[Diy_efi] Sequential fire setup
mazak
rroberts2 at charter.net
Sun Aug 4 16:36:06 GMT 2002
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Hello
After much thought my best friend & I have decided to put sequential =
fire EFI on our drag car.=20
I found this---> http://yarchive.net/car/fuel_injection.html
Very nice information---I learned more from this than anything else I've =
read.
We've already built a 91 Corvette drag car with a L98 TPI (batch fire) & =
had a little success. The owner didn't want to dyno the engine so =
everything has been a hit-or-miss considering our limited knowledge of =
EFI. We're fully aware of the basic theory & operation but since I read =
the post about sequential fire I've begun to wonder if there's any =
advantage over batch or bank fire.=20
Here's what we're planning......
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/)
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: What injector angle ? How much fuel =
pressure ? What is the optimum EGT ? Open or closed loop if the engine =
is only run at WOT ?
I've got some general ideas about the answers to these questions but no =
rock-solid advice.
We would gladly compensate the right person that would work closely with =
us to get maximum HP.
Weeks could be spent on the dyno without some sort of baseline =
information.
Also, any tips or links to other online information & articles would be =
greatly appreciated.
Anyone interested in helping please contact me asap.
Thanks in advance
Ray Roberts
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<META content=3D"text/html; charset=3Diso-8859-1" =
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>
<DIV>Hello</DIV>
<DIV><FONT face=3DArial size=3D2>After much thought my best friend & =
I have=20
decided to put sequential fire EFI on our drag car.</FONT><FONT =
face=3DArial=20
size=3D2> </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I found this---> <A=20
href=3D"http://yarchive.net/car/fuel_injection.html">http://yarchive.net/=
car/fuel_injection.html</A></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Very nice information---I learned more =
from this=20
than anything else I've read.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>We've already built a 91 Corvette drag =
car with a=20
L98 TPI (batch fire) & had a little success. The owner didn't want =
to dyno=20
the engine so everything has been a hit-or-miss considering our limited=20
knowledge of EFI. We're fully aware of the basic theory & operation =
but=20
since I read the post about sequential fire I've begun to wonder if =
there's any=20
advantage over batch or bank fire. </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Here's what we're =
planning......</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The car will weigh 2250-2350lbs & =
we're hoping=20
for 1200hp @8500rpm from our 565 BBC. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The throttle bodies (4) each have 2 two =
inch holes=20
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><FONT face=3DArial size=3D2>I guess I'm asking any of your personal =
opinions of=20
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 us=20
vague information-----for example: What injector angle ? How much fuel =
pressure=20
? What is the optimum EGT ? Open or closed loop if the engine is only =
run at WOT=20
?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I've got some general ideas about the =
answers to=20
these questions but no rock-solid advice.</FONT></DIV>
<DIV>We would gladly compensate the right person that would work closely =
with us=20
to get maximum HP.</DIV>
<DIV><FONT face=3DArial size=3D2>Weeks could be spent on the dyno =
without some sort=20
of baseline information.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Also, any tips or links to other online =
information & articles would be greatly =
appreciated.</FONT></DIV>
<DIV>Anyone interested in helping please contact me asap.</DIV>
<DIV> </DIV>
<DIV>Thanks in advance</DIV>
<DIV>Ray Roberts</DIV>
<DIV> </DIV>
<DIV> </DIV></FONT></DIV></FONT></DIV></BODY></HTML>
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