RabbitGTDJoe
Veteran Member
Building m-TDI 1z; Machined pistons back...PICS
Well...breaking it down and am ready to go. I'm building a 1z block back up and was going to send in the stock pistons (1z) to swaintech for a top and side coating to help with heat dissapation through the piston, as well..hopefully taking that "care step" in keeping their strength under high boost/more fuel. The plan. I'll be using a plenum style intake manifold I've been working on as well as a DI specific modified mechanical injection pump with a 12mm head. Might end up at 11mm if I don't like it. Haven't concreted my decision on the nozzles yet, but it'll be something larger to support all that fuel. My question...or rather concern in doing some digging into the forums regarding pistons.
What are the inherent weaknesses in the 1z pistons? Will my steps with SwainTech help as a safety against failure? I'd hate to be running 20+psi of boost on this nicely rebuilt motor only to toast a piston. The coating will go a long way but I'm interested in the piston design itself between the 1z and ALH/later models. Are they made stronger? If someone could help it would be great. I was going to send them in this week but am going to do some more digging and see what you guys have to say.
Joe
Well...breaking it down and am ready to go. I'm building a 1z block back up and was going to send in the stock pistons (1z) to swaintech for a top and side coating to help with heat dissapation through the piston, as well..hopefully taking that "care step" in keeping their strength under high boost/more fuel. The plan. I'll be using a plenum style intake manifold I've been working on as well as a DI specific modified mechanical injection pump with a 12mm head. Might end up at 11mm if I don't like it. Haven't concreted my decision on the nozzles yet, but it'll be something larger to support all that fuel. My question...or rather concern in doing some digging into the forums regarding pistons.
What are the inherent weaknesses in the 1z pistons? Will my steps with SwainTech help as a safety against failure? I'd hate to be running 20+psi of boost on this nicely rebuilt motor only to toast a piston. The coating will go a long way but I'm interested in the piston design itself between the 1z and ALH/later models. Are they made stronger? If someone could help it would be great. I was going to send them in this week but am going to do some more digging and see what you guys have to say.
Joe
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