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Thread: What Is The Largest Piston That Anyone Put Into a SR20 Block Without Sleeving

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Posts: 11-19 of 19
2009-03-10 11:57:37
seriously Ive had my doubts.. but then again..
2009-03-10 12:00:11
Originally Posted by Coheed
So 86mm must be good for how much power? I've heard of guys making 700+whp on stock sleeves. So 88mm should be fine? This is really pushing it. I am scared to run 86.5mm on a high hp boosted app.

2009-03-10 12:47:23
Originally Posted by Andreas

Lol Andreas you crack me up. Well others do actually, hopefully he will figure it out by myself.
2009-03-14 06:08:57
OK I will qualify this a bit, I've only heard of allmotor 88mm engines & not boosted ones so I don't know how they would go on those.
2009-03-14 06:11:43
Well thats all good to know.

I was asking this as it would be easy to build a 2.1 L, 12.5 to 1 VE motor with a 88 mm bore.

Just buy some 88 mm pistons bore block out and drop them in.
2009-03-14 18:10:33
i posed this question a few years ago i believe.

possibly on the og forum.

all i go was nay sayers.

its good to see some people throwing out some info on the dash !

2009-03-14 18:29:27
The GTiR blocks were designed to be used in BTCC and JTCC where they bored them to 88mm and used a 82mm crank which was 1995cc's.

I know the GTiR blocks were cast with the liners thick enough to reliably do a 88mm bore. I would imagine the std blocks all use the same liners and 88mm would be ok as well.

I have done 2 87.5mm turbo builds before. both about 475whp
2009-03-28 07:31:20
What's the maximum piston size you can go with a standard VE headgasket?
2010-07-29 20:50:58
has anyone tried this, after the discussion?
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