twin sparks per cyclinder

BJ · 2004-05-26T00:15:25+00:00

Have recieved a heap of vw motor bits of a mate and one has had the head machined to fit a second spark plug. Just a quick question would a 009 create enough spark to run off of one lead or is a different way. Would it create much more power or not have enough drive for two.

Peter Leonard Moderator Volatile

1,456 posts · joined Apr 2003 · 3 Jun 2004, 11:30 am

#181846

just bought a few jets.... very expensive way to buy brass. mine's never detonated, but I'd like to sort it really really well on a dyno, so I'll wait till then. no sense melting a piston screwing around in my backyard.... 😀
also will be fun to see what the twin plugs do to the torque curve 😎

let sleeping dubs lie

56astro Custom Title Time!

1,772 posts · joined Aug 2002 · 3 Jun 2004, 11:45 am

#181849

Peter Leonard wrote:also will be fun to see what the twin plugs do to the torque curve 😎

Ya reckon it'll be a curve or a straight line??

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

fullnoise Fahrvergnugen

964 posts · joined Sep 2002 · 3 Jun 2004, 1:27 pm

#181880

So Peter, will you have the car ready for nambucca?

CYA CT

esratrams

tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 · 3 Jun 2004, 6:39 pm

#181980

Guys
When I fitted the twin plug heads to my Ducati (900SS air-cooled) the power gains were mostly felt at low and particularly mid-range.
The top end actually suffered a fair bit untill we re-curved the ignition and pulled quite a few degrees out of it up top. With 2 flame fronts during ignition, the combustion process is over pretty quick sort of mimicking overly advanced ignition and altho the engine did not detonate any more thatn usual, it lost a significant amount of power as the revs rose up high in the range.

It felt pretty much stock after that. No real gains to be had above about 5000rpm but below that was really grunty.
L8tr
E

Im not a complete idiot, quite a few parts are missing....

Peter Leonard Moderator Volatile

1,456 posts · joined Apr 2003 · 4 Jun 2004, 12:50 pm

#182285

hope so chris 😀

looks pretty phenomenal and all 😀

let sleeping dubs lie

Peter Leonard Moderator Volatile

1,456 posts · joined Apr 2003 · 7 Jun 2004, 7:11 pm

#183575

Stan's new dissy is custom curved to suit the twin spark setup, and has less advance than usual built in, so it's a bolt on mod. gotta love simple bolt on mods 😀 Steve, I'll post the torque curve/line just for you... since you missed out AGAIN on seeing the latest development last time I was up your way. sorry bout that btw:beer

let sleeping dubs lie