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#1
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Nunzi cam specs
Does anybody know the specs for Nunzi's 068 HL cam? There not open Fridays and I need to know before Monday......
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Jack Ferris RestoRacing LLC www.restoracing.com Sandy, UT --------------------------------------------------- |
#2
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does this help?
Advertised Duration Lift1.5:IRR In @ .050" Ex@.050 In Ex #2041 N H/L 288 222 302 232 450 464 #2042 N H/L 301 232 313 243 460 470 #2043 N H/L 308 244 320 252 503 500
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#3
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The 068HL is the 2041 shown in Darby's list. Its specs are 222/232@.050, .450/.470" lift @1.5, 113 LSA, 109 ICL, and 70 degrees valve overlap. We've got two of them in service right now.
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#4
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Cool that's what Im looking for. Thanks Gville&Rocky
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Jack Ferris RestoRacing LLC www.restoracing.com Sandy, UT --------------------------------------------------- |
#5
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A friend gave me 2041 after deciding not to go with it...had it for years but never got around to putting it in.
Just wondering how it would work on my car: Stock '70 Judge, 4 speed ( wide ) 3.55 rear. Too much? How's the idle? I believe the stock cam ( I beileve that's what's in it ) allows too high cylinder pressure for the C/R. I'm constantly fiddling with timing to stop pinging. Thanks. |
#6
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I'm sure Rocky can tell you for sure, if he has one in a 400, but I'd expect that cam to be real nice in a high compression 400 backed up by a 4-speed and mid 3-series gearing. The wide LSA will tame it down and it's not all that long of a duration to begin with. Right in between to the Summit 2802 and Crower 60916 in terms of both duration and lobe separation and both of those cams have proven to work very well in engines such as yours. I would expect a bit of a lope to the idle, or what you might call a noticeable burble, plenty of vacuum for brakes (probably 16" or thereabouts depending on initial timing and manifold design), and a slight loss of low end compared to the factory cam but a large increase in midrange and top end power. This cam would really work best with headers and a good exhaust. Would work okay with RA manifolds and a good exhaust too. Will still work with log type manifolds but will lose significant power from 4000+ with them compared to the other systems.
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---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
#7
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Thanks Will. I'm running the stock RA manifolds but have a new Pypes system w/X-pipe ready to install, and I welcome a chop at idle. It sounds like a good project this winter.
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#8
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TR, sorry I hadn't had a chance to reply sooner. Will's got it pretty much covered though. The 2041 works pretty well. When I purchased my '76 it had a stock-rebuilt 462 with 70 #15's. Compression was a real 10.0 to 10.25:1 and it had a Comp 268H cam. It ran well but pinged with a moderate advance curve, so we had to run it retarded. I then installed the 2041, lost no power whatsoever, picked up a ton of drivability, and had no more detonation related issues with a normal advance curve. I think you'll be pleased with the 2041 in your Goat, especially with the 3.55 gears and a manual trans.
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#9
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I appreciate your answer and real-world observations Rocky; It's a definate "must do" now.
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#10
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I know this is an old thread, but has the specs for the Nunzi cams
Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
#11
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#12
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I like this thread. Good information.
GT |
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