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> 2316 Longevity report, What I found was very promising
Jake Raby
post Sep 6 2004, 06:51 PM
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Looks like I can raise the bar on this one a tad bit more. Its working out incredibly!

http://www.shoptalkforums.com/viewtopic.ph...7390&highlight=
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URY914
post Sep 6 2004, 07:01 PM
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Jake,

What is the bore / stroke combo to get to 2316cc?

Paul
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Jake Raby
post Sep 6 2004, 07:25 PM
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80x96
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URY914
post Sep 6 2004, 07:35 PM
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That's what I thought.

I still have my 97mm Aria's

What stroke should I go with 78 or 80?

(I know, simple question. Long answer.)

Paul
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Jake Raby
post Sep 6 2004, 07:46 PM
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yes, of course... The 80 stroke with the 5.325 rod length is an awesome monster! Especially for auto X and track...
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Jake Raby
post Sep 6 2004, 07:53 PM
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paul, whats the pin height on those pistons??? That makes a HUGE difference in how easy stroking is to achieve...
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URY914
post Sep 6 2004, 07:55 PM
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2365
I like the sound of that. (IMG:style_emoticons/default/smilie_pokal.gif)

Paul
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URY914
post Sep 6 2004, 07:56 PM
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I'll have to measure the pin height.
I don't know, never measured them, but I will now.

Paul
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URY914
post Sep 6 2004, 07:57 PM
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Top to centerline of the pin, right?
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Jake Raby
post Sep 6 2004, 08:27 PM
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what pin size are they??

measure from the top of the pin boss to the crown....Then measure across the pin and divide by two. Add the 1/2 of the pin diameter to the distance from the top of the pin boss to the crown and thats the pin height...

Hopefully they are 22mm pinned
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URY914
post Sep 6 2004, 08:47 PM
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I measured the pin and it's a 24mm.

And if I did it right the pin height is 36.893mm

Sound right?

Paul
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Aaron Cox
post Sep 6 2004, 09:07 PM
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QUOTE(URY914 @ Sep 6 2004, 07:47 PM)
Sound right?

Paul

(IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/unsure.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/huh.gif) (IMG:style_emoticons/default/wacko.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/blink.gif)
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Jake Raby
post Sep 6 2004, 09:14 PM
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Thats a very low pin height. It is set up for a stock stroke engine.... To use them would require very thick cylinder shims to gain decent CR.

Also they are 24mm pinned and not 22. All the rods that are matching this combo are 22mm pinned like a Type I.

I would sell those pistons and use the money to have some custom JEs made for them. They could use my JE forgings and just increase the diameter for your cylinders, that would be very simple. I could have the math done for JE in about 10 minutes if you wanted. This would yield only a .100 shim at the most.
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URY914
post Sep 6 2004, 09:38 PM
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Or use my stock 2.0 crank and run them as is?

Because who has 97mm cylinders to fit these pistions if I was to try to sell them?

Paul
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Jake Raby
post Sep 6 2004, 09:49 PM
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A stock cylinder can be bored to 97mm.......

You could keep it stock stroke, but DAMN what we can do if you stroke it.....
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Aaron Cox
post Sep 6 2004, 09:50 PM
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are they like domed pistons or something?
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Aaron Cox
post Sep 6 2004, 09:53 PM
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FYI arias piston thread
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URY914
post Sep 6 2004, 09:54 PM
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see here...


Attached image(s)
Attached Image
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Aaron Cox
post Sep 6 2004, 09:55 PM
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lightweight and domed i see.....
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URY914
post Sep 6 2004, 09:58 PM
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Jake,
What would a set of JE's with 22mm pin, 97mm bored with the correct pin height cost?

Paul
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