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Au head with ef rocker gear 

 

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 Post subject: Au head with ef rocker gear
Posted: Thu Mar 27, 2008 7:03 pm 
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Can i run an ef cam and rocker gear on my au head?Would widen the range of cams to suit thats for sure but i dont think it could be that easy?

 

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Posted: Thu Mar 27, 2008 7:04 pm 
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I believe not. The rocker gear and camshaft are different to E-series heads.

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Posted: Thu Mar 27, 2008 8:14 pm 
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cant vouch for the rocker gear, but believe me, dont go putting an e series cam in there. VERY bad

 

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Posted: Thu Mar 27, 2008 10:49 pm 
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Can anyone say for sure if its possible?

 

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Posted: Thu Mar 27, 2008 11:57 pm 
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pritty sure its not.

had one guy tell me changing the arms or the pedistles (cant remember which) and all is good. cant find the thread tho.

i've also been told that if you were able to fit it, you'd have a head full of bent valves.

putting the e series cam in with the original gear is bad tho, it makes it sit high and will actually bow and snap the rocker train. (personal experience)

 

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Posted: Fri Mar 28, 2008 8:49 am 
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green car wrote:
Can anyone say for sure if its possible?
I think it can provided the rocker gear and the cam are from the same motor. The AU Rocker has a different ratio to the EL(non hybrid) and earlier motors. The only issue might be clearance of the springs if putting Au gear onto an EF/EL the other way should be OK.

*** please note the "think" and "should" words ****

 

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Posted: Fri Mar 28, 2008 9:37 am 
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i thought the cam journals were larger on the au?

 

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Posted: Fri Mar 28, 2008 9:56 am 
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Redford wrote:
i thought the cam journals were larger on the au?


pretty sure they are

 

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Posted: Fri Mar 28, 2008 11:15 am 
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it does work I have seen AU heads with E series rocker gear running e series cams, all that happens is the rocker geometry is changed to allow the e series cam, however I am pretty certain the later e-series rocker gear is needed, EF/EL. cam jurnals should be the same size, I have also seen au cam and rocker gear in an EB not a head swap just cam and rocker gear.

 

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Posted: Fri Mar 28, 2008 12:35 pm 
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I can confirm it works as I have this setup in my car.

You need AU rocker pedestals with EB-EL rocker arms and shafts. I'm running the old RPD rspec 4 cam in an ED engine with AU head, and besides a couple of snapped valve springs I haven't had any problems.
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Posted: Fri Mar 28, 2008 12:51 pm 
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weeman wrote:
besides a couple of snapped valve springs I haven't had any problems.


i would consider that to be pretty serious
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Posted: Fri Mar 28, 2008 12:58 pm 
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FordFairmont wrote:
weeman wrote:
besides a couple of snapped valve springs I haven't had any problems.


i would consider that to be pretty serious


Never had a problem until I upgraded to the rspec 4 cam. Running 0.600" lift @ 6200rpm is very demanding on valve springs.
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Posted: Fri Mar 28, 2008 2:27 pm 
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theres a lot of 'may' and 'could' and other words of such.

it doesnt inspire confidance. however i'd like to try it if i could get my hands on a e series cam (and i have a rock solid guarantee from ppl here)

weeman, have you guys had problems with the au style ecu getting messed with the cam? heard that it doesnt really like the cam changes

 

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Posted: Fri Mar 28, 2008 2:47 pm 
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fiftyone wrote:
theres a lot of 'may' and 'could' and other words of such.

it doesnt inspire confidance. however i'd like to try it if i could get my hands on a e series cam (and i have a rock solid guarantee from ppl here)

weeman, have you guys had problems with the au style ecu getting messed with the cam? heard that it doesnt really like the cam changes


Car / Engine is an ED running an AU head. Stock setup with AU head ran fine with the ED ECU, however I'm now running a megasquirt ECU with the larger cam.
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Posted: Fri Mar 28, 2008 2:57 pm 
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ah, not what i was looking for. i've been told that a au engine and ecu wont accept a cam change easy.

 

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