hp estimation-help needed
11-07-2002, 07:14 PM
#1
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hp estimation-help needed
just wondering :
540 cu.in with dart heads + 10 lbs boost on top of it with optimum cam and carbs. how many hp it has to generate?!?
can it produce around 850hp?
540 cu.in with dart heads + 10 lbs boost on top of it with optimum cam and carbs. how many hp it has to generate?!?
can it produce around 850hp?
Last edited by timucin; 11-07-2002 at 07:19 PM.
11-08-2002, 11:42 AM
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Hey Timicun,
What kind of cam and what compression ratio are you running ? If I can broom my boat this spring I will start on another 540 for whatever new boat I end up with. I plan on supercharging and also want to make around 850hp.
What kind of cam and what compression ratio are you running ? If I can broom my boat this spring I will start on another 540 for whatever new boat I end up with. I plan on supercharging and also want to make around 850hp.
11-08-2002, 06:44 PM
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planning to build engines : just an idea for the moment. dont have the chargers or cam but perhaps will be around:
comp. around 8:1
cam around: @.050....240 , 632 lifts in/ex.
superchiller
msd boost retarder box for safety
our octane around :90 ( dunno if there are different standarts for this.but our gas is not very cool)
what boost would you use with pump gas ?
comp. around 8:1
cam around: @.050....240 , 632 lifts in/ex.
superchiller
msd boost retarder box for safety
our octane around :90 ( dunno if there are different standarts for this.but our gas is not very cool)
what boost would you use with pump gas ?
11-08-2002, 10:03 PM
#10
Your like 13.5 to 1 CR with those numbers. Alltitude can change this but that is way to much CR for pump gas. I think I would build as big a cubic inch motor you can and then keep the boost low. Thats how engine builders make the big HP numbers and advertize running on 87 octane. What everyou do I would invest in some pyrometer gauges and knock sensors. Might save you some broken parts down the road. 850hp from a 540 does not need that much boost as the other posts have stated. As long as you have a set of good flowing heads.
Back4more what heads are you running?
Back4more what heads are you running?
