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Dyno Numbers
Last Edited 3/02/11
I figured we should have a place to post and/or discuss our Dyno #s. As people add #s, we can add them to this first post. It will be cool to see how things change as people make mods etc. Latest Mods/numbers at the top of each entry. All trusted or verified numbers are welcome. Please use this format when submitting your #s Name: Real Name (Handle) Car: (Yr Model) Mods: (Power Mods) Wheel HP: (XXX) @ (YYYY) RPM Wheel Torque: (TTT) @ (ZZZZ) RPM Dyno: (type @ Company Date Time) _______________________________________________ Alphabetical by owner name, newest to oldest Name: Berndt Jung (dirtyWRX) Car: 2002 WRX Mods: K&N intake, BPM uppipe, MRT turboback, IHI VF30, S-Squared ECUTek flash, 14.5 PSI Wheel HP: 220 @ 6750 RPM Wheel Torque: 190. @ 5500 RPM Dyno: Mustang @ S-Squared Motorsports 06/1/04) Mods: K&N intake, BPM uppipe, MRT turboback, IHI VF30 Wheel HP: 189.3 @ 6000 RPM Wheel Torque: 173.6 @ 4750 RPM Dyno: Mustang @ S-Squared Motorsports 06/1/04) ----- Name: Brandon Wade (U53D) Car: 2005 STI Mods: Cobb AccessPort Stage 2, Cobb TBE, Perrin Cold Air Intake Wheel HP: 263.1 @ 7000 RPM Wheel Torque: 288.3 @ 3500 RPM Dyno: Mustang @ S-Squared Motorsports 08/17/05 12:38 PM ----- Name: Cody Car: 2003 WRX Wagon Mods: Crucial UP, DP and High-Flow catted Mid, Borla Hush CBE, Heat Wrapped Stock Headers, IC Y-Pipe, One step colder Denso Irridium plugs (with like 50K miles on them), Hallman Pro RX MBC (16.5 PSI on the stock turbo), Walbro Fuel Pump, Intake Silencer Delete, Omori Boost & (dead) EGT Gauges, Cobb Protuned by Equilibrium Tuning Wheel HP: 219.8 @ 6260 RPM Wheel Tq: 224 @ 3860 RPM Dyno: Equilibrium Tuning Road Dyno 6/09??? Mods: Crucial UP & DP, Borla Hush CBE, K&N Drop-In, Heat Wrapped Stock Headers (3rd Cat remains), Intake Silencer Delete, Omori Boost & EGT Gauges, Cobb Protuned by Equilibrium Tuning Wheel HP: 208.3 @ 6370 RPM Wheel Torque: 210.8 @ 4050 RPM Dyno: Equilibrium Tuning Road Dyno (very comparable to the Gruppe-S Mustang Dyno) 08/14/05 ----- Name: Dan Watt (R4ND0M_AX3) Car: 2005 WRX STi Mods: Cobb StreetTUNER (work in progress), Invidia V2 Bellmouth DP, Invidia N1 cat-back (not race), Snow tires and wheels Wheel HP: 231 @ 5750 RPM Wheel Torque: 261 @ 3250 RPM Dyno: Mustang @ DB Tuned 01/28/06 8:57 AM ----- Name: Dean B. (Dean) Car: 2004 WRX STI Mods: Injen CAI, GT Spec headers, VF43, BPM Turbo Back (Cat in Mid pipe), ACT StreetLite Flywheel & Unspring 6 puck clutch, 1 Step colder plugs, Walbro Fuel Pump, Cobb Pro/Street-Tune Wheel HP: 274.4 @ 5000 RPM Wheel Torque: 316.8 @ 3750 RPM Dyno: Mustang @ GST Motorsports 01/11/06 20:36 Car: 2002 WRX Mods: S-Squared UP, BPM Turbo Back (Cat in Mid pipe), S-Squared ECUTek STX Legal(Stock Boost) Flash, Kool Blue AF) Wheel HP: 184.8 @ 5750 RPM Wheel Torque: 185.4 @ 3250 RPM Dyno: Mustang @ S-Squared Motorsports 04/16/04 19:21 Mods: Megan Racing Cat Back, Kool Blue AF) Wheel HP: 