Normal Vs Heavy Duty Leads

[robtek]

Hi guys,

Would you spend the extra $15-$20 for extra heavy duty leads compared with normal leads?

Any major driving difference as the heavy duty leads apparently are thicker and generate more spark?


Cheers,
Big Rob

[private9]

I recently got a set of custom ICE 9mm ignition leads made up for my car. They were $140, but the workmanship was sensational, and they basically guarantee them for around 300000kms which is the main reason I bought them.

As for whether they'll actually make a difference performance wise, I doubt it....unless you've got a rather angry NA setup or a turbo with some decent boost happening.

[CaRtZ]

put it on a dyno and u will most likely see a minor difference but u wont feel it. alot of people dont think there is anything to be had from bigger leads. i dont belive leads on thier own will do much however put in some high quality plugs at the same time and it again will make a difference on the dyno but u wont feel it.

[BRADMAN]

i guess i would be asking this question......

a lead is just a conductor....
that conductor passes a certain current/voltage between 2 items
the dizzy and the plug.
therefore as long as the lead is capable of carrying the current/voltage output of the coil in use.
how could there be any difference in leads?

i think of it like a pipe....as long as the pipe is equal to or greater than the item you wish to shove down it. it should work no matter what.

the only difference would be quality of connectors/conducting material
anyone disagree?

brad

[private9]

Originally Posted by BJSPENCER85

i guess i would be asking this question......

a lead is just a conductor....
that conductor passes a certain current/voltage between 2 items
the dizzy and the plug.
therefore as long as the lead is capable of carrying the current/voltage output of the coil in use.
how could there be any difference in leads?

i think of it like a pipe....as long as the pipe is equal to or greater than the item you wish to shove down it. it should work no matter what.

the only difference would be quality of connectors/conducting material
anyone disagree?

brad

Different leads have varying levels of resistance - ie current/voltage out is less than in.

In the real world in stock examples, I highly doubt there would be any tangible difference behind the wheel or on the dyno. That is, unless your leads were stuffed to begin with.

[~EFhastE3~]

Originally Posted by private9

Different leads have varying levels of resistance - ie current/voltage out is less than in.

In the real world in stock examples, I highly doubt there would be any tangible difference behind the wheel or on the dyno. That is, unless your leads were stuffed to begin with.

well providing the leads all have the same wire material inside them then that means that there will be no difference in resistance.. leads do not have resistors in them either so in the end it comes down to what BJSPENCER85 said: providing they are made to hold that amount of voltage or more- there will be no difference what so ever..
quite an interesting topic for nerds like us! LOL

[private9]

Originally Posted by ~EFhastE3~

well providing the leads all have the same wire material inside them then that means that there will be no difference in resistance.. leads do not have resistors in them either so in the end it comes down to what BJSPENCER85 said: providing they are made to hold that amount of voltage or more- there will be no difference what so ever..
quite an interesting topic for nerds like us! LOL

They do actually have some form of resistance. You can check your own with a multimeter. Many manufacturers also quote resistance figures.

[xr8 5.0]

I would go for ,the heavy duty/lpg top gun leads, as these are spiral core leads, most std lead sets ,top gun included, are only carbon supression leads,carbon leads have much more resistance per foot of lead then spiral core leads but not only that carbon leads start to deteriorate from the time they are installed, spiral core leads have a metal core inductor and so long as you don't break the leads or burn em on your exhaust will last 10x longer. The good thing is the heavy duty top gun leads are not much more then the std set, money well spent.

[robtek]

damn it, i bought the cheap $45 leads, "top gun" hehehe..first time ever changing leads..mate mine are so old, that the car is stalling...LoL....but i might return them for the heavy duty ones if it will see a difference during driving...for sure, autobarn quoted me extra $14 for heavy duty!


hmmm...decisions...:P


cheers,
Big Rob

[BRADMAN]

i used the heavy duty lpg TOP GUN leads on my ea last change i did.
i was so happy with them i bought them for my AU engine conversion.
they were recommed to me by the guys at East Coast Spares in ringwood.
so glad i went there for my leads...good guys down there...and prices were great
brad