Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: rumblefish72]
#2649416
04/26/19 08:33 PM
04/26/19 08:33 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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Thanks for the comments.
Should be roughly 10.2:1, but that was calculated by CCing one of the old heads + before I physically had gaskets on hand. I'll be able to get more accurate numbers as soon as the exact head is decided.
Cam specs subject to change but I'm going to start out with a solid roller 272/280 @ .050, .420 lobe lift on 112 and will see how I like it.
Hey - that's the cam I'm running in my pump gas Hemi ... 273 on the intake and 286 on the exhaust at .050. Bullet Solid Roller. . Seriously...holy crap. Is yours on 112? What's the lift.... The cam just showed up for sale and I grabbed it based on the lobe type + use, and the duration seemed sort of in the ballpark Compared to other Influential builds/people. It was super cheap and seemed worth a try. It's actually an old Crane circle track lobe design. Does it sound cool? It has to sound cool! Lol
Last edited by ZIPPY; 04/26/19 08:35 PM.
Rich H.
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: AndyF]
#2649419
04/26/19 09:32 PM
04/26/19 09:32 PM
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Posts: 17,844 S.E. Michigan
ZIPPY
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Okay, I see your point on the heads. If everything you have on the shelf needs some work then it is a "pick your poison" sort of a thing. Buying a head from Summit and using it to check fitment seems like a good idea. You can return it after a few days of fit checking if it doesn't work out. I was assuming that you had some good heads sitting on the shelf and I knew that you already had the shortblock pretty much together. Yeah, none of the heads I have are ready to rock, some could be ok with little effort But some others are in rough shape. I figure I'd have over 2 grand into repaired bare heads with CNC porting. It's another 600 for Victors with valves (2600). Almost the same for new MP heads, within like 50-100. It's almost a wash. Cheapest possible: I can cherry pick, and use the nicest heads I've got, and probably be mostly good to go For around 1200. This is not bad, but without porting, will obviously lose out on a bunch of horsepower. If I port them I'm at 2200 which is again really close to victor territory(2600). I think the non ported option might be good for milder engine.
Rich H.
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: ZIPPY]
#2649435
04/26/19 11:03 PM
04/26/19 11:03 PM
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Joined: Oct 2006
Posts: 246 Cranberry Twp PA (North of Pit...
rumblefish72
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Seriously...holy crap. Is yours on 112? What's the lift....
The cam just showed up for sale and I grabbed it based on the lobe type + use, and the duration seemed sort of in the ballpark Compared to other Influential builds/people. It was super cheap and seemed worth a try. It's actually an old Crane circle track lobe design.
Does it sound cool? It has to sound cool! Lol
114 on the lobe separation ... EFI helps here. It really is a street car so used restraint on the lift: I = .637 E = .631 on E ... actually, I think it's just a bit more on the E because my RBRE/T&D setup has a but more ratio on the exhaust rocker arm than stock. That was Ray's suggestion. Dyno guy called when they had it running. I asked him if it sounded nasty and he said it sounded "snotty". That sounded gross until I looked up snotty and found definition #2, then I smiled and thought HELL YA! But you can be the judge: https://youtu.be/95gZTspdzsgI'm working on the killer 50PSI fuel system. I want to build that once and have it be good for ~1300 HP on E85 in case I ever go boosted. Then I can really start breaking some parts ... might even have to buy a parachute. But the new job is killing me so I'm dreaming of the day I get it installed. Second kid graduates from college tomorrow ... 2 down, 3 years left to pay for on the last one. Then I'll have good cash flow for toys.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: rumblefish72]
#2649631
04/27/19 07:12 PM
04/27/19 07:12 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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Joe, thanks so much for the info.
I hadn't looked at my cam card in months and didn't remember the specs correctly. It's actually 276-280.
I won't have efi and so on, but I might do some other stuff.
I agree with the lift cutoff for the way I use vehicles. It's arbitrary but 650 lift and 650 open pressure is about all I'll do. Preferably less.
Last edited by ZIPPY; 04/27/19 08:47 PM.
Rich H.
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: AndyF]
#2650436
04/30/19 07:58 AM
04/30/19 07:58 AM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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If I understand my younger friends who do calibration, a big cam's lopey idle is usually interpreted as a misfire which does not compute. To summarize everything they have told me... you want as near to a stock cam as possible in everything....at least, stock idle characteristics...to make your calibration easy. If you want more power, put a turbo on it. That is the mindset..... Big cams, carburetors, and superchargers are for old people
Rich H.
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: ZIPPY]
#2650442
04/30/19 08:19 AM
04/30/19 08:19 AM
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Joined: Jan 2003
Posts: 12,076 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
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If I understand my younger friends who do calibration, a big cam's lopey idle is usually interpreted as a misfire which does not compute. To summarize everything they have told me... you want as near to a stock cam as possible in everything....at least, stock idle characteristics...to make your calibration easy. If you want more power, put a turbo on it. That is the mindset..... Big cams, carburetors, and superchargers are for old people That sounds like my son. He has had SRT-4 Neons for years. He had one that would actually keep up with a mild 360 powered Scamp I had a few years ago. Whenever he starts to rag on me about carbs and big cams I tell him he is half the man I hoped he would be since he likes 4 banger stuff.
Master, again and still
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: DaveRS23]
#2650451
04/30/19 08:34 AM
04/30/19 08:34 AM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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That sounds like my son. He has had SRT-4 Neons for years. He had one that would actually keep up with a mild 360 powered Scamp I had a few years ago.
Whenever he starts to rag on me about carbs and big cams I tell him he is half the man I hoped he would be since he likes 4 banger stuff.
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LOL....good one. The identity crisis that comes with those is always fun. Say- "Hey, nice Neon!" And they go: "IT'S NOT A NEON!!! IT'S A SRT-4, YOU IDIOT! It's a highly developed factory high performance vehicle!" Then.....the first time they beat somebody....they go: "Ha ha, you just got beat by a NEON, the biggest loser turd car EVER! ". I also notice when they try to sell them, they are always special high performance vehicles..... I had a chance to buy a few of them, and I just can't
Rich H.
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: ZIPPY]
#2650452
04/30/19 08:36 AM
04/30/19 08:36 AM
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Joined: Jan 2003
Posts: 13,363 Marion, South Carolina [><]
an8sec70cuda
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What's worse is the way they sound...like an old Farmall 140 missing the muffler.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: G2 Hemi AL heads MP/Edelbrock VS Edelbrock Victor
[Re: AndyF]
#2650506
04/30/19 12:03 PM
04/30/19 12:03 PM
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Joined: Jan 2003
Posts: 14,497 So. Burlington, Vt.
fast68plymouth
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At .050....... in an EFI street car? Sounds like it really could use a cam swap.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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