Upgraded HT leads

[nyk]

Judging from past experiences uprated HT leads are only any use on high boost turbo applications in conjunction with colder plugs to maintain spark as high boost pressures. On standard plugs and leads it has been known to blow the spark out.
For that reason a higher current needs to travel down the HT leads to the plugs to give a brighter more powerful spark.

On an NA car never really noticed any difference, car manufacturers usually put plug leads on a car that will last 50K miles or above.

Magnicor's life time guarantee is good but if they ever fail they have to be sent off for testing, leaving your car not running until they decifer the problem. In which time you'd buy a new set or put the standard ones back on anyways.

Strange you should say that.

A YB turbo was on the dynocell earlier in the year, specced to make 450bhp the builder said.

No matter what they did they were 150bhp short.......and i mean every sensor, loom, coils, Ecu etc etc.

Some random walks in and says 'you'll want those magnecores off'.........swap them for stock vauxhall XE leads.....boof, 150bhp by swapping leads to 'inferior' ones.

the experience i was referring to was an incident with ken at RE on an escort turbo, he cured the problem by fitting colder plugs which he said would work well with the leads, a YB has deep plug recesses which means its plug tip is not in the direct line of boost pressure so standard ford or indeed XE leads would be more than adequate as a YB would not encounter the problem with blowing the spark out, colder plugs more often than not need a greater energy for them to operate properly.

[BenR]

Pardon?

A spark blowing out is most commonly down the plug gaps being too large, not because they are colder or the leads are inept.

And 'colder' refers to the operating temp range of the plug and how able it is to shed heat before. It requires no more energy to ionise the gap than a hotter plug with the same gap.

Colder plugs tend to run poorly when under light loads or where their internal temp cannot be kept sufficiently high enough to allow self cleaning.

[Lee Keefy]

Pardon?

A spark blowing out is most commonly down the plug gaps being too large, not because they are colder or the leads are inept.

And 'colder' refers to the operating temp range of the plug and how able it is to shed heat before. It requires no more energy to ionise the gap than a hotter plug with the same gap.

Colder plugs tend to run poorly when under light loads or where their internal temp cannot be kept sufficiently high enough to allow self cleaning.

dont know about other cars but an escort turbo is particularly choosy how it runs on anything other than a cold plug past 16 psi,an ngk plug can be taken below the recommended gapping and still blow out,i know this because ken at RE CHARGED ME £170 TO TELL ME!!

[BenR]

Thats because its a crap engine.

Lots of timing because of the hemi head, leads to high tip temps and the plug needs a high insulator to disperse the heat generated from the poor turbo engine.

You'll always want to run a copper core plug in a turbo, and typically the more power you make, the less plug gap you need. Not really the spark blowing out, but high cylinder densities means that the same constant voltage cant ionise the same gap on in a denser atmosphere.

[Daz.]

Sooooo If I want fancy blue leads then what should i do??

[VIPERONE]

buy a reelof silicone tape in blue fromdemon tweaks, and invest in some standard renault leads.


the best leads visually i have seenare availiable in the usa for the willy, they have a strange add on to boost the spark,

[BenR]

http://www.nology.com/hot.html

[Daz.]

http://www.nology.com/hot.html

Interesting read!

Just looking at the Q+A though and it seems some tinkering might be nessacary to get them working right - I was just hoping for a plug and play kit - I want to start doing more on the car myself but doubt I can install these on my first try - ignition timings aren't my strong point

[BenR]

they are only leads.......you can do it.

[drsmith1979]

has anyone tried those bad boys? they look uber cool! gimicky or actual factual do we think? i fly to the US all the time so could pick them up there and post back or bring back on the cheap if people are interested?