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Old 04-11-2007, 11:10 AM   #1
patrick smith
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Subaru Banner COBB A/P install and dyno sheet.

hi,

so i installed my cobb stage 1 a/p on my 06 sti. only mods are blitz cat back and K&N typhoon intake. car dyno before a/p was 280hp, after 312 whp, 287lbft before a/p 324lbft after a/p.
Seems like good gains. but i wanted feed back on what you think of the power band from my dyno sheet. as far as the car seat of the pants, it feels great.. lots more power sooner. out of the corner power is real nice. i cant wait to get to a track. just seems like the power falls off fast. i have heard this normal for stock turbo. true or false?
I do like how the torque comes on before the hp peaks. and 18psi is sweet, it comes on like a shot of NOS. i only loaded the stage 1 cobb map, no special tuning done.

well anyway here is the dyno sheet, feedback please...

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Last edited by patrick smith; 04-11-2007 at 11:19 AM.
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Old 04-11-2007, 03:42 PM   #2
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Those seem like good gains! I'll be following the same path, except with a Cobb Short Ram and a Crucial Racing DP. If you got those gains without a DP I'm excited to see what gains one would net with a DP.

Thanks for this. (:
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Old 04-12-2007, 06:44 PM   #3
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i just talked to cobb and they seem to think ive got to much boost. but they also said to let the car learn the new prgram. so ill give it another few weeks and see. but even though im getting 18psi peak, it still running rich, so im not afraid of poping the motor.
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Old 04-12-2007, 06:45 PM   #4
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Quote:
Originally Posted by stormhalter View Post
Those seem like good gains! I'll be following the same path, except with a Cobb Short Ram and a Crucial Racing DP. If you got those gains without a DP I'm excited to see what gains one would net with a DP.

Thanks for this. (:

with a DP i would expect another 10-15 hp. with a stage 2 map.
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Old 04-12-2007, 06:48 PM   #5
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News flash! you aren't getting 312whp on stage 1... sorry pal, keep dreaming. You won't even see those numbers stage-2, MAYBE with a tune, if you re lucky.
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Old 04-12-2007, 06:53 PM   #6
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probly depends on the dyno,, this was not a roller dyno,, so im sure the numbers might varry. but i do know im getting more boost and gained on my curve. should probly be crank hp & torque numbers...
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Old 04-12-2007, 07:00 PM   #7
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280whp on a stock 06 sti & 312whp from a stage 1 ots cobb map? hahahahahahah yeah right. my 04 sti with full tbe and cobb ots stage 2 93 oct map would be lucky to see 280whp. um.. sorry.. try again
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Old 04-12-2007, 07:19 PM   #8
patrick smith
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so is the dyno sheet wrong? not sure whats up then
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Old 04-12-2007, 08:08 PM   #9
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that dyno sheet is defiantely wrong. i have an 06 sti with invidia catless dp, hks hi power catback, cobb accessport, cobb pulleys, and cobb intake with a protune it would probably put down maybe 300whp if im lucky
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Old 04-12-2007, 08:10 PM   #10
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theres no way that car with an intake and catback put 28? whp maybe with an intake and an amazing protune but still i dont see that happeneing with out a dp
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Old 04-12-2007, 08:14 PM   #11
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"maybe with an intake and an amazing protune but still i dont see that happeneing with out a dp"

woops i meant to say "maybe with a dp and an amazing tune plus the intake and catback? you sure you were running 93 not 100
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Old 04-12-2007, 08:17 PM   #12
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One interesting thing I noticed at the top of the dyno graphs is "Fly Wheel Torque/Power." It looks like the gui is applying a correction factor in addition to SAE to compensate for drivetrain losses.

