Thread: VVL 11.5 : 1 compression question

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2010-10-04 02:45:21

Speedracer Online/offline status of Speedracer is unknown

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VVL 11.5 : 1 compression question

As seen using the N1 pistons in the vvl gives a 11.5 compression as they say, will this work with 92octane fuel in the caribbean???

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2010-10-04 03:10:05

beefyvvl

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I believe with N1 pistons it would be around 12.7:1 or you can shave them or notch them for lower compression. It should be doable.

I'm planning on doing the same thing with my engine since I have rod knock.

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2010-10-04 03:17:59

macakin

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I have them on my engine never had any problems 93oct, at least it works for me

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2010-10-05 00:54:58

THOR

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if a vet gasket is used then how much will the cr fall if it is 12.5 to start with

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2010-10-05 02:31:31

sr20b14jerban Online/offline status of sr20b14jerban is unknown

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I thought ve with n1 pistons compression was 11:1...

Can someone confirm this?

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2010-10-05 03:29:34

Autech

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If the motor is dead stock - ie never machined, then its close to 12.8.

Once you skim the head and the block - it raises right up. After milling my head and skimming the block i was up near 13.4 WITH a VET gasket.

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2010-10-05 10:28:52

kiwi-japie Online/offline status of kiwi-japie is unknown

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Originally Posted by Speedracer

As seen using the N1 pistons in the vvl gives a 11.5 compression as they say, will this work with 92octane fuel in the caribbean???

If I was living in the Caribbean, I would have give it 92 proof of the Caribbeans best rum!!!!

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2010-10-05 12:55:18

blo0d

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@autech could you give an idea of the setup?
What headgasket?
What mm shaved?
And finally how did you accurately measure the comp?
Thanks

I'm thinking about going n1 pistons...

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2010-10-05 16:54:24

alex_b13

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i think MIKO has a thread for this the n1 pistons in a sr20ve.

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2010-10-05 17:22:04

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blackwater32 Online/offline status of blackwater32 is unknown

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Originally Posted by sr20b14jerban

I thought ve with n1 pistons compression was 11:1...

Can someone confirm this?

^^ Your thinking about the 20v pistons. Someone that measured told me n1's are around 12:6. Ive never done it myself though.

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