Re: [DML] Performance mods

["Donald Ekhoff" <ekhoff@xxxx>]

I have just finished 'P & Ping" a set of heads with the intention of puting
together a decent twin turbo motor. The project started as an Island twin
turbo with added intercooler which was very flow restricted in the way the
intercooler was incorporated.

IMHO there shouldn't be a problem with too much cross-section killing
velocity in our motors. More to the point is that there are many velocity
killers in the form of obstructions and pinch points in the stock exhaust
path. I think a well thought out porting job will maintain the desired
velocity with very little risk. As well, the stock exhaust manifolds are
certainly not great and the Island are worse. After evaluating the engine
as installed in the engine bay I may be converting to Eagle Premier
manifolds as they look like cast headers and should flow better. They will
need some tricky adapter work to mount the turbos however. Then I believe
exhaust velocity will be served. I look forward to the results and will
report as work is completed.

Don Ekhoff
#6543


----- Original Message -----
From: "B Benson" <delornut@xxxx>
To: <dmcnews@xxxxxxxxxxxxxxx>
Sent: Monday, April 14, 2003 2:27 PM
Subject: Re: [DML] Performance mods


> One has to be careful with things like porting and polishing when using a
> turbo. Velocity plays an equal role with overall exhaust flow in regards
to
> producing a desired level of boost with a minimum of lag. I won't say that
> things can't be improved on by 'P & P ing' but only a lot of experiance
with
> a particular engine will tell you how much is too much.
>
> Bruce Benson
>
> > The key is that DMCH is NOT proponent of turbocharging
> > power-ups (still quoted on their web site). The mods
> > are not completely exclusive, as the port and polish,
> > and exhaust mods should be ammenable to turbocharging,
> > but the hot cam would not.
> > Pete
>
>
>
>
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