Re: [Amc-list] EFI on 195.6OHV...

[Wrambler242@xxxxxxxxxxx]

I ran 3/8" steel lines for fuel feed and return on mine.
Yeah, it is a PIA to do...
 I also knew it was overkill when I did it, I did it anyway :]

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrc II
" Chronic Pain Hurts"

 -------------- Original message ----------------------
From: Glen Hoag <hoag@xxxxxx>
> At 10:13 PM 1/3/2008, you wrote:
> >-- Glen Hoag <hoag@xxxxxx> wrote:
> >
> > > It could be done, but throttle body injection would certainly be much
> > > easier.  MegaSquirt would be the ideal controller for either
> > > scenario, because it is fully programmable with a laptop computer.
> >
> >Yeah, TBI is simply easier, though TPI is cooler :-)
> >
> >I've toyed with the idea of EFI for a long time but in the end stick with
> >carbs for the simple reason that I deal with computerized crap every day
> >and I genuinely like the organic low-tech of carbureted motors. EFI isn't a
> >single component like a carb switch, it's a whole system of subtleties that
> >I don't want in my favorite pasttime. And in early 60's cars (that are 40's
> >cars at heart :-) it just seems incongrous.
> >
> >But with a shot at 25+ mpg long-term-average a workable TBI system for this
> >motor might be worth it if I can reign in system sprawl. There's like three
> >wires needed to make the motor go right now. I like that! I don't want a
> >freaking harness on the head!
> >
> >But a little TBI with oxygen and coolant sensors, and one small box, maybe
> >I could live with that if it gave me SUBSTANTIALLY increased mileage. I
> >don't really care about a big increase in power. I have carbs down, my carb
> >cars always start perfectly and run great (as great as carbs ever do :-)
> 
> I can't guarantee increased mileage, but it stands to reason that 
> there would be some improvement.  With a wideband oxygen sensor and 
> controller, like the Innovate LC-1, you can run quite lean at cruise, 
> which would help on the mileage issue.
> 
> 
> > >From what I read I worry about idle problems, and hours upon hours of
> >laptop fiddling maps. Playing with computers stopped amusing me a decade
> >ago...
> >
> >But I'm again doing online research (and your page last night; if I go this
> >route I'll probably buy preassembled!).
> >
> >I don't like the high-pressure fuel plumbing I'd have to do. I also don't
> >understand why everyone says I must increase fuel delivery line size, when
> >I am not going to be consuming more lbs/hour of fuel; probably less! I have
> >vacuum wipers and will keep them; it's gotta work with that. It's gotta
> >work with an old-style distributor (with Pertronix). Etc....
> 
> I agree about fuel line size.  Most people install MegaSquirt for 
> more power, so they would need more fuel.  If you need to plumb a 
> return line, you would have to increase the supply line, but I don't 
> think that's necessary with most TBI setups. I haven't gotten around 
> to installing my own system yet.  Too busy building them for 
> others.  (The cobbler's children have no shoes.)
> 
> With the v3 board, you can lock the distributor advance down and use 
> MegaSquirt to control the coil as well.  One wire out of the 
> Pertronix device and one wire into the coil.  You can run it in fuel 
> only mode, if you don't want to add ignition control.
> 
> 
> >Too many variables at this point; if I get confident I can knock that down
> >to managable I may go the EFI route.
> 
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