Outer Limits 4x4 Board

Hi

I have a turbo TB42 on straight LPG wanted to run colder plugs repco gave me the BKR6E just wanna make sure there the right ones. As the NGK said to run BP6ES for a colder application.

Thanks

Rick.

If they are both 6's they will be the same heat range.
Be carefull going a colder plug they can be temperemental at idle. I went back to standard BPRES6 in my 3.0L turbo LWB and they were fine even on 12psi. Maybe close your gaps down a little.

Cheers mate

The only reason i want to go colder really is becuase of the LPG i did run duel fuel but now straight gas and a turbo..

the gaps are ment to be 0.8 not sure what i should go down too..

I brought some new Top Gun LPG leads ment to be good shit and also got a high intensty coil to go with it

Rick.

I think they are both equivalent, but the one with R in the name is a resistor plug. Doesn't make any diffence other than stops your radio buzzing with engine speed to to EMI. (electrical noise)

LPG requires more voltage for an arc to initiate (NGK technical handbook shows voltage requirement graphs) so if your ignition is good then you can keep near std gap size, but it is well known that gap size has zero affect on power. Too big a gap however and the ignition system will break down somewhere and you will get misfiring. The more boost the worse it gets.

Thanks mate that was good to hear..

My headunit has a built in thing to stop that buzzing anyway .. so i'll use the plugs i have now..

Thanks

Rick.

If NGK suggest BP6ES then I would opt for BPR6EY.

You have the added protection of the resistor which does protect electronic devises.
And the plug also has a V in the electrode which helps to produce a fatter spark.

A BPR will be dearer than a BP. Group 2 v's Group 1 pricing. (usless info)

hmm fark

Just finished putting in the BKR6E spark plugs .. if they are shit i'll change them next week they were only like $10 for the lot hehe

Rick.

Mulisha wrote:hmm fark

Just finished putting in the BKR6E spark plugs .. if they are shit i'll change them next week they were only like $10 for the lot hehe

Rick.

Should be ok Rick.

From memory K designates the nut size.

E & EY are both V electrode.

Andrew

When i had Dual Fuel i tuned it for gas, i got rid of the NGK plugs and went Denco plugs. lasted longer when running gas.

Thanks guys alot !!

I put them in with a gap of 7.6mm and on the plug said NGK "R" and it had a V groove .. And Weeksy ur right about the size of the plug as my old ones were big and the new ones i have to use a small spark plug socket..

Thanks

Rick.

Mulisha wrote:Thanks guys alot !!

I put them in with a gap of 7.6mm
Thanks

Rick.

hope you mean 0.76

hmm i'll have to check...

isn't 7.6mm almost a cm? LOL

It must be .76

They come preset at 0.8mm so 0.76mm would be right.

The ground electrode would have to be straight to achieve a gap of 7.6mm

yeah lol it's .76mm as i had to tap them down a little..


What do old spark plugs ment to look like when running on LPG for a while??


Mine were very werid looking can get a pic but later if they don't sound right but they looked very dry and almost rusty

Rick..

And yes this is around the electrode and that ring..

what about the bosch W8DC, i run them in my standard TB42 no idea if they r suited to your application or not

if its a red build up its caused by fuel or oil additives from memory

http://www.bosch.com.au/content/languag ... tcover.pdf
check out page 16 of this it showes all they defects and what causes them