172.2 @ 5750 RPM Wheel Torque: 177 @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 04/03/04 17:59 ----- Name: Derick D. (Joeyy) Car: 2005 WRX Wagon Mods: K&N air filter, Cobb up pipe, Cobb TBE, Walbro fuel pump, Cobb AP, ProTune by db tuned. Wheel HP: 221.7 @6000 RPM Wheel Torque: 218.2 @ 4250 RPM Dyno: Mustang @ db tuned 03/12/2007 10:34 A.M ----- Name: Eric B (qksubi) Car: 2006 STI Mods: Cobb TBE Catless,Injen intake WR,Cobb Protune Wheel HP: 272.8 @ ???? RPM Wheel Torque: 299.8 @ Dyno: Mustang dyno @Gruppe-S ??/??/???? hh:mm?m ----- Name: James. R (flatline_fab) Car: 2004 wrx sedan Mods: Custom gt30r turbo kit with 44mm tial wastegate, P.E. 800cc injectors, custom fuel rails, custom intake, blitz fmic, borla hush catback system Wheel HP: 300.4 @ 6750 RPM Wheel Torque: 250.5 @ 5750 RPM Dyno: mustang dyno @gruppe-s 5/18/2005 7:20 pm ----- Name: JC (JC) Car: 2003 EVO Mods: TBE w/ high flow cat, Walbro Fuel Pump, GST boost pill, Tune by Brian @ GST Wheel HP: 254 @ 5800 RPM Wheel Torque: 251 @ 3800 RPM Dyno: Mustang @ GST Motorsports 03/20/08 16:40 Car: 2000 2.5RS Mods: Cobb Tuning CAI, Mr. Josh LW Pulley, Exedy Clutch & Lightweight flywheel, MRT headers & cat, Greddy EVO catback Wheel HP: 132.1 @ 5750 RPM Wheel Torque: 134.6 @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 07/17/04 ----- Name: Jon (jcjentz) car: 2005 lgt limited Mods: perrin tmic-perrin tbe-aem cai-cobb v2 stage2 w/modified throttle map Wheel HP: 243.6 @5750 RPM Wheel Torque: 294.1 @2500 RPM Dyno: Mustang @ FineLineImports Santa Rosa Ca. (tuned by Miles) ----- Name: Matt M. (sonicsuby) Car: 2005 WRX Wagon Mods: Cobb AccessPort(ProTuner S-Squared)tune, Perrin up-pipe Wheel HP: 184.3 @ 5500 RPM Wheel Torque: 187.3 @ 4500 RPM Dyno: Mustang @ S-Squared Motorsports 08/24/05 2:41 PM ----- Name: Matt R. (Mattr) Car: 2004 STi Mods: Cobb Accessport V 2.0, Injen CAI, Invidia Catless TBE, Gruppe-S Header (Coated) Wheel HP: 286 @ 5000 RPM Wheel Torque: 318 @ 3500 RPM Dyno: Mustang @ GST Tuning, Hayward, CA 12/3/07 11:00 AM Mods: EcuTek reflash, Injen CAI, Invidia Catless TBE, Gruppe-S Header (Coated) Wheel HP: 265.5 @ 5000 RPM Wheel Torque: 317 @ 3500 RPM Dyno: Mustang @ GST Tuning, Hayward, CA 12/30/06 11:00 AM Mods: EcuTek Reflash, Injen CAI, Invidia catless TBE Wheel HP: 267 @ 5995 RPM Wheel Torque: 287.9 Torque @ 3750 RPM Dyno: Mustang @ Subaru Specialists Motorsports 01/21/05 14:00 Mods: EcuTek Reflash, ITG Air Filter Wheel HP: 245 @ 5850 RPM Wheel Torque: 251 Torque @ 3700 RPM Dyno: Mustang @ Subaru Specialists Motorsports 12/09/04 11:30 AM Mods: ITG Air Filter 230 WHP @ 5750 RPM 236 Torque @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 04/03/04 5:36 PM ----- Name: Mike H. (MikeSTI) Car: 2004 STI Mods: Cobb Accessport Stage 2, Perrin TBE, ITG Air Filter Wheel HP: 265.9 WHP @ 5250 RPM Wheel Torque: 281.9 Torque @ 4000 RPM Dyno: Mustang @ Subaru Specialists Motorsports 12/11/04 1:18pm Mods: ITG Air Filter Wheel HP: 213.1 WHP @ 5750 RPM Wheel