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Tuning the Frankenstein Engine

To: mgs@autox.team.net
Subject: Tuning the Frankenstein Engine
From: Patton Dickson <kpdii@softhome.net>
Date: Sun, 17 Feb 2002 16:43:34 -0600
My 1967 MGB has a later 18V motor (18V672Z-L26266) with the heads, carbs, 
and (I think) the distributor that would have been from the original 18GB 
motor.  Below is all of the tuning data I can find for both engines, what 
numbers should I tune the car with?  Thanks Patton

Idle RPM
* 18GB (LC) Engine - 500 RPM
* 18V (672ZL) Engine - 850 RPM

Dist. Type
* 18GB (LC) Engine - 25D4
* 18V (672ZL) Engine - 25D4

Dist. S/N
* 18GB (LC) Engine - 40916
* 18V (672ZL) Engine - 41491

Point Gap (In)
* 18GB (LC)Engine - .014 to .016
* 18V (672ZL) Engine - .014 to .016

Static Timing Deg BTDC
* 18GB (LC) Engine - 80
* 18V (672ZL) Engine - 60

Strob. Timing Deg BTDC
* 18GB (LC) Engine - 12 @ 600
* 18V (672ZL) Engine - 12 @ 1500

Plug Type
* 18GB (LC) Engine - N-9Y
* 18V (672ZL) Engine - N-9Y

Plug Gap (In)
* 18GB (LC) Engine - .024 to .026
* 18V (672ZL) Engine - .024 to .026



------------------------------------
Patton Dickson - Richmond, TX
1965 Corvair Monza 110/4sp 'vert
1967 MGB

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