[Diy_efi] Sequential fire setup

[William Shurvinton]

I was thinking more about the inertial supercharging effects of air hooning
in at 150 MPH and pressuring the airbox. F1 boys reckoned they lost 40HP
when they had to cut holes in them after the Senna crash. Now that's at
180MPH, which a 1200 HP drag car should reach?

Not sure which entrance angle you mean: injectors to inlet port or inlet to
head. These are DTH TBs on a 4-pot so are in line with the port. The
injectors in the test runs are manually positioned whilst a dyno run is
taken, so a number of locations can be tried.

Bill
----- Original Message -----
From: Dave Dahlgren <ddahlgren at snet.net>
To: <diy_efi at diy-efi.org>
Sent: Monday, August 05, 2002 9:14 PM
Subject: Re: [Diy_efi] Sequential fire setup


> An air entry box for outside air is always a good idea as long as the
associated
> drag does not cost more power than the air box will make. I have always
heard
> the deal about 1% more density for 7 degree F changes but have not found
it
> quite that good so what i do  is use around 5 degree f for a 1% in the
fuel maps
> and actually start adding fuel back in as it goes over 135 degrees F on a
race
> car with fresh air intake.
>
> The injector location stuff has always worked from from SBC to BBC to
Cosworth
> and Ferrari.. I have no clue why it would not work other than a rather
poor
> entrance angle. I did on set of stacks at a 45 degree angle and man was
that a
> nightmare compared to 30 degrees..
> Dave
>
> William Shurvinton wrote:
> >



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