Torque: 221.0 Torque @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 04/03/04 5:15pm ----- Name: Mike K (MikeK) Car: 2005 STI Mods: APS Intake, APS Inlet tube, APS 525 FMIC, APS BOV, GM Boost solenoid, Fuel pump, Element GT52 turbo, PE 850 injectors, Catless TBE 91 Octane Wheel HP: 329.3 @ 6750 RPM Wheel Torque: 318.5 @ 4500 RPM Dyno: Mustang @ GST Motorsports 12/12/07 12:52 p.m. 100 Octane Wheel HP: 380.7 @ 6750 RPM Wheel Torque: 388.1 @ 4750 RPM Dyno: Mustang @ GST Motorsports 12/12/07 5:06 p.m. Mods: APS Intake, APS Inlet tube, APS 525 FMIC, APS BOV, GM Boost solenoid, Fuel pump, FP Green 8cm2 exhaust housing, PE 850 injectors, Catless TBE 91 Octane Wheel HP: 315.3 @ 6250 RPM Wheel Torque: 321.4 @ 4750 RPM Dyno: Mustang @ GST Motorsports 4/26/07 5:40 p.m. 100 Octane Wheel HP: 369.5 @ 6000 RPM Wheel Torque: 371.9 @ 5000 RPM Dyno: Mustang @ GST Motorsports 4/26/07 6:25 p.m. Mods: Cobb TBE + GT Spec headers + pro-tune Wheel HP: 268.0 @ 5250 RPM Wheel Torque: 303.0 @ 3750 RPM Dyno: Mustang @ Gruppe-s 11/12/05 8:48 p.m. Mods: Cobb TBE + pro-tune Wheel HP: 257.3 @ 5500 RPM Wheel Torque: 279.7.0 @ 3500 RPM Dyno: Mustang @ Gruppe-s 11/12/05 10:24 a.m. Mods: Stock Wheel HP: 221.8 @ 5500 RPM Wheel Torque: 227.0 @ 4500 RPM Dyno: Mustang @ Gruppe-s 8/6/05 10:25 a.m. Car: 2004 WRX Mods: APS Uppipe, Cobb turboback, samco IC Hoses, Cobb stage 2 reflash Wheel HP: 190.4 @ 6500 RPM Wheel Torque: 174.1 @ 3750 RPM Dyno: Mustang @ S-Squared Motorsports 07/17/04 12:59pm Mods: APS Uppipe, Cobb turboback, samco IC Hoses, Cobb stage 2 reflash Wheel HP: 230.3 @ 6300 RPM Wheel Torque: 217.2 @ 4500 RPM Dyno: Mustang @ Cobb Tuning 04/09/04 5:25pm Mods: Stock Wheel HP: 186.3 @ 5900 RPM Wheel Torque: 182.2 @ 4100 RPM Dyno: Mustang @ Cobb Tuning 04/09/04 AM ------ Name: Mike T (Evo Mike) Car: 2004 Evo VIII Mods: 97 octane, Gt3076R, Forced Fed Manifold/downpipe/race pipe, Tial 38mm waste gate, lower intercooler piping, Blitz sbcID-III EBC, Greddy Evo 2 cat back, HKS 264/272 Cams & gears, ARP head studs, Upg Valve springs, retainer set, Toda head gasket & Timing belt, Autronic EMS, upg. Fuel Pump, Perrin Fuel Rail, 780 cc injectors, Tuned by Gruppe-s (Mike W) Wheel HP: 350.7 @ 6750 RPM Wheel Torque: 292.0 @ 5500 RPM Dyno: Mustang @ Gruppe-S Tunning 08/25/05 2:13pm Mods: Helix downpipe, helix cat delete, Borla catback exhaust, SBC ID III boost controler, HKS 264/272 Cams, HKS Cam Gears, UTEC, Fuel Pump, Perrin Fuel Rail, Head Studs, Head Gasket Wheel HP: 259.1 @ 6500 RPM Wheel Torque: 256.5 @ 4000 RPM Dyno: Mustang @ Gruppe-S Tunning 09/25/04 11:56pm ------ Name: Nick (doubleurx) Car: 2005 STI Mods: Greddy EVO 2 cat back, Invidia downpipe, GT spec II headers, SBR GT-12 Turbo, Perrin Modded injectors, Walbro fuel pump, Perrin FMIC, Perrin Short Ram intake, ECUTEK tuned by Subaru Specialists Wheel HP: 337.8 @ 5750 RPM Wheel Tq: 331.4 @ 5000 RPM Dyno: Mustang @ Subaru Specialists 4/23/05 10:00 a.m. Mods: Invidia Turboback, GT spec II headers, Injen