10.4:1 pistons

Started by Storm_X, July 23, 2017, 12:05:09 AM

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Storm_X

Just wondering who is is or has ran 10.4:1 pistons in their 2 litre before.
"Alfa Romeo built to excite.. Some dream of driving the ideal.. I drive it"

jazig.k

Dad's '82 GTV currently.

aggie57

Lots of people over the years. Why the question?
Alister
14 Alfa's since 1977. 
Currently 1973 GTV 2000, 2020 911 C2S MT, 2021 Mercedes GLE350, 2023 Polestar 2 LRDM
Gone......far too many to list

LaStregaNera

Better off using the 10:1 pistons from the Motronic Spyders. Better flame front propagation.
66 GT Veloce
Bimota SB6

NigelC

Current 2017 Giulia Veloce - Red
Current 1979 Alfa GTV - Ivory (Gp S racer)
Past 2007 Alfa 159 2.2 JTS Rubino Red
Past 2003 Alfa 156 2.0 JTS Red
Past 1979 Alfa GTV Red/Rust

carlo rossi

I read somewhere on alfabb that these 85mm liners  were problematic in that unless you got the monobloc liner
they cracked ? I personally dont know mind you, the same blog said dont get the borgo either as they have issues as well
they did recommend the motronic however '
just my 25 cents worth
maybe they make the motronic
current cars
red 83 gtv 2.0


previous cars
Red 76 1.2/1.5 alfasud ti
white 79 alfetta 2000
alfetta 74 1.8
escort Lotus twin cam
bikes
ducati 900 ss 1979
moto morini 3 1/2 sport 1975/6
Moto morini 3 1/2 valentini speciale 77 oh and a deltek rockhopper

NigelC

The post I read on alfabb where the owner had constant problems with liners cracking was when he was using 12:1 compression.
Current 2017 Giulia Veloce - Red
Current 1979 Alfa GTV - Ivory (Gp S racer)
Past 2007 Alfa 159 2.2 JTS Rubino Red
Past 2003 Alfa 156 2.0 JTS Red
Past 1979 Alfa GTV Red/Rust

carlo rossi

yeh i would think that 12 .1 comp on that motor
is a little optimistic
current cars
red 83 gtv 2.0


previous cars
Red 76 1.2/1.5 alfasud ti
white 79 alfetta 2000
alfetta 74 1.8
escort Lotus twin cam
bikes
ducati 900 ss 1979
moto morini 3 1/2 sport 1975/6
Moto morini 3 1/2 valentini speciale 77 oh and a deltek rockhopper