Best spark plugs? Z20leh/z20let corsa turbo

[wkdkris]

as the title says, z20leh in corsa, best spark plugs, whatevers in atm theres a possibilty there been blown out during initial boost..

Cheers

[Ardenblueroy]

NGK BR7EIX....best IMO.

[wkdkris]

spot on cheers fella

[wkdkris]

1 more question
what is the 'K' for in spark plugs eg. BR7EIX <> BKR6EIX and im right in thinking the 7 or6 is the temp they burn at?

[Gordo]

http://www.spark-plugs.co.uk/pages/t..._technical.htm
http://www.ngksparkplugs.com/docs/te...bols_plugs.pdf

[vectra640]

I use Cosworth 071c, better than the others IMO and don't protrude into the chamber like the others

[Cav Lad]

I use Cosworth 071c, better than the others IMO and don't protrude into the chamber like the others

Yeah I use the same Cosworth plugs and can't fault them.

I've used different plugs in the past - Ngk -VX BCP7EVX and Idriums etc and they seemed to pop/splutter when in boost.

[DarrenF]

Standard GM Vxr plugs... Ran them at stage 4

[Ardenblueroy]

Do you have to adjust the gap on the cosworth plugs? And are these genuine ford??

[wkdkris]

Standard GM Vxr plugs... Ran them at stage 4

After some things ive read online about tips snapping off etc, think thats the way im guna go for now...OE.

I've tried many plugs, and when I went into boost the plugs where just not coping,

Now I'm running these eBay - The UK's Online Marketplace

I'm running at 15Psi and so far so good.

P.s these plug dont need to be gapped as they are 0.6mm, but take your old plugs out and you'll see the difference.

If no improvment its between the Cosworths and ardens suggestion...

[DarrenF]

GM is the way to go! Never had an issue but I would advise avoiding DENSO plugs from regal.

[Cav Lad]

Do you have to adjust the gap on the cosworth plugs? And are these genuine ford??

they are gapped standard to 0.6mm, And yes genuine ford. This is the plugs I use.

eBay - The UK's Online Marketplace

[Ardenblueroy]

Cool...I'll have to buy a set....I've had a very slight stutter when on boost...and at less than a tenner you can't go wrong.

[Cav Lad]

Cool...I'll have to buy a set....I've had a very slight stutter when on boost...and at less than a tenner you can't go wrong.

Yeah I was having same problems when I came into boost, but these plugs I can't fault, they seem to be working good on my spec.

[wkdkris]

at less then a tenner you certainly cant go wrong.... just cost 48.95 to order 4 GM's at my local dealership.....

[Paul]

£48.95 for plugs from Vauxhall?

Whats part number?

Why your not a member and getting trade price on these I dont know.

[wkdkris]

£48.95 for plugs from Vauxhall?

Whats part number?

Why your not a member and getting trade price on these I dont know.

a member of who? i will give the part number tomorrow once ive picked them up.. i dont know how to go about getting trade prices

[Ardenblueroy]

If you sign up...you will get discount. Best tenner you will spend this year.