[Diy_efi] Sequential fire setup
Programmer
nwester at eidnet.org
Mon Aug 5 17:22:29 GMT 2002
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The car will weigh 2250-2350lbs & we're hoping for 1200hp @8500rpm =
from our 565 BBC.=20
The throttle bodies (4) each have 2 two inch holes located directly =
over the fabricated intake runners.
The injectors we're starting out with are 88lb & the ecm is a FAST =
sequential fire. (http://www.fuelairspark.com/)
It's gonna be quick !
I guess I'm asking any of your personal opinions of this since you =
seem to have full knowledge of EFI systems.
It seems everyone we've spoken with so far gives us vague =
information-----for example:=20
How much fuel pressure ?
40 PSI would/should require a 92 lb/hr injector for a richer running =
.55 BSFC engine. Can you give me some
specifics on your engine combo ?? I can run some numbers and see what =
it's going to do...you're going to
need a mondo fuel pump to feed this monster.
What is the optimum EGT ?=20
That's a good question. On C12 we're running at 1240-1300 F, I don't =
have any alcohol numbers
yet since we've exhausted the tuning on C12...We jetted up, jetted =
down and that's where it wanted
to be.=20
Open or closed loop if the engine is only run at WOT ?
We're not worried about emissions here, right ?
Lyndon
Westers Garage (the Specialist)
MAHA Dyno
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<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>The car will weigh 2250-2350lbs & =
we're=20
hoping for 1200hp @8500rpm from our 565 BBC. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The throttle bodies (4) each have 2 =
two inch=20
holes located directly over the fabricated intake =
runners.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The injectors we're starting out with =
are 88lb=20
& the ecm is a FAST sequential fire. (<A=20
=
href=3D"http://www.fuelairspark.com/">http://www.fuelairspark.com/</A>)</=
FONT></DIV>
<DIV> </DIV>
<DIV><STRONG>It's gonna be quick !</STRONG></DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV><FONT face=3DArial size=3D2>I guess I'm asking any of your =
personal opinions=20
of this since you seem to have full knowledge of EFI =
systems.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>It seems everyone we've spoken with =
so far gives=20
us vague information-----for example: </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>How much fuel pressure ?</FONT></DIV>
<DIV> </DIV>
<DIV><STRONG>40 PSI would/should require a 92 lb/hr injector for a =
richer=20
running .55 BSFC engine. Can you give me some</STRONG></DIV>
<DIV><STRONG>specifics on your engine combo ?? I can run some numbers =
and see=20
what it's going to do...you're going to</STRONG></DIV>
<DIV><STRONG>need a mondo fuel pump to feed this =
monster.</STRONG></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> What is the optimum EGT ? =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><STRONG>That's a good question. On =
C12 we're=20
running at 1240-1300 F, I don't have any alcohol =
numbers</STRONG></FONT></DIV>
<DIV><STRONG>yet since we've exhausted the tuning on =
C12...We jetted up,=20
jetted down and that's where it wanted</STRONG></DIV>
<DIV><STRONG>to be. </STRONG></DIV>
<DIV><STRONG></STRONG><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Open or closed loop if the engine is =
only run at=20
WOT ?</FONT></DIV>
<DIV> </DIV>
<DIV><STRONG>We're not worried about emissions here, right =
?</STRONG></DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV>Lyndon</DIV>
<DIV>Westers Garage (the Specialist)</DIV>
<DIV>MAHA Dyno</DIV>
<DIV> </DIV></FONT></DIV></FONT></DIV></BLOCKQUOTE></BODY></HTML>
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