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Rocker arms 

 

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 Post subject: Rocker arms
Posted: Fri Aug 25, 2006 2:38 am 
Getting Side Ways
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Age: 46

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Joined: 5th Nov 2004

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Ride: AU Fairlane 5.0, KE Laser, 01 Kw

Location: Melbourne
VIC, Australia

What rocker arms are the GT40P running as standard?
Shaft, pedestal etc?

I haven't played with these things before so i have no idea, can't be stuffed taking the cover off to see.

Instead of changing cam i'm thinking of just bolting on 1.7 ratio rockers and see what i get out of it.
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Posted: Fri Aug 25, 2006 9:41 am 
Stock as a Rock
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Location: Brisbane
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All pedestal mount. Pressed 1.6 in the lower spec AUs however I believe the later Tickford cars had rollers (mostly 1.6 but some 1.7).
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Posted: Fri Aug 25, 2006 12:00 pm 
Getting Side Ways
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Ride: EL Fairmont Ghia V8 Turbo

Power: 303 rwkw

Location: Melbourne
VIC, Australia

i think general rule of thumb paul for an upgrade in roller rockers yields around 15hp

 

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EL Fairmont Ghia V8 Turbo 303rwkw
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Posted: Fri Aug 25, 2006 7:50 pm 
Tyre Shredder
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New Zealand

when the au,s went to 200kw from 185 was when they added 1.7rr i fitted these to my 185 a while back but if your gonna rev it the stock springs cant hack it mine started to valve bounce at about 5000rpm, ive got it in bits aty the moment putting doublesprings in it, it only had 85k,s on it to
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Posted: Fri Aug 25, 2006 10:32 pm 
Getting Side Ways
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Ride: AU XR8

Location: Wollongong
NSW, Australia

fairy v8 wrote:
when the au,s went to 200kw from 185 was when they added 1.7rr

Actually the 200kw motors had the Crane (aka FMS) 1.6:1 rockers, and the 220's had the 1.72:1 Yella Terra rockers.
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