Help! Head gasket for Pinto...

Hi!

I've got a problem... My head gasket by Victor Reinz (for Cosworth) said "bye bye..." and I don't know why...

My boost 1.5 bar

Any ideas, friends?

turbo?
what type of headbolts are you using?

combatkit skrev:

turbo?
what type of headbolts are you using?

Stock...

What degrees on the ignition on 1.5bar?

For beginning I created this map

what is this? Do you use some kind of piggyback?

Mikael skrev:

what is this? Do you use some kind of piggyback?

Yes Piggyback: ECU Master

The creator of this piggiback is in the process of writing the new firmware "stand alone fuel". It's will be completely independent control of fuel dose

And what is the standard ignition degress? Hade you checked the ignition timing? I think the gasket failed because of knocking

Sorry I did not write to the map legend: -1 = -1 degree.

I set the ignition at about "0". Maybe you're right, because I heard a knock at 4000RPM, when I tuned fuel map...

I made a mistake, because the head could not be compensated

Is the spark plugs NGK AP7FS are good? Or better AP8FS ?

Does std Cosworth gasket will work at 1.5 bar of boost?

Yes i know, but do you know what the standard ecu degrees is?. if it 30 at 4000 rpm and 1bar and you lower 8 degrees you have 22 and with stock compression it might be to high

Mikael skrev:

Yes i know, but do you know what the standard ecu degrees is?. if it 30 at 4000 rpm and 1bar and you lower 8 degrees you have 22 and with stock compression it might be to high

I dont know I have ECU from Sierra Is thats all what I know but I understand what you mean.

I think that in 4000 was about 1.5 bar... What should be more or less ignition advance?

Hard to say, try lowering 5 degrees

Mikael skrev:

Hard to say, try lowering 5 degrees

Ok, but std Cosworth gasket is not too weak for such a big boost?
Can you recommend me some gasket?

no it´s not. But you need a really good map to make it hold

Thanks a lot! I really like your projects and very often I look at your forum. I learned a lot here and many of the ideas I used.
I love Ford just like you

Thanks for all, we will be in touch

/Kriss.