Quote:
Originally Posted by Nerys
its fuel injected?? I am curious what more fuel pressure would do and how in the world would I alter that? another pump inline or something??? and why would E10 need more fuel pressure than E0 (just curious)
Why would a hotter engine help? again just curious why would it not need to be hotter on E0? The cherokee already runs (factory) at just below boiling so I can't really make it run any hotter without cavitations issues in the water pump if the coolant start to bubble. (it runs at around 210 from the factory the I6 is a hot running engine)
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How would it not help? Heat helps assist combustion and reduces how much spark and advance you need, going richer helps ignite a mix, leaner may help it burn hotter though. More pressure means more fuel, richer mix. A richer mix nets better fuel economy during acceleration and depending on how lean you are potentially during cruise.
Voltage changes or a lift pump "may" slightly increase pressure.
Also how do you really KNOW its 210? The thermostat onboard is notoriously inaccurate, most systems are under pressure so cavitation is usually not an issue until about 230ish. (sometimes higher)
Quote:
Originally Posted by Nerys
experimentation costs MONEY that I am not in a plentiful supply of HENCE getting a geo metro :-) hehe so don't take my "why why why" as an offense. :-)
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In the last few weeks have you ever eaten at a fast food place? For the price of a hamburger you can buy enough Marvel Mystery Oil to dope 40 gallons of fuel or more. IT DOES Work on most older vehicles and DOES NOT COST MASSIVE AMOUNTS TO OBTAIN.
You are right that it may or may not pay for itself, past experience tells me it costs less than what it would take for you to get E0. It worked wonders on our 93 suburban which always had an incorrectable miss on ethanol and passed vacuum tests. We got about 19-24mpg over the life of the vehicle with MMO in the tank which is above average so I'm told (at least for a 350 v8).
Also A little top lube that happens to clean the motor isn't a bad thing, it used to be a pretty standard practice and does increase compression and reduce wear.
I am not alone in using MMO as a snake oil, its one of a couple that actually work and it isn't very expensive either. Sadly its effectiveness was reduced slightly when they took all the sulphur out but it still seemed to work on my Buick.
Cheers
Ryan