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Old 06-27-2012, 10:03 PM   #1
07VTRex
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Dom 1.5xtr + PPG's

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Finally got the tune done for my blouch dominator 1.5xtr turbo! feels amazing. power delivery is much more linear than the previous sti turbo i had. i have included graphs of my old dyno plots just to show you how wildy these numbers vary. i find it funny that the car is clearly faster now with the larger turbo, yet it happens to be the lowest reading dyno sheet.
and before you say anything i know you cant compare differeeny dynos, but heres proof for the non-beleivers!

anyway, i want to give a big thanks to Ron for tuning this beast, and all my friends who helped me make this possible with their help, time, knowledge, pizza and beer.

Event: road/e-tune
Location: SW VA
Ambient Temp: 75 deg F
Elevation: 1100 feet above sea level
Weather: hot and sunny

Car: 2007 WRX TR
Tuner: Phatron
Dyno Info: Virtual Airboy spreadsheet
Transmission: Andrewtech built PPG 5 speed (helical)
Gear: 3rd
Peak HP at RPM: 308 @6030
Peak Torque at RPM: 291 @4440
Baseline hp for a stock on same dyno: Stock WRX 175hp@5350 & 188tq@3650
Target Boost: 18 psi
Target AFR: 10.7-11.0
Fuel: pump 93
Engine/Power Modifications:
Blouch Dom 1.5xtr w/ 8cm hotside, 2.4" inlet, ceramic coated
DW 750cc injectors
warlboro 255 fuel pump
STI tmic
spt heatshield
sti splitter+bellows
Grimspeed port and polish exhaust manifold +crosspipe
turboxs uppipe
tial 44mm ewg
hks downpipe
stromung 3" catback
SPT intake
samco turbo inlet hose
3mm phenolic intake manifold gasket
grimmspeed 3port ebcs

heres the virtual dyno plot


just for ****s and giggles lets have a look back at my old tunes
heres my plot from my vf43 tune by Dan @ MachV


and heres my tune before the Mach V tune. only difference was i had not gone EWG yet at this point


and of course! one of my baby in her current state



enjoy!!! questions comments concerns?
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Last edited by 07VTRex; 06-27-2012 at 10:09 PM.
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Old 06-27-2012, 10:05 PM   #2
07VTRex
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Dom 1.5xtr + PPG's

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complete mod list. why? because racecar!


Suspension/Divetrain
ANDREWTECH built ppg 5 speed w/ helical cut gears 1-4
ACT heavy duty street clutch
RCE Yellow Springs
TOKICO D-Spec adjustable struts
GROUP N Top Hats
TORQUE SOLUTIONS Engine mounts
TORQUE SOLUTIONS Transmission mounts
STI Aluminum control arms + free castor mod
SPT Subframe Brace
SPT Short shifter kit/linkage
KARTBOY Shifter bushings (front + rear)
KARTBOY Rear subframe lock bolts
KARTBOY Endlinks (front + rear)
KARTBOY Pitch stop mount
WHITELINE 24mm adj. Front Sway bar @23.5mm
WHITELINE 22mm adj. Rear Sway bar @23mm
WHITELINE Steering rack bushings
WHITELINE Anti-Lift Kit (comfort)
WHITELINE Roll-Center Adjusters and Bump Steer Kit
MSI Lateral links + TiC lateral link bushings
TiC X-Brace
TiC Shifter pivot bushings
TiC Shift linkage bushings
TiC Differential Outrigger Bushings (comfort)
TiC Rear Differential Mount Bushings (comfort)
TiC Transmission Crossmember Bushings
TiC Fender Braces
SUPERPRO Trailing arm Bushings (front + rear)
SUPERPRO Front inner control arm bushings
IXIZ Clutch Stop
VOLK Racing Le37t 17x8.5 +50 with 255/40/17 Hankook Evo (summer)
04 STI BBS wheels 17x7.5 +53 witth 225/45/17 Dunlop Wintersport 3d (winter)
Alignment set at 0o toe F/R, -2o camber Front, -1o camber Rear


