I didn't.
Hi all,
I think it remember discussion on this before but can't any info on here.
I'm almost finished turboing my factory na 4bd1. Should I add extra torque to the head bolts? (ie without removing anything just tighten more) I remember something about the turbo heads being clamped down more? Thanks very much in advance. :-)
Cheers,
Ramon
I didn't.
NO.....
there are headbolts for the turbo application and turbo specific head gaskets.
DO NOT try to tighten NA headbolts up to turbo specific headbolt torques. (snappage is on the list of potential failures if you do)
you can quite happily run sane (and even not so sane depending on your definition of sane) boost pressures and fueling on the NA equipment.
generally you will find that most places that supply the bits for the Isuzus simplify their parts system by ditching the NA parts that are replaceable with the turbo bits (headbolts, head gasket) so there is a good chance that you may already have the turbo bolts if you replaced the head bolts.
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
Thanks for the replies guys. Not the first time this forum has stopped be doing something stupid. :-o
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
Normally a 13 hour drive on the peninsula development road. Yeah no road side assist.
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