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Old 10-07-2007, 12:04 AM   #1
JustA4
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Member#: 58210
Join Date: Mar 2004
Chapter/Region: TXIC
Location: NW Houston
Vehicle:
2004 35r STi
186mph - standing mile!

News EngineLogics Built Motor + GT35r

Here's my graphs of a conservative tune done on a Motor/Tune by EngineLogics. The car pulls VERY hard. Was able to run 179.8 mph in a standing mile competition this weekend w/a stiff headwind (believe it's capable of 185). For reference, the C6 Z06s were in the high 160s in the same standing mile. The exhaust pulse can be felt over 6' from the rear of the car, it's amazing.


Here's my putz around town graph: Pump w/Alky 25psi



And here's for when I'm in a hurry: C16 w/Alky 27psi


Engine Parts List

Short Block:
EngineLogics Chrome Molly Flanged 3 step Iron Ductile Sleeves
99 mm Forged CP Pistons with 8.8:1 compression ratio
Pauter Connecting Rods
ACL Racing Bearings
10000 RPM Balanced Crank
Arp Block Stud Kit
EngineLogics Pinned 2.5 Block
EngineLogics High Volume Oil Pump

Cylinder Heads:
EngineLogics Prepped 37 mm NicleVac Intake valves
EngineLogics Prepped 33 mm Inconel Exhaust valves
EngineLogics Profiled Intake and Exhaust cams
EngineLogics Titanium retainers and 68 lb Valve Spring Kit
EngineLogics Custom Made Adjustable Cam Gears
EngineLogics Port Job (Intake Flows 305 CFM Exhaust flows 235 CFM Airspeed in intake average is 345 FT/sec)
Gates Racing Timing Belt
Commetic Head Gasket
ARP Head Stud Kit
AVCS Removed

Intake Tract:
Tumblers Removed
Port Matched Tumblers to head
Port Matched Intake Manifold to Tumblers
Reshaped Intake Manifold Entry

Exhaust Tract
Perrin Equal Length Header
3" APS Single Tip Exhaust
Polydyn Ceramic Coatings
Tial 44mm Wastegate

Turbo:
EngineLogics Spec'd GT3584
Perrin Rotated Mount kit
Tial 44mm Bov
Perrin "Signature Edition" FMIC
DTEC Boost Controller

Fuel:
1635 cc Bosch
EngineLogics High Flow Fuel Rail Set with port contoured fittings
Walbro 255 Fuel Pump
Aeromotive Rising Rate Adjustable Fuel Pressure Regulator set at 43.5 base pressure
SMC single nozzle Alky Injection kit with # 10 nozzle

Engine Management:
Hydra Nemesis W/ Brad's (Silvialost) Custom Tuning

Have a few pics I took of some of the custom work Chris did during the build:

Adjustable Cam Gears:


Pinned the block:


TopFeed Fuel Rails:


Ported Tumblers:
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Old 10-07-2007, 01:31 AM   #2
Remnex
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Are the cams off or not dialed in? I would think with all that motor work you would carry torque and HP till redline no problem. I have an 07 and I hold HP and torque way longer on a 35r.

Any ideas, or am I off base?
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Old 10-07-2007, 09:44 AM   #3
Homemade WRX
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search FIRST, then PM!!!

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cams, intake, manifold or head work could be the cause from what I see on the list...
personally I think its cams or just their adjustment...

Last edited by Homemade WRX; 10-09-2007 at 09:01 PM.
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Old 10-07-2007, 09:57 AM   #4
blowbyu24
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E85 pro comp sti

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awesome set up!! throw on another fuel pump and turn the boost up to 35 with c16 and see what happens...congrats on a great set up!
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Old 10-07-2007, 11:25 AM   #5
BuggeyEYED
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crazy setup but......only 483 on 25lbs? isnt that kinda low?
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Old 10-07-2007, 11:30 AM   #6
H-Town Wrx
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Stock STI's dyno at about 210-220 on this dyno. For reference.
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Old 10-07-2007, 11:40 AM   #7
Badazzcr
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4 Making them
faster then anyone else.

