Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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mgb260
Jim Nichols
Sequim,WA
(1858 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: ac ace with oldsmobile 215
Posted by: mgb260
Date: April 03, 2018 12:07PM

Kim, That's a pretty hot cam. I'd try 10 advance to start. After warmed up it would not surprise me if you didn't need about 15 or so.


acace
Kim Sorensen

(8 posts)

Registered:
12/31/2017 05:31AM

Main British Car:


Re: ac ace with oldsmobile 215
Posted by: acace
Date: April 03, 2018 03:06PM

hi
tks yr replies

we have a new timingset - edelbrock - 7828 - from Summit

my enginebuilder ask for the cam settings - he thinks it is 5dgree - is that correct - or have i misunderstood -
the ignition timing we can work with when we have the engine installed - but the cam settings should be right first time
can you comment

kim


mgb260
Jim Nichols
Sequim,WA
(1858 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: ac ace with oldsmobile 215
Posted by: mgb260
Date: April 03, 2018 05:35PM

Kim, I apologize I thought you meant ignition timing. Earlier in this thread I found duration and lift. Some cams have 4 degrees or so advance built in. With that high of duration you will need to have the cam advanced. I am at work now, but when I get home I can run it on the Desktop Dyno/Cam Analyzer.


mgb260
Jim Nichols
Sequim,WA
(1858 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: ac ace with oldsmobile 215
Posted by: mgb260
Date: April 03, 2018 09:03PM

Kim, I can't get my program to work but these specs may help:

[www.cranecams.com]

I found the SBC version with the same specs and it shows 5 degrees advance built in. So at straight up you should be 5 degrees advanced.



Edited 1 time(s). Last edit at 04/03/2018 09:15PM by mgb260.


acace
Kim Sorensen

(8 posts)

Registered:
12/31/2017 05:31AM

Main British Car:


Re: ac ace with oldsmobile 215
Posted by: acace
Date: April 04, 2018 07:46AM

Jim - tks - thats what we also concluded - so now when you agree we do it so

tks
kim
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