Fri May 10, 2013 2:49 pm
In soviet russia...
I've had a sort of obsession with old soviet cars and trucks. They are very intriguing to me, seeing how the other half lived. I went ahead and tried replicating some of the more popular engines that were installed in the more well recognized soviet vehicles (mostly trucks). Much of my data has been found at the website:
sovavto.net
which seems to be down right now. I also used a healthy dose of google search, as there are many errors on that website.
Some of these you may notice create very little power output for their size. This is because of a few factors. Very little competition did not exactly give companies incentive to innovate, and research and development suffered. Another large contributor was the very low octane gas that many of the Soviet vehicles were designed to run on. In the US, our gas is rated by AKI (anti-knock index) which is (RON+MON)/2. In much of Europe, the gas octane rating is only rated by RON (research octane number), which is why Europe appears to have higher octane gas, though the gas available in the US and Europe are actually about the same RON number.
In soviet countries, the gas was rated in MON (motor octane number), and was rated at 76 octane. In AKI terms this means about 78 octane, and in RON terms about 80 octane. This hampered the limit of compression ratios and ignition advance which severely reduced power and fuel economy. Soviet countries did have 92 octane RON rated gasoline (88.5 AKI), but it was not as common and was mostly for higher ranking party official's cars, late model (mid 80's) consumer cars, and foreign cars.
To make these engines, I had to do a lot of fiddling with a lot of settings like year and quality. I tried to stay close to their introduction years, but some I had to make later in production as some numbers were just not possible in the game. I also had to intentionally run some engines poorly to meet their original specifications. I selected the 76 octane AKI (80 octane RON) fuel in game, but when I could not closely replicate the engine on 76 octane, I selected regular grade 86.4 AKI and let myself go up to 78 octane.
This is the engine that was found in the GAZ-53B and GAZ-66. It was also used in a few different applications, but was a 4.3L pushrod V8 using a bore/stroke of 92mm/80mm with all aluminum construction. A two barrel carburetor was used. It produced 115HP and 166 lb-ft of torque.
This was the engine used in the GAZ-51 truck, which is the precursor to the GAZ-53. This same engine was also used in the GAZ-53A. It is a 3.5L pushrod I6 with a bore/stroke of 82mm/110mm with all cast iron construction. A two barrel carburetor was used. It produced 70HP and 125 lb-ft of torque.
This may be a more well known engine. This is the engine from the original UAZ-469. This one was very difficult to replicate and was the only engine I had to move up to 78 octane to replicate due to the amount of torque produced versus the amount of HP produced. It is a 2.4L (or 2.5, about in the middle,) pushrod I4 with a bore/stroke of 92mm/92mm with all cast iron construction. A two barrel carburetor was used. It produced 75HP and 123 lb-ft of torque.
I have more, will attach them in a reply.
sovavto.net
which seems to be down right now. I also used a healthy dose of google search, as there are many errors on that website.
Some of these you may notice create very little power output for their size. This is because of a few factors. Very little competition did not exactly give companies incentive to innovate, and research and development suffered. Another large contributor was the very low octane gas that many of the Soviet vehicles were designed to run on. In the US, our gas is rated by AKI (anti-knock index) which is (RON+MON)/2. In much of Europe, the gas octane rating is only rated by RON (research octane number), which is why Europe appears to have higher octane gas, though the gas available in the US and Europe are actually about the same RON number.
In soviet countries, the gas was rated in MON (motor octane number), and was rated at 76 octane. In AKI terms this means about 78 octane, and in RON terms about 80 octane. This hampered the limit of compression ratios and ignition advance which severely reduced power and fuel economy. Soviet countries did have 92 octane RON rated gasoline (88.5 AKI), but it was not as common and was mostly for higher ranking party official's cars, late model (mid 80's) consumer cars, and foreign cars.
To make these engines, I had to do a lot of fiddling with a lot of settings like year and quality. I tried to stay close to their introduction years, but some I had to make later in production as some numbers were just not possible in the game. I also had to intentionally run some engines poorly to meet their original specifications. I selected the 76 octane AKI (80 octane RON) fuel in game, but when I could not closely replicate the engine on 76 octane, I selected regular grade 86.4 AKI and let myself go up to 78 octane.
ZiS-53Rev0.lua- (34.43 KiB) Downloaded 229 times
This is the engine that was found in the GAZ-53B and GAZ-66. It was also used in a few different applications, but was a 4.3L pushrod V8 using a bore/stroke of 92mm/80mm with all aluminum construction. A two barrel carburetor was used. It produced 115HP and 166 lb-ft of torque.
- GAZ-51Rev0.lua
- (30.14 KiB) Downloaded 195 times
This was the engine used in the GAZ-51 truck, which is the precursor to the GAZ-53. This same engine was also used in the GAZ-53A. It is a 3.5L pushrod I6 with a bore/stroke of 82mm/110mm with all cast iron construction. A two barrel carburetor was used. It produced 70HP and 125 lb-ft of torque.
- UMZ-451MRev0.lua
- (31.56 KiB) Downloaded 210 times
This may be a more well known engine. This is the engine from the original UAZ-469. This one was very difficult to replicate and was the only engine I had to move up to 78 octane to replicate due to the amount of torque produced versus the amount of HP produced. It is a 2.4L (or 2.5, about in the middle,) pushrod I4 with a bore/stroke of 92mm/92mm with all cast iron construction. A two barrel carburetor was used. It produced 75HP and 123 lb-ft of torque.
I have more, will attach them in a reply.
Last edited by quantexrox on Fri May 10, 2013 3:16 pm, edited 1 time in total.