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Old 03-10-2014, 12:33 AM   #1
|Rev|
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Member#: 100651
Join Date: Nov 2005
Chapter/Region: RMIC
Location: Longmont, CO
Vehicle:
2010 STI
OBP

Default 2010 STI 1.5xtr 374/360

Event: E85 Tune
Ambient Temp: 85
Elevation: 5,000.00
Weather: Sunny

Car: 2010 STI
Tuner: Harvey at the Boost Creep
Dyno Info: Dyno Dynamics
Transmission: Stock 6 speed
Gear: 4th
Peak HP at RPM: 372
Peak Torque at RPM: 360
Stock STI HP on this dyno: 228
Target Boost: 21 PSI
Target AFR: 11:1 (ish)
Fuel: E85
Engine/Power Modifications:
Blouch Dominator 1.5 xtr 8cm 2.4 inlet
Harman motive exhaust w/ high flow catted downpipe
Cobb SF intake w/ box
Perrin Turbo Inlet
Suba Performance built short block w/
Oem Nitride treaded crankshaft
Eagle Rods
ACL Main Bearings standard
ACL Rod Bearings 52mm
CP Pistons and rings

Fuel / ECU:
Cobb AP V3
Grimmspeed 3 port EBCS
ID1000 Injectors
Walboro 255 Pump

Tune was done after a break in period on a new block, needless to say I was a little gun shy and didn't want to push hard. Harvey said he didn't have to push timing hard at all at this boost level to make this power. Now that I've got some miles on the block I've considered turning the boost up and going for a little more this spring/summer. Any thoughts?


Dyno Sheet by Pyle.DirtyUp, on Flickr


Engine Bay -2 by Pyle.DirtyUp, on Flickr
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Old 03-10-2014, 05:54 AM   #2
toph
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Chapter/Region: NESIC
Vehicle:
08 STi SSM 3.5XT-R
15 WRX 6MT Limited CBS

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With a built short block and E85, I would have had him push it a bit more. 21psi is rather low. You're only making 250lb/ft+ for ~2800 RPM. I'm sure altitude doesn't help.
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Old 03-10-2014, 11:16 AM   #3
ALOKIN
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Join Date: Feb 2013
Chapter/Region: TXIC
Location: TX
Vehicle:
2013 WRX STI Limited
440whp on teh moonshine

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The dom likes more boost. What are your IDC's with those injectors?

I only ask because I had the ID1000's when I put my dom1.5 10cm in and I ran out of fuel at 22psi (my tuner didn't feel comfortable pushing it without either upping base pressure or new injectors/pump). I ended up going to ID1300's because a bigger turbo will be replacing the 1.5 this summer.

If you have the fuel there is no reason you shouldn't up the boost a bit.
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Old 03-10-2014, 11:48 AM   #4
vinny.dtw
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Member#: 139718
Join Date: Feb 2007
Location: In the Mitten
Vehicle:
2011 STi, E85 1.5xtr
WRB, Show and a little GO

Default

Can we safely raise the boost on stock heads though?

Maybe he doesn't have arp head studs? Just playing devils advocate. But on e85, it does seem a bit low, but we are also used to the inflated dyno jet numbers or e-dyno people provide...
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Old 03-10-2014, 12:33 PM   #5
BroBroBroBroBro
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Location: Pemeal Bacon
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equal headers+frontmount

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i dont care about your build i just love the clean engine compartment....its spotless
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Old 03-10-2014, 12:47 PM   #6
wgr73
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CAMTuning.com

Default

Quote:
Originally Posted by vinny.dtw View Post
Can we safely raise the boost on stock heads though?
Absolutely. People run more boost (tapers off) on E85 with the stock turbo than he is doing with this Dom!
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Old 03-10-2014, 03:14 PM   #7
|Rev|
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2010 STI
OBP

Default

Thanks for the comments guys. I'll have to go out with the AP and figure out the IDC's. This tune actually happened last summer, I'm just now getting around to making a thread because I want to turn up the boost.

I seem to remember the IDC's being somewhere around 70-80% so I don't have a whole lot of injector left. I don't know how much more I'll need for 3-4 psi more boost.
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Old 03-10-2014, 03:52 PM   #8
JMK508
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Its like a STI.....
but it doesn't break

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It seems right on point for 93 pump....but with E-85 a little low. Best way to think about it is your engine should last a long time with this tune.

