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datssr

Bore size with liners

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What is the biggest bore size people are running with sr20det Darton sleeved blocks with reliability. Running spool stroker crank and rods.

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I was looking into tbis a few years ago and was advised 89.5mm. Give you the chance for a .5 rebore down the track incase disaster strikes

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And is 9.0 to 1 compression the most popular choice

 

Depends a lot on setup if you are running on e85 since knock resistance is so good I would sneak it up a bit

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Running E85

260/270 cams

EFR7670

 

P12 8H6 Head with 2.35L bottom end.

10:1 Compression ratio.

EFR 7670 0.92A/R twinscroll.

 

I think we'll both find the 7670 a bit on the small side!

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I'm thinking the same with my EFR7163 and 2.2L with OS valves... Will probably be too small.

 

Yours sound like a match made in heaven for a TS 8374 being 2.35L.

 

 

Compression any lower than 9.5:1 for a car running e85 is a waste I think 10:1 is more like it.

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