The main reason for welding or replacing the breaker plate with a solid item is to help stop timing scatter. With the standard diaphragm plate the timing can move 4-6 degrees at high engine speeds. Disadvantage of making the breaker plate solid is the lack of cruise advance from vacuum.
Cheers Feral Errol Get Serious! http://www.datrats.com.au/ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of James Fitness Sent: Friday, April 16, 2004 11:13 PM To: [EMAIL PROTECTED] Subject: Re: Dizzy My old turbo 240z had the plates welded up... static timing - best thing for a Big boost carby turbo... (probably good with fuel only efi too?) mark krawczuk wrote: >dont they either stretch the adv springs or elongate the adv spring holes >in the plate? >i think they usually recurve the dizzy according to what engine setup u >have?? > >mark k > > >----- Original Message ----- >From: "maldat" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Friday, April 16, 2004 4:03 PM >Subject: Re: Dizzy > > > > >>You dont have or need Vac advance for twin side drafts , hence remove it >>from the dizzy graph it and weld it up. >> >>The timming does not change , I think they call it dwell angle? with >>high/low Rpm. >> >>Malcolm >>----- Original Message ----- >>From: "Jeff Oldham" <[EMAIL PROTECTED]> >>To: <[EMAIL PROTECTED]> >>Sent: Friday, April 16, 2004 5:09 PM >>Subject: RE: Dizzy >> >> >> >> >>>and to add my 2 cents worth WHY is it welded up.....what performance >>> >>> >gains > > >>? >> >> >>>ta Jeff >>> >>> >>>Subject: Re: Dizzy >>> >>> >>>What parts do they weld up ive never heard of this before. >>> >>> >>> >>>>>>[EMAIL PROTECTED] 04/16/04 01:10pm >>> >>>>>> >>>>>> >>>I dont but can e.mail you a 5.0 mega pixel JPG , of looking in one thats >>>been welded up. >>> >>>Malcolm >>>----- Original Message ----- >>>From: "Mark Overend" <[EMAIL PROTECTED]> >>>To: <[EMAIL PROTECTED]> >>>Sent: Friday, April 16, 2004 2:50 PM >>>Subject: Dizzy >>> >>> >>> >>> >>>>Does anyone have the specs of a regraphed dizzy for an l series motor, >>>> >>>> >>any >> >> >>>info whould be great Cheers >>> >>> >>>>[EMAIL PROTECTED] >>>> >>>> > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[EMAIL PROTECTED]/ ---------------------------------------------------------------------
