I've just realised my HT leads are just odds and sods. So time to treat it to new dizzy cap, rotor, leads and plugs, points n condenser. I'm using points and can't splash out on electronic for now and want to get decent leads without spending silly money. Type 4, 2056, 86b cam, idf40s - so not a revver but should have some grunt. Any recommendations please for leads?
I’d try and find a decent set of Beru leads. Avoid the fancy American ones (forget the name). They’re a pain. You don’t need anything special for a boggo aircooler.
Not a revver? "Web Cam Type 4 Camshaft, 86B Grind, 00-362 is designed for Type 4 engines, and it's specs are .500" Valve Lift with stock 1.3:1 Rockers, 300 degrees of advertised duration, and 260 degrees of duration at .050". Awesomely Broad Powerband! Expect a powerband from 3000 to 7000 RPMs, the more headwork and carburetion the better the top end will be. This cam drives like an Engle 120 but keep pulling! Valvetrain is not "Harsh", but not easy either. This cam works best with a 9-9.5:1 compression, and the more headwork and carburetion the better it will run. Nice 800RPM idle with dual 2bbls"
I bought silicone leads because I was fed up with the quality of the usual leads. Taylor Spiro Pro. They were about £30 a set from Stateside Tuning. They dont melt or go hard with age. And you can probably also afford an Accuspark electronic unit for retrofitting a Bosch distributor for £30 which seems to have precisely the same performance as a Pertronix Ignitor III... The combination just needs new sparkplugs every year /10k miles or so.
Small(ish) capacity and a big cam – it’ll have a steep torque curve and it will be a revver with not much low-down grunt. Web 86 would have been a better choice for a bus, and zedders wouldn’t even agree with that. I use Bosch 8mm silicone leads.
Too right! And you can bet that 3,000rpm start point is really only just coming on cam and 3,500-4,000rpm is more realistic. For me and my cynical reactionary view, 86b is what the mercans would call a stop light to stop light weekend warrior cam...for a car. I'll be very interested in how you find it though Mark.
I can second the Taylor leads that Mike recommended. I bought a set for my Karmann Ghia (now long gone) from Stateside at Slough Swap Meet. They were the best HT leads I ever bought by a country mile. Just be aware you have to make up your own king lead though. Stirlingmoz
