BTW, do Magnum engines have forged pistons, hyperneutatics or plain old cast
ones?
I wouldn't run more than 6 psi with cast pistons and even then I'll be VERY
careful about timing and fuel.
Alan
-----Original Message-----
From: HEMI@charter.net [SMTP:HEMI@charter.net]
Sent: Thursday, January 21, 1999 3:48 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: Turbochargers
I don't think you'll be pushing 15-16PSi on a Magnum V8 unless you
have it
forged everywhere and the compression ration is at about 8 to 1 .
Ours are
at 9 to 1 right now I believe .
I have heard good things about the VNT though , too bad Chrysler
sold the
technology to Honda....those morons !
When I talked to the guy today , he was talking about running a
single
turbo with a wastegate . He said that twins wouldn't do much more
than a
single and that I shouldn't run more than 5 or 6 PSI on the stock
motor
unless I planned on doing some major internal mods .
At 02:19 PM 1/21/99 -0800, you wrote:
>
>If any of you are serious about turbocharging your Dakota, I'd
highly
>recommend checking out the Garrett VNT25 as a possibility in a dual
>configuration, or the VNT 45 (normally used in diesels, but you
need a bigger
>turbo for a V8) in a single configuration. Their website is at:
>
>http://www.alliedsignal.com/business/turbo/index.html
>
> The reasons for my recommendation are simple. I owned a VNT
(Variable
>Nozzle Turbo) Shadow. The variable geometry of the turbo charger
has some
>impressive benefits. First off: NO WASTEGATE is on the turbo.
This means
>increased reliability and dependability. Secondly: a larger VNT
turbo spins
>up as fast or faster than a smaller normal turbo, yet delivers the
air at
full
>boost of a large turbo. This almost eliminates turbo lag. Without
a
>wastegate you can also argue that you have made no significant
changes to the
>exhaust flow (wastegates can dump exhaust into the open air-
depending on the
>configuration- without any emissions checks!)
> The turbo on my Shadow would provide almost 20 psi to the engine
except an
>air bleed valve kicked in at 13 psi so as not to over pressurize
the engine.
>The 2.2L engine normally pumped out about 120hp, but with the turbo
it hit
>175hp. Putting a pair of the VNT25s on the 318 or 360 would make
the engine
>into a monster. Remember, turbo's are much more capable of
producing PSI
than
>superchargers, so while a Vortech system may crank out 8-10psi of
boost, the
>large turbos will glady pump out 15-16psi all day long...
> The problem is the EPA (what else is new) and if you can get an
exemption
>for the modification... good luck.
>
>Shaun H.
>
>
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Jack Hilton III
http://webpages.charter.net/hemi/jbd1.html
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:12:10 EDT