Author Topic: New camshaft  (Read 843 times)

Offline jimynick

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Re: New camshaft
« Reply #15 on: April 19, 2017 - 11:17:46 pm »
Everybody mentions the fuel system, but the cooling system is nearly as important and you'd want to make sure the hoses are on good and tight, fan belts tight and coolant levels where they should be, shrouds installed, etc. because the idea is to run it at highway rpm for 20 minutes and it's going to get hot and need to be cooled properly.  :cheers:




Offline 73440

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Re: New camshaft
« Reply #16 on: April 20, 2017 - 02:57:29 am »
A fan to assist with airflow thru the radiator, water hose handy.
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Offline xtopfuel

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Re: New camshaft
« Reply #17 on: April 20, 2017 - 06:03:34 am »
very good points


Offline Grec

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Re: New camshaft
« Reply #18 on: April 20, 2017 - 10:44:46 am »
I had my 440 Six-Pack rebuild last year with that exact Lunati Voodoo cam. The things an absolute beast now. You're gonna love it! Good times.  :thumbsup:
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Offline 734406pk

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Re: New camshaft
« Reply #19 on: April 20, 2017 - 10:00:49 pm »
https://pisuladevelopmentcompany.box.com/s/ydzun219r340mmqgijgcba6wlb1iwsjx

https://pisuladevelopmentcompany.box.com/s/l19przhqo1bq6xbe4y1nps63ud73oxya

Info from Hughes Engines and Crane on camshaft install and break in.

Now this is some good info from Hughes Engines! Reduces the chance of cam damage during break in. Thanks for posting!  :2thumbs:
1973 Challenger 440 6 pack auto 3.91 rear
2012 Dodge Ram 3500 dually 6.7 Cummins Fleece EFI Live
1973 Challenger 318 2bbl auto 2.73 rear 22.5 mpg RIP
1970 Challenger TA 340 4bbl auto-Sold and sad
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Offline dodj

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Re: New camshaft
« Reply #20 on: April 21, 2017 - 02:48:05 pm »
https://pisuladevelopmentcompany.box.com/s/ydzun219r340mmqgijgcba6wlb1iwsjx

https://pisuladevelopmentcompany.box.com/s/l19przhqo1bq6xbe4y1nps63ud73oxya

Info from Hughes Engines and Crane on camshaft install and break in.
:2thumbs:

But one article said to remove the inner springs. So far, I have not seen where Lunati said to remove the inner springs. I have the matching Lunati springs with this cam and they have an inner and outer spring. Do I need to buy an 'on the engine' valve spring removal tool and take out the inner springs for initial fire up? :clueless:
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Online Chryco Psycho

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Re: New camshaft
« Reply #21 on: April 21, 2017 - 03:19:10 pm »
do you need a dual sprig or just a good single or Beehive type

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Offline Strawdawg

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Re: New camshaft
« Reply #22 on: April 21, 2017 - 08:55:40 pm »
Lunati knows what they are doing with their cams.  :)   This cam does not have excessively strong springs and it will be fine to break it in with both installed.

Offline Aussie Challenger

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Re: New camshaft
« Reply #23 on: April 21, 2017 - 10:45:46 pm »
Having weak springs in for the break-in is an advantage, places less load on the cam and lifters, once everything has normalized then the correct springs can then be installed. It might be extra work but today especially with the oils not having Zinc in the formula everything counts, some even leave the weaker springs in for the first 500 miles or so. 
Dave

Offline dodj

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Re: New camshaft
« Reply #24 on: April 22, 2017 - 07:10:29 am »
do you need a dual sprig or just a good single or Beehive type
After I picked up the cam (703) you and others recommended, I checked with Lunati for springs. Tech guy came back saying to buy the 73100K2 valve spring kit...So I bought it. 333lb spring rate.
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline dodj

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Re: New camshaft
« Reply #25 on: April 22, 2017 - 08:13:44 am »
Here's some break in oil that I have used successfully.
https://www.summitracing.com/parts/jgr-03706/overview/
Thanks for the reminder. I have high zinc synthetic in there now. Everything I read says use break-in oil, no synthetics.
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline 734406pk

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Re: New camshaft
« Reply #26 on: April 22, 2017 - 10:11:58 pm »
Here's the Lunati brand of oil additive for cam break-in. It's required for warranty for Lunati flat tappet cams.
https://www.summitracing.com/parts/lun-301
1973 Challenger 440 6 pack auto 3.91 rear
2012 Dodge Ram 3500 dually 6.7 Cummins Fleece EFI Live
1973 Challenger 318 2bbl auto 2.73 rear 22.5 mpg RIP
1970 Challenger TA 340 4bbl auto-Sold and sad
1999 Dodge Ram 3500 dually 5.9 Cummins Fleece tuned VGT-sold
1995 Kawasaki ZX1100E & still alive

Offline xtopfuel

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Re: New camshaft
« Reply #27 on: April 23, 2017 - 08:26:33 pm »
No synthetic and no you don't need to remove inner spring

Offline Strawdawg

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Re: New camshaft
« Reply #28 on: April 24, 2017 - 10:22:15 am »
These are not extremely high pressure racing springs.  There is no need to remove the inner spring.  As I said before, Lunati does have some experience in this field so let's not confuse the type of cams/springs that the magazines discuss with street cams.

Personally, I prefer running a commercially packaged break in oil since they are available these days but using the additive works very well today as it has for the last 50 years.  Personally, the main reason that I don't like using synthetic oil during break in is that it's going to get drained and replaced shortly after break in and it's a lot of money down the drain.

In the end, take the cam manufacturers suggestions and follow them in this field.

Offline dodj

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Re: New camshaft
« Reply #29 on: April 24, 2017 - 12:34:06 pm »
Personally, I prefer running a commercially packaged break in oil since they are available these days but using the additive works very well
I bought break-in oil, so the additive is not req'd?

Thanks everybody for the abundance of advise. It is appreciated!  :cheers:

Unfortunately, work has me scheduled to work for the next three weeks straight with major O/T - 12-16hrs a day. So I won't be able to do this job until mid May! But I'll have more $ for parts!
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.