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Old 06-10-2015, 12:21 PM   #1
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Default Wiseco Piston compatibility with VVT

Hi !

I'm re-building up a bit of frankenstein Turbo motor, and will be looking to put in some .040 over (84mm) Wiseco pistions. the Block is from a 94, and the head is a VVT head. The Wiseco man wasn't able to tell me if my valve pockets would be OK or not with this setup, so I thought I'd see if anybody has experience with this sort of setup...

Thanks !
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Old 06-10-2015, 12:49 PM   #2
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If it means anything to you, I'm using Supertech pistons with +1mm oversized valves in a 94 block and VVT head.

That being said, browsing through vendor listings, it looks like pistons for 1.8L are compatible for 94-05

See fab9tuning.com for instance
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Old 06-10-2015, 01:03 PM   #3
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Same motor. Roll on.
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Old 06-10-2015, 03:07 PM   #4
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Default Wiseco Piston compatibility with VVT

With stock VVT cam you will most probably have a lot of clearance even at full advance.
My setup however needs to be blocked at 42 degrees advance or the valves will hit, but why would you by that stupid .
Measuring/testing is knowing...
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Old 06-10-2015, 05:56 PM   #5
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Quote:
Originally Posted by NiklasFalk View Post
With stock VVT cam you will most probably have a lot of clearance even at full advance.
My setup however needs to be blocked at 42 degrees advance or the valves will hit, but why would you by that stupid .
Measuring/testing is knowing...
Cool, thanks - so do you have a modified VVT cam with higher lift or something ?
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Old 06-10-2015, 06:44 PM   #6
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Default Wiseco Piston compatibility with VVT

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Originally Posted by TheV's View Post
Cool, thanks - so do you have a modified VVT cam with higher lift or something ?
10.7mm lift and 305 degree duration.
I don't remember the min/max lift values at TDC, that's what a good builder is for
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