Thats a good thing in the Subaru world
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Old 03-10-2014, 08:18 PM   #9
vinny.dtw
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Member#: 139718
Join Date: Feb 2007
Location: In the Mitten
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2011 STi, E85 1.5xtr
WRB, Show and a little GO

Default

Quote:
Originally Posted by wgr73 View Post
Absolutely. People run more boost (tapers off) on E85 with the stock turbo than he is doing with this Dom!
uhh, a stock turbo @ 21 psi, and a dom 1.5xtr @ 21 psi is two very different things...
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Old 03-10-2014, 08:44 PM   #10
Subian
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The 2.0L that could

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Are you sure your AFR is accurate? Low 11's is a little on the rich side for E85? Not sure if the elevation has anything to do with it.
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Old 03-10-2014, 09:01 PM   #11
|Rev|
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OBP

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Quote:
Originally Posted by Subian View Post
Are you sure your AFR is accurate? Low 11's is a little on the rich side for E85? Not sure if the elevation has anything to do with it.
That's a question I'd have to ask my tuner. (unless it's somewhere on my AP) I'm honestly not 100% positive, I would have known last year when the tune happened

Quote:
Originally Posted by JMK508 View Post
It seems right on point for 93 pump....but with E-85 a little low. Best way to think about it is your engine should last a long time with this tune.

Thats a good thing in the Subaru world
I'm not all that worried about the "numbers". I feel like the car runs great, and I like that it's a safe tune. Just considering going for a higher boost tune to use on occasion.


Side note, I freaking LOVE boost select. So convenient and I feel a lot better daily driving on 16psi when it's in Sport mode and being able to turn it up to 21psi on the fly by toggling sport sharp on. makes me a happy banana.
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Old 03-10-2014, 09:04 PM   #12
fatman13
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Default

Crank that **** up man I'm making 360hp/430ftlbs on stock turbo, stock block, stock catback
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Old 03-10-2014, 09:45 PM   #13
Paul
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^Yea but I doubt you did that on a DD dyno or at 5k+ elevation.
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Old 03-11-2014, 04:04 AM   #14
Joshwrx04
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'05 CGM STi cornfed
'82 s-10 (427'nd soon)

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youre not making 430 ftlbs on any real dyno with a stock turbo

anyway our sheets are almost identical , I made 370whp and 360 tq with the dom 1.5 3 inch inlet and 8cm but on 92 pump gas, on cobb surglins mustang dyno also

im hopingh to get back on the dyno with e85 here soon and crack 400
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Old 03-11-2014, 09:52 AM   #15
|Rev|
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Join Date: Nov 2005
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Location: Longmont, CO
Vehicle:
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OBP

Default

Quote:
Originally Posted by Joshwrx04 View Post
youre not making 430 ftlbs on any real dyno with a stock turbo anyway our sheets are almost identical , I made 370whp and 360 tq with the dom 1.5 3 inch inlet and 8cm but on 92 pump gas, on cobb surglins mustang dyno also im hopingh to get back on the dyno with e85 here soon and crack 400
Nice! Let me know how well it works out for you. What boost levels are you going for?
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Old 03-14-2014, 02:59 AM   #16
Joshwrx04
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Join Date: Dec 2006
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Location: Lake Stevens WA
Vehicle:
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'82 s-10 (427'nd soon)

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on e85 prob around 22,23psi
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Old 03-15-2014, 12:50 AM   #17
fatman13
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Default

Quote:
Originally Posted by Joshwrx04 View Post
youre not making 430 ftlbs on any real dyno with a stock turbo anyway our sheets are almost identical , I made 370whp and 360 tq with the dom 1.5 3 inch inlet and 8cm but on 92 pump gas, on cobb surglins mustang dyno also im hopingh to get back on the dyno with e85 here soon and crack 400
Obvi a dyno jet
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Old 03-15-2014, 01:39 AM   #18
Joshwrx04
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Location: Lake Stevens WA
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'82 s-10 (427'nd soon)

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Haha true
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Old 03-15-2014, 10:15 PM   #19
Brandon2k13
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Vehicle:
A car that goes
Vrooom!

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I'm not a big gold fan, but that TMIC is on point.
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