MFI Throttle bodies

Swank911 · Swank911's Garage

During 1973 were there different size throttlebodies depending on which model you had, T, E, S?

Early_S_Man · 05-27-2002, 06:56 PM

Yes ... and the biggest was used on both 'S' and RS engines!

CamB · CamB's Garage

Warren (or anyone listening!) what were the sizes???

Thanks

Cam

Early_S_Man · 05-27-2002, 11:17 PM

Cam,

I have reason to believe that 'T' were 30 mm, 'E' were 32 mm, and that 'S' and RS were 36 mm at the junction to the heads.

Oldporsche · 05-28-2002, 05:23 AM

They can be bored out too!

Good luck,
David Duffield

CamB · CamB's Garage

Thanks guys.

I know they can be bored out - my "new" engine has been bored to 40mm

. I was just curious as to how much boring that entailed (not done by me).

DavidPorter · 05-31-2002, 08:17 AM

I thought the 2.4 T and E both used 32mm ports, S used 36mm. Wouldn't it make sense to use the same throttle bodies for T and E?

jluetjen · jluetjen's Garage

Ahhhhh -- now it is starting to make sense. Warren recently took some intake port measurements from a 2.4T head that he had. I was expecting the ports to be 32 mm's. But in fact the were 29 mm's which really had me scratching my head. This could be confirmation of another glitch in BA's data tables.

Has anyone got some 2.4T (MFI) intake manifolds that they can measure?

Does anyone have some 2.2T heads who can measure their port size?