Strizzy Posted October 7, 2013 Share Posted October 7, 2013 Looking at other dyno plots on their site, I find it odd that none of the HP/TQ curves cross at 5250. Here is a plot from a td06-20g GR STI: http://www.altechno.ru/images/stories/subaru/grb/GRB-818-3.jpg My bad luck build Link to comment Share on other sites More sharing options...
Rutchard Posted October 7, 2013 Share Posted October 7, 2013 Christ, every time one of us goes E85, the dyno numbers get scrutinized one way or another. Link to comment Share on other sites More sharing options...
pfoyle Posted October 7, 2013 Share Posted October 7, 2013 Looking at other dyno plots on their site, I find it odd that none of the HP/TQ curves cross at 5250. Here is a plot from a td06-20g GR STI: http://www.altechno.ru/images/stories/subaru/grb/GRB-818-3.jpg I was thinking this might be a units conversion problem... this graph is in NM (newton meters, I think?)... 480Nm = 354 ft-lbs, which seems about right... Does different units also explain why the plots don't cross at 5250? Link to comment Share on other sites More sharing options...
Strizzy Posted October 7, 2013 Share Posted October 7, 2013 It appears the calculations are way off on the dyno that Bombay was dyno'd. Using the formula HP = (TQ*RPM) / 5252, Bombay's HP should read closer to 350hp, on the plot he provided http://legacygt.com/forums/attachment.php?attachmentid=164824&d=1381165809 So, at 4000rpm, it looks like his torque is about 460. Which would equate his wheel HP being ~350.34. My bad luck build Link to comment Share on other sites More sharing options...
Strizzy Posted October 7, 2013 Share Posted October 7, 2013 Does different units also explain why the plots don't cross at 5250? It shouldn't, since 5252 is a constant used in the calculation of HP. My bad luck build Link to comment Share on other sites More sharing options...
SomeZero Posted October 7, 2013 Author Share Posted October 7, 2013 Christ, every time one of us goes E85, the dyno numbers get scrutinized one way or another. Now we just need the EFI goon squad to come shit up this thread like any other that puts out better numbers than their project. Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
Bombay Posted October 8, 2013 Share Posted October 8, 2013 It appears the calculations are way off on the dyno that Bombay was dyno'd. Using the formula HP = (TQ*RPM) / 5252, Bombay's HP should read closer to 350hp, on the plot he provided http://legacygt.com/forums/attachment.php?attachmentid=164824&d=1381165809 So, at 4000rpm, it looks like his torque is about 460. Which would equate his wheel HP being ~350.34. It's graph ~from flywheel Link to comment Share on other sites More sharing options...
Strizzy Posted October 8, 2013 Share Posted October 8, 2013 It's graph ~from flywheel But the mathematical formula would remain the same. It almost seems the scaling or the constant (RPM value to calculate HP) was changed in the dyno software. From the looks of it, it appears to be set around 6900 RPM. Not sure why, as that would produce an incorrect (and low) HP correlation to TQ. My bad luck build Link to comment Share on other sites More sharing options...
SomeZero Posted October 8, 2013 Author Share Posted October 8, 2013 In other news wed night I'll be at Great Lakes Drag strizzy if you want to see me grenade this trans. Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
Strizzy Posted October 8, 2013 Share Posted October 8, 2013 What time? I might be able to go, but not with my car. My bad luck build Link to comment Share on other sites More sharing options...
SomeZero Posted October 8, 2013 Author Share Posted October 8, 2013 Run the raptor Hope to leave 6 star around 6 or 7 depending on who roles with me Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
Strizzy Posted October 8, 2013 Share Posted October 8, 2013 Run the raptor While pulling you on the trailer, with your blown trans? My bad luck build Link to comment Share on other sites More sharing options...
