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post #1 of 2 (permalink) Old 07-27-03, 01:00 AM Thread Starter
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Cam specs for crossflow efi

Has anyone put an aftermarket cam in an xe or xf efi? Ive been to the crow website and noticed thee efi is limited to a certain cam (lpg spec), which is pretty obvious as the computer wouldnt be able to handle much change. Are the xf cams better than xe as standard as i have an xe efi?

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post #2 of 2 (permalink) Old 07-27-03, 06:55 AM
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Join Date: Nov 2001
Location: Melbourne, Australia
Posts: 272
Cam for EFI

Yeah, I had exactly the same problem. The normal over-the-counter cam suppliers only list something very close to standard for the EFIs.

The EFI can take a much more aggresive cam. Obviously, one would need to match the correct valve springs. A bit of headwork also works wonders.

I did the following recently:-
This is an XE Fairmont Ghia sedan.
Started with an XE Bosch EFI.
Was doing (and did) a complete engine rebuild.
Had the head ported and the injector rail port matched.
Upgraded to the XF version EECIV EFI.
Installed HM Headers and a 2.5" sports exhaust.
Went to a 4 speed manual (will be a T5 soon).

Headwork and Cam was supplied by Jim Mock.
Jim also advised in piston, gasket, block shave to achieve required compression.

Pulls 127rwkw.

Ring Jim Mock - highly recommended.

The XR family ---->
Muzza: a XR8 AU seriesIII...bog standard :)
TBH: (the better half) drives an ED XR6 wagon (Mock Dev 4 160rwkw, JMM extractors, 4 electric windows, Ghia door panels in XR trim, rear head & arm rests in XR trim, Momo s/wheel with Cruise, EL thermos, EBGT wheels, etc) things to come soon = EECV upgrade.
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