CDI application for ae111 blacktop

[gt20v]

Ive been offered a CDI unit from Ultra.is there any benefit at all to fit this in?
any problem at all?

I know there a benefit but disadvantage??

thank you.

[ROBODISCO_20v]

What is it first ?

[Rick]

CDI "Capacitive Discharge Ignition" or "Capacitor discharge Ignition"

Basically a CDI ignition system greatly increases the voltage available to the spark plug allowing for a longer, more intense spark. I would say quite pointless on a stock engine.

[ROBODISCO_20v]

This system you've been offered what does it consist of? Is it just a more powerful coil or is it a full dizzy set up?
I've put an MSD coil on my levin & it was a definit improvement over the stock one.
If you want to take even better advantage of a more powerful coil get some NGK Iridium spark plugs and 7mm leads. This is what i have on done on mine. The standard iridium plug part number for a 20v is BKR6EIX11. If you have a turboed one you could go a heat range colder, 7. but you'd probarbly also want to go for a smaller gap which i dont think they do in iridium, i know you can get them i platinum though.

[Lloyd]

Because obviously you cant close down the gap on a sparkplug....

[ROBODISCO_20v]

Well you're not surposed to on platinum & iridium tip plugs.
It can damage them and shorten their life span

[Mr Revhead]

iridiums are over kill, platinums are more than fine.

the gain over the stock coil was prob casue your old one was poked, they are knowen to fail. also the coil lead on 20vs are prone to wearing out rapidly. i replace mine every 6 months or so. so on a stock engine, you wont find any gains on a high performance coil

[Xavier]

iridiums are over kill, platinums are more than fine.

the gain over the stock coil was prob casue your old one was poked, they are knowen to fail. also the coil lead on 20vs are prone to wearing out rapidly. i replace mine every 6 months or so. so on a stock engine, you wont find any gains on a high performance coil

how do u know when to change the coil lead?

[Mr Revhead]

you may notice a slightly rougher idle, or you can test it.
i replace it often cause it costs stuff all so id rather do it as part of my usual servicing

[Xavier]

you may notice a slightly rougher idle, or you can test it.
i replace it often cause it costs stuff all so id rather do it as part of my usual servicing

i do get slightly rougher idle when my engine is warm, and how can i test it??

[Mr Revhead]

with a multi meter
check the resistance, cant remember the exact figure but around 8ohms per foot is the highest you want.
im sure ill be corrected if wrong!

[JT]

with a multi meter
check the resistance, cant remember the exact figure but around 8ohms per foot is the highest you want.
im sure ill be corrected if wrong!

LOL, 8 ohms

4age manual recommends no greater than 25K ohms for a single lead

[Xavier]

so which is which? if i got a multimeter, i just poke the both end and check the resistants getting 8 ohm or 25k ohm???

[Mr Revhead]

jt looked in a book, i did it from memory
u choose

[sergei]

should be in kOhms , wires act as resistive loads, to remove RF noise, etc...

[Lloyd]

Rule of thumb is 8k per foot roughy. Some sets read higher and some lower. As long as they are all relative to each other and not too far from 8k per foot then they should be fine.

[Xavier]

ok, if the reading is more than 8k ohm and less than 25k ohm, that should be alright, right? cos most of the coil lead is just over 1 foot long rite...

[Xavier]

i measure one of the coil lead from the distributor, not to the spark plugs but to another part... measuring at 6.9k ohm, is that alright as it is about 1 foot long...

[ROBODISCO_20v]

iridiums are over kill, platinums are more than fine.

They cost the same, in some cases iridiums are cheaper. From personal experence I can say 20v's suit iridiums plugs better than platinum, they just seem to make the engine rev better.

[CEvans]

are trd leads any better than stock onrs?