Since the engine has been changed from gasoline to diesel, the torque should increase significantly in place of RPM. When both horsepower and torque are high, the vehicle gains stronger pushing force for heavy loads, resulting in faster acceleration as well.
Unfortunately, I was unable to find any data on the engine torque of the Tatra 928.
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do we have its specs like size and shape displace etc ? you can just calculate tho its a lot of math
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We know some basic specs from later versions of the 928 - 12.7 litres, bore 12cm, stroke 13cm
But more modern ones used in trucks etc were usually turbo- and/or super-charged and getting over 400 hp - eg see https://www.roadtrains.com.au/articles/v8-tatra-815-8x8-all-wheel-drive-review/
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The closest one is likely the Tatra 928-3. It is the engine used in the OT-810, which is well-known as the “Sd.Kfz. Fake 251”.
It was probably detuned with a reduced displacement to prioritize operating range. Its displacement and torque are both larger than those of the standard Hetzer’s Praga AC 2800 (7,754 cc / 515 Nm), with 12,700 cc and 813 Nm respectively. The original Tatra 928 fitted to the Hetzer Starr would have had slightly higher output figures, so it is certain that the Starr would have had superior acceleration compared to the normal Hetzer.
And, late-production Hetzers were fitted with a transmission with lower gear ratios than the early models. This change helped reduce wear on the transmission and improved acceleration from a standstill.
is this the engine related to the PZ38T NA ?
No
OT-810 Tatra 928-3 Engine sound
The engine sound of Tatra 928 (V8) might have been like a slightly quieter version of Tatra 103 (V12) engine in the Sd.Kfz.234.
I regret to inform you of bad news…
The suggestion I revised has been deleted again. I’ll try asking the moderator one more time.
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https://www.pzfahrer.net/starr.html
Gaijin will probably “forget” to add the stabilizer & coaxial MG:
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