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Location:
adelaide
Registered:
November 2005
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tuff pistons for supercharged 4K.. what other makes fit??
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Mon, 14 November 2005 13:41
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Hi, I have just pulled apart my supercharged 4K and found 3 cracked pistons!!
What I need is stronger new pistons... forged ones will cost around $1200 plus from SPS in Melbourne... As a cheaper alternative, has anybody found pistons from other car makers that fit either 4K or 5K?, (Ideally from a turbo engine for lower compression, around 9:1 or less).
I have done hours of searching and have not found much yet. It seems Gemini, some Mazda may be close, but I think a piston from a factory turbo should be stronger??. The ACL catalogue that I looked at didn't show comp ht, or pin diam.
I also found a reference on the net to using 1G-GTE pistons in a K motor, but so far I haven't found the specs for the piston and rods, apart from the 75mm diam.
Any comments or suggestions/ info appreciated.
Thanks, Kevin.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Mon, 14 November 2005 14:03
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you need to find an old ACL cat, they have pin heights etc...
the ACL pistons are much better than the repco/toyota ones which, as you found, usually come out in pieces..
for a cheap effort, i'd go the ACL's first...
if you are getting serious abtu it, get shrter pistons, lower pin height and overall height, and get longer rods...
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Location:
Strathfield / Sydney
Registered:
July 2003
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Location:
adelaide
Registered:
November 2005
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Tue, 15 November 2005 13:42
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Hi, email sent re ACL catalogue, thanks.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Tue, 15 November 2005 14:22
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| Bananaman wrote on Tue, 15 November 2005 18:19 |
I've got the computer proggy of the ACL catalogue (no idea how or why, but i do) and it seems to have the specs you want
ed: Better yet it also has a list of what other motors the piston kit you have selected is used in
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is that the old ACL cat in PDF form? wanna host it for a bit? 
i have new one here, but old one back home 
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Location:
Melbourne, Australia
Registered:
March 2005
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Tue, 15 November 2005 15:46
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No, I think he's talking about the ACL parts catalogue PC application, which at one point was available for download from the ACL website.
I've got the old PDF with pin diameters, compression heights etc. but no hosting. It's 15mb.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Melbourne, Australia
Registered:
March 2005
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Tue, 15 November 2005 21:21
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Yes, that's it.
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Location:
adelaide
Registered:
November 2005
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Re: tuff pistons for supercharged 4K.. what other makes fit??
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Thu, 24 November 2005 12:50
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Just wondering what pistons have people been using in their turbo/supercharged 4K or 5K engines.... standard?????? and how have they performed?????
thanks, Kevin.
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