Power
Blouch Dom 1.5xtr w/ 8cm housing and ceramic coated hotside
Deatchswerks 750cc injectors
STI TMIC
TurboXS uppipe w/ Tial 44mm EWG
HKS flat flange downpipe 3” (catless)
MADDAD midpipe 3”
STROMUNG axleback 3”
GRIMMSPEED Ceramic coated crosspipe
GRIMMSPEED port and polish stock manifold
GRIMMSPEED 3port electronic boost control solenoid
SPT Short ram intake (wrapped in heat reflective tape)
SPT Intake heat shield
SPT Turbo heat shield
SAMCO Turbo inlet hose
GIZZMO phenolic thermal intake manifold gaskets
WARLBORO 255 fuel pump
STI intercooler splitter and bellows


Brakes
BF GOODRIDGE Stainless Steel Brake Lines
HAWK HPS brake pads
PERRIN master cylinder brace “Stiffi”
ATE Superblue Racing Brake Fluid


Exterior
02-05 WRX sideskirts w/ front aero guards and side strakes
WRX rear spats
D.I.Y. cleared and painted headlights black
04/05 STI Tail lights w/ tinted inserts
USDM WRX fog lights (yellow PIAA bulbs)
20% tint
LED parking light and license plate light conversion
Replica STI polyurethane front lip
WRX front license plate delete
RALLYARMOR UR mud flaps
Grillcraft lower and upper grills (black)
SharpHID conversion kit 35w 4300k


Interioir
STI “Cherry Blossom Red” Pedals
STI Floor mats
JDM red hazard button
JDM STI 5-speed gear pattern
STI shifter surround (polished)
"Bugeye" front seats
JDM v7 STI rear seats
D.I.Y. Plasti-Dip interior trim black (dash panels, vent rings, A/B/C pillars)
D.I.Y. Black Sueded headliner
Bunches of shift knobs
DEFI Boost + Oil Press. + EGT gauges in ATI pod
AEM UEGO Wideband gauge in MB pod
ALPINE CDA-9887 head unit
MEMPHIS M-Class speakers (front + rear)
ALPINE 500watt amplifier
MOMO/POLK AUDIO 10” subwoofer
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Old 06-27-2012, 11:54 PM   #3
SoCal_Scooby
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stock engine?
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Old 06-28-2012, 12:38 AM   #4
07VTRex
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yes sir. 60k miles on it. spent the first 20-30k miles at stage 2, then from 30k-60k with sti turbo

its funny that it says it made more power with the sti turbo according to these dynos LOL
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Old 06-28-2012, 01:19 AM   #5
achavez
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nice numbers and powerband. phatron just finished tuning my very similar setup too. enjoy
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Old 06-29-2012, 11:49 AM   #6
Subian
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Where does full boost hit on this turbo in 3rd/4th?
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Old 06-29-2012, 12:42 PM   #7
07VTRex
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3400-3500 in 3rd gear, which is right where i was expecting it to be. i think its a lil sooner in 4th but i dont really use 4th.

Ron said we could have easily pushed it further, but suggested i leave it here if i wanted my setup to last. which i most certainly do as i can not afford a new engine right now
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Old 07-15-2012, 11:06 PM   #8
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Finally, missed this thread lol. I need a ride in it! Hopefully I can check it out at somepoint this upcoming weekend.

Oh and we need to race, Shelor, Friday night.
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Old 07-16-2012, 12:08 AM   #9
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nice numbers and even better powerband! thats exactly the kind of power band im looking for in a turbo and i thought the only way id get that was with a TS setup or a teeny tiny 16G XTR with a bigger hotside.


wonder how this would be on a 2.5 with a 10cm hotside? hmm
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Old 07-16-2012, 05:00 AM   #10
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Quote:
Originally Posted by WhatTurboLag? View Post
nice numbers and even better powerband! thats exactly the kind of power band im looking for in a turbo and i thought the only way id get that was with a TS setup or a teeny tiny 16G XTR with a bigger hotside.


wonder how this would be on a 2.5 with a 10cm hotside? hmm
07 WRX came with a 2.5L EJ255 motor. Check out Top Speed's test on this turbo they did a great job writing up all their graphs and everything with the Dom 1.5XTR 8cm and 10cm hot sides with 2.4" inlet

I cannot wait til I get my Blouch Dom 1.5XTR 3" inch inlet, 10cm hot side, ceramic coated installed on my built EJ257 with WRX 2.0L heads.

