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| Mopar Tech Forum Any and all Mopar related questions should be posted here. Please post only Mopar related discussions. |
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07-30-2010, 06:58 AM
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Senior Member
Super Street
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Join Date: Sep 2008
Posts: 851
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Beware of Voodoo cams!
So I did most of the work of installing the voodoo cam part number 60404 and I was checking the lift numbers on the new hughes 1.6 rockers and the numbers were just way off from what I was expecting (they were still off from where the were supposed to be but that is a different matter). I was seeing lift around .525-.535 depending on pushrod length, and I was expecting to see lift in the range of .565. Needless to say I was very concerned. I went on a bit of a tangent thinking that the rockers were actually 1.5 ratio and not 1.6 ratio but all of the testing I had done seems to suggest that they are pretty close to 1.6.
Long story short last night I found out that the cam isn't what it says it is. I measured pushrod travel with the dial indicator and I got .330 on the intake and .342 on the exhaust. Multiplying these cam lift numbers by 1.5 to get their advertised lift numbers you get precisely .495 intake and .513 exhaust, which is exactly the lift advertised for the 60403 cam. Needless to say I was pissed off. I already had the front of the engine buttoned up at this point and I had to tear it back down.
I pulled the cam out of the car last night and it is scribed incorrectly...it says 60404!
I would have caught this when centerlining the cam if I was more thorough, I only checked the intake centerline on the cam, not the max lift or duration at .050. Imagine how perplexed I would have been if I had blindly continued forward with this cam...it woudln't have been what I was expecting at all!
Moral of the story CHECK CAM LIFT AND DURATION AS WELL AS INTAKE CENTERLINE BEFORE YOU INSTALL THE TIMING COVER AND WATER PUMP!
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07-30-2010, 08:31 AM
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Senior Member
Top Fuel
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Join Date: Apr 2005
Age: 53
Posts: 2,071
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Yep!
If you would have fully degreed it you would have found it earlier.
But seriously that really sucks.
It makes you wonder what kind of quality control they have.
I'm wondering what Lunati has to say about this.
Mikey
__________________
1973 Duster 416ci
Redneck ported 587's, Flowed 264cfm @.600"
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TTI's
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Look'in to kick some Brand X & Z Butts!
04 HEMI Quad cab
74 Scamp, 318, mileage queen
05 SRT-4
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07-30-2010, 11:38 AM
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Senior Member
Top Fuel
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Join Date: May 2007
Age: 57
Posts: 5,331
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That's pretty bad.
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When asked why the Dodge Brothers wanted to build their own car, John Dodge replied, "Just think of all the Ford owners who will someday want an automobile."
Last edited by Glow Worm : 07-30-2010 at 11:40 AM.
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07-30-2010, 12:21 PM
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"that guy"
Super Street
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Join Date: Apr 2009
Location: Grandview Indiana
Age: 32
Posts: 325
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Quote:
Originally Posted by MYBD318
Yep!
If you would have fully degreed it you would have found it earlier.
But seriously that really sucks.
It makes you wonder what kind of quality control they have.
I'm wondering what Lunati has to say about this.
Mikey
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i bet its something like this "oops, sorry"
__________________
70 dodge dart , 360,10.5 cr (about), 292/509 lift purpleshaft, edelbrock performer rpm heads, m1 intake , crap 750 holly carb, 904 trans built by bob mazzolini racing, t/a tq converter about 3000 stall t/a shifter. 8 3/4 4.10 gears 
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07-30-2010, 02:14 PM
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Mr. Post Whore/Moderator
Top Fuel
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Join Date: Mar 2005
Location: Tucson Az.
Posts: 4,500
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two words.......Comp Cams.
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72 D100
11.37@116. slow but consistant
96 ram 3500 V10 99 plymouth breeze {wife's ride}
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07-30-2010, 03:02 PM
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Junior Member
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Join Date: Nov 2006
Location: south dakota
Age: 45
Posts: 3
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They are not the only ones to do that. I bought a Hughes heh3742 and when we degreed the cam it was the next size smaller. Shipped it back and Hughes paid all shipping and sent the right one out.
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07-30-2010, 04:02 PM
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Senior Member
Super Street
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Join Date: Sep 2008
Posts: 851
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Quote:
Originally Posted by Mark
two words.......Comp Cams.
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Comp cams doesn't have off the shelf grinds like the voodoo. |
07-30-2010, 10:51 PM
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Senior Member
Pro Stock
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Join Date: Nov 2007
Age: 23
Posts: 1,281
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I'm sure Lunati would go good for it. I think this falls under 'manufacturer's defect warranty'. They may not know it's happening, and you could save several people lots of grief by letting Lunati know their mistake.
__________________
'70 340 Duster,408 stroker,727, NOS,Best time of 12.03 @ 114 4000 ft.(11.7 @ 115 sea level correction) 1.68 60' 7.80 1/8, pump gas
05 Dodge 2500 CUMMINS, Smarty PoD, exhaust, stealth intake mods, lots to come
95 Dodge 2500 CUMMINS, R.I.P.
88 Dodge W150,8" lift,318 TBI, F.S. $2000
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07-31-2010, 08:43 AM
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Senior Member
Super Street
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Join Date: Sep 2008
Posts: 851
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Quote:
Originally Posted by gump
I'm sure Lunati would go good for it. I think this falls under 'manufacturer's defect warranty'. They may not know it's happening, and you could save several people lots of grief by letting Lunati know their mistake.
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If I see the same thing again I will certainly let them know. In fact if I see it again I might go ahead and get something different. |
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