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#1
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I find all the talk about hydraulic roller cams interesting, anyone with a 10 or 11 second N/A street/strip combo care to share? I like the idea of smooth AND fast. Just don't want to slow down -LOL. -Jim
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#2
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Plenty of LS1/LS2/LS6/LS7 powered cars in the 11's...no reason a Pontiac couldn't benefit from it.
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#3
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I ran 11.80s with 238/242 HR at 5200' altitude 462 with 16 d-ports. Not a street car but 3550 lbs.
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fasteddy |
#4
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Our GrandPrix has one and runs 11.8s weighing 4150lbs. No reason why one couldnt run 10s with one. The only problem is they dont like alot of rpm so you need to keep that in mind.
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#5
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Got 2 cars with my 505 crate engines running into the 10's with hyd rollers.
Pump gas too. My personal IA combo ran 10.50's on pump gas with my custom hyd roller shifting at 6000 rpm. 3560 lbs. If I would have had the right tranny and gear I think it would have run right close to 10 flat or even 9's. But it did pull to 7000 rpms without issues. Just when we went to the chassis dyno the curve was flat from 5800 to 6600 then started to drop. |
#6
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P-body built me a 406 with #16's and a hyd roller that went 11.20's in a 3315Lb firebird back in 98. I believe it was 11:1 comp. Ran it for about 6 years and sold it to my brother who still runns it on the street. I did spray it a couple of times with a 175hp and went some 10.40's. It was a comp cust grind.
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#7
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I ran 10.79 with a Magnun 305 hydraulic. I would think a hydraulic roller would be faster. ??
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#8
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I went 11.44 at 117 with 462 with e heads and comp cams 288HR in a 3800# street car on pump gas.
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72firebird 3800# 496 316cfm eheads, 11.1:1 compression, custom solid roller, victor 4500 intake port matched, 1050 dominator, continental converter flash 4400 stall. 3.73. 2 inch headers with 3.5 with x to mufflers reduced to 3 inch full exhaust. mallory 250 fuel pump, cal tracs with split monos ..Pump gas 91 octane. |
#9
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IM RUNNING COMP CAMS HYD ROLLER IN MY 462,PULLS LIKE A TRAIN,BROUGHT IT UP TO 6200RPM,FELT LIKE IT HAD SOME MORE TO GO...
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#10
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Running a 288 hr with kre 310's on a 433 in a 3770 street car with street 295 50 15's Goodyears. 12.28 looking for a 11.6 with MT ET Streets. I shall see at PIP. Whoo Hooo 400th post.
Tom Last edited by Armadillo; 04-25-2006 at 09:45 PM. Reason: cnat speel for anything. |
#11
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Also, have you seen the 77 Can Am running around there? BTW, I have a 230/238 UD HR, but can't seem to make it to the track ![]()
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How many of you have driven over 340? ![]() |
#12
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You guys realize them roller lifters will fling right apart at anything over 5000 rpm.
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frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. ![]() |
#13
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my converter flashes to almost 5000 rpm. does that mean my roller lifters are coming apart all the way down the track on every pass?
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#14
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You hadn't noticed?
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frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. ![]() |
#15
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how bout 11.50 with a hyd. flat tap. ??? i do.
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#16
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Badder than old King Kong And meaner than a junkyard dog -Jim Croce |
#17
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Why not go to a solid roller, I ran a comp 288R duration .244 @ .050 and .550 lift with 1.5 rockers. Idle was fine and very streetable and ran
11.17 with cast heads and at 3650 lbs. A 100hp shot went 10.28.
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rick may 10.73 @ 126 mph 9.97 @ 135 mph w/100 hp of nitrous |
#18
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Waiting to finish the TA's interior, it'll be in the 10s w/ a hyd. roller.
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![]() SECOND AMENDMENT: AMERICA'S ORIGINAL HOMELAND SECURITY! |
#19
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Our 65 GTO with 9.48cr 406 with Comp cams XR288HR and 670 heads @ 3500lbs 11.70s at 115-117 on pump gas from meijer.......
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"What we have here is, failure to communicate" |
#20
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![]() Quote:
i wish it was that easy. ![]() |
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