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3.2 to a 3.4 10.5:1 v 12.5 :1 what increase?
Hi Engine gurus,
I have a twin plugged 3.4 with 10.5:1 compression, GE 60 cams, 46 PMO What increase HP & toque could i expect if i install 12.5:1 Pistons? Any one have built such a engine and have dyno numbers? I can run up to 112 fuel. Thanks |
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08-09-2018, 01:47 AM
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What are you getting now? Will depend on timing also. 12.5:1 is pretty high, even on 112 gas...
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'87 Carrera (3.4L) w/Turbo, full-bay IC; front bumper aux oil cooler, etc. '07 Boxter |
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08-09-2018, 03:45 AM
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Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
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How about you run a set of PMO 50's instead?
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Aaron.  F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
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08-09-2018, 05:54 AM
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Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
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How about you run a set of PMO 50's instead?
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Aaron. F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
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08-09-2018, 06:18 AM
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Why PMO 50mm?
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10-14-2019, 02:53 AM
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