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Old 08-22-2007, 03:10 AM   #1
Ultimate
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Default 06 wrx VF39 Pump Gas Dyno Results

This was with chevron 91 octane. Dyno Dynamics Dyno.

Tuned by Andy at Speed Element

Baseline with xpt stage 3 race map was 261.1 whp and 275 wtq

Results were 276.6 whp and 280 wtq

Power mods are:
Stromung Divorced Wastegate DP
MadDad 3CE
Apexi WS2 Catback
VF39 Ported and Polished
AEM Cold Air Intake
Walbro 255
Ebay SSAC TMIC

AFR was 11.1
Boost was 19.5 tapering to about 15 at redline

Numbers seemed kind of low to me, although the car is fast.

I will put the dyno plot up soon.
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Old 08-22-2007, 10:00 PM   #2
silver-duck
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Dyno's are different, my 06 was tuned on PDX dyno by Tim Bailey.
VF/39
perrin t/m
cobb d/p-sti cat-back
255 f/p
1 step colder plugs
stock intake with perrin turbo inlet and i/c hoses and amsoil element
288 hp--320 tq. VERY SMOOTH!
afr was 11.2- 11.3---18.5 boost
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Old 08-22-2007, 10:21 PM   #3
Nuke209
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I had the xpt stage 3 race map and yes indeed it was very fast, compare to the regular stage 3 map
though it might not make as much power as some, it seem'd way faster

I dont think it's all about the #'s
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Old 08-23-2007, 05:21 PM   #4
turboge
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Glad to see my RACE map was making respectable power compared to your final tune. Some cars can pickup extra HP at the top with some more timing but I had to back it down to allow wiggle room. Good to see the TQ was within 5lb-ft Do you have the sheets?
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Old 08-23-2007, 06:50 PM   #5
Chris_Lee
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Great numbers. Did you change out your boost control solenoid for the GM one?
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Old 08-24-2007, 03:04 AM   #6
Ultimate
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Yes I did. I also noticed a exhaust leak today. Probally shouldn't matter all that much but may get a fex extra horses out of it.

I will photo the sheets and put them up soon.

I would like to go back after I get this leak fixed.

I am using the GM Boost Control Solenoid.
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Old 08-24-2007, 01:12 PM   #7
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BTW... Chevron is the worst gas in a turbocharged subaru. The car would likely run another 10 to 15 whp with Exxon or Mobile or even shell gas. When tuning I find that the Chevron gas is a bit on the lite side and it really keep the timing down. Enjoy the car!

C
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Old 08-28-2007, 04:14 PM   #8
turboge
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Bump for sheets?
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Old 08-28-2007, 04:44 PM   #9
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Quote:
Originally Posted by AZScoobie View Post
BTW... Chevron is the worst gas in a turbocharged subaru. The car would likely run another 10 to 15 whp with Exxon or Mobile or even shell gas. When tuning I find that the Chevron gas is a bit on the lite side and it really keep the timing down. Enjoy the car!

C
im gonna have to say shell sucks pretty bad as well

i think the car isnt making the sweet numbers is because of the nice heat wave...
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Old 08-28-2007, 04:50 PM   #10
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Shell is top notch Fuel on the dyno. Some of the best. Gas really changes from state to state though. We are using Arizona summer blend which is complete crap. No matter what the brand it all sucks. Chevrons aditive package must make the fuel lighter as it will really lean the car out on the dyno. Its best to try different fuels to see whats best in your state. You can order a report that will show you all of the specs that where tested on your towns gas but its pricey.

Clark
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Old 08-28-2007, 05:19 PM   #11
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My favorite was sunoco 94 octane.. such a shame they couldnt keep it up here in the NE.