Intake, Ecutek reflash by Subaru Specialists. Wheel HP: 269.6 @ 5000 RPM Wheel TQ: 310.0 @ 3750 Dyno: Mustang @ Subaru Specialists 1/28/05 2:13 p.m. Mods: Ecutek reflash, Invidia turbo back Wheel HP: 257.1@5500 Wheel Torque: 277.3 @3750 Dyno: Mustang @ Subaru Specialists Motorsports 12/10/04, 1:30 pm Car: 2003 WRX (old car) Mods: S-Squared ReFlash on Vishnu Stage 2 parts Wheel HP: 230.4 @ 7000 RPM Wheel Torque: 213.5 @ 4750 RPM Dyno: Mustang @ S-Squared Motorsports 05/22/04 2:00pm Mods: Vishnu Stage 2 w/ Vishnu components Wheel HP: 233.3 @ 6450 RPM Wheel Torque: 216 @ 5400 RPM Dyno: Dyno Dynamics @ Vishnu Performane Systems 10/21/03 11:00 a.m. ---- Name: Nick (bign) Car: 05 STI Mods: Linky Wheel HP: (318 ) @ (6000) RPM Wheel Torque: (332) @ (4750) RPM Dyno: Mustang @ DB TUNED 6/9/10 11:48 a.m. ---- Name: Rob Dietrich (WRXRallyBlue) Car: 2002 WRX Wagon Mods: protune, intake, turbo inlet, tmic w/hoses, crank pulley, 1-step colder plugs, mbc, up, dp, catback Wheel HP: 202.6 @ 6960 RPM Wheel Torque: 208.4 @ 3850 RPM Dyno: Equilibrium Tuning Road Dyno 8/6/06 ---- Name: Phil (Dayofpain) Car: 05 Sti Mods: MadtyteJdMYO Wheel HP: 372.2 @ 6000 RPM Wheel Torque: 377.7 @ 4750 RPM Dyno: Mustang @ GST Motorsports ---- Name: Ryan T(ryan4601) Car: 2004 Subaru WRX Mods: Hydra Nemisis stand alone EMS, 2.5L JDM FXT long block, Perrin Rotated mount kit, Garrett GT3076 .63A/R, Perrin FMIC, Tial 44mm WG, Tial BOV, TGVs deleted, Helix Headers, Perrin fuel rails, helix 860cc injectors, Perrin crank pully, Ported wrx throttle body (proflow design), Borla cat back exhaust, Custom Tune by Andy at Speed Element. Wheel HP: 341 @ 6300 RPM's Wheel TQ: 304 @ 5200 RPM's Dyno: Dyno Dynamics Dynamometer, 02/09/07 Mods: Cobb AP, vf-34, blitz fmic, helix headers, up pipe & down pipe, greddy evo 2 cat back, sti 560 cc injectors, perrin fuel rails, perrin crank pully, Blitz SBC ID3 boost controller, Perrin Intake, TGV Deletes, Tuned by Gruppe-s (Mike W) Wheel HP: 279.4@6500(91 Octane), 289.9@6500(96 Octane) Wheel TQ: 247.0@5750(91 Octane), 258.5@5750(96 Octane) Dyno: Mustang @ Gruppe-S tuning 10/28/05 3:47pm(91) 4:36pm(96) Mods: Cobb AP, vf-34, blitz fmic, helix headers, up pipe & down pipe, greddy evo 2 cat back, sti 560 cc injectors, perrin fuel rails, perrin crank pully, Blitz SBC ID3 boost controller, Perrin Intake, Tuned by Gruppe-s (Mike W) Wheel HP: 272.0@6500 Wheel TQ: 234.9@5750 Dyno: Mustang @ Gruppe-S tuning 08/19/05 3:57pm Mods: TXS UTEC, vf-34, blitz fmic, sti RA gear set, act lightened flywheel, helix headers, up pipe & down pipe, greddy evo 2 cat back, sti 560 cc injectors, perrin fuel rails, perrin crank pully. Wheel HP: 260.7@6000 Wheel TQ: 236.7@5000 Dyno: Mustang Dynometer @ Gruppe S tuning Mods:Turbo XS UTEC, avo garrrett t-28 turbo, perrin intake, perrin turbo inlet tube, helix headers, helix up pipe, helix down pipe, greddy evo exhaust, perrin fuel rail system, sti "pinks" injectors, turbo xs hyperflow top mount IC..... Wheel