I've been enjoying seeing how this turbo spools and the power curve for everyone else. I'm excited for my new setup.
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Old 07-18-2012, 07:02 PM   #11
07VTRex
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spool is good. obviously not as snappy as the vf43/39 i had before, but not bad at all. In someways its a lot better in the sense its easier to drive, smoother power delivery, more off boost power/ throttle response.

before if i floored it at 2500 rpm, i would be fully spooled (18psi) by 3000 rpm. Now with new turbo if i floor it at 2500 rpm i wont be fully spooled till 3450 rpm (18psi). I was worried it was going to be like 37-3800 or even as bad as 4000 but i was pleasently proven wrong!

i really like this setup, i just wish i could push it more, but i fear my engine would esplode. I already have random misfires under light load/idle we havent been able to figure out. one day when i have a built shrotblock ready to put in, ill turn up the boost and see if she can hit 350whp on pump

Also, i see no point in the 10cm hotside when i have an EWG. that and the topspeed dyno comparison actually makes the 8cm look like the superior turbo regardless.

if this wasnt my DD and i didnt mind taking the intake manifold off again, i would have gone 3" inlet and bigger intake. My MAF is already hitting 4.8v on logs so its safe to say ive nearly maxed stock MAF way before the turbo is even close to being maxed out.


lastly, the numbers may be some of the lowest posted for this turbo, but dont let that fool you. the SHAPE of the curve awesome IMO. Even though my "before" and "after" dynos read the same HP. my injector duty cycle is about 90% on 750ccs and my MAF maxed. SO theres no way my 560 cc injectors at 90% were making the same power, unless im missing a huge part of the equation.

Last edited by 07VTRex; 07-18-2012 at 07:08 PM.
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Old 07-18-2012, 07:15 PM   #12
07VTRex
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I have been debating a lot lately about removing the front aero guards and/or the rear strakes (the ones in front of the rear wheel)

I am going to keep the rear bumper pieces i think, and definitely the side skirts. But should i ditch the add-on aero or leave them?

help me choose people!!!
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Old 07-18-2012, 07:29 PM   #13
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Why didn't you go with the 2.5xtr? The 1.5xtr is not known to make much more than an OEM STI VF.

The curve of the virtual dyno will be different than an actual dyno reading. So wouldn't put too much weight into it.
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Old 07-18-2012, 09:46 PM   #14
bswilmington
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Quote:
Originally Posted by Fierysun View Post
Why didn't you go with the 2.5xtr? The 1.5xtr is not known to make much more than an OEM STI VF.

The curve of the virtual dyno will be different than an actual dyno reading. So wouldn't put too much weight into it.
Thats not true. Dom 1.5 is has same compressor wheel as Dom 2.5 at 71mm, only difference is turbine wheel is 56.5mm on the Dom 1.5 and 60mm on the Dom 2.5. Difference between two should be spool. Both turbos shouldnt have problem making over 400whp as they are essentially a GT30 turbo with custom billet wheel. Now trick to this turbo is higher boost as that is where it will start to shine, and of course higher octane fuel whether its E85, race gas, or meth.

Also all of my virtual dynos generally have the same shape as my dyno pulls that I have done, this was with my stock VF39 as I havent dynoed my Dom 1.5 that I have. But was making 380whp VD at 21 psi and ~365whp on airboy on the Dom 1.5 with 10cm EWG. But unfortuanity this was with broke ringlanding as I thought source of my oil smoke was turbo so I replaced my VF with Dom, later I learned it really is internal.
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Old 07-19-2012, 11:12 AM   #15
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Quote:
Originally Posted by Fierysun
The 1.5xtr is not known to make much more than an OEM STI VF.
How did you arrive at that conclusion?
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Old 07-19-2012, 11:26 AM   #16
Zaider
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Looks solid. Definitely spools better than my Dom 1.5 on my V7 EJ207 but that's the higher altitude (3500ft) and the smaller displacement. Im making 280whp with this turbo but limited to 18psi while I try to figure out why its misfiring at higher boost (possibly coilpacks).

