[ROVERNET - UK] Ignition timing on the 3500S (Federal)

[peter king]

Thanks for that, Lex. Very helpful indeed.

pk

On Apr 5, 2005, at 4:28 AM, A.G. Opstal van wrote:

> Peter,
>
> There is a lot of discussion on the subject
> of ignition timing and there are a lot
> of distributors (even for the P6B) with
> different max advance specifications.
> (see the workshop manual).
>
> If you want the very best of your engine
> efficiency- and power wise you should
> experiment by trial and error.
> The thing is any engine runs best on
> the verge of pinging. The factory was
> naturally conservative for many different
> situations.
>
> My 9,35 engine runs on 16 degrees BTDC
> on 98 RON fuel.
> But I made a provision so that maximum
> advance is not more than 36 degrees.
>
> A lot of cars run on 12 degrees BTDC.
>
> So if you want conservative timing set the
> advance to 10 degrees BTDC. When the engine
> pings what is highly unlikely you can always
> adjust in less advance in 2 degrees increments.
>
> Also important is what distributor you have.
> Some have 13 degrees max advance (that is 26
> crankshaft degrees) some 12 and some 14).
> You should not dial in more than 36-38 max advance.
> Also make sure your vacuum advance is working and
> establish what CR you have.
>
> Hope this helps,
>
> Lex van Opstal.
>
>
>
>
>
> -----Oorspronkelijk bericht-----
> Van: rovernet-bounces at lyris.ccdata.com 
> [mailto:rovernet-bounces at lyris.ccdata.com] Namens peter king
> Verzonden: dinsdag 5 april 2005 3:00
> Aan: rovernet at lyris.ccdata.com
> Onderwerp: [ROVERNET - UK] Ignition timing on the 3500S (Federal)
>
>
> I'm about to do a tune-up, and reading the manual on Ignition timing, I
> see two settings, one for 10.5:1 compression ratio and one for 8.5:1
> compression ratio. My owner's manual says engines in "some export
> markets" have 8.5:1. Any insight on this, or more to the point: set
> timing at TDC or 6° BTDC?
>
> Thanks,
>
> Peter
>
> _______________________________________________
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the bottom and follow 
> instructions: http://mailman.nipltd.com/mailman/listinfo/rovernet
>
> _______________________________________________
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the bottom and follow 
> instructions:
> http://mailman.nipltd.com/mailman/listinfo/rovernet
>