I'm running a stage 1 chip on my 92 sap.4x4.I was just wondering what would u set the gap on the plugs at?I'm using Motorcraft 071 plugs.Thankyou.Lee.

 

0.6mm, get a group a coil as it helps no end if you don't have one already.
tabetha

 

we have a 90 4x4 saph

we use ford escort cosworth platinum plugs set at 0.7 with a gpA coil @22psi full stage 3 set up .

check old plugs for any bad signs of incorrect fueling

i.e have u had it set up lately as it may have gone out of tune

have ours checked every year

 

No I haven't had it set up yet,only purchased the car a few weeks ago.I want 2 get everything sorted out on the car first,once that is done I will be taking it for a tune and maybe a new chip aswell.So 0.6mm gap then or 0.7mm but that is for your stage 3.Thanks for your help.Lee.

 

Sorry just had a thought.I have a standard coil at present,will the gap still be 0.6mm or will it be larger due to not having a group a coil?

 

u have a pm

 

If they are PP8s i respectfully advise you to remove them and use a cooler plug.

 

Stu,no they are Motorcraft 071 plugs and have been gapped at 0.67mm,I think 27 thou with a standard coil at present.
I have now got a new group a coil and once that is fitted should they be re gapped to 0.6mm?1992 4x4 sapphire cossie is the car we r talking about sorry I forgot 2 mention that.
Stu I spoke 2 u on the telephone a few days ago about going to a stage 2 and I asked u would the standard clutch and standard turbo be ok,I also asked would an RS500 intercooler be required.Stu u may remember as I'm from South Wales.
Stu,when I bring the car 2 u whether it be for a rechip of my current stage 1 or a stage 2 set up what plugs would u recommend for either stage bearing in mind I will be running my new group a coil then,also what plug gap would u use please?
Thankyou.Lee.

 

Plugs are fine up to 700bhp and 0.7mm is fine for stage 1. If it missfires youve got faults to fix.

 

Stu,when I bring my car 2 u for a stage 3 set up which plugs would u recommend PP8'S OR 071'S?Or maybe u would have different ones in mind?
Thanks.Lee.

 

What STU is trying to say is if you use pp8 in a stage three cossie you WILL melt the plugs with disastrous results.
071's are fine for stage three, there is a better plug fpr road use think they are R31(?) STU stocks these too.
tabetha

 

i use in my stage 1 4x4 cossie platinum motorcraft AGPR 12PP(gap1.1mm)
1 bar boost,and no problem at all....

 

pp8's do more than melt the plugs.... try melted piston and valves