McCulloch Mods!

[mfg]

In 1960, the main reason the Granatellis decided to modify the then existing 'McCulloch' Supercharger and develop the 'Paxton' version was because.......?.......

 

..

 

 

[pantera928]

THey wanted more boost

[mfg]

56 minutes ago, pantera928 said:

THey wanted more boost

Sorry, that's not the reason!

[silverstude]

get rid of the variable pulley  and improve the drive balls and races..

[Dwight FitzSimons]

Cost reduction?

--Dwight

[Gunslinger]

Simplification and reliability.  The Granatellis found a primary reason for failure was lack of uniformity of the planetary balls and tightened quality control to improve reliability.

[mfg]

40 minutes ago, silverstude said:

get rid of the variable pulley  and improve the drive balls and races..

True!... but probably not the real motivation

[mfg]

38 minutes ago, Dwight FitzSimons said:

Cost reduction?

--Dwight

That's true..but not the actual motivation!

[mfg]

33 minutes ago, Gunslinger said:

Simplification and reliability.  The Granatellis found a primary reason for failure was lack of uniformity of the planetary balls and tightened quality control to improve reliability.

Definitely true, however I believe they had a stronger motivation!

[mfg]

HINT...The compact car craze!

[mfg]

ANSWER (well, opinion)  The Granatellis wanted to sell superchargers, and with all the compact cars being introduced by various manufacturers in the early sixties they realized the smaller engines in these compacts would really benefit from forced induction....Problem was, the vari-speed McCulloch design was simply too large...thus the 'SN' (short nose) Paxton was designed and introduced..and it turned out to be quite a success.

 

Edited December 29, 2022 by mfg
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