VY S PAC V's AU falcon

[fluxxx]

apparently theres some casting overhang in the vy series 2 which causes a problem with the 1.97 rockers. Its only on some cars though.

if you're looking at the 1.97 rockers from FIT, they also sell a set of 5/16" pushrods for $120 which will allow enough clearance for the rockers to be used on any ecotec.

matt.

 

[krazyboris]

Better alternative imho is the split ratio rockers from yella terra. Split ratio rockers balance out the inlet/exhaust better, which allows your top end to breath even better than just high ratio rockers, plus yella terra's rockers are roller tipped, not friction plate, and are also lighter aluminium.
Besides that, im not really fond of the idea of reco'ed rockers in my car, which is what fits rockers basically are.

 

[fmlycar]

XR6 will have the na s pac for dinner. I remember reading a test between the XR6 and the super6 vy, the vy actually won that one.

Factory super 6 are slower than the manual na v6. Already tested this with a mate :whistling So it should get up on the AU. As for the BF, you would probably loose but wouldn't be by much if you can get a good start. The 4L 6 makes alot more torque that the ecotec, something like an extra 80nm.

Figures are like this BF Kerb weight - 1707kg @ 190kw @ 383nm, VY Kerb weight - 1549kg @ 152kw @ 305nm, AU Kerb wieght - 1480kg @ 164kw @ 366nm.

This is just what it looks like on paper though. Driver ability will determine who's faster. Not that it matters, you got a holden so your already in front.

 

[GOTMYN]

AU vs VY!!

I can tell you that my VY when it was stock, Beat my Bro's AU Ute by miles!!
Just yeserday, I ran a BA XR6 Manual Ute.
I smashed it from take off all the way to the limiter in 3rd 210kmh!!
although now I have 132rwkw.

 

[angelo.vs]

FIT do a set of 1.97 rockers for about $900 which should be good for 20rwkw. not only will that provide hours of fun but should see you pulling away from that au with no worries :yeah:

matt

20 rwkw!? Can anyone else confirm this?

 

[GOTMYN]

Rockers.

Personally, I would go the Yella Terra Roller Rockers!!
Not only are they Roller Rockers, but also light weight and cheap. $600 Comes with everything you need to fit them.
Proof is in my Dyno yeterday!! 132rwkw from rockers and exhaust. was 112rwkw without!!

 

[1991_Vn2nV]

I've read 8hp gain per .1 change in ratio. Stock is 1.6:5 i think so 1.9:5 would be a 24hp gain at the flywheel so 1.9:7 is probably around a 20rwhp gain (rather than rwkw).

 

[holden007]

I smashed my friends EL with my VR, and an AU. The old buick is very torquey at start. But a BA/BF will smash any ecotec anyday.

 

[GOTMYN]

No way!!

thats your opinion!! get yourself into a VY and give a BA XR6 a run.
It can't be coincidence that i've run and beten 3 in the past couple of months before mods!!
:whistling

 

[HoldenMan7]

hey

i dragged my mate with the AU, best out of 3 and won them all.