Definitely a much better turbo (with 3-400rpm more lag) than the VF30 I had before. Kind of wish I'd gone with the twinscroll version.
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Old 07-19-2012, 02:06 PM   #17
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I would like to how he came to that conclusion as well. Unless he is referring to torque maybe. S
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Old 07-19-2012, 02:27 PM   #18
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Quote:
Originally Posted by HSBabyFace View Post
How did you arrive at that conclusion?
People are making good power with the VF52 on pump, along the same lines (in some cases better) as the 1.5xtr on pump. Which the OP graphs also re-affirms. With that being said, the 1.5xtr will excel with higher octane gas.

If I was concerned about spool and running the car on pump. I would have went with a different turbo.


Quote:
Originally Posted by bswilmington View Post
...Dom 1.5 is has same compressor wheel as Dom 2.5 at 71mm, only difference is turbine wheel is 56.5mm on the Dom 1.5 and 60mm on the Dom 2.5. Difference between two should be spool.
False. The 2.5xtr will make more mid to top power than the 1.5xtr, both on pump and on better gas. True on the 1.5 spooling quicker.

Last edited by Fierysun; 07-19-2012 at 02:33 PM.
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Old 07-19-2012, 02:54 PM   #19
northman
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Quote:
Originally Posted by Fierysun View Post
People are making good power with the VF52 on pump, along the same lines (in some cases better) as the 1.5xtr on pump.
I call BS. Went from a VF to a Dom 1.5, the Dom has much more power potential. Went from a nearly maxed-out 300 whp to 355 whp with room to push it later if needed. I'm holding a flat 18 psi out to redline, no VF does that.
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Old 07-19-2012, 02:58 PM   #20
northman
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Quote:
Originally Posted by Fierysun View Post
The 2.5xtr will make more mid to top power than the 1.5xtr, both on pump and on better gas. True on the 1.5 spooling quicker.
According to Blouch they are both 49 lb turbos. So the top-end advantage of the 2.5 can't be much.
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Old 07-19-2012, 03:45 PM   #21
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Quote:
Originally Posted by 07VTRex View Post
spool is good. obviously not as snappy as the vf43/39 i had before, but not bad at all. In someways its a lot better in the sense its easier to drive, smoother power delivery, more off boost power/ throttle response.

before if i floored it at 2500 rpm, i would be fully spooled (18psi) by 3000 rpm. Now with new turbo if i floor it at 2500 rpm i wont be fully spooled till 3450 rpm (18psi). I was worried it was going to be like 37-3800 or even as bad as 4000 but i was pleasently proven wrong!

i really like this setup, i just wish i could push it more, but i fear my engine would esplode. I already have random misfires under light load/idle we havent been able to figure out. one day when i have a built shrotblock ready to put in, ill turn up the boost and see if she can hit 350whp on pump

Also, i see no point in the 10cm hotside when i have an EWG. that and the topspeed dyno comparison actually makes the 8cm look like the superior turbo regardless.

if this wasnt my DD and i didnt mind taking the intake manifold off again, i would have gone 3" inlet and bigger intake. My MAF is already hitting 4.8v on logs so its safe to say ive nearly maxed stock MAF way before the turbo is even close to being maxed out.


lastly, the numbers may be some of the lowest posted for this turbo, but dont let that fool you. the SHAPE of the curve awesome IMO. Even though my "before" and "after" dynos read the same HP. my injector duty cycle is about 90% on 750ccs and my MAF maxed. SO theres no way my 560 cc injectors at 90% were making the same power, unless im missing a huge part of the equation.
I haven't seen a dyno sheet from a 3" inlet and I would like too but soon I will see my own 3" inlet Dom 1.5XTR at about 6,000 ft altitude with E-85. I hope I can get my 400WHP mark with the upgrades I have. I'm wondering if the 3" inlet will help spool any.

Oh and as far as the dyno graph of the 8cm vs 10cm that Top Speed did. The 10cm held more boost/power longer than the 8cm. Both spooled about the same only difference was top end. I've been over that thread a hundred times.

