Does stroking have any influence on detonation, good or bad?

[dibbons]

Just wondering how stroking a 360 effects the chance of detonation, assuming compression ratio is the same between standard 360 and the 406? Does stroking have the same effect on more or less detonation tendencies on all motors? Thank you.

 

[MOPAROFFICIAL]

Just wondering how stroking a 360 effects the chance of detonation, assuming compression ratio is the same between standard 360 and the 406? Does stroking have the same effect on more or less detonation tendencies on all motors? Thank you.

One could argue rod length at a given stroke...the stroke increase makes the existing rod shorter, the rod ratio gets lower...the dwell time at tdc is less as the rod gets shorter...runs away from detonation faster. Lol planting the seeds...

 

[Pascamp]

I've never heard anything about stroke having an effect, but bore size definitely does. Huge bore big blocks are very sensitive to detonation.

 

[RustyRatRod]

Stroking......or engines with a longer stroke than shorter make it easier to achieve higher compression ratios.

 

[diymirage]

maybe not on detonation...but it has a HUGE effect on incineration...of the tires that is

 

[72Dart6pack]

Stroking? Wait this is a family site. Never mine. Lol

 

[roccodart440]

Detonation has a lot more to do with the rod ratio than the stroke itself.

 

[MOPAROFFICIAL]

Detonation has a lot more to do with the rod ratio than the stroke itself.

Well look at that..

 

[Max1196]

https://www.hemmings.com/magazine/hcc/2009/06/The-Mechanical-Advantage/1827793.html
Is this of any value?

 

[yellow rose]

One could argue rod length at a given stroke...the stroke increase makes the existing rod shorter, the rod ratio gets lower...the dwell time at tdc is less as the rod gets shorter...runs away from detonation faster. Lol planting the seeds...

You are very close on this.

 

[yellow rose]

Detonation has a lot more to do with the rod ratio than the stroke itself.

This is correct.

 

[yellow rose]

As the R/S ratio gets lower, all that beloved quench you worked so hard to achieve gets pissed away by the piston being pulled away from TDC much quicker.

The lower the R/S ratio, the MORE timing you need.