ClaireRZ-S Posted December 19, 2008 Share Posted December 19, 2008 (edited) Just back from Westward and have to say i'm well happy with what i got . Got 345bhp and 320lbs of Torque @1bar. With the 1st cat still in . And the vid http://s290.photobucket.com/albums/l...t=18122008.flv Edited December 19, 2008 by ClaireRZ-S (see edit history) Quote Link to comment Share on other sites More sharing options...
Jake Posted December 19, 2008 Share Posted December 19, 2008 Good figure. With the 1st decat still in . Do you mean with the 1st cat still in? Quote Link to comment Share on other sites More sharing options...
ClaireRZ-S Posted December 19, 2008 Author Share Posted December 19, 2008 Good figure. Do you mean with the 1st cat still in? yes sorry ive been drinking tonite so im not the best... Quote Link to comment Share on other sites More sharing options...
Jake Posted December 19, 2008 Share Posted December 19, 2008 yes sorry ive been drinking tonite so im not the best... I make that around 22½% drivetrain losses too, so not stupidly generous like some disreputable dyno operators would allow. Is the 19°C ambient temp about right? It was bloody freezing down here today! Quote Link to comment Share on other sites More sharing options...
Supra-Dupra Posted December 19, 2008 Share Posted December 19, 2008 I make that around 22½% drivetrain losses too, so not stupidly generous like some disreputable dyno operators would allow. Is the 19°C ambient temp about right? It was bloody freezing down here today! Same guy mapped my GTR and it runs smoothly for the last year or so and he has a good reputation, but is 22.5% still not a tad high !? I know the fly and torque is about the average for 1bar TT Supra but the whp seems a tad low. Quote Link to comment Share on other sites More sharing options...
j80leo Posted December 19, 2008 Share Posted December 19, 2008 That's a really good figure and the torque is quite close to the horsepower so a very good match Quote Link to comment Share on other sites More sharing options...
kslb Posted December 19, 2008 Share Posted December 19, 2008 The RWHP is pretty good imo and 267 is a healthy figure. Well done Claire. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 19, 2008 Share Posted December 19, 2008 19 degrees intake air temp? I assume the probe was wafting in fresh air, and not actually measuring intake temps? Quote Link to comment Share on other sites More sharing options...
SteveR Posted December 19, 2008 Share Posted December 19, 2008 "Steam Pressure"? Can someone explain please? Quote Link to comment Share on other sites More sharing options...
ClaireRZ-S Posted December 19, 2008 Author Share Posted December 19, 2008 19 degrees intake air temp? I assume the probe was wafting in fresh air, and not actually measuring intake temps? I'm not to sure as i wasn't looking "Steam Pressure"? Can someone explain please? I don't know i just took note of the important figures Quote Link to comment Share on other sites More sharing options...
supra_aero Posted December 19, 2008 Share Posted December 19, 2008 Why have you got the first cat still in? Taking that out would be my first mod when I have my tt conv. Quote Link to comment Share on other sites More sharing options...
ClaireRZ-S Posted December 19, 2008 Author Share Posted December 19, 2008 Why have you got the first cat still in? Taking that out would be my first mod when I have my tt conv. Oh i'll definintely be doing it, when i got the car the 2nd decat was already in it. I got the 1st decat last week for bpu but last thing i need is the fuel pump and get the bits done together. I just wanted to see what the car was pushing out before i did any mods to it just to have a before and after. Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted December 19, 2008 Share Posted December 19, 2008 Haven't you got to be careful with exhaust temps running 1Bar with the first cat still in, or am I wrong...? Quote Link to comment Share on other sites More sharing options...
NatsupraTT Posted December 19, 2008 Share Posted December 19, 2008 Yeah the 1st cat can generate alot of heat with the restriction which can shorten the life of the turbo's by puting more strain on them Quote Link to comment Share on other sites More sharing options...
Kranz Posted December 19, 2008 Share Posted December 19, 2008 "Steam Pressure"? Can someone explain please? I think they mean vapour pressure.... the pressure at which the humidity in the air condenses for a given temperature Its a factor used in the correction of power and is used in combination with relative humidity and temperature to correct the power to a standardised value (so no matter where the car is in the world and the conditions, the power is still corrected to the same standard). I think (from back in my dyno operator days)!!! Quote Link to comment Share on other sites More sharing options...
Kranz Posted December 19, 2008 Share Posted December 19, 2008 Oh i'll definintely be doing it, when i got the car the 2nd decat was already in it. I got the 1st decat last week for bpu but last thing i need is the fuel pump and get the bits done together. I just wanted to see what the car was pushing out before i did any mods to it just to have a before and after. That's a good baseline figure before you go for BPU..... Sounds like it'll be great after Quote Link to comment Share on other sites More sharing options...
