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AU3 XR8s - did they have roller rockers??

3K views 11 replies 8 participants last post by  slipper 
#1 ·
AU3 XR8s - did they have roller rockers??

yeh. did they?
 
#5 ·
1:7 rocker ratio ??
 
#10 ·
My gosh. If people weren't confused they are now....

200kW engines ran a bigger cam than the 220s however once the 1.72 ratio rollers on the 220 are factored in with head work it all came good.

Like Jase said, The roller rockers on the 220 and 250kW engines are yella terra 1.72 ratio ST2027.
 
#11 ·
so the 200kw engines have ford motorsport rollers, but the 220 and 250 have yellaterra rollers at a ratio of 1.72..

is that what you're all saying?
 
#12 · (Edited)
Aussie Pete said:
My gosh. If people weren't confused they are now....
I seem to be cause of at least some of the confusion, so I humbly apologise.

When I said...
slipper said:
...I would therefore expect the 220 and 250 engines to be so equipped.
...I really meant to say that the latter engines would be equipped with RRs. Whilst my post implies that they are the same as those in the 200kW engine, clearly they are not.

FYI, The 1.6:1 ratio RRs in the *200kW AUII* engines are FRPP part number M-6564-B351 (set) / M-6564-BS51 (pair)
 
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