Thread: Interest in a 88mm 12.5 or 13.0:1 piston VVL?

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2013-02-19 19:04:51

#21

Doctor G

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JE already has a good 88mm piston out. With a higher wrist pin location.

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2013-02-19 19:23:11

#22

Kyle

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Originally Posted by Doctor
JE already has a good 88mm piston out. With a higher wrist pin location.

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2013-02-19 21:04:57

#23

Kyle

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What I am more interested in is piston material. I am looking for a low-expansion, aluminum alloy, to allow for tighter piston to wall clearances and better temperature stability.

The only ones I have found (so far) besides factory cast, are Mahle (4032 Aluminum material).

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2013-02-19 22:00:53

#24

cory

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Then go with a cast piston.. all the forged pistons will have a higher moly content and will expand more. Otherwise just set the correct p2w clearance. And allow it to get up to temp..

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2.0 218/153- 12.9@106
2.3 270/190- 11.6@116
2.4 285/210- 11.5@118
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2013-02-20 04:46:19

#25

B15NEOVVL

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88mm/13:1, @ off-the-shelf prices would be nice.

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2013-02-23 18:25:38

#26

Doctor G

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Originally Posted by Kyle

Originally Posted by Doctor
JE already has a good 88mm piston out. With a higher wrist pin location.

NISSAN - NISSAN SENTRA/200SX SE-R, SILVIA, 180SX & BLUEBIRD SR20DET - JE Pistons

It's not a sr20 specific piston

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2013-03-28 04:03:53

#27

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Just curious where this stands. @mazworxracing @mazworxsales, it appears from your last post that you seem intent on the 12.5:1 88mm piston. Is this so? They already offered an 87mm 12.5:1 so The bump to 88 and 13:1 wold have been a nice combo for non-custom pricing.

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2013-03-28 15:26:01

#28

Jybfan04

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Originally Posted by ashtonsser

Im sure you could however it would be .7 compression lower on a de/det head and .9 lower on a GTIR head. So just take that into account. A 12.5:1 VE piston would be 11.8:1 on a DE/DET

How much does a VE head bump up the compression to?

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