-Edward
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Old 04-12-2007, 08:21 PM   #13
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ahh hah interesting
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Old 04-12-2007, 08:49 PM   #14
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Even flywheel HP, numbers are closer, but still off.
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Old 04-12-2007, 09:54 PM   #15
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well maybe ill go to another dyno and see whats up with the numbers.
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Old 04-12-2007, 10:06 PM   #16
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Quote:
Originally Posted by Edward STi View Post
One interesting thing I noticed at the top of the dyno graphs is "Fly Wheel Torque/Power." It looks like the gui is applying a correction factor in addition to SAE to compensate for drivetrain losses.

-Edward
ALL DynaPaks read in 'Flywheel Torque/Power' due to the fact that they refer to dyno hubs as flywheels in which they are.

But this is by far one of the highest reading dynapaks in the world....
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Old 04-12-2007, 10:55 PM   #17
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Quote:
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Even flywheel HP, numbers are closer, but still off.
That's exactly my point. You can see that the car baselines at ~280 ?hp when most cars baseline at much less whp. Therefore there's certainly some correction factor being utilized. Let's assume the car actually based at 235 whp. That would mean that the number you see was corrected with a ~1.2 factor. The conversion would be 312 ?hp/1.2 = ~260 whp. That seems feasible.

-Edward
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Old 04-13-2007, 12:37 AM   #18
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Those numbers do seem very high for the mods you have - I have recently dyno'd... with stock DP, K&N Typhoon, Cat-back, pulleys, and TGV deletes and made 272hp and that was with a quality protune by Dynocomp.

I personally don't like Dynapack dynos, which is what I see you ran these numbers on...
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Old 04-13-2007, 12:47 AM   #19
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Quote:
Originally Posted by patrick smith View Post
i just talked to cobb and they seem to think ive got to much boost. but they also said to let the car learn the new prgram. so ill give it another few weeks and see. but even though im getting 18psi peak, it still running rich, so im not afraid of poping the motor.
ecu "learning" is a bunch of rubbish.

The only things that are learned in the ecu are closed loop fuel trims, fine ignition and IAM/DAM if it isn't initially set to 16/1.

Boost control ISN'T LEARNED!
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Old 04-13-2007, 10:46 AM   #20
patrick smith
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Default oh well,, still happy

well no matter what the numbers are, and all the conflicting info and opinions,(good or bad), im still happy with how the sti runs and how the new power ( how ever much ) feels.

get me to a track !!!!

patrick
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Old 04-13-2007, 11:28 AM   #21
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Back on topic,

The graph has a few too many dips in it. Your graph should hit peak and smoothly taper off. Those sudden drops are likely pulled timing due to spiking boost, neither of which are any good.

Cobb's OTS maps aren't exactly the best out there.

-J
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Old 04-14-2007, 07:58 PM   #22
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In defense of the OP...I have an 06 Sti making similiar numbers with similiar mods. It was protuned on a dynapack as well. Is it a dynapack thing??
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Old 04-14-2007, 08:33 PM   #23
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Default 07 sti with dp catless ecutek reflash has 315 &whp & 327 torque

Quote:
Originally Posted by MarkRx View Post
News flash! you aren't getting 312whp on stage 1... sorry pal, keep dreaming. You won't even see those numbers stage-2, MAYBE with a tune, if you re lucky.
i dont see how he got that or that dyno has one hell of an adjustment, 06 sti dieerent heads , valves, turbo ???? vf43 , pistons extra,


8.3 sec 1/8 mile 07 sti moded slightly.

forget the graph i can make anything look good on paper take it to the track and let see ur time
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Old 04-14-2007, 08:35 PM   #24
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church uses a dynapack... which reads high.. they also have a awd mustang i believe. with just a turbo back no cobb i hit 300whp on that dyno.. so it does read high.
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Old 04-14-2007, 08:36 PM   #25
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Quote:
Originally Posted by STi-MAN View Post
church uses a dynapack... which reads high.. they also have a awd mustang i believe. with just a turbo back no cobb i hit 300whp on that dyno.. so it does read high.
like i said let me see him run it in the track he is probably in the 8.8 , maybe 9.3
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