Home » Public Forums » GMCnet » Slightly off topic, Toronado that gets 22 MPG
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| Re: Slightly off topic, Toronado that gets 22 MPG [message #260570 is a reply to message #260559] |
Sun, 31 August 2014 15:14   |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
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Bill Freeman wrote on Sun, 31 August 2014 11:31Maybe it was a typo and he really meant to say 12 mpg. I have a 78 Toronado XS and the only way it might ever see 22 mpg is going downhill.
Nah - not a typo. A missing decimal point, 2.2mpg.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Slightly off topic, Toronado that gets 22 MPG [message #260572 is a reply to message #260570] |
Sun, 31 August 2014 15:23 |
James Hupy
Messages: 6806
Registered: May 2010
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In the early 50's, with 200 cu.in. less displacement, no smog, good gas,
and a non spreadbore carb, it was common to see Cadillac make 19-20 mpg.
But a 500? Not even in his wildest dream.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Aug 31, 2014 1:15 PM, "Steve Southworth" wrote:
> Bill Freeman wrote on Sun, 31 August 2014 11:31
>> Maybe it was a typo and he really meant to say 12 mpg. I have a 78
> Toronado XS and the only way it might ever see 22 mpg is going downhill.
>
>
> Nah - not a typo. A missing decimal point, 2.2mpg.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
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| Re: [GMCnet] Slightly off topic, Toronado that gets 22 MPG [message #260585 is a reply to message #260572] |
Sun, 31 August 2014 17:35 |
cadelec
Messages: 303
Registered: September 2011
Location: Brisbane Australia
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[quote title=James Hupy wrote on Sun, 31 August 2014 15:23]In the early 50's, with 200 cu.in. less displacement, no smog, good gas,
and a non spreadbore carb, it was common to see Cadillac make 19-20 mpg.
But a 500? Not even in his wildest dream.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Aug 31, 2014 1:15 PM, "Steve Southworth" wrote:
might have to make that chevrolet cadillac motors in the 50s started withh 331 but would still get good milage with only a 2 barrel on top 
Trevor
Brisbane Australia
Siesta Koala 76 Edgemont (old Bobby Moores)
71 Cadillac Eldo Convert
58 Cadillac Eldorado Brougham Project
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| Re: [GMCnet] Slightly off topic, Toronado that gets 22 MPG [message #260589 is a reply to message #260585] |
Sun, 31 August 2014 18:16 |
James Hupy
Messages: 6806
Registered: May 2010
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I played fast and loose with the displacement. The early overhead valve
Cadillac v8 engines were 331 cu.in. The carbs were 4 barrel carter's. The
venturi size was 15/16". Both primary and secondary were the same size.
They did very well on fuel, better than the right angle Stromberg 2 barrel
carb on the low price models. Later on in the 50's, Cad had dual 4 barrels,
as well as 3 two barrel set ups. They had higher compression, and fairly
radical cam timing for the day. They darn sure would move those heavy
caddy's of the day. Particularly with the iron case 4 speed hydra-matic.
Strong tranny.
Premium fuel for sure.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Aug 31, 2014 3:35 PM, "Trevor Pordage" wrote:
> [quote title=James Hupy wrote on Sun, 31 August 2014 15:23]In the early
> 50's, with 200 cu.in. less displacement, no smog, good gas,
> and a non spreadbore carb, it was common to see Cadillac make 19-20 mpg.
> But a 500? Not even in his wildest dream.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
> On Aug 31, 2014 1:15 PM, "Steve Southworth" wrote:
>
> might have to make that chevrolet cadillac motors in the 50s started withh
> 331 but would still get good milage with only a 2 barrel on top :)
> --
> Trevor
> Brisbane Australia
> Siesta Koala 76 Edgemont (old Bobby Moores)
> 71 Cadillac Eldo Convert
> 58 Cadillac Eldorado Brougham Project
>
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| Re: [GMCnet] Slightly off topic, Toronado that gets 22 MPG [message #260617 is a reply to message #260589] |
Mon, 01 September 2014 08:21 |
robert caudle
Messages: 25
Registered: January 2004
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while not a GM product, I had a ford pickup truck with a variable venturi
carbeurator that got 18-20 aroundtown and slightly better on highways,
Ford and everybody else went to tbi and the variable venturi went away, My
truck had a 460 engine.
On Sun, Aug 31, 2014 at 6:16 PM, James Hupy wrote:
> I played fast and loose with the displacement. The early overhead valve
> Cadillac v8 engines were 331 cu.in. The carbs were 4 barrel carter's. The
> venturi size was 15/16". Both primary and secondary were the same size.
> They did very well on fuel, better than the right angle Stromberg 2 barrel
> carb on the low price models. Later on in the 50's, Cad had dual 4 barrels,
> as well as 3 two barrel set ups. They had higher compression, and fairly
> radical cam timing for the day. They darn sure would move those heavy
> caddy's of the day. Particularly with the iron case 4 speed hydra-matic.
> Strong tranny.
> Premium fuel for sure.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
> On Aug 31, 2014 3:35 PM, "Trevor Pordage" wrote:
>
>> [quote title=James Hupy wrote on Sun, 31 August 2014 15:23]In the early
>> 50's, with 200 cu.in. less displacement, no smog, good gas,
>> and a non spreadbore carb, it was common to see Cadillac make 19-20 mpg.
>> But a 500? Not even in his wildest dream.
>> Jim Hupy
>> Salem, Or
>> 78 GMC ROYALE 403
>> On Aug 31, 2014 1:15 PM, "Steve Southworth" wrote:
>>
>> might have to make that chevrolet cadillac motors in the 50s started
> withh
>> 331 but would still get good milage with only a 2 barrel on top :)
>> --
>> Trevor
>> Brisbane Australia
>> Siesta Koala 76 Edgemont (old Bobby Moores)
>> 71 Cadillac Eldo Convert
>> 58 Cadillac Eldorado Brougham Project
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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