Originally Posted by harofreak00
i have never heard of anybody doing them with rockers before
With 1.9 rockers, I personally think that OR pushrods MAY be kinda pointless, I don't know of any case that I would do OR pushrods instead of springs. HOWEVER, 90lb. springs and OR pushrods are a good combination for a rocker setup and should make the valvetrain pretty much rock solid up well above 6500rpm. When my dad had 1.9 rockers in the GTP he had 90lb. springs and OR pushrods and that car made peak power pretty high (like 5800 or so) and held the power until almost 6200, which is pretty abnormal for a rocker car. It never had valve float all the way to the 6600rpm limiter either.
You can try just OR pushrods, but I think I'd do springs as well if you're planning on spinning it much above 6k.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
GOT BOOST??? Friends dont let friends drive stock!