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Old 11-01-2009, 02:11 AM   #1
STidub
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Member#: 142031
Join Date: Feb 2007
Chapter/Region: SCIC
Location: Lake Forest
Vehicle:
2005 CGM STi

Default Dyno'd: Garage Tuning tuned 2.5L vf-39 91+Meth - 348awhp/419awtq @21psi

Event: dyno tune
Location: Garage Tuning, Orange CA
Ambient Temp: 70 deg Fahrenheit
Elevation: sea level

Car: 2005 STi
Tuner: Kevin @ Garage Tuning
Dyno Info: Dynapack
Peak HP at RPM: 348awhp @ 5383 rpm STP corrected
Peak Torque at RPM: 419awtq @ 3585 rpm STP corrected - Slipping clutch at peak tq.
Baseline hp/tq for a stock on same dyno: 2.5L STi - 235/245 i think?
Target Boost: 21 psi - max peak 22.5 psi
Target AFR: 12:1
Fuel: 3.5 gal 91 oct Shell v-power + 3.5 gal 91 oct Chevron - California special winter blend. (thank you politicians and Al Gore!!) 100% methanol injection starting @ 7psi (thank you Coolingmist & GT!!)

Engine/Power Modifications: Catted DP, 3" to 2.5" exh, ported manifold, big fuel pump, 1 step colder plugs, APS 65mm cold air intake, TiC Manga Cow sticker on driverside mirror.

Driveline
Modifications: 60K mi stock clutch + 419lbft = bye bye clutch.

Suspension Modifications:JDM Pink springs, tranny/shifter/diff bushings, 24mm adj sway bars.

Yesterday Kevin and the gang over at Garage Tuning in Orange, CA installed my Coolingmist VC2 Meth kit and then tuned the car on their Dynapack dyno. The car baselined at 294whp without meth and then with 100% meth injected the HP jumped to 352whp! This was at 21psi with 12:1 AFR target. It was obvious the clutch was giving out with 433awtq so Kevin smoothed the peak tq down a bit to 419 - still slipping so a new clutch is forthcoming. I will post the final dyno sheet that shows 348whp/418awtq on Monday as well as the pics of the 352/433 run. You can see the clutch slipping on the plot. Even though the clutch is slipping the car is amazingly quick. I could not believe the difference in how the car drove before and after. With the meth kicking in at 7 psi the car is an absolute beast when you hit the gas. I'll be getting a new clutch soon and then doing a quick road tune to get everything perfect. I'm kicking myself for not getting my meth kit put on sooner! (It had been sitting in my office for 6+ mo) The VF-39 is a torque monster for sure. A quantum leap more fun than ots Stage 2.

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Last edited by STidub; 11-01-2009 at 07:03 PM. Reason: Added dyno sheet pic
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Old 11-01-2009, 06:17 PM   #2
pooster.online
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graph?
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Old 11-01-2009, 06:19 PM   #3
juanmedina
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07 FPgreen 7.37@95
WRX VF39+E85 12.0, 121mph

Default

great numbers congrats, it should be fun

Last edited by juanmedina; 11-01-2009 at 06:31 PM.
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Old 11-01-2009, 07:14 PM   #4
STidub
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Thanks. The car is super fun to drive. I posted the dyno sheet. I can't wait till I get a new clutch and can really see what it can do.
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Old 11-06-2009, 07:35 PM   #5
pooster.online
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damn thats some crazy response. peak torque by 3100... seems like its falling off a bit hard 6-7k though
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Old 11-06-2009, 10:24 PM   #6
hammyt
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Quote:
Originally Posted by pooster.online View Post
seems like its falling off a bit hard 6-7k though
agreed. nice peak numbers tho.
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Old 11-07-2009, 10:50 AM   #7
drr
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X3, Very nice numbers though!
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Old 11-09-2009, 05:46 PM   #8
STidub
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Thanks. The credit for maxing out the turbo goes to Kevin who did the tune. The torque fall-off above 6K is most likely due to the stock turbo. I know the vf39 is a very torquey turbo which is only accentuated by the meth tune - combine that with its lackluster higher rpm flow ability and you have a fairly big drop from the peak. I could be wrong, but that's the best explanation I can come up with. In all reality though, it is not noticeable while driving. The car feels amazingly quick and is much more fun to drive. The stock clutch seems to be holding pretty well for now despite its problems on the dyno. New clutch next month maybe. Any suggestions for a DD clutch that can hold 500+ ft-lb is appreciated. I don't want anything too stiff or hard to drive.
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Old 11-09-2009, 05:57 PM   #9
godforbid67
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35r, PPG, 280's, PSS9.

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Uncorrected numbers please .

Chris
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Old 11-09-2009, 06:25 PM   #10
Deuce Cam
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Quote:
Originally Posted by pooster.online View Post
damn thats some crazy response. peak torque by 3100... seems like its falling off a bit hard 6-7k though
That's a 257 for you. They don't often make power past 6K rpm without a huge turbo like a 35r.
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Old 11-12-2009, 12:39 AM   #11
STidub
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Quote:
Originally Posted by godforbid67 View Post
Uncorrected numbers please .

