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#1
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tach wiring and engine timing
I need to know how to hook up a Auto Meter Street Tach. I am using a Mopar electronic orange box and dist. I don't have the wiring print for the tach. Do the mopar boxes have a place to hook up the tach or do you still hook the green wire up to the dist. Also what deg. of timing should I start with ? The motor has a 509 cam and 10.5 pistons. 906 heads and I am running a automatic with a full reverse valvebody.
Thanks Ron |
#2
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Tach hooks to the coil just like always. I'd start at 36* and see what it likes from there.
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#3
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that's 36* at 2,000 RPM...
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#4
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Thanks for the info. The Tach is working great. I just installed the new dist and set it at 36 *. The car revs up good but it back fires when you back out of it. Any ideas for this. Thanks Ron
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#5
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I know that there are a few reasons for that. The only one that is coming to mind is too much slack in the timing chain.
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#6
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Hey ehostler you could be on to something. When I was building the motor I installed a new timing chain. When the chain was installed I thought it had a little slop in it. I asked a racer friend and he told me that it was OK. When I bought the car the guy threw in the short block. He said it was bored and balanced. I thought that it might have also been line bored but had no way of proving it. The guy I got the motor from had no idea because he bought it from another racer who was long gone. I have heard of a special timing chain for this case but what one to chose was the question. If you have any more info that could help please let me know. Thanks Ron
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#7
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timing chain
Rons65 - Hughes Engines has a listing for shorter timing chains for the scenerio you have described - expect Don (cuda273) could help you out also with his many supplier contacts.
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