Scooter Posted January 4, 2007 Share Posted January 4, 2007 i'm having a physics / heat transfer / gas compression and expansion debate with myself here............so can anyone tell me what a typical ambient temp and resulting intake temp is? is the above a typical drop/difference i'm struggling a little with the intake temp being significantly lower than the ambient............. Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 4, 2007 Share Posted January 4, 2007 Mine was ambient 28.3 Intake 21 Same rollers:) Quote Link to comment Share on other sites More sharing options...
Wez Posted January 4, 2007 Share Posted January 4, 2007 i'm having a physics / heat transfer / gas compression and expansion debate with myself here............so can anyone tell me what a typical ambient temp and resulting intake temp is? is the above a typical drop/difference i'm struggling a little with the intake temp being significantly lower than the ambient............. Depends where the intake probe is placed, what intercooler you are running and how good the fans are at the RR. Quote Link to comment Share on other sites More sharing options...
Wez Posted January 4, 2007 Share Posted January 4, 2007 Mine was ambient 28.3 Intake 21 Same rollers:) Jamie, are these figures with the cooling mist water/meth kit you have listed in your garage? Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 4, 2007 Share Posted January 4, 2007 Jamie, are these figures with the cooling mist water/meth kit you have listed in your garage? No mate, have not wired it back up yet as no room in the engine bay now for the water tank, i have a big alloy tank im gonna mount in the boot before i go back for the rest of the mapping. Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 I have one of these all ready to go... Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 I also have another brand new water/meth kit (DevilsOwn) all that is needed is a tank. I will post that kit up for sale here shortly... Quote Link to comment Share on other sites More sharing options...
supradibbs Posted January 4, 2007 Share Posted January 4, 2007 Nice one Joe Dan really is shit hot huh might have to pop down and see you soon and go for a spin:d My bad boy starts this month at turbofit cant wait:) Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 Sounds good bud Quote Link to comment Share on other sites More sharing options...
terribleturner Posted January 4, 2007 Share Posted January 4, 2007 Didn't i tell you Joe the manual transforms the car Bet it feels like they day you bought her all over. Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 Didn't i tell you Joe the manual transforms the car Bet it feels like they day you bought her all over. And then some.... Quote Link to comment Share on other sites More sharing options...
Scooter Posted January 4, 2007 Share Posted January 4, 2007 Depends where the intake probe is placed, what intercooler you are running and how good the fans are at the RR. cheers i'm just struggling to get how a flow of say 20 degrees ambient air can cool anything to below that temp? Intake air is heated by being compressed and presumable due to going through a hot turbo/piping etc....... then its cooled by the IC..........does it then expand further cooling it? Intuitively i would expect that the IC would do no better than get the intake air back to as near to the ambient temp as possible? Quote Link to comment Share on other sites More sharing options...
Scooter Posted January 4, 2007 Share Posted January 4, 2007 btw its just annoying me that i don't understand whats going on! not trying to detract from Gamers car at all. x3 the power of my NA must be mad especially at this time of year. Quote Link to comment Share on other sites More sharing options...
wkdtime Posted January 4, 2007 Share Posted January 4, 2007 Looks impressive, Whats with the major power loss from Fly to wheels, its got you down for 480BHP odd at the wheels and 630BHP odd at the fly i assume. Have i missed summit? Quote Link to comment Share on other sites More sharing options...
Wez Posted January 4, 2007 Share Posted January 4, 2007 btw its just annoying me that i don't understand whats going on! not trying to detract from Gamers car at all. x3 the power of my NA must be mad especially at this time of year. I started another thread to chat about it technical :- http://www.mkivsupra.net/vbb/showthread.php?t=94732 Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 Looks impressive, Whats with the major power loss from Fly to wheels, its got you down for 480BHP odd at the wheels and 630BHP odd at the fly i assume. Have i missed summit? No idea, mate, it is certainly more than 15% loss, I guess it all depends on how the RR is set up. I assumed that manual losses were around 15% so that should put me at 530ish rwhp if true. Quote Link to comment Share on other sites More sharing options...
wkdtime Posted January 4, 2007 Share Posted January 4, 2007 No idea, mate, it is certainly more than 15% loss, I guess it all depends on how the RR is set up. I assumed that manual losses were around 15% so that should put me at 530ish rwhp if true. 530-550 ish is what i would have expected with your set up. Im sure it's around that TBH, just the way they have it set up i suppose. Quote Link to comment Share on other sites More sharing options...
Alex Posted January 4, 2007 Share Posted January 4, 2007 No idea, mate, it is certainly more than 15% loss, I guess it all depends on how the RR is set up. I assumed that manual losses were around 15% so that should put me at 530ish rwhp if true. It's the other way around the RWHP figure is true...the engine BHP figure is then extrapolated from the engine drag on the run down. Also the 256 cam is not restricting it. In the US there are quite a few dyno's on stock cams running 550RWHP at 21psi. The T67 certainly doesn't need a 264in to make 580RWHP. Out of interest which gear was it in for this run? Quote Link to comment Share on other sites More sharing options...
Homer Posted January 4, 2007 Share Posted January 4, 2007 It's the other way around the RWHP figure is true...the engine BHP figure is then extrapolated from the engine drag on the run down. Out of interest which gear was it in for this run? Was just typing the same thing I'd put money on it being run in 4th Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 4, 2007 Share Posted January 4, 2007 Im almost certain it would have been run in 5th gear, im sure mine was, ill pm this link to the mapper for his views:) Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 4, 2007 Author Share Posted January 4, 2007 Cheers Jamie Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted January 4, 2007 Share Posted January 4, 2007 I saw the car there on Wednesday (could hardly miss it) great figures and gaining an extra 100bhp with a cam change sounds too tempting! The car looked fantastic;) Quote Link to comment Share on other sites More sharing options...
Alex Posted January 4, 2007 Share Posted January 4, 2007 Im almost certain it would have been run in 5th gear, im sure mine was, ill pm this link to the mapper for his views:) That's good then we can get a handle on the odd temp figure...I'm sure it's something simple. Quote Link to comment Share on other sites More sharing options...
jay_NW Posted January 4, 2007 Share Posted January 4, 2007 Verry Good figures there mate. I was gonna goto Turbofit to check on my car while its getting NA-T conversion there. unfortunately something came up:( . Couldave seen your car there, maybe oneday. Quote Link to comment Share on other sites More sharing options...
Homer Posted January 4, 2007 Share Posted January 4, 2007 Joe, what was the Rear Wheel bhp when we did the pistonheads day at SRR? Would be interesting to see how far its come. Quote Link to comment Share on other sites More sharing options...
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