What is a Stroker Motor?

[ZABMANN]

I have no clue what a stroker is.. Can someone explain what it is for me please? I have tried to look on google but no luck. I would like to know the basics, advantages and disadvantages of a stroker.

 

[Dsmj89]

A stroker motor is a motor, for example our motors, the 4g63t, 2.0l block, has been stroked to a bigger displacement of 2.3 or 2.4.
A stroker kit as you may also see are kits that usually bring upgraded cranks, pistons and rods which increase the car's displacement. This results in more torque down low. Good for spooling big turbos.

 

[EvoRage]

Here is a great article on the stroker motor and the various aspects of it vs. the 2.0. It's a lengthy read but well worth it! www.kidzuku.com/StrokeOrNot.pdf

 

[ZABMANN]

I'm new to the insides of motors and dont know that much honestly... hense the Newbie Forums. So to my point.. What is displacement?

 

[ZABMANN]

Here is a great article on the stroker motor and the various aspects of it vs. the 2.0. It's a lengthy read but well worth it! www.kidzuku.com/StrokeOrNot.pdf

+1

 

[DSM1G90]

A "stroker" motor is a 4G63 block with a 4G64 crank in it. the 4G64 crank has a longer stroke to give more bottom end torque since this makes the block an "undersquare" configuration (bore is lesser in size than the stroke in inches) This, unfortunately reduces the peak RPM range.

A 'destroked' motor is a 4G64 block with a 4G63 crank making it a 2.1L motor that is 'square' (bore and stroke are the same size in inches) for more top end RPM run.

 

[ZABMANN]

A "stroker" motor is a 4G63 block with a 4G64 crank in it. the 4G64 crank has a longer stroke to give more bottom end torque since this makes the block an "undersquare" configuration (bore is lesser in size than the stroke in inches) This, unfortunately reduces the peak RPM range.

A 'destroked' motor is a 4G64 block with a 4G63 crank making it a 2.1L motor that is 'square' (bore and stroke are the same size in inches) for more top end RPM run.

In your opinion which is better? Stroked or destroked?

 

[eclipse012]

check out vfaq.com and you will find all your answers.

 

[Calan]

In your opinion which is better? Stroked or destroked?

That question doesn't have a simple answer. It completely depends on what the car will be used for, what kind of power curve you're shooting for, HP goals, the turbo you are running, etc.

I want a fast spooling street car with more low end torque, rather than a high-reving drag car...so I went with a stroker.

 

[DSM1G90]

The stock 4G63 motor is just barely "oversquare" with the stroke just slightly larger than the bore - 85mm bore and 88mm stroke - to give it the best of both worlds: a decent low end torque and higher top end revs than a conventional 4 cyl motor.

But, "yep" it's all want you want your vehicle to be and do ...

so I went with a stroker

Is which Chrysler did with their "Skittle" Neon SRT4: took that 420A and stroked it to 2.4L with a larger crank thus giving it major low torque power and a goofball, reverse spinning, 'plug and play' proprietary turbo from Mitsubishi that only fits in with this NEON to make it a 265hp stock street racer, but it poops out at 6100RPM due to the long stroke that motor has .. I think the stroke is 105mm long and never destined for drag racing.

It's more to chase against a "Suby" Impresa STi Turbo as a rally car racer than with a DSM with a motor destined for drag racing.

-DSM

 

[Defiant]

Holy crap. You're on the web. Meet Mr. Google. He can do spoon-feeding even better than we can.