HP: 248.9 HP @ 6000 rpms Wheel Torque: 222.4 @ 5250 rpms Dyno: Mustang @ S-Squared Motorsports 04/03/04 4:54pm ----- Name: Scott Perry (sperry) Car: 2002 WRX Mods: EJ257 short block, ported/polished WRX heads, TD05-20G turbo, PE800 injectors, Walbro 255lph fuel pump, Perrin fuel rails, Perrin BigMAF intake, Perrin FMIC, Gruppe-S jet-coated headers, Vishnu flex uppipe, Invidia TBE (catless/resonated). Wheel HP: 289.3 @ 6000 RPM Wheel Torque: 286.0 @ 4500 RPM Dyno: Mustang @ Gruppe-S Mods: Vishnu Stage 1 (Vishnu flex up-pipe & turbo back, UniChip/EFI, underdrive/lightened crank pulley, TurboXS MBC @ 15psi) Wheel HP: 186.2 @ 6250 RPM Wheel Torque: 191.9 @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 4/3/04 6:12pm Car: 1994 Subaru SVX Mods: n/a Wheel HP: 134.3 @ 5500 RPM Wheel Torque: 148.0 @ 4500 RPM Dyno: Mustang @ Subaru Specialists Motorsports 12/11/04 ----- Name: Steve M. (Kostamojen) Car: 1995 Subaru Impreza L Mods: MY2000 2.5 Conversion with MY2000 Tranny, WRX rear diff w/ LSD, Custom full 2.5" exhaust (Magnaflow muffler), Injen Intake, Lightweight Flywheel (unorthodox?) and ACT Clutch Wheel HP: 178 @ 5200 RPM Wheel Torque: 193 @ 4600 RPM Dyno: July 30, 2004 Road dyno (? not sure, ill ask Adam) Mods: MY2000 2.5 Conversion with MY2000 Tranny, WRX rear diff w/ LSD, Custom full 2.5" exhaust (Magnaflow muffler), Injen Intake, Lightweight Flywheel (unorthodox?) and ACT Clutch, Converted to RWD Wheel HP: 140.6 @ 5400 RPM Wheel Torque: 150.4 @ 4750 RPM Dyno: Dynojet @ September 11, 2004 ATP ---- Name: Sue (CaliforniaSue) Car: 2002 WRX Wagon Mods: Megan Racing Cat Back, ECUTek tuned Wheel HP: 200.9 @ 6000 RPM Wheel Torque: 195.3 @ 4500 RPM Dyno: Mustang @ GST Motorsports 01/09/2007 10:40 am ---- Name: Tyson K. (TysonK) Car: 2003 WRX Mods: Stock(not even intake silence remvoal) Wheel HP: 171 WHP @ 5750 RPM Wheel Torque: 172 @ 4000 RPM Dyno: Mustang @ S-Squared Motorsports 04/03/04 7:51pm |
Name: Matt
Car: 04 STi Mods: ITG Air Filter (That's all) 230 WHP @ 5750 RPM 236 Torque @ 4000 RPM S-Squared 04\03\04 16:36 |
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Name: Tyson
Car: 03 WRX Mods: Stock(not even intake silence remvoal) 171 WHP @ 5750 RPM 172 Torque @ 4000 RPM S-Squared 04\03\04 7:51 For those of you not there mine and Matt's numbes were a bit surprising. |
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Name: Ryan
Car: 04 wrx Mods:.....hmmmm an embarassing amout considering matts sti nearly kicked my ass...oh well....here they are: Turbo XS UTEC, avo garrrett t-28 turbo, perrin intake, perrin turbo inlet tube, helix headers, helix up pipe, helix down pipe, greddy evo exhaust, perrin fuel rail system, sti "pinks" injectors, turbo xs hyperflow top mount IC..... Max Power: 248.9 HP @ 6000 rpms Max Torque: 222.4 @ 5250 rpms dyno: ss @ 4/3/2004 4:54pm |
It'll be cool to see what Scott's put's down after next weekend at ESX, and after Ryan's gets retuned at SSquared...I predict big-time power from both.
