The 7.5 and Inferno ST are very different interms of what you asked. The 7.5 is a buggy and the ST is a truggy. Gear ratio are very different due to the size of the wheels. The ST has a longer chassis with longer arms.
Interms of speed, they should be very similar (The buggy should be “alittle” faster). The .28 engine has more torque for sure, but due to the weight and size of the car, it’s slower. An example would be a good .21 engine can be way faster then a .28 engine. The bigger displacement is usually torque related and not speed related (RAW power!!)
HN wheels on the 7. WILL fit with the proper adapters, but you’ll probably kill the engine in no time as the gear ratio won’t be able to handle the load. By the way, the HN truggy wheels has a 28mm offset, so you should use ZERO offset wheels if you convert the buggy to truggy.
If you want buggy speed with truggy size, you can upgrade the engine on the ST to a more powerful engine (RB, STS, Picco…etc etc).
Here are the info for both the 7.5 and ST.
7.5
Length 496mm
Width 307mm
Height 189mm
Wheelebase 323mm - 328mm
Track(F/R) 258/261mm
Tyres Size(F/R) φ 116 x 42mm
Gear taito 11 : 7 : 1
Total Weight approx. 3200g
Engine(not incle.) GS-21R
ST
Length 500mm
Width 415mm
Height 150mm
Ground Clearance 35mm
Wheelbase 350mm
Tread (F & R) 335mm / 337mm
Tires (F & R) Φ 140 x 72mm
Gear Ratio 15.22 : 1
Weight 3,450g (approx.)
Motor GXR28 |
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