Re: [DMCForum] Re: Carb Options (Dave Stragand)

[DMCVIN6683 <dmcvin6683@xxxxxxxxx>]

Well you wont have to wait too long. Jeff is putting the car together 
and it is sold.

End of summer and you can see how it runs.

Mark V


On Jul 3, 2005, at 12:44 PM, content22207 wrote:

> I am curious how the throttle response is going to be with Jeff
> Friday's intake manifolds. Im' afraid that big plenum may act like a
> vacuum canister. My plenum is plenty huge (about 2 3/4" diameter), and
> I used to think that it slowed throttle response, but what I was
> actually feeling was that initial drop in the power valve (which in my
> case was way to rich). Now, I can almost floor it straight from a
> standstill (I can floor it straight from a standstill if I don't mind
> that momentary lag until the fuel catches up -- need a slightly
> stronger accelerator pump).
>

> Bill Robertson
> #5939
>
>> --- In DMCForum@xxxxxxxxxxxxxxx, "Dave Stragand" <dave.stragand@xxxx>
> wrote:
>> 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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>> ________________________________
>>
>>
>>
>> [Non-text portions of this message have been removed]
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