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Name: Scott Perry
Car: 2002 WRX Mods: Vishnu Stage 1 (Vishnu flex up-pipe & turbo back, UniChip/EFI, underdrive/lightened crank pulley, TurboXS MBC @ 15psi) Wheel HP: 186.2 @ 6250 RPM Wheel Torque: 191.9 @ 4000 RPM Dyno: S-Squared Motorsports' Mustang Dyno 4/3/04 6:12pm |
Name: Mike
Car: 04 STi Mods: ITG Air Filter 213.1 WHP @ 5750 RPM 221.0 Torque @ 4000 RPM S-Squared 04\03\04 5:15pm I guess the real questions is why is mine lower? maybe a S2 guy could tell us what our max. boost was it could help? along with the other many factors type of gas, change in tire size/ware, ecu performance/air fuel ratio, knock, timing and many other factors maybe a few degees warmer at the time of my run? I dont know? Just hate to think if I get a turbo back and I produce 260 at the wheels when the turbo back claims to provide 25-30 hp would I credit the +40 hp gain to the mod or that I had a bad run on the dyno? |
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A little more heat soak, or load are my first guesses. |
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I may end up with two or three more numbers. Nate wants to do a before and after the headers, probably after the turbo back is on. It will also be interesting to see the stock maps vs STX maps when all is done. |
I think all those track days made matt's car happy :)
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Check out the Mustang Dyno Homepage,,,anything look familiar?
http://www.mustangdyne.com/ edit: and what is this? http://wahiduddin.net/calc/calc_hp_dp.htm |
What was the S-squared L running?
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They did not complete a "good" run when we were there.
As far As I Know. |
And here is the COBB site with the stage one that Matt had but was not making the advertised power. They had a stock WRX with 169hp and 174torque!
http://cobbtuning.com/wrx/power-s.html#stage2 http://cobbtuning.com/wrx/images/ae-stage1-dyno.jpg |
Although Cobb has a mustang dyno, theirs is tuned to give numbers more like dynojet and dyno dynamics. Cobb numbers are ~20hp higher then any other mustang dyno should report with the same car.
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As a numbers kind of guy who knows very little about this stuff, these numbers are all looking inconsistent and not logical. How are these dynos calibrated? It would be interesting to see the test done twice or more on the same car.
Scott, for some reason I thought the mods you have done would yield more whp compared to Tyson's stock unit. What's up with that? Educate me someone. Franz |
They did three pulls, one warm up and two recorded pulls.
The warm up was generally ~20hp lower then the higher of the two recorded pulls because the engine is not taken up to redline. The other two recorded pulls, unless something went wrong, would generally be within 7-8mph from each other. This variance can be from a lot of things, but the lower number is usually gotten when the engine is super hot (everyone here is reporting the higher of their two numbers, I assume). Another factor of variance could possibly be the time of day and type of gas that is in the car. Tyson did his pulls after the sun went down, and a nice breeze picked up (but there is no way that explains why he pulled 21hp over what he should have). A theory about the Reno cars is that since there is not enough oxygen for your engines to ping, the ECU has advanced the timing so far ahead that its almost acting like a reflash. Then ya'll come down to 2500ft in elevation and your cars go nuts. As for Scott, we should look at his numbers after the ESX reflash and tune. I'm guessing that its the unichip that isn't helping as much as it should. Once we see some numbers before and after Scott's reflash/tune, I think we'll all be plesantly supprised :D |
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Tyson's and my numbers are very similar as should be expected since he is stock, and I have minimal mods. If you look at our graphs, they are very similar curves with mine just a couple ponits higher along the whole curve peaking slightly before his..
Scott's on the other hand is quite different and does not show the drop off at higher RPM. The plot of my second run is attached. The first is slightly lower, but similar in shape. |
Dean's right about my car. My tuning is really bad right now since I'm actually dumping a ton of fuel for air the unichip thinks I should be flowing that I'm not since I've had to remove some parts like my IC hoses, and for the boost I'm not running (my MBC is turned down a bit). That's prolly why I'm pulling all the way to redline... it's only up at the top end that my fuel map is correct for my airflow.
