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cplux
Regular

Registered:
September 2002

Better economy - custom manifold	Wed, 27 October 2004 12:07

Hi all I'm chasing suggestions/opinions on how to gain some better economy in my supercharged 4 cyl 4y-c hilux. Current setup is using ea falcon throttle body injection, wolf3d computer and sc14 charger. According to the guy who tuned it up these injectors are running flat out at high revs (he actually said he is driving em 130% of wolf max setting). In regards to this i have no idea what the actual rated flow of these is but they are off a 3.9l six cyl. I am also mainly as a temp solution running water injection. (done post tune) Firstly I am going to intercool it with a liberty water/air cooler. Car had alot of problems with pinging when dynoed as air temps soared. Hopefully i can reduce fuel rate alot if charged air is cooler. I was also thinking of using a 4y-e inlet manifold & injectors (possibly upgraded to whatever ijectors will fit), so i can have an injector per cylinder. This will also require changing to dual pulse ign signal. Problem with this is i will have to custom make the plenum/throttle body part as the 4y-e one will stand too high in the engine bay for intercooler and also the air intake would be on the wrong side. Suggestions?? It was also suggested to me by the mechanic to run dual coil or better yet direct fire ignition, instead of the current dizzy/signal coil/pulse setup. [Updated on: Wed, 27 October 2004 12:08] [Report message to a moderator]

cplux
Regular

Registered:
September 2002

Re: Better economy - custom manifold	Wed, 27 October 2004 12:12

pic of current setup pic of 4y-e [Updated on: Wed, 27 October 2004 12:14] [Report message to a moderator]

mrshin
Forums Junkie

Location:
Montrose, VIC
Registered:
May 2002

Re: Better economy - custom manifold	Wed, 27 October 2004 13:45

First up, PLEASE bin that horrible Falcon 'electric carb' - NOW! You could well use the 4Y-E manifold, but it would probably also not be too difficult to make something up that better fits in with everything, that's if you're handy with the welder, grinder, etc. Otherwise, it might get a bit expensive paying someone else! [Report message to a moderator]

RA28
Forums Junkie

Registered:
May 2002

Re: Better economy - custom manifold	Wed, 27 October 2004 14:36

If you have a fairly simple direct injection manifold ( I have nfi about "Y" engines...) then for sure swap to that. You should get more power, which will translate to economy if you lift your foot For god's sake, get an intercooler... more power for sure and if the tuner richened the mixture to try to combat the detonation then you'll pick up fairly large increases in economy. you may also get the oppertunity to wind up the boost Tim. [Report message to a moderator]

cplux
Regular

Registered:
September 2002

Re: Better economy - custom manifold	Wed, 27 October 2004 20:31

pic of my existing manifold that falcon throttle body bolts to. [Report message to a moderator]

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