Roller rockers + Air induction

[DevilDRake]

Hey guys,


I currently have a VY S 2003 Ute, but i'm asking as for my next car which would either be a VX 3.8 or VY 3.8 sedans.

What's the difference between 1.8 and 1.9 roller rockers? DO you need anything else when fitting them?

Also, what air intake do you have available just for a bit of extra kick? Because i'm thinking in the next car sticking some 3:7 gears, roller rockers, cold intake + a tune. Maybe exhaust to let it breathe better.

Mind helping me out? Not too sure on this subject of stuff.

[sam.]

hey mate, i have a VY S II and i was asking myself the same question. i want to do roller rockers, intake and exhaust but i have plenty of ifs and buts about actualy going about getting it done and what sort of performance increase il get? if you have any answers to some of your questions or if you have already done the mods to your car could you please tell me about them?
if you could inbx me that would be great! thanks

[MICKY.D]

Hey Guys,

The Difference between 1.8 to 1.9 is very mininal, maybe a kw or 2, nothing else required to fit unless changing, springs or rocker cover gaskets at the same time or something, we only do an intake pipe for greater air flow to the air box, not to throttle body , these are normally about $170, but are no stock at the moment, these will fit from vt-vy , best upgrades on the V6 are intake , rockers and exhaust, a re-tune may give it that little extra and may be better on fuel,


Cheers
Mike
YT

[WogBoyz]

If your gunna go rockers go the 1.98.1 to get the most out of them, i had them for 3 yrs with no trouble at all, mine were yella terra ones aswell, was very happy with them

[Kernal]

If your gunna go rockers go the 1.98.1 to get the most out of them, i had them for 3 yrs with no trouble at all, mine were yella terra ones aswell, was very happy with them

How much difference did you notice?

[pattobro]

hey mate
im chasing a set of 1.98 rockers for a 3.8 just wondering what theyre worth and if you would advise tougher valve springs or rods

cheers

[kaino]

is there much point putting 1.7 rockers on my v6 VR and isnt it just straight bolt on n no need to tune it?
or does it have to be tuned?

[vyseriesII]

is there much point putting 1.7 rockers on my v6 VR and isnt it just straight bolt on n no need to tune it?
or does it have to be tuned?

Wont really need a tune after just rockers, if you don't want too anyway. A tune would gain very little. 1.7 ratio rockers FYI wont be far from stock rocker lifts afaik. If you had a cam, 1.7 might be better then. Depends on the lift of the cam(if u had one).