I'm hoping I'll be putting out about 200hp at the wheels once I'm tuned correctly. |
does the Mustang dyno record boost levels? This I think is the key and no one has answerd that. If Matt gets 230 @ 15psi and I only get 213 but maybe only @ 14psi I would think that would be the difference plain and simple.......................just wish I got more info on this sheet other then:
Max Power = Max Torque = but with out knowing if I'm acully getting "Max" boost or the many other factors I dont feel I got the "Max" of what I paid for :roll: |
Makes sense Scott and everyone else. What would 200whp translate to at the crank?
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nate from ss told me that dyno tuning is 180 and hour.....im planning on heading back there to get my car tuned out at some point in the near future. Nate told me that hopefully i should be able to pull closer to 250 at the wheels on 91 pump.
ryan |
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Mine idled at least 3 minutes before, I don't think that had much of an effect, the car hadn't been run before starting it and letting it idle, so I don't think the idle was a big deal. |
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But the engine temp sometime wasn't very high after the 1st real pull, so the second on was done right away. |
Hey guys,
just to answer a few questions about the dyno, what it can log, and temperature etc. Our dyno uses a digital weather station that compensates for temperature, humidity etc. So the readings throughout the day would be standardized (more info on that in the link that Tyson posted, btw good find Tyson) . Heat soak however is a large issue, we make sure to temp the engine/IC before every run to try to keep things as consistent as possible. The dyno cannot log boost, they have an option for it and after looking at it I preferred to use our deltadash software for any boost / timing logging as its going to be more accurate. We do have wideband afr logging with the dyno though. These are things we can do, but Saturday was a baseline only day, we can do more logging etc if you want, just give us a call and set something up. The strange thing is how some of the cars from Reno were producing larger numbers than average. I believe nick is spot on with his explanation on timing etc (the ecu may be very very eager to add timing at your elevation) but the only way to know for absolute is to run a log of the ecu timing on a Reno car. If dean doesn’t object maybe I will run his again before we start on the mod work and log timing etc and see where we are at. As far as Matt w the cobb stage one, despite that cobb's dyno is set to read a little higher from what I have been told.( most dyno manufacturers set the dynos to read closer to a dynojet for the US, mustang doesn’t, although the end user can request a custom config so that it does read a little higher. Dyno Dynamics does turn theirs up from the factory etc . ) But Matt also was in a front-end accident a while ago in which his timing covers were hit, we found later in the evening that he had what sounded like a very out of adjustment couple of valves on the passenger side head, which could have a great deal to do with why his car reads low. But.... a stock wrx on a factory calibration produces between 150-155 HP on a mustang dyno on average so that actually puts Matt’s car about where it should be. Oh and for those who want to know, the drivetrain losses on a wrx are approx 75HP, so a 150 atw is 225 at the crank. Any other q's let me know, I hope everyone enjoyed the trip to the shop. One thing not to forget though, every car will read slightly different, I have seen throughout the years "gifted" cars that put down more power than they should have stock, although I don’t think Dean's and Tyson's cars were (I believe it has more to do w the elevation etc) that could be the case w the STI's as their ecu's are tuned more on the ragged edge to begin w. Thanks, -Nate |
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I'm pretty convinced the timing advance is the most likely culprit. As long as we did not cause any extended knock on the drive down, the ECU would have no reason to start retarding it. Wheras all the guys racing around in the Sac. heat for the past week were probably not pegged in advance. |
Those are my thoughts exactly,
I will run a log w it on the dyno at the same time so we see where we land. -Nate |
so Nate would it also help to reset the ECU before we come down for other dyno's to try to keep the ECU settings close to the same each time? because everyone seems to consider my car a Cali car but I live in Reno......is my horse power even lower when I get home :?
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I will know better after I look at the logs from deans car,
it may possibly help, but when you reset the ecu you also reset the learnt correction factors, which take a little to get back up to good levels. I definitly think that the 10 HP difference your car had between other stock STI's ( 223 etc ) could have been in the ecu, fuel etc . but until we can see why the wrx's from up there were reading so high we wont have a for sure. I will keep you up to date on it, thx -Nate |
Thanks again for putting together the dyno day / BBQ! Good times!
