They're also stock turbos. Saying you can't compare a stock turbo Duramax to a stock turbo 6.4 PowerStroke is ridiculous, and comparing a stock turbo 6.4 to an MPI equipped twin turbo Duramax is even more ridiculous.
Has the DMax been dethroned ?
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I read on another site last night a guy said he was getting 35psi boost from his stock . I know i cant get 35psi out of my ihi .so obviously they have an advantage there . more boost = more power how ever you look at it
your wrong my friend increase Boost does not equal increase HP.
increase air flow = increase hp
IMO cant judge a trucks HP by what boost it makes
more boost means more restriction somewhere in the plumbing. Like Adam said, all comes down to how lbs of air/minute you can move.....
Comparing boost numbers is only somewhat accurate when you are comparing two identical motors and turbos.
your wrong my friend increase Boost does not equal increase HP.
increase air flow = increase hp
IMO cant judge a trucks HP by what boost it makes
exactly. Our 470hp 60 series Detroit makes maybe 20-30psi under load. Heck it makes 15psi when engine braking.
At the same time ive watched the Kenworth at work with a 550 C15 Twin turbo CAT and a pittsburgh power box make 62psi with a light load.
And if theres more restriction theres probably more heat. The more heat there is in the intake charge the less dense it will be which means less ir can be packed into the cylinders therefore less fuel can be burned and less power is made.
Or im completely wrong.
What i dont get is that if Fords new turbo setup truely is sequential then why is it that way? IIRC it was Porsche that originally tried it many years ago and said it was very ineffiecient, expensive, bulky and an overall waste of engineering. But I guess thats what they do at Ford, that and forget to put two extra head bolts per cylinder.
Is the ford sequential or compound? I thought it was compound
Toyota Supras came through with sequential turbos.
Is the ford sequential or compound? I thought it was compound
ford and Cat both call it sequential because the turbos light in sequence
but by deffinition they are both compounds
ford and Cat both call it sequential because the turbos light in sequence
Haven't looked at Cat so I can't call them stupid but ford are a bunch of tards....the turbos are clearly compounded
cats acert twins look like 5.9 tiwns on steroids. with a JWAC (jacket water aftercooler) W-T-A intercooler befoer hte ATA intercooler... why because acordign to them discharge air temp from the primare is 500-600*
me thinks they are overspeeding the small charger
see if i can get picturesthis is cats C15 ACERT with sqeuntial twin turbos
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Agreed on the "more heat, less power" thinking. Drag race on an 80* day, then race on a 60* day.....
I remember reading about VVT's on the old Chrysler 2.2/2.5 engines, and how they didnt work worth a hoot. Funny how with modern computer controls, an old idea can get new life....