_Shane_ Posted September 19, 2008 Share Posted September 19, 2008 Had the supra on the rollers last weekend just for a power run Made 397 bhp and 430 ft lbs torque Well happy with that. Will throw up Dyno print out in a bit Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 19, 2008 Share Posted September 19, 2008 Congrats! whats the spec? Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted September 19, 2008 Author Share Posted September 19, 2008 hybrid uk turbos, blitz fmic, blitz nur spec, decat/downpipes, water injection, 1.3bar Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted September 19, 2008 Share Posted September 19, 2008 Is that result wheels I take it...? If so good result..! Quote Link to comment Share on other sites More sharing options...
dannysupratt Posted September 19, 2008 Share Posted September 19, 2008 Is that result wheels I take it...? If so good result..! i doubt that will be at the wheels, if it is it would be seriously seriously impressive:) Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted September 19, 2008 Share Posted September 19, 2008 (edited) i doubt that will be at the wheels, if it is it would be seriously seriously impressive:) With hybrids and water injection at 1.3 bar, thought it may be a little more than that. Saw a BPU Jspec reach 400 on just decat, fuel cut, retrictor ring etc and no water inj. down at AFR on sunday, I think. But hay Im new to this dyno malarcy Edit: it was monkey3's As long as your happy shane, well done Edited September 19, 2008 by CarlT67 (see edit history) Quote Link to comment Share on other sites More sharing options...
Axle Posted September 19, 2008 Share Posted September 19, 2008 Saw a BPU Jspec reach 400 on just decat, fuel cut, retrictor ring etc down at AFR on sunday, I think. But hay Im new to this dyno malarcy Yeh mine reached Just over 400 on 1.1 Bar at Surrey Rolling Road. But was then bumped up to 432 BHP with the help of the Emanage tuned by Ryan.G. Still a good figure Shane. Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted September 19, 2008 Author Share Posted September 19, 2008 im well happy with that, water injection was NOT run on that run either Have an aem here too with all the trick bits, will get ryan to map that for me but will wait till i have the rebuild done firstly Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted September 19, 2008 Share Posted September 19, 2008 im well happy with that, water injection was NOT run on that run either Ah, probably got a bit more to go then, good result so far though...! Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted September 22, 2008 Share Posted September 22, 2008 My j-spec is 390bhp @ BPU measured at two independant dynos. Seen 467bhp on a TRD EU-spec BPU + intercooler and a boost controller. Stock EU tubbies Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted October 13, 2008 Author Share Posted October 13, 2008 Here is a pic of the dyno,sorry about delay Quote Link to comment Share on other sites More sharing options...
DamanC Posted October 14, 2008 Share Posted October 14, 2008 Interesting curves.... Quote Link to comment Share on other sites More sharing options...
Homer Posted October 14, 2008 Share Posted October 14, 2008 Is this another dyno Joke? The rpm's decrease during a run yet gain more power - impossible. That’s just ridiculous Shane, get your money back. Either your supra is completely buggered and is capable of reversing the space time continuum; or the dyno operator doesn't know what they're doing. I’m going with the 2nd option… Quote Link to comment Share on other sites More sharing options...
Daston Posted October 14, 2008 Share Posted October 14, 2008 also isnt it odd to have more torque than power on a petrol engine? Quote Link to comment Share on other sites More sharing options...
Burna Posted October 14, 2008 Share Posted October 14, 2008 Is this another dyno Joke? The rpm's decrease during a run yet gain more power - impossible. That’s just ridiculous Shane, get your money back. Either your supra is completely buggered and is capable of reversing the space time continuum; or the dyno operator doesn't know what they're doing. I’m going with the 2nd option… Is this the part you are talking about Homer? (Just making sure I understand ) Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted October 14, 2008 Share Posted October 14, 2008 That is exactly what Homer is on about. It is not possible. Something is very weird. A dyno sheet shouldnt look like that. Take a look at a BPU dyno here: http://onh93a.blu.livefilestore.com/y1ptlbM13zlL9Qo_V6fZ5S1Xo__HgJVnfygInSe1rArWaWFQea0pnbn2fryceVe9MJb53wTe_TNkFE/DynoDecat.jpg Or another version here (look at the two middle curves here, which are wheel-bhp, which again is what all dynes measure and then calculate the flywheel bhps): http://onh93a.blu.livefilestore.com/y1pkEHaT_SsN46qUKcPzhqBaIYwp4SFnW8vTPpRjMPwFgp0JxnAOiuNcrRkUw6A-30QLWrP9p8Pdvc/image1.jpg Quote Link to comment Share on other sites More sharing options...
Steve Posted October 14, 2008 Share Posted October 14, 2008 Interesting results there Quote Link to comment Share on other sites More sharing options...
bignum Posted October 14, 2008 Share Posted October 14, 2008 Looks like he drove up a wall, Quote Link to comment Share on other sites More sharing options...
Chingy Posted October 14, 2008 Share Posted October 14, 2008 :blink:these crazy graphs are getting common Quote Link to comment Share on other sites More sharing options...
Homer Posted October 14, 2008 Share Posted October 14, 2008 Is this the part you are talking about Homer? (Just making sure I understand ) Yep, thats one part that shows something that's impossible. The massive hike in torque at that point is equally impossible. The rest of the graph after that point can't be correct either, otherwise your engine is buggered. It should show a steady increase in torque to around 5k rpm then a slight drop off until red line; while the bhp increases until a slight drop off after 6-6.2k rpm. It'll be the dyno operator not knowing what they're doing, possibly combined with a boost issue. However my money is on the dyno operator not knowing how to use their dyno correctly. The first picture Bodilx6 posted is what a normal TT dyno should look like. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted October 14, 2008 Share Posted October 14, 2008 Not just the negative RPM/BHP increase, that very odd peak in BHP/FTlbs takes place over just 200 RPM:blink: Quote Link to comment Share on other sites More sharing options...
Guest pitstopralph Posted October 14, 2008 Share Posted October 14, 2008 Running the risk of upsetting you all again, I was passing and saw the discussion, delete this if it's rubbish but I reckon if Torque = Horsepower x 5252 / rpm When power graphs show Horsepower and Torque in foot Pounds on the same axis, the lines must cross at 5252 RPM If not the graph is wrong! Amazing how many are! This graph would seem to show a car either hopping up and down in the Rollers, having the tyres break away or the clutch slipping. Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted October 14, 2008 Author Share Posted October 14, 2008 Im getting wheel spin on the rollers at about the point the 2nd turbo comes on song .... thus increasing rpm while not applying the same power to the rollers, then she re-establishes grip , rpms drop and more power is delivered to the rollers .... only logical explanation i can come up with anyway , other than them hybrid turbos have a flux capacitor in em Quote Link to comment Share on other sites More sharing options...
Guest pitstopralph Posted October 15, 2008 Share Posted October 15, 2008 Yep, that was about my take on it! Homer was right though, it looks as though the operator was to blame, it appears as though has let the load off the rollers to establish horsepower rather than pulling the motor down, much less likely to get wheel spin that way. If you use them again, get them to spray white grease on the rollers, that'll make the tyres stick better once hot. Quote Link to comment Share on other sites More sharing options...
Homer Posted October 15, 2008 Share Posted October 15, 2008 Running the risk of upsetting you all again, I was passing and saw the discussion, delete this if it's rubbish but I reckon if Torque = Horsepower x 5252 / rpm When power graphs show Horsepower and Torque in foot Pounds on the same axis, the lines must cross at 5252 RPM You are correct fella Quote Link to comment Share on other sites More sharing options...
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