Holley Projection4

[Mark S. Riley]

Helped tune a ProJection 4 on a LS6 454 and it worked very well. Much better
than the carburetors that the owner had tried previously. I think where you
are going wrong is using the projection with a turbo, blower or any sort of
forced induction. With no map sensor, how can it sense pressure? It thinks
there is a vacuum all the time. I think I remember Holley stating in the
manual and in their catalog that the Projection systems were not suited for
use with a forced induction system. Mark
----- Original Message -----
From: "Adam Chant" <adam at mysaturn.com>
To: <gmecm at diy-efi.org>
Sent: Sunday, September 23, 2001 9:53 PM
Subject: Holley Projection4


> Does anyone have any expierence with the Holley Projection 4 Analog unit?
> We have a 307 built up with a 7:1 compression ratio and a T04 Turbo
powering
> it. FOR the life of me I can't get the damn thing to work. I have spent
way
> too much time on this and all I have learned is that the Projection 4 is a
POS!
> If anyone can help me I would appreciate it. If not we're going back to a
carb.
>
> I'll save the list the details, but if you know anything please contact
me.
>
> Thanks,
> -Adam Chant
> adam at antele.net
> --------------------------------------------------------------------------
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