crack. Turbo worked fine, and it was pushing 21 psi for at least the same amount of mileage.

Edit:

Looks like that front mount is working out pretty good for you! I don't see a whole lot of lost spool between the graphs. My coworker got his Evo 9 tuned by them, and it goes like a bat out of hell.
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