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Re: turbo on 3.8 ltr v6
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CarGuru > Open discussion > Re: turbo on 3.8 ltr v6 24 April 2005 08:13:45

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Re: turbo on 3.8 ltr v6

Hsv054 24 April 2005 06:13:41
 "mark krawczuk" wrote: > i curious as to what size turbo would be needed to make approx > 500 hp > @wheels on a 3.8 ltr v6 commodore (holden) > i know other stuff would need to be done.. > thanks. > mark k > -- >
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Hey to get 500rwhp ull need 650hp at motor. Unheard of in V6 at the
moment. It depends on the motor as to what to do, the newer ecotecs
are stronger than buich motors but this is what ull need for buich
motor. Ull need monster turbo in vicinity of 700-750hp or a pair of
turbos 350-400hp rating ull need a fair whack of boost at least 14psi
(1 bar) probably more. Forged pistons, stronger rods, 4 bolt mains,
nitrided crank, big end bearings, little end bearings, head gaskets,
head bolts, fully worked heads, big exhaust, 50ib injectors, massive
fuel pump if not two, rising rate regulator, front mount intercooler,
blow off valve, probably external wastegate, larger intake manifold
(almost custom twin throttle manifold), probably other stuff but hope
this is helpfu, it will be an awesum beast to drive though. If u have
a factory superchargered motor unbolt supercharger and bolt on 1.9:1
roller rockers, springs GT30/40 externally gated turbo (20psi), ported
and polished heads, bore the block fit larger rings and ull be close
to 500rwhp, know a vt that did this minus boring and heads and 20psi
produced 440rwhp, ok have fun

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Flymx 24 April 2005 08:13:45 permanent link ]
 
"hsv054" <UseLinkToEmail@Aut­oForumz.com> wrote in message
news:1_534007_821e3­7a7c28a749385cac20ff­3ea65e6@autoforumz.c­om...> "mark krawczuk" wrote:> > i curious as to what size turbo would be needed to make approx> > 500 hp> > @wheels on a 3.8 ltr v6 commodore (holden)> > i know other stuff would need to be done..> > thanks.> > mark k> > --> >
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Hey to get 500rwhp ull need 650hp at motor. Unheard of in V6 at the> moment.

More like 600-620 .
As for not being heard of ???.. you have not spent much time around the
buicks have you .

It depends on the motor as to what to do, the newer ecotecs> are stronger than buich motors but this is what ull need for buich> motor.

So they will hold more than 6-650hp safely on a properly built stock block
then..

Ull need monster turbo in vicinity of 700-750hp

Why?? .. he wants 500 rwhp.. why over turbo a small V6 if you do not need
to, then you are into a serious hi stall convertor so it will not be a
complete slug in the lower rpms off the line.


or a pair of> turbos 350-400hp rating

Same thing.


ull need a fair whack of boost at least 14psi> (1 bar) probably more.

You just took this "fairly" inexpensive 500rwhp motor that he wants, to all
out race hi buck motor.. for no reason.



Forged pistons, stronger rods, 4 bolt mains,> nitrided crank, big end bearings, little end bearings, head gaskets,> head bolts, fully worked heads, big exhaust, 50ib injectors, massive> fuel pump if not two, rising rate regulator, front mount intercooler,> blow off valve, probably external wastegate, larger intake manifold

(almost custom twin throttle manifold),

There are street driven buicks in the nines with a single throttlebody.

probably other stuff but hope> this is helpfu, it will be an awesum beast to drive though. If u have> a factory superchargered motor unbolt supercharger and bolt on 1.9:1> roller rockers, springs GT30/40 externally gated turbo (20psi), ported> and polished heads, bore the block fit larger rings and ull be close> to 500rwhp, know a vt that did this minus boring and heads and 20psi> produced 440rwhp, ok have fun

This last suggestion almost makes sense .
But keep in mind boring a stock block makes it weaker, and also takes away
options if you have an oops , its one less bore you can do to fix it .
For the miniscule amount of power it will increase , leave it stock bore
until it needs to go to the "next" size up.




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CarGuru > Open discussion > Re: turbo on 3.8 ltr v6 24 April 2005 08:13:45

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