Fuel octane vs dynamic compression ratio
Thread Starter
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Joined: Dec 2022
Posts: 172
Likes: 25
Fuel octane vs dynamic compression ratio Ok this thread is to see what limits people are pushing with pump gas with what dynamic compression.
87 USA 91 AUS
91 USA 95 AUS
93 USA 98 AUS
So if people could enter what there combination is and what fuel they are running. This will help people in the future decide what they want to build a given engine combination and fuel requirements for that combination.
Copy and paste this as a template for engine specifications for your build.
Engine size
Bore
Stroke
static comp
Cylinder head cc
Rod length
Deck height
HG thickness
inlet close @ .006
Dynamic comp
Fuel octane USA or AUS?
87 USA 91 AUS
91 USA 95 AUS
93 USA 98 AUS
So if people could enter what there combination is and what fuel they are running. This will help people in the future decide what they want to build a given engine combination and fuel requirements for that combination.
Copy and paste this as a template for engine specifications for your build.
Engine size
Bore
Stroke
static comp
Cylinder head cc
Rod length
Deck height
HG thickness
inlet close @ .006
Dynamic comp
Fuel octane USA or AUS?
Thread Starter
On The Tree
Joined: Dec 2022
Posts: 172
Likes: 25
This is an example.
Wallace Racing Online Calculator used for all calculations.
My build list is as follows
Engine size 5.7 346.7
Bore
3.903
Stroke
3.622
static comp
11.46 to 1
Cylinder head cc
66cc
Rod length
6.3''
Piston cc
6cc dome top
Deck height
0
HG thickness
.040
inlet close @ .006
69.44 ABDC
Dynamic comp
8.74 to 1
Fuel octane USA or AUS?
93 USA 98 AUS
Wallace Racing Online Calculator used for all calculations.
My build list is as follows
Engine size 5.7 346.7
Bore
3.903
Stroke
3.622
static comp
11.46 to 1
Cylinder head cc
66cc
Rod length
6.3''
Piston cc
6cc dome top
Deck height
0
HG thickness
.040
inlet close @ .006
69.44 ABDC
Dynamic comp
8.74 to 1
Fuel octane USA or AUS?
93 USA 98 AUS
Last edited by Shtstr; Jan 1, 2024 at 08:01 PM. Reason: Auto correct
