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keithnh
Tribal Scout

USA
14 Posts

Posted - 10 Aug 2017 :  3:26:43 PM  Show Profile  Reply with Quote
Using a cam I believe to be a Nunzi 2041h/l (068 based)hydraulic cam in a 4" stroke 400 block build currently underway. Would like to degree the engine once cam installed and would like to have card with event timing, spring info etc to verify cam and check to as well as for reference and my build record. Wondering if anyone might have access to the card, I would be willing to pay for it. Thanks Keith

Keith

Phil
The Great White Buffalo

USA
7219 Posts

Posted - 14 Aug 2017 :  02:33:14 AM  Show Profile  Reply with Quote
I've bought a few of his 2041NH/L over the years and he never supplied a cam card. He'd just hand write some general specs on the receipt. I always felt he was guarded about his cam specs.

Bowties are for Pee-wee Herman. "Chevy": even the name sounds cheap, but not as cheap as your Pontiac will be with an LS transplant.
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Steve C.
Crazy Horse

1675 Posts

Posted - 14 Aug 2017 :  09:25:39 AM  Show Profile  Reply with Quote
ADV 288/302
.050 222/232
.450/.464 lift w/1.5
113 lobe separation (LSA)

http://www.wallaceracing.com/cam-deg-calc.php

See if you can research and find his typical recommendation for the intake centerline. Then apply it to the calculator above and it will provide the timing events. Related, however keep in mind not all hydraulic cams are rated (Advertised duration) at .006" tappet lift as most are. Unless you know that for a fact and you use the 288/232 it could be off. But using the .050 duration you would have those numbers. If you desire to go ahead and install it 4 degrees advanced then input a 109 ICL.

The valve spring will depend on knowing your installed height. The Crower 68404 is a popular stock replacement spring.
.

Edited by - Steve C. on 14 Aug 2017 09:30:34 AM
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Steve C.
Crazy Horse

1675 Posts

Posted - 14 Aug 2017 :  09:47:03 AM  Show Profile  Reply with Quote
Here you go....


The 2041 has 222/232 degrees of 0.050-inch duration with 0.450/0.470" valve lift at 1.5. IVO=2 BTDC, IVC= 40 ABDC, EVO= 53 ABDC, IVC= -1 ATDC.

Source: http://forums.maxperformanceinc.com/forums/showthread.php?t=621747&highlight=Nunzi+2041

Input the numbers here to confirm.
http://www.wallaceracing.com/camcalc.php

Contact Rocky for details.


.

Edited by - Steve C. on 14 Aug 2017 09:48:07 AM
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Phil
The Great White Buffalo

USA
7219 Posts

Posted - 22 Aug 2017 :  09:26:10 AM  Show Profile  Reply with Quote
Good info Steve. I have one 2041N H/L with lifters left that I was eyeballing for my 70 GTO 400/DNE 5 speed project. Those are much more precise specs than Nunzi provided originally. That cam may just fit the bill.

Bowties are for Pee-wee Herman. "Chevy": even the name sounds cheap, but not as cheap as your Pontiac will be with an LS transplant.
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