[Spridgets] Runs great, but terrible mileage - Weber 40 for sale

[uniquelittlecars at yahoo.com]

Please do not take this post wrong.
 
I am very curious your post.
 
When do you fill up?
 
According to the figures you sent you were under 27 mpg at 200 miles.
I own a Morris Minor rag top. My tank is only .point 6 gallons bigger.
Your tank is listed at 7.2 - mine is at 7.8 and the Morris has more wind
resistance.
I get better mpg then you have stated with 1973 1275 motor & tranmission.
I run at 20-25 over all with Town & Freeway driving.
Running PCH at posted speeds i get 30.7 MPG - last checked
I just had the car tuned so i think i will get better the next time i check.
I do have a 3.90 rear end and the stock 4 speed rib cage transmission.
The running gear is 73 midget with no smog equipment.
My car is not as heavy as the sprite but lighter then the midget.
Both specs are with in  a couple of hundred pounds which is not much.
I am wondering why your mileage is so far off from my car.
Do Webbers eat that much more gas over the SU carb's?
I thought about installing a Weber 40 & was told not to if i wanted any mleage
at all.
I have a weber 40 cleaned & rebuilt with the manifold i would like to sell.
If no one gives me what i want for the set up. i will be putting it on EBay in
the near future.
I would sell the carb & manifold that have been bead blasted, Cleaned and
rebuilt for $300.
That is less then the carb sells for on Ebay - if interested contact me off
line @
uniquelittlecars at yahoo.com
 
Vigil 
 
 
 
 


--- On Thu, 9/16/10, David Riker <davriker at nwi.net> wrote:


From: David Riker <davriker at nwi.net>
Subject: Re: [Spridgets] Runs great, but terrible mileage
To: cmanuel at wi.rr.com, spridgets at autox.team.net
Date: Thursday, September 16, 2010, 9:38 PM


That's exactly my in-town mileage.  Short trips, lots of spirited starts,
reving up to 4k or more before shifting.  I have a Weber DCOE40, they tend
to use more fuel than SU's  due to the true accellerator pump and richer
mixture.  About 120 miles is all I'll push it on in-town driving.  On a
highway trip, my best fuel economy is usually when I am cruising above 70
mph, the weber and cam seem to come together and be at their most efficient.
Even at that, 28-30mpg  is tops, putting the range at about 200 miles.

smog vs. no smog is very little difference in mpg, as the smog pump doesn't
cause that much drag.  By '73 the compression ratio was lower than earlier
cars, and the ignition timing less advanced.  Be sure that the SU's are set
correctly, and adjust the timing properly, and the mileage will be the best
it can be with out other modifications.

David R.


----- Original Message -----
From: <cmanuel at wi.rr.com>
To: <spridgets at autox.team.net>
Sent: Thursday, September 16, 2010 6:56 AM
Subject: Re: [Spridgets] Runs great, but terrible mileage


> The engine is a 1275 from '73, desmogged.  Stock SU carbs, ribcase from
> same year as far as I can tell, original stock rear end.
>
> I figure I'm getting around 18 to 22 mpg
>
> ---- Bill L <pythias at pacifier.com> wrote:


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