RE: [DMCForum] Re: 30 MPG DeLorean? (Revisited)

["Dave Stragand" <dave.stragand@xxxxxxxxxxxxxxx>]

I think we drove between 60 & 65.

 

Have you considered the Edelbrock carb (basically AFB clones)?  No power
valves, and a HUGE difference in throttle response.  I have had 4
Holleys, and once buying the Edelbrock I'll never even consider another
Holley.

 

-Dave

 

________________________________

From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx] On
Behalf Of content22207
Sent: Saturday, July 02, 2005 11:25 PM
To: DMCForum@xxxxxxxxxxxxxxx
Subject: [DMCForum] Re: 30 MPG DeLorean? (Revisited)

 

You obviously were driving less than 80. I really don't think those
numbers are obtainable at 3,000 RPM.

I was averaging 21-22 MPG around 2,500 RPM, so obviously metering has
improved. I'm not going to experiment with other power valves because
the engine rev's to 6,000 RPM no sweat, and the car absolutely tears
it up in 1st gear. There's a slight stutter if you goose it at the
stoplight, so my accelerator pump could stand to be a little richer. I
just ease that initial throttle plate crack, then floor it.

BTW: I made it up here in 6 hours. That translates into 65 MPH average
(time lost in gas stops -- "Hey man, is that a DELOREAN?"). I dropped
it back to 2700 RPM in Virginia, which in theory translates around 70
MPH, but given the overall transit time I'm beginning to think the
much vaunted RPM xRef chart is a little off. Jason Perkins did report
his speedometer pegged on the way home from Pigeon Forge. Ah, the
ignorant bliss of a broken angle drive...

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "Dave Stragand" <dave.stragand@xxxx>
wrote:
> Bill,
> 
>  
> 
> I know you don't believe it, but I was at nearly 30 miles per gallon
> when I drove down to Pigeon Forge,.. And that was on each tank of gas.
> 
>  
> 
> -Dave
> 
>  
> 
> ________________________________
> 
> From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx] On
> Behalf Of content22207
> Sent: Saturday, July 02, 2005 2:13 PM
> To: DMCForum@xxxxxxxxxxxxxxx
> Subject: [DMCForum] 30 MPG DeLorean? (Revisited)
> 
>  
> 
> Drove up to DC last night. Prior to leaving town I disabled a device
> on my carb known as the "power valve" (it's just a diaphragm that
> meters more fuel when manifold vacuum drops, usually due to fuller
> throttle plate activation). Engine predetonated slightly under hard
> acceleration, so I bumped the jets up slightly. Even with the larger
> jets (4% larger than I had been running), fuel economy jumped to 24.5
> MPG. And that was 2750-3000 RPM. Had I run closer to 2000 RPM, I might
> well have approached 30 MPG.
> 
> In other words, something in the neighborhood of a 30 MPG DeLorean may
> indeed be possible. Performance will suffer accordingly, but if fuel
> economy is your primary goal it could be done. I like to accelerate
> and drive fast myself, so 24.5 is good enough for me.
> 
> (Note to Rich Acuti: That little silver blur in the left lane will be
> me).
> 
> Bill Robertson
> #5939
> 
> 
> 
> [Non-text portions of this message have been removed]





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