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somethings not right, shouldn't fall of that hard up top.
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Old 10-07-2007, 12:10 PM   #8
smokey07
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^^ what he said...... annnnd im quite sure it aint runnin away from a c6Z at any point over 100...

badass car tho no doubt
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Old 10-07-2007, 01:27 PM   #9
WRXCJS
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WRB

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Those are some nicely ported TGV's, Good work.
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Old 10-07-2007, 01:41 PM   #10
JustA4
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2004 35r STi
186mph - standing mile!

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Quote:
Originally Posted by smokey07 View Post
^^ what he said...... annnnd im quite sure it aint runnin away from a c6Z at any point over 100...

badass car tho no doubt
I wouldn't be soo sure, I might agree with you more in the 140+ range. The numbers will be posted along side the car make/model in a few weeks. Only speeds given are those at the end of the Mile. No breakdown to tell where I must be blowing the doors off the C6 Z enough to still beat them by over 10mph at the end of the mile. Don't underestimate our Lil Subbies. I wasn't "launching" the car off the line. C6Z's are suweeet, just posted their averages for reference to speeds being attained yesterday.

The car is going back on the dyno for some cam adjustment. Texas Mile came up quickly and we weren't able to do all the adjustment/tuning we'd like. Car is conservative, but VERY powerful.
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Old 10-07-2007, 01:51 PM   #11
battousai
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2014 BRZ
SWP

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Nice to see this car back in action
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Old 10-07-2007, 02:03 PM   #12
JustA4
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2004 35r STi
186mph - standing mile!

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Quote:
Originally Posted by BuggeyEYED View Post
crazy setup but......only 483 on 25lbs? isnt that kinda low?
Here's the graph of just C16 & 27pds boost:



All HP figures are supported with mathematical calculation.
Example:

516.6 WHP C16 Dyno Pull on Oct. 1, 2007

Temp. during final pull: 89 degrees

Barometric Pressure: 30.22

Humidity: 59%

To calculate the HP support at 68% duty cycle with 1635 cc Injectors, use the following calculation:

1.)Divide the injector size in cc by 10.50 to get injector size in lb. 1635 / 10.5 = 155.78 lb

2.)Multiply the injector size in lb with the injector duty cycle 155.78 * 0.68 = 105.93

3.)Divide the result with the B.S.F.C (Brake Specific Fuel Consumption) 105.93/.6 = 176.55 flywheel hp per injector

With an estimate of 27% drivetrain loss, the WHP can now be calculated:

1.)Multiply the flywheel Hp with 0.73 (27%) 176.55 * 0.73 = 128.88 wheel HP per Injector

Therefore 4 injectors at a 68% duty cycle will be able to produce 128.88 * 4 = 515.52 wheel HP (+/- 3% is OK)

NOTE: BSFC = NA engines use 0.5 and S/C or Turbo engines, use 0.6.(Turbo engines run lower AFRís than NA engines, therefore; a higher B.S.F.C. is required.



Why was a 27% drive train loss used?

A stock 2004 STI is advertised to have 300 HP flywheel.

The average WHP produced on a DynoDynamic dyno for 40+ bone stock STIís was 220 wheel HP.

220 divide by 300 = .73 which indicates 27%

Using this math calculation, you can tell when somebody cannot be make the power they're claiming. Would like to see people list duty cycle and fuel pressure used in their setups more often.
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Old 10-07-2007, 02:32 PM   #13
smokey07
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does all that mean it wants more boost??? and why does it fallllll sooo hard past 7k???
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Old 10-07-2007, 07:55 PM   #14
cpturbo
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WRB

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There must be some significant differences between the GT3582 with a .82 housing and this turbo (listed as a GT3584). What compressor wheel do you have and what exhaust housing A/R do you have?

Also, I highly recommend that you re-think your fuel pump set-up!!