Those arnt low number OP, i wouldnt say that anyway.. if your car is fast then its all good.
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Old 08-28-2007, 05:33 PM   #12
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Here on the East coast I find that Sunoco,Shell, Hess are the best...in that order. At least here in NJ anyways.
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Old 08-28-2007, 06:11 PM   #13
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numbers seem pretty low, i made 288tq on a stage 2 ots cobb map. i made that without a 39. weird.
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Old 08-28-2007, 09:32 PM   #14
jfolland
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Quote:
Originally Posted by PaulRex View Post
My favorite was sunoco 94 octane.. such a shame they couldnt keep it up here in the NE.
they sell sunoco 100 octane around here at like 2 stations...
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Old 08-29-2007, 12:03 AM   #15
RedRex26
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yeah those numbers seem pretty low. i put down 250 whp and 330 wtq on the stock turbo at 18 psi tapering down to 15psi at the redline i would go to a different tuner.
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Old 08-29-2007, 02:36 AM   #16
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Quote:
Originally Posted by AZScoobie View Post
Shell is top notch Fuel on the dyno. Some of the best. Gas really changes from state to state though. We are using Arizona summer blend which is complete crap. No matter what the brand it all sucks. Chevrons aditive package must make the fuel lighter as it will really lean the car out on the dyno. Its best to try different fuels to see whats best in your state. You can order a report that will show you all of the specs that where tested on your towns gas but its pricey.

Clark
good to know.... thanks for the info clark

also, i might be running a utec soon so i can use a cool can map
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Old 08-29-2007, 11:00 AM   #17
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ultimate any issues with the tranny yet?
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Old 08-29-2007, 06:54 PM   #18
Ultimate
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Quote:
Originally Posted by mattyk04 View Post
numbers seem pretty low, i made 288tq on a stage 2 ots cobb map. i made that without a 39. weird.
I imagine your also using 93 octane.

I would expect my numbers to be closer to the 300 whp range with 93.

No issues with the tranny yet. Knock on wood.
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Old 08-29-2007, 07:58 PM   #19
jetskibucky
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Default Gasoline

Quote:
Originally Posted by AZScoobie View Post
Shell is top notch Fuel on the dyno. Some of the best. Gas really changes from state to state though. We are using Arizona summer blend which is complete crap. No matter what the brand it all sucks. Chevrons aditive package must make the fuel lighter as it will really lean the car out on the dyno. Its best to try different fuels to see whats best in your state. You can order a report that will show you all of the specs that where tested on your towns gas but its pricey.

Clark
This not not true. Try to focus your attention to factors that matter. Fuel, whether sold at Shell, Mobile, Exxon, or XYZ company, often originates from the same refinery. Gasoline is a combination of two components, one being 2,2,4,Trimethylpentane, and n Heptane. The octane rating will be based on the ratio. If the percentage of 224tmp is 91% to 9% n Heptane, then the "octane" rating will be 91. This is an over-simplified explanation. If the octane rating of fuel is 91, or 93, it does not matter where it is bought. Federal regulations insure that these things are consistent. Additives are BS, a way for certain companies to justify charging more for their product. They are inert compounds that contribute nothing to performance, and questionably to reliability.

Steve
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Old 08-29-2007, 09:51 PM   #20
AZScoobie
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I guess we will have to agree to disagree. Since my job I purchased the gasoline testing manuals. This was advice from my grandfather that forumulated for XOM for 45 years. There is a significant difference in fuel brands from time to time and location plays a big part. Citys may have a Summer and winter blend which varies. Octane level must meet the minimum stated on the pump.

clark
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Old 08-29-2007, 09:57 PM   #21
JonR
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Quote:
Originally Posted by AZScoobie View Post
There is a significant difference in fuel brands from time to time and location plays a big part. Citys may have a Summer and winter blend which varies. Octane level must meet the minimum stated on the pump.

clark
+1. I have logged differences in knock just based on gas brand differences in my area as have many others. Most tuners I've talk to who see many cars from day to day think it makes a significant difference. The trouble I find is that even the ones that are good some times of the year do change during others and it is unpredictable at least around here. Makes me think more about running Torco all the time, which I did for about a year after seeing the differences.
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