Can a 250 cc Honda Engine Be Integrated into a Car with a Button Gear Shift?

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Discussion Overview

The discussion revolves around the feasibility of integrating a 250 cc Honda engine into a car with a button gear shift mechanism. Participants explore various methods for shifting gears, considering both mechanical and electronic solutions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using a small motor to automate the gear shift pedal, questioning its feasibility and effectiveness.
  • Another proposes hydraulic shifting using CO2 cartridges, raising concerns about weight comparisons between this system and a motorized approach.
  • A participant mentions that adding a linkage from the gearbox to a regular floor-mounted stick could be a straightforward solution, suggesting a cable system as potentially the easiest method.
  • One contributor recommends using a double solenoid for shifting, emphasizing the importance of matching the solenoid's strength to the required effort.
  • There is a request for clarification on what a solenoid is and its applications in cars.
  • A participant elaborates on the idea of using a motor for gear shifting with a button or paddle while still operating the clutch manually.
  • Another participant defines a solenoid as an electromagnetic device that moves components, explaining its typical uses in automotive applications.
  • A suggestion is made to search for "solenoid" instead of "selenoid," with a personal opinion favoring mechanical linkages over solenoids due to potential weight and complexity issues.
  • A later reply reiterates the mechanical linkage approach, citing a similar setup seen in a dune buggy as an example.

Areas of Agreement / Disagreement

Participants express differing opinions on the best method for gear shifting, with some favoring mechanical linkages and others considering electronic solutions like motors and solenoids. No consensus is reached on the optimal approach.

Contextual Notes

Participants discuss various assumptions regarding weight, complexity, and effectiveness of different shifting mechanisms without resolving these factors. The discussion includes technical terms that may require further clarification for those unfamiliar with automotive engineering.

nikhilesh
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I've a gearbox from a 250 cc Honda engine. The pattern in one down and four up. This engine will be integrated into a car, so the changing of gears will be difficult with the foot pedal. wouldn't it ? :) . So i decided to integrate a small motor to the gear shift pedal so that it can change gears. Is this feasible?
Will it work?
any answers?
 
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what about hydraulic shifting? Like using a paintball CO2 bottle or those 12 gram CO2 cartridges.

Is weight a concern? Would the motor and its power supply be lighter than a CO2 shifting system?
 
It shouldn't be hard to add a linkage from the gearbox to a regular floor-mounted stick. A cable system would probably be easiest.
 
SELENOID A DOUBLE should work to shift up and down
trick is to match it to the effort required
not too strong or weak
but there are a lot of car [12v] selenoids in use
a trip to a junk yard should get you a bunch
 
what exactly is a selenoid? what's it used for in a car?
 
and the idea behind the motor, is to make the gear shift with a button or paddle... while still using the clutch with the other hand... all this on the steering wheel
 
a selenoid is a el-trick magnet that moves something
a double throw selenoid moves in and out depending on current direction
most are switches but some move things like on a starter or a air flow flap
 
You may have better luck searching for a 'selenoid' if you spell it 'solenoid'.

Personally, I think this sounds like the kind of application where you'd be much better off with a mechanical linkage of some sort. Danger's suggestion of cables would be worth looking at, or (depending on packaging constraints) a simple system of pivoting rods.
 
Last edited:
Danger said:
It shouldn't be hard to add a linkage from the gearbox to a regular floor-mounted stick. A cable system would probably be easiest.

This is an excellent way to do it. I recently saw an internet video that had just this setup in a dune buggy with a rear-mounted 1200cc crotch-rocket engine in it. There was a "shifter" next to the driver, forward was shift up and backward was shift down.

Using a solenoid is extra weight and extra trouble. I too would go for the mechanical shift linkage approach.
 

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