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Registered User
Join Date: Mar 2011
Posts: 471
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Boring 930?
Hi guys,
Just wondering if any of you have bored out your 97mm barrels to 98mm and slipped in some 8.0:1 aftermarket forged pistons? Is this possible, and is it a worthwhile upgrade for a street TT'd motor? Boost will be limited to 1.0bar. Thanks in advance ![]() |
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Registered User
Join Date: Dec 2011
Posts: 114
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The 930 is not boring.
![]() Sorry just had to.
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Porsche 930####sold### |
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Forced Induction Junkie
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Quote:
IMHO, a bore out to 98mm w/replating is doable, particularly in a street engine. I take it that you will be changing cams along the way?
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Dave '85 930 Factory Special Wishes Flachbau Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P |
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Champagne on Beer Budget
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Yes...we did this to 3.2L fully finned cylinders for my engine...Very common way to get to 3.4L
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Einar www.einarsgarage.com Instagram @einars_garage https://www.facebook.com/pages/Einars-Garage/375533809160797 |
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Registered User
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,581
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Interesting! Can you let us know who did this for you and the costs? Haven't heard of that, would be a nice 3.4 rebuild option for me...
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'89 911 M491+Turbo '89 944 Turbo '88 928S4 '18 C63S Coupe |
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Champagne on Beer Budget
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Don at EBS took care of this for me...I believe it was about ~$1400 USD plus pistons.
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Einar www.einarsgarage.com Instagram @einars_garage https://www.facebook.com/pages/Einars-Garage/375533809160797 |
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Registered User
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,581
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Thanks buddy!
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