Chris
Sorry, but I don't have any numbers except what was printed out on the dyno sheet. Personally I am not concerned so much with peak numbers but rather the improvement over stock and how the car drives. If you want to try to quantify or compare the performance gains in a meaningful way you simply look at the hp/tq difference between a baseline and what the car is now putting down. Stock STi's typically put down 235/245 on this dyno and my car with stated mods put down 348/419. Other tuners with Dynapacks also confirm stock Sti's put out around 240/240. Take it for what it's worth I guess.
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Old 12-01-2009, 11:28 PM   #12
STidub
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Well, I just got my new clutch installed so I can finally get this tune dialed in. It's going back on the dyno tomorrow to fine tune it with the new ACT HD Street clutch and vac leak fixed. I'm also going to be putting the stock intake box back on in order to make my engine bay as close to stock looking as possible. We'll see what the power difference will be between the 65mm APS and stock box. The new clutch will now easily hold 500+ ft lbs I think. I can't wait! I'll post new dyno sheets and info on the changes soon.
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Old 12-01-2009, 11:30 PM   #13
STi Mikey
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13' Benz, 15' WRX

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Quote:
Originally Posted by STidub View Post
Well, I just got my new clutch installed so I can finally get this tune dialed in. It's going back on the dyno tomorrow to fine tune it with the new ACT HD Street clutch and vac leak fixed. I'm also going to be putting the stock intake box back on in order to make my engine bay as close to stock looking as possible. We'll see what the power difference will be between the 65mm APS and stock box. The new clutch will now easily hold 500+ ft lbs I think. I can't wait! I'll post new dyno sheets and info on the changes soon.
you should see no power loss. an intake never made a difference on my stock turbo car, it ran 12.0's with and with out it and made the same power on the dyno.
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Old 12-03-2009, 02:58 PM   #14
STidub
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Well, we got it on the dyno then realized the new clutch still was not broken in quite yet and was slipping badly. I'll drive it around for a few days and then go back to finish up the tune.

Thanks for the input STi Mikey! I would like to put the stock intake back on but that will make more work for my tuner since the tune was with the APS and I am out of $$. I just don't have the money for the dyno time to change it back right now so it looks like the APS stays. I have also heard that the stock intake can flow enough for a stock turbo, but my tuner says he's absolutely positive he can get more HP out of an aftermarket intake. How much more is the real question. I guess I have to defer to his expertise since he has done an amazing job so far with my car. It would be fun to do a back to back tune comparison with the stock intake and aps though. In your situation it sounds like the difference was negligible.
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Old 12-03-2009, 06:51 PM   #15
FettLord19
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2006 OBP STi

Default

Dude it looks sick! I'm jealous I've had my aquamist hfs-6 kit waiting to go on the car for like 7 months now. I have no money either...stupid economy. Hope the clutch works out for you. I have been using an APS streetmax clutch for about 45k on my sti, and It hasn't slipped yet (only making 340ft pounds though). Only feels about 10% heavier than stock in my opinion. Make sure you post up the final numbers when your done!
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Old 12-05-2009, 12:03 AM   #16
STidub
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Quote:
Originally Posted by FettLord19 View Post
Dude it looks sick! I'm jealous I've had my aquamist hfs-6 kit waiting to go on the car for like 7 months now. I have no money either...stupid economy. Hope the clutch works out for you. I have been using an APS streetmax clutch for about 45k on my sti, and It hasn't slipped yet (only making 340ft pounds though). Only feels about 10% heavier than stock in my opinion. Make sure you post up the final numbers when your done!
Thanks. The car is super fun with the meth. You will love the extra power you will get with the HFS-6. I probably had a coolingmist kit sitting around for more than a year before I finally got mine installed and tuned. It's worth the wait - don't get discouraged (I bought and sold 2 meth kits before I finally got the 3rd one installed). As long as you are on top of maintenance and monitoring the meth it is a great way to go. The clutch is still breaking in and still slipping... The engagement of the ACT HD street clutch is almost like stock, just a little snappier but with not too much more pedal effort. Just have to take it easy for now. I think it is getting better as it only slips when the meth kicks in at about 7 psi and above. I'll be sure to update the numbers sometime next week after it's all dialed in.

I just ordered an AEM dryflow filter off amazon for $50 to replace my K&N filter. I ordered the 9" long version instead of the 5"er since it has more surface area and therefore less restriction. The K&N that came with the APS seems pretty long as well, but I did not measure it.
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Old 12-05-2009, 03:38 AM   #17
BlKsUbYkId
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Bump for GT and Kevin

BTW STidub tell Scrappy and Curt I said wassup next time youre there lOl ... I havent seen them in awhile
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Old 12-09-2009, 10:03 PM   #18
STidub
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Quote:
Originally Posted by godforbid67 View Post
Well a lot of people like to do baseline uncorrected numbers and compare them to corrected numbers final numbers.
I personally just hate corrected numbers.
I agree - I am not sure why anyone would compare a baseline uncorrected with a final corrected numbers. Comparing apples to oranges.

Anyways - the car is way faster than before and kicks all kinds of A$$. It's such a shame to see those bewildered faces as my 4 door sleeper badgeless wonder pulls past them. How many of them go out and buy a chip or trade in after that?
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Old 12-15-2009, 08:01 PM   #19
DegNY
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stock internals?
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Old 01-04-2010, 07:41 PM   #20
STidub
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Well...I just got back from Garage Tuning and have some updated numbers. Since getting the original pro-tune on meth, a vacuum leak was detected and fixed, the stock 2.5" STi axleback was put on, a larger AEM filter was installed on the APS 65mm intake, and lastly the clutch was replaced (too much torque for the stocker). With those changes Kevin worked his magic on the dyno and squeezed out quite a bit more HP and TQ! It now has 367 awhp @ 5000 rpm and 437 awtq @ 3210 rpm! Kevin did a fantastic job is all I can say! Stage 2 pro tunes on this dyno make 280-290 awhp/tq so you can get an idea of what my mods and tune have done. Kevin went out of his way to make sure the car was running perfectly and done right. Props to Kevin and the guys at GT for exceeding my expectations again! 100% meth baby! This is on a stock motor with good compression. I'll post the new graph once I get a chance.
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Old 01-04-2010, 07:49 PM   #21
KINGSKY
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dam...
kevin is teh *****...



RANDi
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