stupid turbo question again - PeachParts Mercedes-Benz Forum

xtreme barton · #1 12-06-2007, 01:41 PM

thanks for the info man !! i appreciate it very much .. this is something i really wanna do ..

do you have pics of the extra injectors ? and what is that tube t'ing off your water reservoir ?

how big is your intercooler ? and where did you locate it ?

i was thinking of using stock manifolds and right after the exhaust bolts to it running the exhaust pipe back up that way i could save the hassle of building new headers ... think that would work just fine ?

so each of your turbos is only putting out 3.5 psi of boost ?

is it possible to over spin a turbo ? for example if i had a small turbo but hooked up both exhaust to it .. would it screw anything up ?

thanks for your help .. im dying to get started on this .. just a uber noob when it comes to this stuff ... im trying to read as much as i can but its hard to find good info

RBYCC · #2 12-06-2007, 04:40 PM

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Originally Posted by xtreme barton

thanks for the info man !! i appreciate it very much .. this is something i really wanna do ..

It's a lot of work and very costly if you start from scratch and have to fabricate everything.
Easily about $10K

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do you have pics of the extra injectors ?

It's a custom casting that holds the two additional injectors.
It replaces the rubber boot between the air valve assembly and the throttle body.

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and what is that tube t'ing off your water reservoir ?

Return lines for the turbo water cooling.
Turbo also takes an oil supply off of the filter housing.

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how big is your intercooler ? and where did you locate it ?

About two feet long.
It mounts on the lower passenger side chassis rail, parallel to the engine.
There is a fiberglass shroud that creates a plenum for air intake from the grille area.

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was thinking of using stock manifolds and right after the exhaust bolts to it running the exhaust pipe back up that way i could save the hassle of building new headers ... think that would work just fine ?

You're going to have to fabricate a manifold that first mounts the turbo.
The down pipe then comes off the turbo.

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of your turbos is only putting out 3.5 psi of boost ?

Each is fixed at 7PSI boost and feeds pressure to one side of the intercooler.
A larger single pipe exits the intercooler and feeds the boost to the plenum on the air valve assembly.

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possible to over spin a turbo ? for example if i had a small turbo but hooked up both exhaust to it .. would it screw anything up ?

Not sure what you mean !!!

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thanks for your help .. im dying to get started on this .. just a uber noob when it comes to this stuff ... im trying to read as much as i can but its hard to find good info

First decide what you're trying to achieve.
Possible better not to attempt to mod your 300SE and look at buying a 400E. E400 or 500E W124.
Will give you more performance at less cost then what you want to do !!!