[DeTomaso] Mass-Flo injection was "speaking of crate motors-jUSTREBUILD YOUR CLEVELAND"

[Göran Malmberg]

1
What is the best fuel delivery system and manifold for the application I 
want to build?
2
*stock Cleveland block bored, stroked and to be assembled by Russ Fulps. 
(new crank not the offset ground stock crank)
3
*roller cam as discussed before (304 with 110 lobe separation)
4
*Blue Thunder Heads
5
*approx. 11:1 compression
6
*for now lets also say 180 headers that will not constrict the high end as 
7
I know I will be walking a fine line with that compression ratio and running 
pump gas so I am worried about the correct fuel mixture being delivered to 
all cylinders equally.  I want to maximize the power potential in this 
engine build and not leave anything on the table.
8
Now before you diehard EFI guys chime in....I do believe fuel injection can 
provide the best efficiency and power in a perfect world.  I am interested 
in the Mass-Flo system because I thought it could be the ultimate fuel 
delivery system for my application AND it cost $3,100 (including ignition).
Any price above this and then I have to go with the cost vs. HP gained 
argument......just not worth the coin.
9
I also liked the low brain power needed to setup the system as I don't chew 
Thermodynamics equations for breakfast like a lot of you rocket science guys 
do! ;o)

Thanks for the input
John
4488
1
The "best" thing to use, is the common question asked and then the diehard:s com in
and recomend what they love. This is an impossible question to answer as the questioner 
as John says, I am  not a rocket since guy, therfor the "ultimate"system could not be
served for brekfast.
A
I try to answer anyway, and appart from other circumstances. A fuel injection system
is the best.
B
The best manifold is a manifold that has the right length channel, the right port area and
the right runner entry. Othrwise we are talking the cheapest, easiest to mount and aviability.
A port injection system is not  dependent on plenum design as a carb. However, a good 
reason for a single carb design intake is that a single carb style trottle body can be used.
As the manifold is dry, we can use the plenum solely for tuning since there are no carb
related problems like acc pump enrichement or booster signal. 
If using IR design we got the freedom to design a large plenum that only serves the perpose
of serving the trumpests with "diffussed" air. Which means it can be made veri large, and
easely adapted for cool air feed. 
2
Cant tell.
3
Ok.
4
Probably ok. 
5
Ok.
6
180:s is allways a little to long, so they should be custom fabricated to for better designs by 
somone who knows a few things about headers. And also knows what a collector and muffler
is. Exhaust is more important than moost things on a big cam motor. It is easier to tune
a 180 sytem due to the even pulsing, but it dossen nessesarly give higher peak Hp. It is also
quiter by nature, which makes a more freflowing silencer possible. 180:s may therfore
giv more Hp compare to sound level on a street machine.
7
Yes, you may walk on a rope here. But I shouldnt be to worried. The world dosent collapse 
if you go wrong. 
One great feature with EFI is the ignition timing map. For some reason rearly discussed in 
the forum. About as important as fuel delivery.  It is so important that I could allmost run a 
carb if I only had the opportunity of using the timing map of my efi unit.
As for high compression, you should look closley to the combustionchamber of the heads,
and order piston for custom matching. Here is a lot of the secret about knocking engines.
If you are scared of EFI tecnology, this area is abou twice the magnitude in knowledge.
Talk to Daniel J, he seems to be the guy to hire. 
I my world there are no such things as "BOLT ON PARTS". They are just more or less good
starting points.
8
As you not supercharge your engine, TPI sensor is my recomendation with big cams. Also,
run peak and hold when using large injectors. Use PARALLELL fuel rails, to the pressure 
regulator return line. 
9
It is a bit of a problem here, we must use knowledge. And we cant just buy "the right
ultimate parts" for sucsess like the advertising try to fool people to believe. So the best thing
is to have somone to assist during the build, if not building a totally stock motor. Then you
ar also able to handle the motor better during its life spann.

Goran Malmberg