Fordmods Logo

AU Rockers in a EF? 

 

Page 1 of 1 [ 10 posts ] 

 
 Post subject: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 9:38 pm 
Fordmods Newbie
Offline

Age: 51

Posts: 11

Joined: 27th Nov 2004

Ride: EB Fairmont

Location: Albury
NSW, Australia

After reading the engine retro fit it states that the rocker arms are longer in the AU compared to a EF. 2:1 and 1:8.
A few questions.
1. Can I fit the AU rockers into the EF XR6?
2. How much extra lift will this create?
3. Is this a straight swap? and
4. Do aftermarket cams take into consideration the different ratios?
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 10:14 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

drew2229au wrote:
After reading the engine retro fit it states that the rocker arms are longer in the AU compared to a EF. 2:1 and 1:8.
A few questions.
1. Can I fit the AU rockers into the EF XR6?
2. How much extra lift will this create?
3. Is this a straight swap? and
4. Do aftermarket cams take into consideration the different ratios?



it will create less lift
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 10:22 pm 
Fordmods Newbie
Offline

Age: 51

Posts: 11

Joined: 27th Nov 2004

Ride: EB Fairmont

Location: Albury
NSW, Australia

Longer arms increase lift, not reduce.
Check this link about Holden V6

http://www.v6supercharged.com.au/rocker.asp
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 10:47 pm 
Moderator
Offline

Posts: 14489

Joined: 7th Nov 2004

Ride: AU XR8

Location: a shit suburb in sydney
NSW, Australia

yea thats right.. but holdens go from 1.65:1 to 1.9:1 ..
your asking if you can use 1.8:1 instead of 2.0:1..
which means your going backwards....

in the the case of fitting 2.0:1 rockers on a 1.8:1 cam it will create to much lift and bend the valves,break rocker arms..
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 11:02 pm 
Fordmods Newbie
Offline

Age: 51

Posts: 11

Joined: 27th Nov 2004

Ride: EB Fairmont

Location: Albury
NSW, Australia

My mistake. I thought the AU rocker arms were the longer of the two hence why I asked. My bad.
Just out of interest if, I was to put EF rockers into a AU, would the extra lift bind the springs or the valve kiss the pistons?
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 11:07 pm 
Moderator
Offline

Posts: 14489

Joined: 7th Nov 2004

Ride: AU XR8

Location: a shit suburb in sydney
NSW, Australia

yes....
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 11:32 pm 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 3737

Joined: 22nd May 2006

Ride: BF F6 Tornado - #0077

Location: Bendigo
VIC, Australia

has been covered a few times before, but some ppl ive spoken to swear that they've seen some sort of hybrid concoction of interchangable parts that works

 

_________________

** For Sale ** http://www.fordmods.com/ford-parts-for-sale-f17/assorted-e-series-parts-t124697.html

F6 Tornado 2006 Build

Is it about sex? The engine in my car? Or a cure for cancer?
No?

Then f**k off

Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 11:38 pm 
Moderator
Offline

Posts: 14489

Joined: 7th Nov 2004

Ride: AU XR8

Location: a shit suburb in sydney
NSW, Australia

i have seen au heads with ef cams using ef rockers and ef heads using au cams and au rockers..
but those that i know of that have mixed and matched au cams with ef rockers have ended in disaster...
Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Thu Jul 23, 2009 11:57 pm 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 3737

Joined: 22nd May 2006

Ride: BF F6 Tornado - #0077

Location: Bendigo
VIC, Australia

i think there was someone recently who put a combo on and bent the valves. cant remember who or what combo tho

 

_________________

** For Sale ** http://www.fordmods.com/ford-parts-for-sale-f17/assorted-e-series-parts-t124697.html

F6 Tornado 2006 Build

Is it about sex? The engine in my car? Or a cure for cancer?
No?

Then f**k off

Top
 Profile  
 
 
 Post subject: Re: AU Rockers in a EF?
Posted: Fri Jul 24, 2009 12:28 am 
Fordmods Newbie
Offline

Age: 51

Posts: 11

Joined: 27th Nov 2004

Ride: EB Fairmont

Location: Albury
NSW, Australia

Thanks guys.
I'm glad you cleared that up for me and I didn't waste my money swapping rockers to go backwards
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 10 posts ] 

Who is online

Users browsing this forum: Google Adsense [Bot] and 54 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Mar 28, 2024 10:45 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names