Wow, nice car.
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Old 10-07-2007, 10:28 PM   #15
modaddict
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sold to a good bud
awaiting next car

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4th gear dyno run?

what was the CF on the dyno?
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Old 10-08-2007, 02:39 PM   #16
JustA4
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Join Date: Mar 2004
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Location: NW Houston
Vehicle:
2004 35r STi
186mph - standing mile!

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Quote:
Originally Posted by modaddict View Post
4th gear dyno run?

what was the CF on the dyno?
4th gear pulls & The CF (Correction Factor) for the dyno run was zero. The atmospheric correction factor was 1.043
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Old 10-08-2007, 03:02 PM   #17
Big_Hitter
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2011 Ferd Ranger 4x4
2009 FXT Stage2

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Paul, what are the equations with alky?
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Old 10-08-2007, 06:46 PM   #18
young j
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wr blue

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impressive! i didnt know the guys at "EL" build custom engines.
does anyone know if they can work on rotaries?
i called and the guy with the accent said yes but im still scheptical.
a bad tune will fry apex seals preety quick.
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Old 10-08-2007, 06:52 PM   #19
Big_Hitter
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2009 FXT Stage2

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^^ the guy with the "accent" , aka Chris, knows his isht

they stand by their work 100%
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Old 10-08-2007, 10:04 PM   #20
WRX4eva
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Location: Precision Tuning
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Rotated Manifold/35R

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I honestly can't imagine what it would feel like driving that beast. Grats on those numbers.
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Old 10-08-2007, 11:25 PM   #21
Remnex
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Something just isn't right. I can hit those numbers with no motor work other than a balance and forged pistons. The car falls on it's face after 6k. Why is that?
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Old 10-09-2007, 01:31 AM   #22
texas05sti
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Quote:
Originally Posted by smokey07 View Post
^^ what he said...... annnnd im quite sure it aint runnin away from a c6Z at any point over 100...

badass car tho no doubt
I was also at the Mile this weekend....the stock C6 ZO6 that was pitting with us ran a max of 168. Paul's car is nuts.
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Old 10-09-2007, 01:44 AM   #23
AZScoobie
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netcom.com

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Great results at the mile. However. Something is not right up top. I think some time adjusting the cams will help. Maybe the tune. But its falling super hard up top. Lots of lag, a big hit and then it falls down hard. I think some more time spent with tuning could net some serious power below and above the curve.

Cya

Clark
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Old 10-09-2007, 10:53 AM   #24
JustA4
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Join Date: Mar 2004
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2004 35r STi
186mph - standing mile!

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Quote:
Originally Posted by AZScoobie View Post
Great results at the mile. However. Something is not right up top. I think some time adjusting the cams will help. Maybe the tune. But its falling super hard up top. Lots of lag, a big hit and then it falls down hard. I think some more time spent with tuning could net some serious power below and above the curve.

Cya

Clark
Thanks. We're going to play with the Cams now that we have some more time to use the dyno.
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Old 10-09-2007, 09:38 PM   #25
EngineLogics
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Blue

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First I would like to thank JUSTA4 for trusting us to do the engine built for him. It can not be easy to give your pride and joy to someone that does not follow main stream in their engine builds.

Secondly we would like to thank the Subaru community for the great response and positive comments towards this post.

We kept in mind that our customer does not have an unlimited budged so when time came to experiment we did so with caution, approval and full customer understanding of what might happen if things go wrong. We would rather caution on the side of safe than blowing things up at someone elseís expense.

Many things on this engine setup are not standard or average, especially the cam setup. With absolute minimum time to our availability we chose to caution on the safe and moderate side. We wanted to see how the engine reacts under actual race conditions and are very pleased with the result. Peak power at 8000 rpm is not always desirable; it is therefore the objective to have various setups for various events.

In the not too distant future we will be moving to a more aggressive cam timing setup and we believe that the engine will respond well. Although we would like to see the car go a lot faster we do not live in a dream world and know that the aerodynamics effects is catching up rapidly.

Cost is always the determining factor of how hard and fast you want to play
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