SomeZero Posted October 8, 2013 Author Share Posted October 8, 2013 Ha Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
SurlyOldManMN Posted October 8, 2013 Share Posted October 8, 2013 I'm pretty sure nobody is putting down 600'ish to the wheels in stock form (or any form that I'm aware of) automagic or not. That's not even a dyno variance question, that's just plain incorrect. By 200%'ish. Looking at other dyno plots on their site, I find it odd that none of the HP/TQ curves cross at 5250. Indeed. That's more than odd. It's mathematically incorrect. Edit: lol metric. Still, they're incorrectly calculating if the curves don't cross at 5250. Link to comment Share on other sites More sharing options...
ebo03 Posted October 8, 2013 Share Posted October 8, 2013 Subscribed Link to comment Share on other sites More sharing options...
Bombay Posted October 8, 2013 Share Posted October 8, 2013 I can't help you with the little information you gave me, I can just tell you that something isn't right. Update Link to comment Share on other sites More sharing options...
BigBopper Posted October 8, 2013 Share Posted October 8, 2013 Modifications: 3" invidia without catback Denso IRIDIUM IKH22 ATF cooler kit - automatic transmission Oil cooler kit TMIC RacerX Injector Dynamics ID1000 DEATSCHWERKS DW65C Greddy 3 port solenoid Hybrid VF54 Ecutek Octane 98 245/40/19 Nitto invo Dynamometer - SuperFlow awd 880 Stock 236 hp on wheels (~287hp on flywheel) With hybrid vf54 252 hp on wheels (~300hp on flywheel) I don't see an aftermarket BPV ... Are you still running the OEM BPV? How much boost are you running? Have you tested your BPV to see that it's not leaking at higher boost pressures? That's where your missing HP/TQ could be ... ask me how I know . Link to comment Share on other sites More sharing options...
Strizzy Posted October 8, 2013 Share Posted October 8, 2013 His boost plot shows 2bar (30psi) absolute, so that would be about 15psi relative (what you see on your boost gauge). Not sure why he's tuned to 15psi when that turbo is more than capable of 24psi. My bad luck build Link to comment Share on other sites More sharing options...
Bombay Posted October 9, 2013 Share Posted October 9, 2013 His boost plot shows 2bar (30psi) absolute, so that would be about 15psi relative (what you see on your boost gauge). Not sure why he's tuned to 15psi when that turbo is more than capable of 24psi. "After looking at the graphs, your car is boosting at little over 2 bar, that’s 28psi, and that’s very high for a Subaru stock engine." © Tomioka Link to comment Share on other sites More sharing options...
SomeZero Posted October 9, 2013 Author Share Posted October 9, 2013 My tune peaks at 22 and change psi at 3700 rpm then tapers to 19 psi at red line. Turbo has more to give but with stock bottom end and unknown trans strength. My tuner kept it there for now. When we build the motor here soon and we get a real 6 speed in it we will really push this turbo. Plus we aee talking to TR about a bigger hot side for it as well. Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
Bombay Posted October 9, 2013 Share Posted October 9, 2013 Plus we aee talking to TR about a bigger hot side for it as well. Sent from my SCH-I605 using Tapatalk 4 my tuner said also want more hp? - need a bigger hot side Link to comment Share on other sites More sharing options...
SomeZero Posted October 9, 2013 Author Share Posted October 9, 2013 Well your tuner is leaving a lot on the table on your tune. The hotside is not even the first of your issues. I'd suggest that you start your own thread about your car and your issues. Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
acumenhokie Posted October 9, 2013 Share Posted October 9, 2013 Keep me posted on your hotside findings. Nobody seems to think anything more than a TD05 will fit. Link to comment Share on other sites More sharing options...
SomeZero Posted October 9, 2013 Author Share Posted October 9, 2013 Prob get my oil changed today and while it is uo I hope to get some clearance mesurements. Then we will send them off to EDO and we will see what they find out. Sent from my SCH-I605 using Tapatalk 4 Link to comment Share on other sites More sharing options...
Bombay Posted October 9, 2013 Share Posted October 9, 2013 Well your tuner is leaving a lot on the table on your tune. The hotside is not even the first of your issues. I'd suggest that you start your own thread about your car and your issues. Sent from my SCH-I605 using Tapatalk 4 I'm sorry that clog your thread Link to comment Share on other sites More sharing options...
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