af16 build

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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rag
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af16 build

Post by rag » Fri Jul 17, 2020 6:35 pm

I am going from a 1993 af05e to an af16e motor, I bought alot of good stuff for it and can name if ya want, but my question is I SCREWED UP and did a mini stroker crank in it 44mm, what size base gaskets and head gaskets to get it close to being right with the Polini corsa 72cc kit, i already know should have stuck with stock crank, 2.6 mm difference so my thought is split the difference in base and head but need more experienced input. Thnks

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Meatball
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Re: af16 build

Post by Meatball » Fri Jul 17, 2020 7:45 pm

The Corsa has an o-ring head gasket so adding gaskets there isnt happening. The +2.6 mini is a bit more than Id go. Youd need to change the port timing on the Corsa jug and then add base gaskets to achieve proper squish clearance. Using a degree wheel, check the timing. See the link below and use as a guide. Personally, I wouldnt go this route and try to do better than what Polini did. They chose the Corsa timing for a reason and they kinda know their stuff. I have a mini stroke crank/Corsa in one of my builds and it absolutely rips but its less than +2.6 and I had someone build it who knows ALOT more than me about 2t timing. Good luck! https://martysgarage.info/reference/two ... -duration/

If I were you, Id bite the bullet and get a quality 41.4mm stroke crank (like the MHR) and leave the Corsa how Polini made it....but you do you, man.
I need to find some new haters...the ones I have are starting to like me.

rag
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Re: af16 build

Post by rag » Fri Jul 17, 2020 9:13 pm

2.6 isnt that much tho its only 44mm compared to stock 41.4

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Re: af16 build

Post by rag » Fri Jul 17, 2020 9:18 pm

I already went thru the headache of installing this one in the case, but I maybe look at that option

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