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Re: [T3] Timing and idle speed


You're close to the mark, but here's a few pointers.

What you want to be looking for is full spark advance, not 5000 RPM. In
other words, diffÛ)bAstributors reach their full advance at different
RPM values. If you are using a dynamic timing light, then watch the spark
advance as the engine speeds up until it reaches it's peak.

It doesn't matter much what type of distributor you have, the full advance
timing value should be close to the same for your engine configuration. 27
degrees may be a good value to start with, but there are many factors to
consider such as your compression ratio, camshaft design, carburetor
jetting, and fuel octane rating. If your engine is close to factory stock,
other than the distributor and carburetors, you will probably be OK with the
27 degrees. If you're uncertain, it's best to be slightly under this value
than slightly over, as slightly over may lead to pre-ignition (knocking)
which can cause premature engine failure.

<<<<<<<<<<<<<<<
Nathan Jacobsen
'62 NB
'69 SB M/T
>>>>>>>>>>>>>>>
>   I just installed a set of Weber ICT's on my squareback along with a 009
> distributer.  I was wondering what I should set the timing at?  I was told
27
> deg btdc at 5000 rpm, does this sound about right ?   How about static
> timing?   Also what speed should the idle be set at ?
>
>     Thanks,
>     Tim
>  61 Bug
>  71 SB
>  85 Vanagon
>
> -------------------------------------------------------------------
> List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org
>
>


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