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The mkiv Supra Owners Club

Building an engine, step by step.


hodge

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Great to see this thread John.

 

I will follow this very closely, to get a max of info when I start in a couple of months.

 

I will also go for Mahle pistons, and my Carillo H-beam HD rods have already arrived together with L19's.

 

Good luck ;)

 

 

Nice setup.

I'll be ordering my pistons in a few weeks. So I can then get the measurements to have the block machined.

 

- - - Updated - - -

 

You've got issues ;)

 

Well that's just common knowledge.

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any notes on going for the Pro-series rod over the "higher ranking" Carillo h-beams ? it seems like they also can take some serious power, what are Pro-series ratings ?

 

These are a much cheaper option that Carrillo rods. And judging by the abuse Jamie has given his engine over the last year or so, they'll take whatever I can throw at them and more.

There rated to over 1000hp so it's all good there.

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I've just started reading Tony Licence's engine build thread. This thing is basically a complete how-to on building an engine. It's perfect for a reference. It's answered a lot of my questions already and shed some light on potential issues I would probably have had encountered.

I'm pretty lucky I guess, I work in a machine shop so have access to all the measuring equiptment I'll need for the build, so that's going to save me a lot of money for sure.

 

 

 

So, piston size recommendations, do I go for 86.5mm or 87mm. Again, what are the pro's and cons. Or is it just a case of how oval or damaged the bores are in the block?

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You wont gain much displacement at all from going with a bigger piston its just mainly for how warn your cylinders are. I would go 86.5mm to avoid removing too much material between cylinders. Are you going the full treatment for the block, plateu honing, line boring etc?

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It won't be getting line bored, but yeah, i want it decked, bored, honed and cleaned out. Also most likely having all the core plugs replaced too.

 

For the sake of a few quid I would definatley replace the plugs to inspect for any kind of debris that may have got stuck over the years. The best cleaning method would be a caustic soda bath but im not sure if anyone does this these days I think they just jet wash it. You might need it line bored if your changing the bearings but im not 100% sure.

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For the sake of a few quid I would definatley replace the plugs to inspect for any kind of debris that may have got stuck over the years. The best cleaning method would be a caustic soda bath but im not sure if anyone does this these days I think they just jet wash it. You might need it line bored if your changing the bearings but im not 100% sure.

 

You can get various sized bearing to compensate for and wear issues. If it had to be line bored then I would fit a set of billet mains. I'll have the journals all checked prior to machining to make sure there's no issues there before the machining work starts.

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