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No prob Scott,
Thanks for the Buisness!! -Nate |
yah, thx so much for everything I had a really great time down there. Looking forward to any of those updates :D :D
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Nate (or anyone who knows),
I have a question about the dyno ... does it take into account the different gear ratios being used? For example, if there were 2 WRX's that produce identical power, but one had a close ratio gearbox, would the dyno take this into account and produce identical numbers for each? Or would the car with the close ratio gearbox appear to be more powerful? Actually now that I think about it, the WRX and the STi have different ratio gearboxes. If you were testing in 3rd gear in a WRX (a ratio of 1.366) and 4th gear in an STi (a ratio of 1.346) does this mean that the STis appear more powerful than they are compared to the WRX? Thanks! Mike. |
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How does it know the engine RPM? I didn't notice any other sensors being connected up (not that I could see much from outside of course)
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Scott, you are correct in your explination of the gear ratio etc, on our dyno we read timing from the crank pulley w an optical sensor, we mark your pulley w a reflective strip that the optical picks up as the pulley spins.
As far as the high reno wrx readings we have been getting, I did some more testing on deans car today, the car has been pulled in and out of the shop 5-6 times since the dyno day, but not driven any longer than that, then onto the dyno early this afternoon when I began testing. What I found was it looks as if the cars were knocking slightly on the dyno saturday night, as the timing was being pulled on deans car as soon as I put it on the dyno, but this does show how the wrx ecu learns. First run: ecu pulling timing like mad 154 hp 159 tq Second run: ecu started adding timing again at this point 157 hp 163 tq Third run: still adding 159 hp 163 tq Fourth run: still adding , getting close to knock though 161 hp 167 tq Fifth run: added as much as it could, car was starting to knock slightly, adv. mulitplier was very low. 162 hp 168 tq Sixth run: The ecu was now pulling timing back to get out of knock 158 hp 162 tq Seventh run: ecu stable 160 hp 165 tq I made a couple runs after this, all stayed the same, hp/tq figures were within fractions of the previous run. hope this helps! I know it was an interesting experiment for me. -Nate S-Squared |
That's awesome Nate! And thanks to Dean for letting his car be the test subject.
Now Nate, you have my permission to go ahead and really pound on Dean's car... see if you can get it down into the 130's hp/tq. Maybe scortch a piston or two to lower his compression. Or bust out the pliers and pull a few blades out of his compressor fan in the turbo. :P :lol: |
So when you dyno cars from this point...will you have to run it 7 times to get the best result? As you can tell. I don't know jack about dyno's...
<----Still learning..... :oops: |
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Idealy for tuning, Nate should be able to reset the ECU, then trick it into advancing the timing as far as possible in one run. Shiv over at Vishnu has a trick for doing it (I posted this in the 100 octane thread already): Quote:
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Just spoke to Nate and he gave me the secret defrost switch sequence to put Scott's car in Limp Home mode. 57HP, 48Lb-Ft. Torque... :twisted:
I'm not speaking for him, but as I said earlier, Dyno tuning is entirely different than what we did Saturday. Saturday was kinda like Friday Night Drags at the local track. Drive what you brung. No qualifying, practice, etc. like you would have at an official event. It is impracticle to do many runs or hook up all the Gizmos on a Dyno day. If my numbers are right, they did 17 or so cars in about 10 hours. It wouldn't have been much of a dyno day if we could only have done 6 or 8 cars IMHO. I would guess that from the time it rolled into the garage until it rolled out, those runs and all the hookup and logging probably took Nate 2 hours or more. I want to thank him for taking the time, and helping us all understand a little bit better. My guess remains that since Mike was out front occasionally winding it up and having some fun caused some knock etc and the ECU adjusted accordingly. Tyson, Matt and I who were poking along at the back not getting into the revs much and thus not knocking much didn't detune as far. |
I just need to remember next time that I have it dyno'ed there, with future mods added, that my car has the potintal to put down = to Matt's car........when compairing whp with the added mods and not just the whp I put down that day or I may have a +17 hp difference.
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the S-squared dyno day was pretty awesome... Mad props go out to Tyson, Dean, and Matt, for dyno'ing such awesome numbers. Dean's car must really love that cat back exhaust, tyson's car just knows it's bling with those SSR rims, and as for matt's STI.... The pig stickers just add +5hp each at the wheels.
Mike, you're wondering why your STi dyno'ed lower than matts??? your answer lies in the pig stickers :shock: Other than that, i have no explination. Oh yeah, maybe their cars are just the special ones that ppl talk about comming from the factory... or maybe not............ :wink: |
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My car evened out at 160Whp/162Ft-Lb. which is 12 down on WHP, and 15 down on Torque. It probably makes sense to drive around in Sac using lots of torque etc. for a while to stabilize the car before any Dyno Day type test. |
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