stock hp numbers

[CUMMINS_KILLA99]

ive always heard and read that the stop hp numbers for my 99.5 7.3 were 235 yet i noticed yesterday the vavle cover it says bhp 250@2700 rpms whats the deal i know its only 15 hps but why would the advertise 235 when the covers say 250

[CoalRollinRoosterCruiser]

Is yur truck a 6 speed? or an auto

[blowinsmoke4life]

the hp numbers on the valve cover is the hp made out the flywheel

[blowinsmoke4life]

you lose like 13% or something liek that through the rear wheels and its like 18% on fwd and 23% for awd somthing close to that

[CoalRollinRoosterCruiser]

Originally Posted by blowinsmoke4life

the hp numbers on the valve cover is the hp made out the flywheel

Yeah, but some year/transmission combo's had different HP rattings at the flywheel hp.


My 2000 is 235 at the flywheel.

[CUMMINS_KILLA99]

99.5 and its an auto i always thought it was 235 at the flywheel but like i said the international sticker on the vavle cover says 250

[blowinsmoke4life]

Originally Posted by CoalRollinRoosterCruiser

Yeah, but some year/transmission combo's had different HP rattings at the flywheel hp.


My 2000 is 235 at the flywheel.

yeah i knew that i was jus tellin him its not whp it bhp which is flywheel hp

[elibenson]

Depending on the gear ratio, and transmission, you may have a small increase or decrease. Like in 2008 the Auto trucks had 350, and the manual trucks had 325. To confuse it more, depending on the gear ratio, the 4.88 trucks had 325 even if auto.

so who knows?

[blowinsmoke4life]

Originally Posted by elibenson

Depending on the gear ratio, and transmission, you may have a small increase or decrease. Like in 2008 the Auto trucks had 350, and the manual trucks had 325. To confuse it more, depending on the gear ratio, the 4.88 trucks had 325 even if auto.

so who knows?

yeah but that still wouldnt affect flywheel hp jus whp, and also a vehicle true whp can never be found bcuz even a dynometer cant read the actrually hp to the wheel it jus read the load being put on the roller whjich is then converted to hp and torque

[alberta 7.3]

I also read somewhere that the 2002 and later? models had higher HP ratings with a new calibration.