daytona ignition timing

This would be a good question to post on the Daytona Registry web site:

www.ferrariregistry.net

Lots of good info there, and lots of other Daytona owners to chat with.

Tom Elerding

 

Nothing specific to add, but does that mean that you've tried the 10-11 deg BTDC spec (for R1 only) from the '72 US manual and are not pleased, or note a problem? If you adopt something (significantly) else then you might need to make a change in the dist adv. mechanism to keep the total advance at high RPM on target.

What's your configuration? Are you minus the other US emission equipment?

(and I thought the 308 R1/R2 stuff was written/translated poorly and/or unclearly)

 

Sounds like you've got some of the typical fettling issues to address. You should definitely register at www.owners.ferrari.com and download the available 365GTB4 Owners Manuals -- much good technical stuff. However, it can take a little while to get registered so if you send me a PM with your email address (and can handle getting a 3.1 MB .pdf file) I'd be glad to send you that '72 US stuff I have (I can't even recall why I downloaded it -- wish I needed it ).

Your US Daytona seems to have the same air injection set-up as the carbed US 308s so you should either make it all work as intended or remove it all --there's just no sense in leaving the air injector nozzles obstructing the exhaust ports if the air pump isn't present/working (but don't remove the fuel evaporation control system).

Welcome aboard!

 

Check this discussion out on the Daytona web-site:

http://www.daytonaregistry.com/smf/index.php?topic=111.0

Tom

 

It's most important that the total advance is observed and tested.... NOT just the static.

Running more advance at very low rpm gives a good increase in torque, but the range must be reduced to maintain MAX advance at a level to match your engine condition, spec and fuel quality.