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10-07-2007, 12:04 AM | #1 |
Scooby Specialist
Member#: 58210
Join Date: Mar 2004
Chapter/Region:
TXIC
Location: NW Houston
Vehicle:2004 35r STi 186mph - standing mile! |
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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10-07-2007, 01:31 AM | #2 |
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Member#: 83790
Join Date: Mar 2005
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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? |
10-07-2007, 09:44 AM | #3 |
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Join Date: Mar 2003
Chapter/Region:
MAIC
Location: Milton Keynes, UK
Vehicle:96 3MI Racing search FIRST, then PM!!! |
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. |
10-07-2007, 09:57 AM | #4 |
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Join Date: Apr 2005
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Tri-State
Location: PA / Element Tuning
Vehicle:2005 STI.UR gt4088r E85 pro comp sti |
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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10-07-2007, 11:25 AM | #5 |
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Tri-State
Location: New Jersey
Vehicle:97 Supra TT SOLD - 35r bug/hawkeye |
crazy setup but......only 483 on 25lbs? isnt that kinda low?
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10-07-2007, 11:30 AM | #6 |
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Join Date: Sep 2004
Chapter/Region:
TXIC
Location: Houston, TX
Vehicle:1996 Nissan 240sx SE Uh yeah it's Blue. |
Stock STI's dyno at about 210-220 on this dyno. For reference.
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10-07-2007, 11:40 AM | #7 |
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South East
Location: Atlanta,GA
Vehicle:4 Making them faster then anyone else. |
somethings not right, shouldn't fall of that hard up top.
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10-07-2007, 12:10 PM | #8 |
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MAIC
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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 |
10-07-2007, 01:27 PM | #9 |
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MWSOC
Location: Brownsburg, IN
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Those are some nicely ported TGV's, Good work.
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10-07-2007, 01:41 PM | #10 | |
Scooby Specialist
Member#: 58210
Join Date: Mar 2004
Chapter/Region:
TXIC
Location: NW Houston
Vehicle:2004 35r STi 186mph - standing mile! |
Quote:
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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10-07-2007, 01:51 PM | #11 |
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Join Date: Oct 2003
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TXIC
Location: Houston
Vehicle:2015 Mustang GT |
Nice to see this car back in action
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10-07-2007, 02:03 PM | #12 |
Scooby Specialist
Member#: 58210
Join Date: Mar 2004
Chapter/Region:
TXIC
Location: NW Houston
Vehicle:2004 35r STi 186mph - standing mile! |
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 AFR’s 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 STI’s 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. |
10-07-2007, 02:32 PM | #13 |
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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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10-07-2007, 07:55 PM | #14 |
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Member#: 49175
Join Date: Nov 2003
Vehicle:2004 STI WRB |
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. |
10-07-2007, 10:28 PM | #15 |
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NWIC
Location: Pasco, WA
Vehicle:sold to a good bud awaiting next car |
4th gear dyno run?
what was the CF on the dyno? |
10-08-2007, 02:39 PM | #16 |
Scooby Specialist
Member#: 58210
Join Date: Mar 2004
Chapter/Region:
TXIC
Location: NW Houston
Vehicle:2004 35r STi 186mph - standing mile! |
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10-08-2007, 03:02 PM | #17 |
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TXIC
Location: Boise, ID
Vehicle:1995 Firehawk #456 2009 FXT VF52/E85 |
Paul, what are the equations with alky?
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10-08-2007, 06:46 PM | #18 |
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TXIC
Location: houston
Vehicle:2005 sti wr blue |
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. |
10-08-2007, 06:52 PM | #19 |
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^^ the guy with the "accent" , aka Chris, knows his isht
they stand by their work 100% |
10-08-2007, 10:04 PM | #20 |
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Chapter/Region:
Tri-State
Location: Precision Tuning
Vehicle:2004 2.5 Hybrid 6spd Rotated Manifold/35R |
I honestly can't imagine what it would feel like driving that beast. Grats on those numbers.
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10-08-2007, 11:25 PM | #21 |
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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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10-09-2007, 01:31 AM | #22 |
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Location: RIP Seannie 6/16/07
Vehicle:2005 STi/2012 GTR TXIC's most loved |
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10-09-2007, 01:44 AM | #23 |
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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 |
10-09-2007, 10:53 AM | #24 | |
Scooby Specialist
Member#: 58210
Join Date: Mar 2004
Chapter/Region:
TXIC
Location: NW Houston
Vehicle:2004 35r STi 186mph - standing mile! |
Quote:
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10-09-2007, 09:38 PM | #25 |
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Location: Houston, TX
Vehicle:04 STi Blue |
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 else’s 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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