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Author
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Topic: stock parts and power
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bigjay
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Member # 6110
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posted
 
 
a few questions here, what kind of power can you make on a stock mass air/injectors etc, i came from owning lt1 powered cars where the maf was good to 300hp at least and wasnt a bottleneck untill 325-350, are the maf/Tb/injectors limiting power ona stock car, woudl i gain anything from just bumping them up or is that something to do when i do cam/heads etc? thanks
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if ford is FOMOco, that means honda is HOMOco
Posts: 132 | From: Escalon, 209 | Registered: Oct 2005
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Blind
2.3L
CAFords OG
Member # 3052
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posted
horsepower (HP) = lb/hr (fuel) / BSFC
If we assume BSFC of .5, then HP = 2 * lb/hr. Then, if we round the weight of a pound of fuel to 6 pounds HP = 12 * gal/hr. So, if we assume .5 BSFC, then you can actually multiply the numbers in the flow charts by 12 to compute supported horsepower.
For example, If you look up the flow rate of the 190 ltr/hr pump in the Technical section, you will see that it will push 36 gal/hr at 50 psi with a 12 VDC power source. If your engine is pumping out 500 hp when the fuel pressure is 50 psi [@ 12VDC], you probably won't want to use the 190 ltr/hr pump [36 * 12 = 432].
Remember, that forced-induction engines typically raise the fuel pressure under boost. Be sure to take into account that you will have a higher-than-base fuel pressure under boost.
taken from:
http://www.autoperformanceengineering.com/
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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Blind
2.3L
CAFords OG
Member # 3052
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posted
stock injectors flow 19lb/hr
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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jaybquick
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Member # 4286
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posted
quote:
Originally posted by bigjay:
a few questions here, what kind of power can you make on a stock mass air/injectors etc, i came from owning lt1 powered cars where the maf was good to 300hp at least and wasnt a bottleneck untill 325-350, are the maf/Tb/injectors limiting power ona stock car, woudl i gain anything from just bumping them up or is that something to do when i do cam/heads etc? thanks
What year mustang and will it be a GT or Cobra. That might help a little.
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91 Mustang GT ET: 11.92@115
66 Mustang ET: 11.43@119
01 Audi S4 ET: 10.8@131
05 Audi S4 ET: 11.9@116
08 Audi S5 ET: 11.9@118
Posts: 416 | From: Lathrop | Registered: Mar 2004
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bigjay
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Member # 6110
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posted
whoops sorry, i thought i had it in my sig. its an 89 notchback, a stock 5 liter makes what? 215-225 hp? after trying to figure it out it seems that the 19lb injectors would be good to 300 flywheel or so right? thats assuming the pump can keep up with them and maybe the use of an adjustable regulator just to make sure.
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if ford is FOMOco, that means honda is HOMOco
Posts: 132 | From: Escalon, 209 | Registered: Oct 2005
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