danger Posted October 1, 2007 Share Posted October 1, 2007 Does anyone know any way to calculate how much power my skyline is making atw? It made 200hp with a bung boost conroller. It made its peak power at only 8.9psi when its tuned to run 14. Just curious really, if theres no ratio/method , any guesses? Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 1, 2007 Share Posted October 1, 2007 If its standard turbo etc and youve just done the normal mods then just look around online and compare to someone elses with similar/same mods. Quote Link to comment Share on other sites More sharing options...
danger Posted October 1, 2007 Author Share Posted October 1, 2007 Yeah its a hard one to compare to anything cause everything has been done apart from the internals but the turbo has been put back to standard (i think) Quote Link to comment Share on other sites More sharing options...
mikuni Posted October 1, 2007 Share Posted October 1, 2007 Yeah theres this really accurate way to calculate power that quite a few people use. Its called a Dynamometer. Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 1, 2007 Share Posted October 1, 2007 What ya mean everything. Lol, whats the specs exactly? Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted October 1, 2007 Share Posted October 1, 2007 If you have access to the compressor map of the turbo, you can get a reasonable idea of what sort of power it can make for a given boost pressure. Quote Link to comment Share on other sites More sharing options...
Guest vvega Posted October 1, 2007 Share Posted October 1, 2007 if its stock turbo you can use teh 10hp per psi rule unless you have a v8 then its 20 only works if you stay in effebtancy Quote Link to comment Share on other sites More sharing options...
RT Posted October 1, 2007 Share Posted October 1, 2007 oh that rule Quote Link to comment Share on other sites More sharing options...
Testament Posted October 1, 2007 Share Posted October 1, 2007 err hp per psi? no that doesnt really work........ What mmm boost was saying does give you a "rough idea" if you have the compressor map and can work out the flow rate of the engine you can use the "10hp per pound per minute of air" rule of thumb Quote Link to comment Share on other sites More sharing options...
Requiemk Posted October 1, 2007 Share Posted October 1, 2007 Sorry for not posting earlier, 211.8hp Quote Link to comment Share on other sites More sharing options...
danger Posted October 3, 2007 Author Share Posted October 3, 2007 Yeah theres this really accurate way to calculate power that quite a few people use. Its called a Dynamometer. No shit, was just curious if there was any rough rule of thumb out there. Stock internals 3inch exhaust 255L walbro 620cc injectors custom plenum big front mount all custom piping etc dyno tuned GTS link ecu probably other shit, no sweat guys was just curious Quote Link to comment Share on other sites More sharing options...
Hemi Posted October 3, 2007 Share Posted October 3, 2007 dunno if this is what your looking for but air pressure is 14.7 psi (1 bar) at sea level , so theaoritically your forcing in twice the amount of air it normally get which would = 100% more power , although its a load due to too many varibles Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 3, 2007 Share Posted October 3, 2007 Yeah theres this really accurate way to calculate power that quite a few people use. Its called a Dynamometer. No shit, was just curious if there was any rough rule of thumb out there. Stock internals 3inch exhaust 255L walbro 620cc injectors custom plenum big front mount all custom piping etc dyno tuned GTS link ecu probably other shit, no sweat guys was just curious Sounds sweet. Id say you could easily find a similar car on the basis that: Stock internals - doesnt do anything for power really i.e. supportive mod 3inch exhaust (and assuming dump pipe) This is a common mod. 255l Walbro - supporting mod again 620cc - once again supporting mod custom plenium - wouldnt expect to do much at your level of tune (unless RB ones are hugely restrictive? Front mount - standard mod Turbo with extra boost - pretty standard mod. So the only real varable is the remapped ecu which is also out there. So just have to find any old skyline that is running the same boost as you with a FMI, filter, 3inch exhaust and perhaps and aftermarket or chipped ECU. Surely there will be HEAPS of them out there with these mods? Jus my 5c Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted October 3, 2007 Share Posted October 3, 2007 If its still the stock RB20 turbo, then its gonna be the big restriction....at 14psi it'll be about maxed out, and you'll be close to 170kw(227hp) @ the rears. Quote Link to comment Share on other sites More sharing options...
danger Posted October 4, 2007 Author Share Posted October 4, 2007 Yeah I got told it was a stock turbo but I've had it apart and it had a steel turbine not a ceramic so not sure. Its not a big deal I was just curious if there was any type of rough ratio. Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted October 4, 2007 Share Posted October 4, 2007 With a decent ECU and turbo, you've got enough fuel there to make a cubic assload of power. Even with a cheap T3/T4 thingy off TM you'd probably crack 400hp without too much stress. Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 4, 2007 Share Posted October 4, 2007 Could be the 300z toybo. Good for a bit more boost. Quote Link to comment Share on other sites More sharing options...
Hemi Posted October 4, 2007 Share Posted October 4, 2007 yuh those things have much longer legs Quote Link to comment Share on other sites More sharing options...
Guest d1 mule Posted October 4, 2007 Share Posted October 4, 2007 i cant remember it but i have seen a mathematical calultion for power, all to do with fuel, compression, rpm etc etc etc etc not that that helps but there is one out there Quote Link to comment Share on other sites More sharing options...
danger Posted October 4, 2007 Author Share Posted October 4, 2007 With a decent ECU and turbo, you've got enough fuel there to make a cubic assload of power. Even with a cheap T3/T4 thingy off TM you'd probably crack 400hp without too much stress. It used to run a t04 or something on a highrise manifold sticking out of a hole in the bonnet. Fuck it, gonna go back to playing with carbs, just would be nice to be able to give an approximate figure in my sales pitch. Quote Link to comment Share on other sites More sharing options...
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