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Exhaust valve seat NA vs Turbo

Posted: November 28th, 2009, 12:05 pm
by Abarthnorway - Remi L
Hi!


When cutting exhaust seats by hand (Neway) I have noted some differences in hardness between heads. Thema Turbo/Integrale 8v exhaust seats seems to be much harder than on the Fiat NA twin cams.
Fact or just imagination??

If differences exist, does this indicate that a NA exhaust seat do not have the specifications needed for turbocharging??

All answers appreciated:-)


Best regards
Remi Lovhoiden

Re: Exhaust valve seat NA vs Turbo

Posted: November 28th, 2009, 3:42 pm
by Guy Croft

Re: Exhaust valve seat NA vs Turbo

Posted: November 29th, 2009, 2:33 am
by Abarthnorway - Remi L
Hi Guy!

Thank You:-)

Best regards

Remi