They only come in one size from the factory - 40mm. Though if Stan has set up your dual ignition, I'm guessing he has probably jetted the carbs for you too ? In which case they may be different to the stock jets now.
Excuse my ignorance about twin spark ignitions, but how do they work? Do they spark simultaneously or what? Also, do you have b4 and after dyno figures or some idea of the powre increase?
thought you might like to know, after all your raving about the twin plug convo on ya heads, I went to buy some new thongs the other day. Well, when the label said "DOUBLE PLUG" I thought to myself, I have to be on a good thing. 😉
Oh, BTW....the price? $7.95, Pobjoy's got real competition by the looks of things 😀 LOL
does any body now if stan will do twin plugs kits, eg send downa a set of heads and get the second plug whole along with dizzy etc returned to be built at home? or is it only for hi engines?
also what about doing i to performance heads? not stock type 1 heads?
I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!
Bix,
Stan has just done my Street Eliminators as well, ....................arriving back tomorrow.
(Stan's open wheeler also has twin plugs and has eliminators)
T4's,044's, Eliminators,standard have all been done.
Twin plugs only available on complete engine package.
(unless you negotiate!)
It looks impressive, I like the idea of black, very cool. I can't believe how many great looking VW's are on this site, it's fantastic that so many people spend so much time and effort on these incredible cars, keeping the Vdub spirit alive!!😉
History will be kind to me for I intend to write it.
to do this do you have to put in forged pistons etc like you would for a blower or turbo , from what i can gather could be wrong, does the extra spark give a stronger bigger explosion therefore giving more compression or am i wrong.
also how will this effect the engine for wear?
and has anyone done a dyno test before and after to check the difference ? just curious is all
I think that the extra spark plug would produce the same amount of compression but faster, as the amount of burning mixture in the piston doesn’t change but the 2 separate flame fronts burn the mixture more efficiently. Hence this setup requires less ignition advance to achieve peak pressure at TDC. This then reduces the chances of detonation and allows one to increase the compression by reducing head cc's to gain more power.
But if you don’t increase compression then you could run cooler and stong on the cheapest dodgiest fuel available.