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-   -   CIS modification ? (http://forums.pelicanparts.com/porsche-911-technical-forum/267428-cis-modification.html)

Harvey Harbour 02-20-2006 09:10 AM
CIS modification ?
 
Is it worth the time and money to enlarge (line bore) the inside diameter of the throttle body on the '79 CIS. If I remember correctly one can only gain 3 mm. This fuel mgt. is on a '89 3.2 w/no air or cat.convert.

bigchillcar 02-20-2006 09:18 AM
i'm going to say minimal if any gain..just not much more significant gains to be made with cis. it wouldn't be worth my money.
ryan

911nut 02-20-2006 09:42 AM
S-Car-Go will bore the throttle body, air sensor body and re-calibrate the WUR for $1K but it makes more sense to buy a Tbitz kit and have infinite adjustability.


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