SilverSoop Posted December 20, 2008 Share Posted December 20, 2008 (edited) It's like mine though when I had her Dyno'd, I was concerned with the figure slightly but it may not be so bad I suppose... 383 FWHP 334.1 Ft/lbs of Torque 290 RWHP It's suprising how much you lose...is this figure ok or a bit on the concerning side?? Bearing in mind that my Gearbox does need relpacing along with both of my Turbo's and a new exhaust system wouldn't go amiss either... Also at that particular time, I found out that I had 8 boost leaks and my new induction system wasn't on properly...so it obviously wasn't helping the figures... I would like to bet that it would be a bit higher now... Edited December 20, 2008 by SilverSoop (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted December 20, 2008 Share Posted December 20, 2008 It's suprising how much you lose...is this figure ok or a bit on the concerning side?? The flywheel figures are not a true value, they are an estimate based on the wheel horsepower and estimated transmission losses. All these values can be manipulated by the dyno operator, hence why you will often see wildly varying figures from dyno to dyno. The only way to get a true flywheel figure is on an engine dyno ie. with the engine out of the car. Quote Link to comment Share on other sites More sharing options...
Gazboy Posted December 20, 2008 Share Posted December 20, 2008 It's like mine though when I had her Dyno'd, I was concerned with the figure slightly but it may not be so bad I suppose... 383 FWHP 334.1 Ft/lbs of Torque 290 RWHP It's suprising how much you lose...is this figure ok or a bit on the concerning side?? Bearing in mind that my Gearbox does need relpacing along with both of my Turbo's and a new exhaust system wouldn't go amiss either... Also at that particular time, I found out that I had 8 boost leaks and my new induction system wasn't on properly...so it obviously wasn't helping the figures... I would like to bet that it would be a bit higher now... On stock twins isn't the torque figure in bls.ft normaly very similar to the bhp? Mine was 365/360 (303rwhp) Quote Link to comment Share on other sites More sharing options...
ClaireRZ-S Posted December 20, 2008 Author Share Posted December 20, 2008 That's a good baseline figure before you go for BPU..... Sounds like it'll be great after Thanks yeah i'm happy with it. Just wanted to see what ye thought and would this be a normal figure for a standard tt Quote Link to comment Share on other sites More sharing options...
SilverSoop Posted December 20, 2008 Share Posted December 20, 2008 (edited) On stock twins isn't the torque figure in bls.ft normaly very similar to the bhp? Mine was 365/360 (303rwhp) Thats what I am saying, it differs quite a bit doesn't it... Yeah mine was 383/334.1 (290 RWHP) Edited December 20, 2008 by SilverSoop (see edit history) Quote Link to comment Share on other sites More sharing options...
SilverSoop Posted December 20, 2008 Share Posted December 20, 2008 The flywheel figures are not a true value, they are an estimate based on the wheel horsepower and estimated transmission losses. All these values can be manipulated by the dyno operator, hence why you will often see wildly varying figures from dyno to dyno. The only way to get a true flywheel figure is on an engine dyno ie. with the engine out of the car. Yeah ok thanks Nic, just wondering though based on the figure that I received, do you think that is could be a bit low?? (However, it wasnt running all the great back then when I had the Dyno) Quote Link to comment Share on other sites More sharing options...
Supra-Dupra Posted December 20, 2008 Share Posted December 20, 2008 The flywheel figures are not a true value, they are an estimate based on the wheel horsepower and estimated transmission losses. All these values can be manipulated by the dyno operator, hence why you will often see wildly varying figures from dyno to dyno. The only way to get a true flywheel figure is on an engine dyno ie. with the engine out of the car. They are also not a constant. Quote Link to comment Share on other sites More sharing options...
SteveR Posted December 22, 2008 Share Posted December 22, 2008 I think they mean vapour pressure.... the pressure at which the humidity in the air condenses for a given temperature Its a factor used in the correction of power and is used in combination with relative humidity and temperature to correct the power to a standardised value (so no matter where the car is in the world and the conditions, the power is still corrected to the same standard). I think (from back in my dyno operator days)!!! Interesting, cheers! Quote Link to comment Share on other sites More sharing options...
Gazboy Posted December 22, 2008 Share Posted December 22, 2008 Yeah ok thanks Nic, just wondering though based on the figure that I received, do you think that is could be a bit low?? (However, it wasnt running all the great back then when I had the Dyno) Imo, looking at your spec, and your rwhp figures comapred to your flywheel hp figures, your dyno result isn't worth a wank. See if Charlie at SRR can tag you onto a RR day and get some better results, but make sure your car is tip-top or you're wasting your own time and money. Quote Link to comment Share on other sites More sharing options...
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