Does this WHP figure seem ok?
#1
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Does this WHP figure seem ok?
hi...i have a 2001 fd3s which i modded a bit...these r some of the mods that i did...
power fc, upgraded smic, custom k&n intake, 850cc primaries, 1300cc sec., full exhaust, greddy air pump removal pulley kit,...
i made 270whp at 14.7 psi on a dynodynamics dyno...i have heard of different dyno brands recording different HP figures...how different is it to that of a dynojet?...the motor is stock port and stock turbos...does this figure seem right to you?...thanks
power fc, upgraded smic, custom k&n intake, 850cc primaries, 1300cc sec., full exhaust, greddy air pump removal pulley kit,...
i made 270whp at 14.7 psi on a dynodynamics dyno...i have heard of different dyno brands recording different HP figures...how different is it to that of a dynojet?...the motor is stock port and stock turbos...does this figure seem right to you?...thanks
#3
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your car should be making close to 270whp stock, however I don't know anything about that dyno. There are two major dyno's we use in the States, Dynojets and Mustang dynos. Dynojets tend to run high, Mustang dyno's tend to run low, for that reason, Mustang dyno's are usually considered the more accurate one however the truth is dyno numbers are only a rough figure. They show what your car was putting down at that time of that day in that humidty and that heat with that dyno technician on that brand of dyno. the actual power your car's making could vary a lot.
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#11
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My car has been tuned/mapped on a Dyno-Dynamics Dyno. At .8bar I was making 280rwhp.
270 is pretty low for 1 bar (I'm making 325 at 1.1 bar). What were your AFR's and is the person doing your mapping experienced?
270 is pretty low for 1 bar (I'm making 325 at 1.1 bar). What were your AFR's and is the person doing your mapping experienced?
#14
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I'm just stating this to clear up any confusion on European numbers (they tend to use Dyno Dynamics dyno's here) and American numbers (I was expecting American numbers until my tuner (one of the better ones in England) pointed out the difference to me). 325whp on a dyno dynamics is basically 380-385whp on a dynojet. 270 is about 315-320, which is kinda low for 1 bar, no matter how you slice it...
Last edited by fendamonky; 05-16-08 at 09:15 PM.
#15
Rotor or no motor
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other than that. the terms horsepower (hp) is per ton. rx7 is 12xx kg
And the tolerances from the engine till the wheels drop the whp ( wheel horsepower )
Its impossible to make 276bhp and 270whp
And the tolerances from the engine till the wheels drop the whp ( wheel horsepower )
Its impossible to make 276bhp and 270whp
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It's rated at 276 bhp, as in the case of the RX8, rated numbers can be grossly off of what is measured. I'd like to see said dyno graph, 270 whp on stock twins is pretty impressive.
Last edited by p4nc7; 05-16-08 at 09:36 PM.
#17
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Fenda and RRRX7, have you dynoed a stock S8 RX-7? I've spoken with people who have, and the answer's always the same.
Have you heard of the 2003-2004 Mustang Cobra which was rated at "385 HP", not "385 BHP". Dyno one stock and it will make damn close to 385whp. Ratings aren't always at the flywheel.
Anyway, the long of the short of it is, as Fendamonkey said, he's low for 1 bar.
Have you heard of the 2003-2004 Mustang Cobra which was rated at "385 HP", not "385 BHP". Dyno one stock and it will make damn close to 385whp. Ratings aren't always at the flywheel.
Anyway, the long of the short of it is, as Fendamonkey said, he's low for 1 bar.
#18
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^Probably the most important thing to take away from my comments...
I gained 40whp off a decent tune (alone) from a good shop.
Though the % numbers from one dyno to another hold true, the rest (anything seen as trashtalking) is drunken banter...
Seriously though, a dyno is simply a tool used to produce a good, strong, safe tune. Numbers are simply that, numbers. Get yourself a quality map that holds good AFR's, and appropriate timing, and you are good to go!
I gained 40whp off a decent tune (alone) from a good shop.
Though the % numbers from one dyno to another hold true, the rest (anything seen as trashtalking) is drunken banter...
Seriously though, a dyno is simply a tool used to produce a good, strong, safe tune. Numbers are simply that, numbers. Get yourself a quality map that holds good AFR's, and appropriate timing, and you are good to go!
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