I'm excited for my new setup and hope it's everything I've been expecting it to be.
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Old 07-19-2012, 03:59 PM   #22
07VTRex
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the blouch website has a misprint. the 1.5xtr is rated at 47 lbs/min and the 2.5 xtr rated at 49lbs/min

Why did i choose the 1.5 over the 2.5? The difference is negligble. I wanted 350 whp before i realized my engine didnt want to make that much on stock internals. I am not gonna push the 1.5 as far as it should be pushed so why go even bigger and have even more lag? in hindsight, i got ahead of myself and should have built the motor first. I should have waited and done it all at once, or settled for a maxed out 18g setup. oh well captain hindsight....

i do not think the size of the intake is going to effect spool at all. i think it is completely unrelated, and it is the exhaust size/shape/length that matters, but i could be wrong.

all in all i really like this turbo, i just wish i had of planned better instead of being impatient as always.

just because a vf series might have the same peak hp number as this turbo does not mean its as fast. its the area under the curve, integral for you math people, that is what makes a car fast. Peak numbers are just peak numbers and do nothing to describe the overall shape of the power curve. Even without understanding the theory, anyone who has ridden in a tuned VF subaru knows they fall on their face afer about 5000 rpms and make jack **** for power, temps rise, efficiencies fall, bad times are had by all

i dont have access to e85 where i live, or else i would already gone down that road. best case scenario is to build the block and see how far pump can take this thing


I am very curious as to how my setup compares to other similar setups. i too am running a solid 18psi from 3400-6700 rpms. it feels good, smooth and linear. i really like this turbo, i just wish i had an ej257 or 207
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Old 07-19-2012, 04:39 PM   #23
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Quote:
Originally Posted by northman View Post
I call BS. Went from a VF to a Dom 1.5, the Dom has much more power potential. Went from a nearly maxed-out 300 whp to 355 whp with room to push it later if needed. I'm holding a flat 18 psi out to redline, no VF does that.

The Dom 1.5 is not a big power producing turbo on pump. It drops off even more at the top than the 2.5. Your better off with one of the higher quality 20g variance, than the 1.5.

Quote:
Originally Posted by renegadeSTi View Post
I haven't seen a dyno sheet from a 3" inlet and I would like too but soon I will see my own 3" inlet Dom 1.5XTR at about 6,000 ft altitude with E-85. I hope I can get my 400WHP mark with the upgrades I have. I'm wondering if the 3" inlet will help spool any.

.

The 3" inlet actually hurts spool with a stock location setup. 2.4" is the way to go.

Last edited by Fierysun; 07-19-2012 at 04:46 PM.
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Old 07-19-2012, 07:51 PM   #24
bswilmington
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Both setup identical except for turbo. Dom 1.5 10cm 2.4" vs stock VF39 both on meth. Its kinda apples to oranges (VF is maxed out, Dom 1.5 is just starting to wake up) as VF is 25psi tapering to 15psi and Dom 1.5 is solid 20 psi and it will need higher boost to shine but limited by fuel when tuning was done. Both are 3rd gear so spool is little late on both and I gain couple hundred RPMs later by changing cam timing on Dom 1.5 so dont get to caught up in later spool. VF39 tune made 322whp on dynojet SAE correction, havent dynoed Dom 1.5 yet. Both of these logs are uncorrected as I didnt record temps of VF run.

Major mods is GS 38mm EWG using 4port boost control, Perrin big maf with velocity stack, Invidia dp, ebay exhaust, stock long block with stock TGV, meth, lightweight pulley and ACT streetlight flywheel, GS PnP manifold, turbo inlet.

As you can see after 4800rpm the Dom 1.5 leaves the VF39



Sorry not trying to thread jack you there, just wanted to show comparision of VF39 to Dom 1.5

Last edited by bswilmington; 07-19-2012 at 07:59 PM.
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Old 07-19-2012, 08:03 PM   #25
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Looks like a good safe tune. I've ran the dom 1.5 at 26psi on a built 2.5, made right around 400/410 on E. On pump we made it to 22.5lbs at I want to say it was 360/360. This turbo flows a whole lot more than a vf39, take it to altitude and there is no comparison.
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