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| Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#1
11-28-2015, 01:36 PM
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Rockers??
OK guys need some input. What rocker arm setup is everyone running? My combo is an IAII block 482ci, standard e-heads, vortech YSi, CSU blow thru, cam is .680 lift. According to Bullet I should shift in the 6800rpm range. Looking at around 20psi of boost. I'm trying to figure out what to run for rocker arms. I know shaft is far superior but with my combo can I get away with stud mount and stud girdles? I shafts are a must then so be it but if not I could save a ton of cash. Looking for the best brand either way.
Thanks, Mike
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Mike Bright Special thanks to Mark Luhn at Luhn Performance for all the help 
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#2
11-28-2015, 02:10 PM
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Not really the same world, but my 0.480" lift flat tappet hyd. cam has Comp Cams roller tip rockers with cool nuts pushing on the heavy wall Butler pushrods. I bump the chip at 5600 rpm at times but try to shift at 5200 or so. Have seen 20 psi many times, and have been near 25 at the dragstrip and near 30 psi by accident a few times. Bent a few stock type pushrod when I got to 20 psi, and have lost some clips in the hyd. lifters. Till I go with a solid cam we put solid cam clips in a few of the hyd. lifters, have to see if they come out.
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#3
12-02-2015, 01:36 PM
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I heard Harland sharp is good . Iv been using Scorpions. The only thing negative about them is they seem to always need a longer push rod to get proper geometry . Other then that , they have served me well. Costumer service is really good as well.... My seat pressure is 300lbs and 680lbs open with 38 pounds of boost. Its also street driven....
Hope this helps in your decision.....
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My Half AN Injun..... |
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#4
12-02-2015, 01:39 PM
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Definitely use stud girdles. Last year I bent all of my studs because I was not using one...
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My Half AN Injun..... |
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#5
12-02-2015, 07:02 PM
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I use Scorpion rockers in my turbo combo, so far 18psi of boost at 7000 rpm, cam is a solid flat tappet around .600" lift and I use stud girdles.
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#6
12-03-2015, 02:43 PM
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Aside from shaft mount, there is only one. Crower.
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
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#7
12-03-2015, 07:50 PM
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I'll second the Crowers. I have Norris, HS, some Comp SS and Crowers do have the largest trunnion bearing.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#8
12-04-2015, 12:12 AM
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1.8 Jesel shaft.
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