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Tubro question re: JE Pistons
I've been running Wiseco pistons in my 8v turbo for the past 2 years.
Although I have only put around 5k on the motor I really like the pistons.
I was in the same boat JE or Wiseco, I did some searching and found that
more people suggested Wiseco for FI.
I also haven't had any big problems with detonation, there has been some
from time to time but that was more due to the lack of fuel + to much boost.
-Brian
85 Scirocco 8vT 01 Jetta 20vT 84 Rabbit GTI
86 Bronze Scirocco 8v
----- Original Message -----
From: "Don Walter" <dswalterwi@gmail.com>
To: "Dan Bubb" <jdbubb@verizon.net>
Cc: "scirocco scirocco" <scirocco-l@scirocco.org>
Sent: Sunday, December 17, 2006 10:07 PM
Subject: Re: Tubro question re: JE Pistons
> JE Pistons is owned by WiseCo. WiseCo is their premium pistons and are
> better design. They have many features that the JE's do not. The best
> one
> is that they use an offset wrist pin design to eliminate the piston slap
> and
> the oil scraper ring is 3mm unlike the 1mm on the stock 2.0L engine. You
> will not have good luck trying to go through their distributors as they
> will
> make you buy 8 pstons. I called the company direct and they were happy to
> take my order direct. In fact they did not have an off the shelf 16V
> design
> so they designed one on Solidworks for me. They added the domed area for
> the
> squish area, although you would want a dish for lower compression. Mine
> was
> 10.5:1 I sent them one of my pistons for verification. I had them give
> me
> an extra 0.050 cleareance for the valves. The best part is that they were
> cheaper than their JE counterpart and they were custom made. I paid $500
> if
> I recall. Let me know if you want any other information.
>
> Here is a link to my custom made pistons:
> http://scirocco.dyn.dhs.org/vw/list/Don_Walter/WiseCo%2016V%20Pistons/
>
>
> On 12/17/06, Dan Bubb <jdbubb@verizon.net> wrote:
>>
>>
>> http://i9.photobucket.com/albums/a95/jdbubb/86%20JH%20Turbo/DSC02781_small.jpg
>> On the right is a JE piston. 83mm, 9:1 CR, 8V, for an 86.4mm stroke.
>> On the left is a Wiseco piston. 83mm, 9:1 CR, 8V for a 92.8mm stroke.
>> See those little pads on the sides of the top of the Wiseco piston?
>> Those pads come within .040" of the sides of the combustion chamber that
>> you
>> can see here:
>>
>> http://i9.photobucket.com/albums/a95/jdbubb/86%20JH%20Turbo/DSC02885_small.jpg
>> and form a squish area that creates turbulence in the combustion chamber
>> and
>> makes the engine more resistant to detonation.
>> IMO the Wiseco is a better piston simply for this reason.
>> The JE is in my nephew's engine and it's not as resistant to pinging as
>> we'd
>> like. i.e he can't run as much boost as he'd like.
>> My engine is just getting broken in so I can't verify that it'll be
>> better,
>> but an engine with well setup squish areas has always performed well for
>> me.
>>
>> Double head gasket lacks a squish area just like the JE piston. A
>> non-starter in my book although a lot of people do it.
>>
>> Forged pistons need a slightly larger cylinder clearance since they have
>> higher thermal expansion. I can't hear any piston slap. You just need to
>> take it easy till they warm up a little.
>>
>> Both JE and Wiseco run about $550-575 for a set of 4 with rings and pins.
>> http://www.jrcmotorsports.com/ carries JE.
>> www.porttuning.com carries Wiseco.
>> I'm sure there are other suppliers.
>> Dan
>>
>>
>> From: "David Brown" <sharpshooter33@roadrunner.com>
>> To: "scirocco scirocco" <scirocco-l@scirocco.org>
>> Sent: Saturday, December 16, 2006 11:26 PM
>> Subject: Tubro question re: JE Pistons
>>
>>
>> If I go with a 3A or 9A does anybody have experience with 2.0 16V JE 83mm
>> 9:1 Pistons?
>>
>> I also remember reading somewhere that forged pistons have a looser fit
>> than
>> cast? Is this still true or is that a story started by someone along
>> time
>> ago.
>>
>> What is a good price for them and where can I get them?
>> What would my other options be? I have also heard of the double head
>> gasket
>> method.
>>
>> Thanks
>> David
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>>
>>
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>
>
>
> --
> Don Walter - Waukesha, WI
> 1986 8V Black Scirocco (Daily Driver)
> 1984 8V Audi 4000s (RIP 2/14/2006)
> 1986 2.0L 16V TEC 2 Black Scirocco (see progress at
> http://www.cardomain.com/memberpage/708939)
> 1986 2L 16V Toronado Red Scirocco (Ben's Car)
> 1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
> 1984 1.8 8V Pewter Scirocco (sold years ago)
> 1971 Karman Ghia (sold)
> 1969 Karman Ghia (sold)
> 1969 Beetle (sold)
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